DEPARTMENT OF THE INTERIOR 

John Barton Payne, Secretary 



United States Geological Survey 

George Otis Smith, Director 

WATER-SUPPLY Paper 447 



SURFACE WATER SUPPLY 

OF THE 

PACIFIC SLOPE OF SOUTHERN CALIFORNIA 



BY 



H. D. McGLASHAN 



Prepared In cooperation with 
THE STATE OP CALIFORNIA 





WASHINGTON 

GOVERNMENT PRINTING OFFICE 
1921 



Qass 




Book- .rsrjs s* 



DEPARTMENT OF THE INTERIOR 

John Barton Payne, Secretary 



United States Geological Survey 

George Otis Smith, Director 



Water-Supply Paper 447 



SURFACE WATER SUPPLY 




PACIFIC SLOPE OF SOUTHERN CALIFORNIA 



H. D. McGLASHAN 



Prepared in cooperation with 
THE STATE OF CALIFORNU 




WASHINGTON 

GOVEBNMENT PRINTING OFFICE 

1921 






LIBRARY OF CONGRESS 



CONTENTS. 



Introduction 9 

Investigations of stream flow in California 10 

Cooperation and acknowledgments 11 

Definition of terms 13 

Explanation of data 14 

Conditions at gaging stations in southern California 15 

Accuracy and reliability of field data and computed records 17 

Convenient equivalents 18 

Gaging stations 20 

Tia Juana River basin 22 

General features 22 

Gaging-station records 23 

Tia Juana River near Nestor, Calif 23 

Cottonwood Creek near Dulzura, Calif 24 

Pine Valley Creek near Dulzura, Calif 36 

Dulzura conduit near Dulzura, Calif 39 

Miscellaneous measurements. 43 

Sweetwater River basin , 44 

General features 44 

Gaging-station records .....■..■.....:..:.,..; 44 

Sweetwater River near Descanso, Calif. 44 

Sweetwater River near Dehesaj Calif. 54 

Sweetwater River at Sweetwater "reservoir, Calif 57 

Miscellaneous measurements 58 

San Diego River basin 58 

General features 58 

Gaging-station records 59 

San Diego River at diverting dam near Lakeside, Calif 59 

San Diego River at Lakeside, Calif 65 

San Diego River near Santee, Calif 79 

San Diego River at San Diego, Calif 83 

Boulder Creek near Julian, Calif 86 

Boulder Creek near Lakeside, Calif 90 

Cuyamaca Water Co. 's flume at diverting dam near Lakeside, Calif. . . 93 

Cuyamaca Water Co. 's flume near Lakeside, Calif 99 

South Fork of San Diego River near Alpine, Calif 108 

South Fork of Cuyamaca Water Co. 's flume near Alpine, Calif 110 

. San Vicente Creek at Foster, Calif 113 

Miscellaneous measurements 114 

San Dieguito River basin 116 

General features 116 

Gaging-station records 116 

Santa Ysabel Creek near Santa Ysabel, Calif 116 

Santa Ysabel Creek near Mesa Grande, Calif 118 

3 



4 CONTENTS. 

San Dieguito River basin — Continued. 

Gaging-station records — Continued. Page. 

Santa Ysabel Creek near Ramona, Calif 125 

Santa Ysabel Creek near Escondido, Calif. 133 

San Dieguito River at Bernardo, Calif 140 

San Dieguito River near Bernardo, Calif 143 

San Dieguito River near Del Mar, Calif 146 

Black Canyon Creek near Mesa Grande, Calif 148 

Temescal Creek near Almond, Calif 151 

East San Pasqual ditch near Escondido, Calif 153 

Guejito Creek near Escondido, Calif 155 

West San Pasqual ditch near Escondido, Calif 157 

Santa Maria Creek near Ramona, Calif 159 

Miscellaneous measurements 165 

Escondido Creek basin 165 

San Luis Rev River basin 165 

General features 165 

Gaging-station records 166 

San Luis Rey River near Warner Springs, Calif 166 

San Luis Rey River near Mesa Grande, Calif 170 

San Luis Rey River at diversion flume, Calif 178 

San Luis Rey River near Nellie, Calif 180 

San Luis Rey River near Pala, Calif 182 

San Luis Rey River at Pala, Calif 191 

San Luis Rey River at Bonsall, Calif 192 

San Luis Rey River near Bonsall, Calif 196 

San Luis Rey River near Oceanside, Calif 199 

San Luis Rey River at Oceanside, Calif 201 

Canada Verde Creek near Warner Springs, Calif 202 

Agua Caliente Creek near Warner Springs, Calif 202 

West Fork of San Luis Rey River near Warner Springs, Calif 203 

Matagual Creek near Warner Springs, Calif 206 

Carrizo Creek near Warner Springs, Calif 209 

Susanna Creek near Warner Springs, Calif 212 

Escondido Mutual Water Co. 's canal near Nellie, Calif 215 

Rincon Indian Reservation ditch near Valley Center, Calif 226 

Pala Indian Reservation canal at Pala, Calif 226 

San Luis Rey ditch near San Luis Rey, Calif 228 

Miscellaneous measurements 229 

Santa Margarita River basin 233 

General features 233 

Gaging-station records 233 

Temecula Creek near Temecula, Calif 233 

Miscellaneous measurements 234 

Santa Ana River basin - , 235 

General features 235 

Gaging-station records 236 

Santa Ana River near Mentone, Calif 236 

Southern California Edison Co. 's canal and Greenspot pipe line near 

Mentone, Calif 262 

Mill Creek in canyon at head works of Crafton canal, Calif 280 

Mill Creek at Forest Home, Calif 285 

Highlands canal near Mentone, Calif 295 

Redlands canal near Mentone, Calif 297 



CONTENTS. O 

Santa Ana River basin — Continued. 

Gaging-station records— Continued. Page. 

Waterman Canyon Creek near San Bernardino, Calif ^ - 299 

Devil Canyon Creek near San Bernardino, Calif 302 

Lytle Creek at mouth of canyon near Rialto, Calif 304 

Lytle Creek near San Bernardino, Calif 309 

San Jacinto River near Elsinore, Calif 318 

Elsinore Lake at Elsinore, Calif 321 

Temescal Creek near Elsinore, Calif 324 

Temescal Creek near Rincon, Calif 326 

San Antonio Creek near Claremont, Calif 327 

San Antonio Creek near Upland, Calif 331 

Miscellaneous measurements of San Antonio Creek 342 

Southern California Edison Co.'s canal near Claremont, Calif 346 

Chino Creek at Rincon 348 

Cucamonga Creek 349 

Miscellaneous measurements 350 

Water absorbed in sands and gravel 360 

Return waters in San Bernardino County 361 

San Gabriel River basin 371 

General features 371 

Gaging-station records 373 

San Gabriel River above Fish Fork, near Azusa. Calif 373 

San Gabriel River at head works near Azusa, Calif 374 

San Gabriel River near Azusa, Calif 375 

Fish Fork of San Gabriel River near Azusa, Calif 402 

Iron Fork of San Gabriel River near Azusa, Calif 403 

Coldwater Creek above mouth, Calif 404 

West Fork of San Gabriel River above North Fork, Calif 405 

West and North branches of North Fork of San Gabriel River at weir, 

Calif 405 

Southern California Edison Co. 's canal near Azusa, Calif 406 

Tunnel diversion near Azusa, Calif 420 

Rogers Creek near Azusa, Calif 421 

San Dimas Creek near San Dimas, Calif 422 

Fish Creek near Duarte, Calif 425 

Sawpit Creek near Monrovia, Calif 427 

Monrovia pipe line near Monrovia, Calif 430 

Miscellaneous measurements 433 

Water absorbed in sands and gravel 438 

Los Angeles River basin 439 

General features 439 

Records of measui'ement 440 

Los Angeles River at the Narrows, Calif 440 

Diversions from Los Angeles River 448 

Pacoima Creek near San Fernando, Calif 449 

Tujunga Creek near Sunland, Calif 452 

Haines Creek near Tujunga, Calif 455 

Arroyo Seco near Pasadena, Calif 457 

Eaton Creek near Pasadena, Calif 464 

Santa Anita Creek near Sierra Madre, Calif 466 

Little Santa Anita Creek near Sierra Madra, Calif 468 

Miscellaneous measurements 471 

Water absorbed in sands and gravel 475 



b CONTENTS. 

Page. 

Malibu Creek basin 476 

General features 476 

Gaging-station records 476 

Malibu Creek near Calabasas, Calif 476 

Triunfo Creek near Calabasas, Calif 480 

Santa Clara River basin 482 

General features 482 

Gaging-station records 483 

Santa Clara River at Fillmore, Calif 483 

Piru Creek near Piru, Calif 484 

Sespe Creek near Sespe, Calif 487 

Sespe Creek at Sespe, Calif 490 

Santa Paula Creek near Santa Paula, Calif 492 

Miscellaneous measurements 495 

Ventura River basin 498 

General features 498 

Gaging-station records 498 

Ventura River near Nordhoff, Calif 498 

Ventura River near Ventura, Calif 501 

Miscellaneous measurements 504 

Streamflow from minor drainage basins in Santa Barbara County 505 

Carpinteria Creek basin 505 

Gobernador Creek near Carpinteria. Calif 505 

Diversion from Gobernador Creek near Carpinteria, Calif 507 

Mission tunnel near Santa Barbara, Calif 508 

San Roqui Creek 508 

San Jose Creek near Goleta, Calif 509 

Loma Abajo River 511 

Gato Creek 511 

Santa Ynez River basin 51? 

General features 512 

Gaging-station records 513 

Santa Ynez River near Santa Barbara, Calif 513 

Santa Ynez River near Lompoc, Calif 527 

Mono Creek near Santa Barbara, Calif 536 

Miscellaneous measurements 538 

Miscellaneous measurements of streams in Santa Barbara County 539 

Santa Maria River basin 540 

General features 540 

Gaging-station records 541 

Santa Maria River near Santa Maria, Calif 541 

Miscellaneous measurements 542 

Floods 543 

Records of floods 543 

Flood of 1914 - 544 

Flood of 1891 549 

Index 551 



ILLUSTRATIONS. 

Page. 
Plate I. Map of a part of southern California, showing location of gaging 

stations in Pacific slope drainage basins In pocket. 

II. Map of a part of southern California, showing location of gaging 

stations in Pacific slope drainage basins In pocket. 

III. A, Price current meters ; B, Typical gaging station 14 

IV. Water-stage recorders: A. Stevens continuous; B, Gurley printing; 

C, Friez 15 

V. Concrete controls: A, San Luis Rey River near Pala, Calif.; B, 
Sweetwater River near Dehesa, Calif. ; C, Santa Ysabel Creek 

near Ramona, Calif 16 

VI. J., Control of concrete and solid rock on Santa Ysabel Creek near 
Mesa Grande, Calif.; B, Concrete control on Sweetwater River 
near Descanso, Calif.; C, Wading measurement on San Gabriel 
River near Azusa, Calif 17 

VII. A, Sweetwater dam, September 17, 1918; B, Lake Hodges dam, San 

Dieguito River 44 

VIII. Murray dam. March 9, 1918; J., Upstream side; -B, Downstream side. . . 45 
IX. Gaging stations: A, San Diego River at diverting dam, near Lakeside, 

Calif.; B, Cuyamaca W^ater Co.'s flume at diverting dam, near 
Lakeside, Calif.; C, Cuyamaca Water Co.'s flume at Los Coches 

Creek, near Lakeside, Calif 60 

X. Gaging stations: A, Santa Maria Creek near Ramona, Calif.; B, 
Santa Ana River near Mentone, Calif., showing vertical staff gage; 

C, Tunnel diversion near Azusa, Calif. , showing weir 61 

XI. Well and house for water-stage recorders: A, Santa Ana River near 
Mentone, Calif.; B, Rogers Creek near Azusa, Calif.; C, Santa 

Anita Creek near Sierra Madre, Calif 236 

XII. Concrete well and house for water-stage recorders: A, San Dimas 
Creek near San Dimas, Calif.; B, C, San Gabriel River near Azusa, 
Calif 237 

XIII. Concrete well and house for water-stage recorders: A, Rogers Creek 

near Azusa, Calif. ; jB, Fish Creek near Duarte, Calif. ; C, Little 
Santa Anita Creek near Sierra Madre, Calif 422 

XIV. A, Concrete well and shelter on Sawpit Creek near Monrovia, Calif.; 

B, Double concrete-boulder control on Eaton Creek near Pasa- 
dena, Calif.; C, Concrete well, house, and control on Arroyo Seco 

near Pasadena, Calif 423 

XV. Concrete well, house, and control: A, Pacoima Creek near San 
Fernando, Calif.; B, Tujunga Creek, near Sunland, Calif.; C, 

Haines Creek near Tujunga, Calif 450 

XVI. A, Waterman Canyon Creek near San Bernardino, Calif., showing 
gravel and sand deposited by first high water after forest fire; 
B, Foundation for Gibraltar dam, on Santa Ynez River near Santa 
Barbara, Calif. ; C, Cable section on Santa Ynez River near Santa 

Barbara, Calif 451 

XVII. Views after flood of 1914: A, Arroyo Seco near Los Angeles, Calif.; 
B, Ventura River near Ventura, Calif.; C, Santa Paula Creek 

near Santa Paula, Calif 492 

XVIII. A, San Diego River at Mission dam, near Santee, Calif., after flood 
of 1916; B, Gaging station on Cottonwood Creek near Dulzura, 

Calif. ; C, Dulzura conduit at Barrett dam site, Calif 493 

7 



SURFACE WATER SUPPLY OF THE PACIFIC SLOPE 
OF SOUTHERN CALIFORNIA. 



By H. D. McGlashan. 



INTRODUCTION. 

Since 1848, when repairs to a mill race near Georgetown, Eldorado 
County, led to the discovery of gold in California, the industrial 
development of the State has been closeb linked with the develop- 
ment and utilization of its water resourcr Information concerning 
the quantity of water carried by the "*''' .ims has been and will con- 
tinue to be essential to the developric^nt of these resources, for the 
fundamental importance of stream-flow data is now so thoroughly 
recognized that it is almost impossible to finance any project de- 
pending on stream flow without presenting authentic records of flow 
covering a period of years. 

On account of the pronounced differences in natural conditions — 
especially as regards topography, geologic formations, forests, and 
climate — stream-measurement work in southern California presents 
many problems not common to similar work in the central and 
northern parts of the State. 

The rock formations have been badly shattered by extensive fault- 
ing and thus furnish great quantities of boulders. The soil is very 
porous and is easily eroded. The main drainage channels are com- 
paratively short and in the mountainous sections have very steep 
slopes, so that during periods of high run-off the streams have excessive 
velocities. An interesting example is furnished by San Gabriel River, 
whose source is about 10,000 feet above sea level and whose mouth 
is approximately 50 miles distant in an air line. The maximum ob- 
served velocity for the measurement of San Gabriel River near Azusa 
on January 19, 1916, was 30 feet per second, and the mean velocity 
for the measurement was 22.2 feet. These high velocities produce 
marked changes in cross sections of channels at gaging stations. 

The stream channels, even in the canyons, are unstable, and they 
scour and fill with unfailing regularity whenever there is a sudden 
change in run-off. The stream beds in the canyons are composed 
mainly of gravel and boulders, the size of the material depending on 
the slope of the channel. At the mouths of the canyons ^here are 
well-defined debris cones, where the larger part of the rolling debris 
is deposited. The stream channels from the debris cones to the sea 



10 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

are cut through fine gravels or soils of sandy loam and are subject to 
alluvial and erosional stream action which results in continual 
shifting and changing within the channel and, during floods, even in 
shifting of the channels themselves. 

Except at the highest elevations the vegetation consists chiefly of 
brush interspersed with the usual growth found in similar arid regions. 
During the long dry seasons lightning and careless campers are the 
cause of many fires, which are, however, usually held in control by 
the efficient fire patrol of the United States Forest Service. Occa- 
sionally a fire gets beyond immediate control and burns over a small 
drainage basin. As a result the first heavy rainfall washes into the 
channels of the small streams much sand and fine gravel, at times 
filling them to the level of their banks with this material, which is 
gradually eroded after the flood stage has passed. (See PL XVI, Aj 
p. 451.) 

In this region there are two seasons — the rainy and the dry. The 
rainy season usually covers less than half the year, and the greater 
part of the rainfall occurs during the heavy storms that affect com- 
paratively small areas. As a rule flood stages last only for short 
periods. ^ 

INVESTIGATIONS OF STREAM FLOW IN CALIFORNIA. 

The measurement of the flow of streams in California was begun 
by the California State engineer in 1878, in accordance with a law 
requiring him ' ' to investigate the problems of the irrigation of the 
plains, the condition and capacity of the great drainage lines of the 
State, and the improvement of the navigation of rivers.^' The work 
was restricted to a few localities in the Sacramento and San Joaquin 
basins, the principal station being on the Sacramento at Collinsville. 

The State engineer's office was discontinued in 1884, and practi- 
cally no further stream studies were made until 1894, when engineers 
of the United States Geological Survey were sent into California and 
made a few measurements of streams in the semiarid parts of the 
State. The following year the Survey established a station on Sac- 
ramento River at Red Bluff and since that time it has gradually ex- 
tended the work until it now has available records of flow at about 
500 stations on California streams. Many records have also been 
collected by private persons. The first stations were located only on 
streams whose waters were to be used for irrigation, but records are 
now available on streams adapted to all uses, including navigation, 
domestic water supply, and power. 

The investigations of the quantity of water in the streams have 
been supplemented by studies of the climatic and other conditions 

1 Records of precipitation for 106 stations in San Diego County, covering periods varying from 1 year to 
65 years, are presented in connection with a discussion of the ground waters of the western part of the county 
by A. J. Ellis and C. H. Lee, published by the U. S. Geological Survey as Water-Supply Paper 44& 



COOPERATION AND ACKNOWLEDGMENTS. 11 

affecting stream flow, and a mass of valuable information has thus 
been collected affording data for all phases of hydraulic work. 

The stream-flow records collected by the Survey and cooperating 
parties up to the end of June, 1912, were assembled and published 
in 1912 and 1913 as three water-supply papers bearing titles as 
follows : 

298. Water resources of California, Part I, Stream measurements in Sacramento 

River basin. 

299. Water resources of California, Part II, Stream measurements in San Joaquin 

River basin. 

300. Water resources of California, Part III, Stream measurements in Great Basin 

and Pacific coast river basins. 

The records for the Pacific slope of southern California, including 
those published in Water-Supply Paper 300 and records collected up 
to September 30, 1918, are presented in this report. ' The area 
covered and the location of the gaging stations maintained are 
shown on the topographic maps forming Plates I and II (in pocket) . 

COOPERATION AND ACKNOWLEDGMENTS. 

Cooperation in stream measurements between the United States 
Geological Survey and State of California was first provided for by 
the State legislature in an act approved March 16, 1903. This act 
covered the period from July 3, 1903, to June 30, 1905, and was in sub- 
stance as follows: 

The State Board of Examiners are hereby empowered to enter into contracts with 
the Director of the United States Geological Survey for the purpose of making topo- 
graphic maps to the extent of twenty thousand dollars ; also for the purpose of gaging 
streams; surveying reservoir sites and canal locations, for the conservation and utili- 
zation of the flood and storm waters of the State, to the extent of fifteen thousand 
dollars. * * * 

Similar acts, approved March 20, 1905, and March 11, 1907, 
provided for the continuation of the work until June 30, 1909, with 
an increased biennial appropriation of $30,000 for topography and 
$20,000 for hydrography. The act of March 11, 1907, named the 
Department of Engineering of the State of California as the cooperat- 
ing party. 

An act placing cooperation between the State of California and the 
United States Geological Survey on a permanent basis was approved 
April 22, 1909, and provided as follows: 

The Department of Engineering is hereby empowered to carry on topographic surveys 
and investigations into matters pertaining to the water resources of the State along the 
lines of hydrography, hydro-economics and the use and distribution of water for 
agricultural purposes, and to that end, where possible and to the best interest of the 
State, shall enter into contracts for cooperation with the different departments of the 
Federal Government in such amounts as may be an equitable and necessary division 
of the work. The State engineer, with the consent of the governor, may maintain 
and continue such investigations where there is available money not covered by 



12 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

cooperation contract. For the permanent maintenance of said surveys and investiga- 
tions there is hereby continuously appropriated out of the general fund of the State 
treasury for each and every fiscal year, commencing with the date upon which this act 
becomes effective, the sum of thirty thousand dollars. 

Of this sum $9,000 is allotted annually to investigations of water 
resources. 

In 1911 the California Legislature provided for a State Board of 
Control (Water Powers) to pass on matters pertaining to the appro- 
priation of water for power development, and for a Conservation Com- 
mission to investigate and collect information concerning forestry, 
water, and other natural resources and their use, for the purpose of 
revising the laws of the State relating thereto. The legislature of 
1912 transferred the duties of the State Board of Control (Water 
Powers) to the State Water Commission. 

The members of the Conservation Commission were George C. Par- 
dee, chairman; Francis Cuttle, and J. P. Baumgarten; of the State 
Water Commission, Hiram W. Johnson, governor; Charles D. Marx, 
chairman; S. C. Graham; Harold T. Power; and W. F. McClure, State 
engineer. Louis R. Glavis was appointed secretary of both com- 
missions and was later succeeded by Josephine A. Patten. These 
commissions made substantial appropriations for stream-gaging work 
in cooperation with the Geological Survey, and as a result a large 
number of new river-measurement stations were established and old 
stations were improved. 

In the present work the State of California is represented by the 
Department of Engineering, State of California, W. F. McClure, State 
engineer, and the State Water Commission. The members of this 
commission are William D. Stephens, governor (ex officio); W. F. 
McClure, State engineer (ex officio) ; A. E. Chandler, president; W. A. 
Johnstone; and Irving Martin. Josephine A. Patten is secretary. 

The United States Forest Service, United States Weather Bureau, 
United States Indian Office, Los Angeles County, the cities of San 
Diego and Santa Barbara, the Sweetwater Water Co., the Cuyamaca 
Water Co., and the Voloan Land & Water Co. have also cooperated, 
and assistance has been rendered and many complete records of 
stream flow furnished by other companies and private persons to 
whom credit is given in connection with the published data. 

The earliest stream-gaging work in the State, beginning in 1878, 
was carried on under the direction of William Ham. Hall, State engi- 
neer, by A. Boschke and other assistant engineers, among whom was 
C. E. Grunsky, who continued in charge of office computation and 
frequently acted as hydrographer until the State Engineer's Depart- 
ment was abolished. Work by the United States Geological Survey 
was begun in 1894, under the direction of F. H. Newell, chief hydrog- 
rapher, by Arthur P. Davis, and Joseph B. Lippincott. On the 
establishment of the United States Reclamation Service in 1902, Mr. 



DEFINITION OF TERMS. 13 

Lippincott became supervising engineer for California, and the 
field work was continued under his direction by William B. Clapp and 
Samuel G. Bennett, until the separation of the Reclamation Service 
from the Geological Survey in 1906, when Mr. Clapp became district 
engineer. On Mr. Clapp's death in December, 1911, H. D. McGlashan 
was appointed district engineer. 

DEFINITION OF TERMS. 

The volume of water flowing in a stream — the '^run-off" or '^ dis- 
charge" — is expressed in various terms, each of which has become 
associated with a certain class of work. These terms may be divided 
into two groups — (1) those that represent a rate of flow, as second- 
feet, gallons per minute, miner's inches, and discharge in second-feet 
per square mile, and (2) those that represent the actual quantity 
water, as run-off in depth in inches, acre-feet, and millions of cubic 
feet. The principal terms used in this report are second-feet, second- 
feet per square mile, run-off in inches, and acre-feet. They may be 
defined as follows : 

''Second-feet" is an abbreviation for ''cubi-c feet per second." A 
second-foot is the rate of discharge of water flowing in a channel of 
rectangular cross section 1 foot wide and 1 foot deep at an average 
velocity of 1 foot per second. It is generally used as a fundamental 
unit from which others are computed by the use of the factors given 
in the tables of convenient equivalents (p. 18). 

''Second-feet per square mile" is the average number of cubic feet 
of water flowing per second from each square mile of area drained, 
on the assumption that the run-off is distributed uniformly both as 
regards time and area. 

''Run-off (depth in inches)" is the depth to which an area would 
be covered if all the water flowing from it in a given period were 
uniformly distributed on the surface. It is used for comparing run- 
oft' with rainfall, which is usually expressed in depth in inches. 

An "acre-foot," equivalent to 43,560 cubic feet, is the quantity 
required to cover an acre to the depth of 1 foot. The term is com- 
monly used in connection with storage. 

"Miner's inch" represents a rate of flow and varies in different 
States, as noted in the table of convenient equivalents (p. 19). In 
California it was legalized by an act approved March 23, 1901, as 
one-fortieth of a second-foot. Prior to the passage of this act the 
common usage was one-fiftieth of a second-foot. The act reads as 
follows : 

Section 1. The standard miner's inch of water shall be equivalent or equal to 
li cubic feet of water per minute, measured through any aperture or orifice. 

Sec. 2. All acts or parts of acts inconsistent with the provisions of this act are hereby 
repealed. 

Sec. 3. This act shall be in effect and force sixty days from and after its passage. 



14 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

One-fiftieth of a second-foot is still generally used in southern 
California. 

The following terms not in common use are here defined: 

''Stage-discharge relation," an abbreviation for the term ''relation 
of gage height to discharge. 

"Control," a term used to designate the natural section or stretch 
of the channel, or artificial structure below the gage that determines 
the stage-discharge relation at the gage. It should be noted that the 
control may not be the same section or sections at all stages. (See 
Pis. V and VI.) 

The "point of zero flow" for a gaging station is that point on the 
gage — the gage height — at which water ceases to flow over control. 

EXPLANATION OF DATA. 

The data presented in this report cover the climatic or water year 
beginning October 1 and ending September 30. At the 1st of Jan- 
uary in most parts of the United States much of the precipitation in 
the preceding three months is stored as ground water, in the form of 
snow, or in ponds, lakes, and swamps, and this stored water passes 
off in the streams during the spring break-up ; at the end of Septem- 
ber, on the other hand, the only stored water available for run-off is 
possibly a small quantity in the ground ; therefore the run-off for a 
year beginning October 1 is practically all derived from precipitation 
in that year. 

The base data collected at gaging stations (PI. Ill, B) consist of 
records of stage, measurements of discharge, and general information 
used to supplement the gage heights and discharge measurements in 
determining the daily flow. The records of stage are obtained either 
from direct readings on a staff gage or from a water-stage recorder 
(PI. IV) that gives a continuous record of the fluctuations. Measure- 
ments of discharge are made with a current meter which is operated 
from a bridge, a car suspended on a cable, or by wading (PL VI? C), 
the method adopted depending on the conditions at the station. The 
general methods are outlined in standard textbooks on the measure- 
ment of river discharge. 

From the discharge measurements rating tables are prepared that 
give the discharge for any stage, and these rating tables, when applied 
to the gage heights, give the daily discharge from which the monthly 
and yearly mean discharge is determined. 

The data presented for each gaging station in the area covered by 
this report comprise a description of the station, a table giving results 
of discharge measurements, a table showing the daily discharge of 
the stream, and a table of monthly and yearly discharge and run-off. 

If the base data are insufficient to determine the daily discharge, 
tables giving daily gage heights and results of discharge measure- 
ments are published. 



U. S. GEOLOGICAL SURVEY 



WATER-SUPPLY PAPER 447 PLATE III 




A. PRICE CURRENT METERS. 




B. TYPICAL GAGING STATION. 






h'lh'i^i 



CONDITIONS AT GAGING STATIONS. 15 

The description of the station gives, in addition to statements 
regarding location and equipment, information in regard to any con- 
ditions that may affect the constancy of the stage-discharge relation, 
covering such subjects as the shifting of control, and the cause and 
effect of backwater; it gives also information as to diversions that 
decrease the flow at the gage, artificial regulation, approximate ele- 
vation above sea level, maximum and minimum recorded stages, 
and the accuracy of the records. 

The table of daily discharge gives the discharge in second-feet 
corresponding to the mean of the gage heights recorded each day. At 
stations on streams subject to sudden or rapid diurnal fluctuation the 
discharge obtained from the rating table and the mean daily gage 
height may not be the true mean discharge for the day. When such 
stations are equipped with water-stage recorders, the true mean daily 
discharge may be obtained by computing the mean daily gage height 
and applying it to the rating table, by averaging quantities of dis- 
charge for regular intervals during the day, or by means of a dis- 
charge integrator — an instrument operating on the principle of the 
planimeter and containing as an essential element the rating curve 
of the station. 

In the table of monthly discharge the column headed ' 'Maximum" 
gives the mean flow for the day when the mean gage height was 
highest. As the gage height is the mean for the day it does not in- 
dicate correctly the stage when the water surface was at crest height 
and the corresponding discharge was consequently larger than that 
given in the maximum column. Likewise, in the column headed 
' 'Minimum," the quantity given is the mean flow for the day when 
the mean gage height was lowest. The column headed ''Mean" is 
the average flow in cubic feet for each second during the month. 
Computations recorded in the remaining columns are based on this 
average flow. 

CONDITIONS AT GAGING STATIONS ON SOUTHERN 
CALIFORNIA STREAMS. 

Natural as well as artificial conditions in southern California are 
very unfavorable for accurate stream gaging. At practically all 
points where gaging stations have been maintained the stage-dis- 
charge relation under natural conditions was continually changing. 
In establishing a gaging station a section of channel as favorable as 
possible is selected. On many streams the choice is confined to a 
short stretch on account of the intensive developments already made 
for power and irrigation. 

Artificial controls. — In 1912 the first efforts were made to control 
the stage-discharge relation by artificial means in order to reduce 
the cost of maintenance of the stations and increase the accuracy of 
the records. The first experiment was made by driving short sec- 



16 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

tions of wooden sheet piling across the channel immediately down- 
stream from the gage. A control constructed in this way was only 
temporary, as it was destroyed by the first high water, but it made 
conditions more stable during low water and indicated that more 
permanent construction would be justified. 

The next type of control built consisted of short sections of con- 
crete cut-off walls placed between large boulders, crossing the chan- 
nel in a more or less irregular manner. The sharp granite sand con- 
tinuously flowing over the crest eroded the concrete more rapidly 
than had been expected. Steel bands or angles, which were later 
embedded in the crest of the control, made this type of construc- 
tion fairly successful. The top of a short section of the control near 
the bank was left a few tenths of a foot lower than the other sections 
in order to direct the low-water flow past the gage. (See PI. V, A.) 
On several streams where there were no large boulders in the 
cross section to anchor the cut-off walls, a concrete weir has been 
built with a rectangular notch to carry the low-water discharge. 
(See PI. V, O.) Some of these controls have been protected from 
gravel and boulders by bolting planks to the upstream or top face 
of the concrete. (See PI. XII, A and PI. XIV, C.) 

Further study and experience indicated that certain changes in 
design were desirable. It was realized that an artificial control 
should conform as closely as practicable to the natural cross section, 
so as not to disturb the stream and create new and artificial condi- 
tions which nature would immediately set about to destroy. This 
led to a plan for a control projecting but a short distance above the 
channel and having a concave profile about the same as that of the 
bed. It eliminated the sharp break in the crest due to the notch for 
low-water flow and made the stage-discharge relation always sensi- 
tive to slight changes in discharge. (See PL VI, B.) These controls 
were usually built of granite boulders of various sizes, bound together 
with concrete and placed so as to give a triangular cross section with 
a fairly sharp crest. The use of boulders obtained from the stream 
bed resulted in greater durability and a slight saving in cost over 
concrete. 

Controls built as described above materially improve the per- 
manence of the stage-discharge relation and make possible the 
development of rating curves covering periods in v/hich changes in 
stage are inconsiderable. There is a tendency for sand and gravel 
to collect immediately above and on each bank. This tendency is 
especially strong during seasons of comparatively low run-off. It 
is important that the gage or low-water section be placed close to 
the upstream side of the control. 

Experiments are now being made with a double control — that is, 
two controls separated by a short stretch of channel. It appears that 



U. S. GEOLOGICAL SURVEY 



WATER-SUPPLY PAPER 447 PLATE V 




CONCRETE CONTROLS. 

A, San Luis Rey River near Ptila, Calif.; B, Sweetwater River near Dehesa, Calif.; C, Santa Ysabel 
Creek near Ramona, Calif. 



U. S. GEOLOGICAL SURVEY 



WATER-SUPPLY PAPER 447 PLATE VI 




A. CONTROL OF CONCRETE AND SOLID ROCK ON SANTA YSABEL CREEK 
NEAR MESA GRANDE, CALIF. 




B. CONCRETE CONTROL ON SWEETWATER RIVER NEAR DESCANSO, CALIF. 




C. WADING MEASUREMENT ON SAN GABRIEL RIVER NEAR AZUSA, CALIF. 



ACCURACY OF FIELD DATA. . 17 

the upper control accelerates the water, so that it transports the 
gravel and sand over the lower control, and leaves a well-defined 
pool in which the gage is placed, (See PL XIV, B.) 

Water-stage recorders. — On account of the improvement resulting 
from the construction of artificial controls it has been considered 
advisable to collect gage-height records at important stations with 
greater accuracy by installing water-stage recorders (see PI. IV) that 
give a continuous record of stage. A record of this type is especially 
valuable during floods, as it not only indicates the time and duration 
of the maximum stage but furnishes a complete record from which 
the mean daily discharge may be accurately computed. 

On account of conditions in the channels previously explained, 
water-stage recorders could not be installed in the usual manner as 
shown in Plate III, B. The intake pipe connecting the weU with the 
stream would fill up with sand and fine gravel during the first rise and 
thus seal the well. Intake pipes have been eliminated by building the 
well and shelter flush with or projecting into the stream. A number 
of small openings at various elevations are left in the stream face of 
the well and may be cleaned out from the inside as required. In 
most places the well and shelter must be built of reinforced concrete, 
in order to withstand floods. A number of types of weUs and shelters 
have been used in southern California (see Pis. XI-XV). The latest 
design is shown in Plate XI, A, and Plate XII, B and C. 

ACCURACY OF FIELD DATA AND COMPUTED RECORDS. 

The accuracy of stream-flow data depends primarily (1) on the 
permanence of the stage-discharge relation and (2) on the accuracy of 
observation of stage, measurements of flow, and interpretation of 
records. 

A paragraph in the description of the station or footnotes added to 
the tables gives information regarding the (1) permanence of the 
stage-discharge relation, (2) precision with which the discharge rating 
curve is defined, (3) refinement of gage readings, (4) frequency of 
gage readings, and (5) methods of applying daily gage heights to the 
rating table to obtain the daily discharge.^ 

For the rating tables 'SveU defined" indicates, in general, that the 
rating is probably accurate within 5 per cent; '' fairly weU defined," 
within 10 per cent; ''poorly defined," within 15 to 25 per cent. 
These notes are very general and are based on the plotting of the 
individual measurements with reference to the mean rating curve. _ 

The monthly means for any station may represent with high accu- 
racy the quantity of water flowing past the gage, but the figures 
showing discharge per square mile and depth of run-off in inches 

1 For a more detailed discussion of the accuracy of stream-flow data see Grover, N. C, and Hoyt, J. C. 
Accuracy of stream-flow data: U. S. Geol. Survey Water-Supply Paper 400, pp 53-59, 1916. 

142131°— 21— wsp 447 2 



18 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



may be subject to gross errors caused by the inclusion of large non- 
contributing districts in the measured drainage area, by lack of 
information concerning water diverted for irrigation or other use, 
or by inability to interpret the effect of artificial regulation of the 
flow of the river above the station. ''Second-feet per square mile" 
and ''run-off (depth in inches)" are therefore not computed if such 
errors appear probable. The computations are also omitted for 
stations on streams draining areas in which the annual rainfall is less 
than 20 inches. All figures representing "second-feet per square 
mile" and "run-off (depth in inches)" previously published by the 
Survey should be used with caution because of possible inherent 
but unknown sources of error. 

The table of monthly discharge gives only a general idea of the 
flow at the station and should not be used for other than preliminary 
estimates; the tables of daily discharge allow more detailed studies 
of the variation in flow. It should be borne in mind, however, that 
the observations in each succeeding year may be expected to throw 
new light on data previously published. 

CONVENIENT EQUIVALENTS. 

The following is a list of convenient equivalents for use in hydraulic 
computations : 

Table for converting discharge in second-feet per square mile into run-off in depth in inches 

over the area. 



Discharge 
(second- 
feet per 
square mile). 


Run-off (depth in inches). 


Iday. 


28 days. 


29 days. 


30 days. 


31 days. 


1 


0.03719 
.07438 
. 11157 
. 14876 
. 18595 
. 22314 
. 26033 
. 29752 
. 33471 


1.041 
2.083 
3.124 
4.165 
5.207 
6.248 
7.289 
8.331 
9.372 


1.079 
2.157 
3.236 
4.314 
5.393 
6.471 
7.550 
8.628 
9.707 


1.116 
2.231 
3.347 
4.463 
5.578 
6.694 
7.810 
8.926 
10.041 


1.153 
2.306 
3.459 
4.612 
5.764 
6.917 
8.070 
9.293 
10. 376 


2 


3 


4. ...... 




6 


7 . 


8 


9 





Note. — For part of a month multiply the run-off for one day by the number of days. 

Table for converting discharge in second-feet into run-off in acre-feet. 



Discharge 
(second- 
feet). 


Run-off in acre-feet 


Iday. 


28 days. 


29 days. 


30 days. 


31 days. 


1 


1.983 
3.967 
5.950 
7.934 
9.917 
11.90 
13.88 
15.87 
17.85 


55.54 
111.1 
166.6 
222.1 
277.7 
333.2 
388.8 
444.3 
499.8 


57.52 
115.1 
172.6 
230.1 
287.6 
345.1 
402.6 
460.2 
517.7 


59.50 
119.0 
178.5 
238.0 
297.5 
357.0 
416.5 
476.0 
535.4 


61.49 
123.0 
184.5 
246.0 
307.4 
368.9 
430.4 
491.9 
553.4 


2 


3 


4 


5 


6 


7 


8 


9 





Note.— For part of a month multiply the run-off for one day by the number of days. 



CONVEIiriENT EQUIVALENTS. 19 

Table for converting discharge in second-feet into run-off in millions of cubic feet. 



Discharge 
(second- 
feet). 




Run-ofE in 


millions of cubic feet. 




Iday. 


28 days. 


29 days. 


30 days. 


31 days. 


1 


0.0864 
.1728 
.2592 
.3456 
.4320 
.5184 
.6048 
.6912 
.7776 


2.419 
4.838 
7.257 
9.676 
12.10 
14.61 
16.93 
19.35 
21.77 


2.506 
5.012 
7.518 
10.02 
12.53 
15.04 
17.54 
20.05 
22.55 


2.592 
5.184 
7.776 
10.37 
12.96 
15.55 
18.14 
20.74 
23.33 


2.678 
5.356 
8.034 
10.71 
13.39 
16.07 
18.75 
21.42 
24.10 


2 


3 - - 


4 


5 


6 


7 


8 


9 





Note.— For part of a month multiply the run-o£E for one day by the number of days. 
Table for converting discharge in second feet into run-off in millions of gallons. 



Discharge 
(second- 
feet). 


Run-off (millions of gallons). 


1 day. 


28 days. 


29 days. 


30 days. 


31 days. 


1 


0.6463 
1.293 
1.939 
2.585 
3.232 
3.878 
4.624 
5.171 
5.817 


18.10 
36.20 
54.30 
72.40 
90.50 
108.6 
126.7 
144.8 
162.9 


18.74 
37.48 
56.22 
74.96 
93.70 
112.4 
131.2 
149.9 
168.7 


19. 39 
38.78 
58.17 
77.56 
96.95 
116.3 
135.7 
155. 1 
174 5 


20.04 
40.08 
60.12 
80.16 
100.2 
120.2 
140.3 
160.3 
180.4 


2 


3 


4 


5 


6 


7 


8 


9 





Note. — For part of a month multiply the run-off for 1 day by the number of days. 

Table for converting velocity in feet 'per second into velocity in miles jper hour. 

[1 foot persecond=0.681818 mile per hour, or two-thirds mile per hour, verynearly; 1 mile per hour =1.'^ 
feet per second. In computing the table the values 0.68182 and 1.4667 were used.] 



Feet per second 


Miles per hour for tenths of foot per second. 


(units). 





1 


2 


3 


4 


5 


6 


7 


8 


9 





0.000 
.682 
1.36 
2.05 
2.73 
3.41 
4.09 
4.77 
5.45 
6.14 


0.068 
.750 
1.43 
2.11 
2.80 
3.48 
4.16 
4.84 
5.52 
6.20 


0.136 
.818 
1.50 
2.18 
2.86 
3.55 
4.23 
4.91 
5.59 
6.27 


0.205 
.886 
1.57 
2.25 
2.93 
3.61 
4.30 
4.98 
5.66 
6.34 


0.273 
.995 
1.64 
2.32 
3.00 
3.68 
4.36 
5.05 
5.73 
6.41 


0.341 
1.02 
1.70 
2.39 
3.07 
3.75 
4.43 
6.11 
5.80 
6.48 


0.409 
1.09 
1.77 
2.45 
3.14 
3.82 
4.50 
5.18 
5.86 
6.55 


0.477 
1.16 
1.84 
2.52 
3.20 
3.89 
4.67 
6.26 
5.93 
6.61 


0. 545 
1.23 
1.91 
2.59 
3.27 
3.95 
4.64 
5.32 
6.00 
6.68 


0.614 


1 


1.300 


2 . . 


1 98 


3 


2.66 


4 


3 34 


5 


4.02 


6 


4.70 


7 


5 39 


8 


6.07 


9 


6 75 







1 second-foot equals 40 California miner's inches (law of Mar. 23, 1901). 

1 second-foot equals 38.4 Colorado miner's inches. 

1 second-foot equals 40 Arizona miner's inches. 

1 second-foot equals 7.48 United States gallons per second; equals 448.8 gallons per 
minute; equals 646,317 gallons for one day. 

1 second-foot for one year (365 days) covers 1 square mile 1.131 feet, or 13.572 inches 
deep. 

1 second-foot for one year (365 days) equals 31,536,000 cubic feet. 

1 second-foot equals about 1 acre-inch per hour. 

1 second-foot for one year (365 days) equals 724 acre-feet. 

1 second-foot for one day equals 86,400 cubic feet. 



20 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

1,000,000,000 (1 United States billion) cubic feet equals 11,570 second-feet for one 
day. 

1,000,000,000 cubic feet equals 414 second-feet for one 28-day month. 

1,000,000,000 cubic feet equals 399 second-feet for one 29-day month. 

1,000,000,000 cubic feet equals 386 second-feet for one 30-day month. 

1,000,000,000 cubic feet equals 373 second-feet for one 31-day month. 

100 California miner's inches equals 18.7 United States gallons per second. 

100 California miner's inches for one day equals 4.96 acre-feet. 

100 Colorado miner's inches equals 2.60 second-feet. 

100 Colorado miner's inches equals 19.5 United States gallons per second; 

100 Colorado miner's inches for one day equals 5.17 acre-feet. 

100 United States gallons per minute equals 0.223 second-foot. 

100 United States gallons per minute for one day equals 0.442 acre-foot. 

GAGING STATIONS. 

The following list comprises the gaging stations maintained .in 
the south Pacific slope drainage basin in California from 1890 to 
September 30, 1918. The stations are arranged in downstream 
order, tributaries being indicated by indentation. A dash following 
the date implies that the station was being maintained October 1, 
1918. The location of these stations is shown on the maps that 
form Plates I and II (in pocket) . 

Tia Juana River near Nestor, Calif., 1915. 

Cottonwood Creek near Dulzura, Calif., 1906-1915. 
Pine Valley Creek near Dulzura, Calif., 1906-7. 
Dulzura conduit near Dulzura, Calif. , 1909-1915. 
Sweetwater River near Descanso, Calif., 1905- 
Sweetwater River near Dehesa, Calif., 1913-1916. 
San Diego River at diverting dam near Lakeside, Calif., 1912-1916. 
San Diego River at Lakeside, Calif., 1905-1916. 
San Diego River near Santee, Calif., 1912- 
San Diego River at San Diego, Calif., 1912-1916. 

Boulder Creek near Julian, Calif., 1912- 

Boulder Creek near Lakeside, Calif., 1912-1916. 

Cuyamaca Water Co.'s flume at diverting dam, near Lakeside, Calif., 1912- 

Cuyamaca Water Co.'s flume near Lakeside, Calif., 1907- 

South Fork of San Diego River near Alpine, Calif., 1913-1915. 

South Fork of Cuyamaca Water Co.'s flume near Alpine, Calif., 1913-1915. 

San Vicente Creek at Foster, Calif., 1914-1917. 
Santa Ysabel Creek (head of San Dieguito River) near Santa Ysabel, Calif., 1913-1915. 
Santa Ysabel Creek near Mesa Grande, Calif., 1912- 
Santa Ysabel Creek near Ramona, Calif., 1912- 
Santa Ysabel Creek near Escondido, Calif., 1906-1912. 
San Dieguito River at Bernardo, Calif., 1912-1916. 
San Dieguito River near Bernardo, Calif. , 1916- 
San Dieguito River near Del Mar., Califs, 1912-1914. 

Black Canyon Creek near Mesa Grande, Calif., 1913- 

Temescal Creek nekr Almond, Calif., 1913-1915. 

East San Pasqual ditch near Escondido, Calif., 1912-1914. 

Guejito Creek near Escondido, Calif., 1915-1917. 

West San Pasqual ditch near Escondido, Calif., 1912-1915. 

Santa Maria Creek near Ramona, Calif., 1912- 
San Luis Rey River near Warner Springs, Calif., 1913-1916. 



GAGING STATIONS. '21 

San Luis Rey River near Mesa Grande, Calif., 1911- 

San Luis Rey River near Nellie, Calif., 1915-16. 

San Luis Rey River near Pala, Calif., 1903-1916. 

San Luis Rey River at Pala, Calif., 1912. 

San Luis Rey River at Bonsall, Calif., 1912-1916. 

San Luis Rey River near Bonsall, Calif., 1916- 

San Luis Rey River near Oceanside, Calif. , 1912-1914. 

Canada Verde Creek near Warner Springs, Calif., 1913-1915. 

Agua Caliente Creek near Warner Springs, Calif,, 1913-1915. 

West Fork of San Luis Rey River near Warner Springs, Calif. , 1913-1915. 

Matagual Creek near Warner Springs, Calif., 1912-1916. 

Carrizo Creek near Warner Springs, Calif., 1913-1916. 

Susanna Creek near Warner Springs, Calif., 1913-1916. 

Escondido Mutual Water Co.'s canal near Nellie, Calif., 1896- 

Rincon Indian Reservation ditch near Valley Center, Calif., 1912. 

Pala Indian Reservation canal at Pala, Calif., 1912-13. 

San Luis Rey ditch near San Luis Rey, Calif., I9I3. 
Temecula Creek (head of Santa Margarita River) near Temecula, ('alif , , 1906. 
Santa Ana River near Men tone, Calif., 1896- 

Southern California Edison Co.'s canal near Mentone, Calif., 1896- 

Greenspot pipe line near Mentone, Calif., 1897- 

Mill Creek in canyon at headworks of Crafton canal, Calif., 1897-1902. 

Mill Creek at Forest Home, Calif., 1903- 

Highlands canal near Mentone, Calif., 1901-1904. 

Redlands canal near Mentone, Calif., 1901-1904. 

Waterman Canyon Creek near San Bernardino, Calif., 1911-1914. 

Devil Canyon Creek near San Bernardino, Calif., 1911-1914. 

Lytle Creek at mouth of canyon near Rialto, Calif., 1894-1901. 

Lytle Creek near San Bernardino, Calif. , 1904- 

San Jacinto River near Elsinore, Calif. , 1916- 

Elsinore Lake at Elsinore, Calif., 1915- 

Temescal Creek near Elsinore, Calif., 1916- 

San Antonio Creek near Claremont, Calif. , 1917- 

San Antonio Creek near Upland, Calif., 1901-1917. 

Southern California Edison Co.'s canal near Claremont, Calif., 1917- 
San Gabriel River above Fish Fork, near Azusa, Calif., 1900-1901; 1910; 1912. (Low- 
water records.) 
San Gabriel River at headworks near Azusa, Calif., 1912-1914. 
San Gabriel River near Azusa, Calif., 1894- 

Fish Fork of San Gabriel River near Azusa, Calif., 1900-1901; 1910; 1912. (Low- 
water records. ) 

Iron Fork of San Gabriel River near Azusa, Calif., 1900-1901; 1910; 1912. (Low- 
Avater records.) 

Coldwater Creek at weir above mouth, 1900. 

West Fork of San Gabriel River above North Fork, 1900. 

West Branch of North Fork of San Gabriel River at weir, 1900. 

North Branch of North Fork of San Gabriel River at weir, 1900. 

Southern California Edison Co.'s canal near Azusa, Calif., 1896- 

Tunnel diversion near Azusa, Calif., 1917- 

Rogers Creek near Azusa, Calif., 1917- 

San Dimas Creek near San Dimas, Calif., 1916- 

Fish Creek near Duarte, Calif., 1916- 

Sawpit Creek near Monrovia, Calif., 1916- 

Monrovia pipe-line near Monrovia, Calif., 1916- 



22 SURFACE WATER OF PACIFIC SLOPE, S0UTHER:N^ CALIFORNIA. 

Los Angeles River at Los Angeles, Calif., 1896-1900. 

Pacoima Creek near San Fernando, Calif., 1916- 

Tujunga Creek near Sunland, Calif., 1916- 
Haines Creek near Tujunga, Calif. 1917- 

Arroyo Seco near Pasadena, Calif., 1910- 

Eaton Creek near Pasadena, Calif., 1918- 

Santa Anita Creek near Sierra Madre, Calif. 1916- 

Little Santa Anita Creek near Sierra Madre, Calif., 1916- 
Malibu Creek near Calabasas, Calif., 1903-1906. 

Tujunga Creek near Calabasas Calif., 1903-1906. 
Santa Clara River at Fillmore, Calif., 1911-1912. 

Piru Creek near Piru, Calif., 1911-1913. 

Sespe Creek near Sespe, Calif., 1915-1918. 

Sespe Creek at Sespe, Calif., 1911-1913. 

Santa Paula Creek near Santa Paula, Calif., 1912-1913. 
Ventura River near Nordhoff, Calif., 1911-1914. 
Ventura River near Ventura, Calif., 1911-1914. 
Gobernador Creek near Carpinteria, Calif., 1916- 
Mission Tunnel near Santa Barbara, Calif., 1912-1917. 
San Roqui near Santa Barbara, Calif., 1890. 
San Jose near Goleta, Calif., 1890. 
Loma Abajo River, Santa Barbara County, Calif., 1890. 
Gato Creek at mouth, Santa Barbara County, Calif., 1890. 
Santa Ynez River near Santa Barbara, Calif., 1903-1908; 1910- 
Santa Ynez River near Lompoc, Calif., 1906- 

Mono Creek near Santa Barbara, Calif., 1903-1904. 
Santa Maria River near Santa Maria, Calif., 1903-1905. 

TIA JUANA RIVER BASIN. 

GENEBAL FEATURES. 

Tia Juana River discharges into the Pacific Ocean below San Diego 
Bay near the Mexican boundary. Its principal tributary, Cotton- 
wood Creek, rises in the Laguna Mountains of the Coast Range, and 
flows south and west for about 20 miles, where it is joined by Pine 
Valley Creek from the north; it then flows southwestward 12 miles 
to its junction with Tia Juana River at the Mexican boundary, about 
22 miles east of the coast line. The total drainage area of Cotton- 
wood Creek above its junction with Tia Juana River is about 340 
square miles. It lies south of the Sweetwater and Otay River basins 
and is the most southerly stream in San Diego County. Pine Valley 
Creek is its only important tributary. 

The topography of the basin of Cottonwood Creek is rough through- 
out, although the basin contains some valley areas at elevations 
exceeding 3,000 feet; below this elevation the creek flows through a 
deep, narrow canyon, broken only by a short stretch of open country 
with comparatively light grade at the junction of Pine Valley Creek. 
Altitudes range from 600 feet above sea level where the creek forms 
Tia Juana River to 5,000 feet on the Laguna Mountains. 



TIA JUAN A RIVER BASIN. 23 

The Cottonwood basin is very poorly forested. The timber con- 
sists of scattered oaks, cottonwoods, and alders, which are confined 
almost entirely to the small valleys along the stream and to the higher 
elevations. The mountain slopes are fairly well covered with brush. 

The mean annual rainfall ranges from 8 to 10 inches along the 
foothills and from 20 to 30 inches in .the mountains. 

The basin affords several good reservoir sites — the Barrett reser- 
voir, at the junction of Pine Valley Creek at an elevation of 1,500 
feet; the Morena reservoir, on Cottonwood Creek, at the lower end 
of Morena Valley, 8 miles above the Barrett reservoir; and Pine 
Valley reservoir, on Pine Valley Creek, at the west end of Pine Valley. 
The Morena and Pine Valley reservoirs are at an elevation of 3,100 
feet. All these sites have been surveyed. The Morena dam has 
been constructed, and considerable preliminary work has been done at 
the Barrett dam, including the building of a low concrete dam to a 
height of about 20 feet above the bed of the stream. A conduit has 
been constructed to divert water from Cottonwood and Pine Valley 
creeks above the Barrett dam to the lower Otay reservoir in the 
Otay River basin. This conduit has a capacity of about 60 second- 
feet and will divert all the water from these creeks when their 
combined discharge does not exceed that amount. The city of San 
Diego receives its water supply from the lower Otay reservoir. 

GAGING-STATION RECORDS. 

TIA JTJANA RIVER NEAR NESTOR, CALIF. 

Location. — At highway bridge on line between sees. 3 and 4, T. 19 S., R 2 W., 3 
miles above mouth of river, and 1| miles south of Nestor, San Diego County. 

Drainage area. — Not measured. 

Elevation. — About 25 feet above sea level. 

Becords available. — ^January 29 to September 30, 1915, when station was discon- 
tinued. 

Gage. — Gage heights were observed twice a day by measuring from top of bed plate 
of east truss of bridge to the winter surface. These readings have been reduced 
to elevations above sea level, United States Geological Survey datum. 

Discharge measurements. — Made from bridge or by wading. On account of angle 
which bridge makes with current all measiu-ements made from bridge have been 
corrected by the coefficient 0.866. 

Channel and control. — Composed of sand ; shifting. 

Diversions. — Dulzura conduit diverts from Cottonwood Creek about 12-| miles above 
its junction with Tia Juana River. There are no other large diversions above 
the station. Water is pumped for irrigation from wells in the valley above the 
station. 

Regulation. — The only storage developed in this drainage basin is at Morena reser- 
voir (capacity, 46,000 acre-feet), on Cottonwood Creek, about 19 miles above its 
mouth. 

Accuracy. — Results are reported as good. 

Cooperation. — Complete record furnished by C. H. Lee, consulting engineer, Los 
Angeles. 



24 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Discharge measurements of Tia Juana River near Nestor, Calif., during the year ending 

Sept. 30,1915. 



Date. 


Made by- 


Gage 
height.a 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height.o 


Dis- 
charge. 


Jan. 29b 


K. B. Sleppy 


Feet. 
23.30 
22.80 
22.17 
25.60 
23.05 
23.06 


Sec.-ft. 
524 
548 
84 
2,700 
880 
506 


Mar. 3b 
27 

Apr. 6 
10 

May 1 

June 7 


D. L. Lee 


Feet. 
23.70 
22.41 
22.34 
22.28 
23.02 
2L86 


Sec.-ft. 
1,400 


Feb. bh 


D.L.Lee 


K. B. Sleppy 


62 


9& 


K.B. Sleppy 


do 

D.L.Lee... 


47 


lie 


D. L. Lee 


32 


14& 
23b 


do 

.....do 


do 

do 


170 
1 



a Gage heights are elevations above sea level, U. S. Geological Survey datum. 

b Made from bridge; angle of current 30°; correction coefficient applied, 0.866, and flow of north channel 
added, 
c Float measurement. 

Daily discharge, in second-feet, of Tia Juana River near Nestor, Calif., for the year ending 

Sept. SO, 1915. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


■ 
May. 


June. 


1 




202 

620 

1,800 

1,245 

770 

306 
233 
131 
95 
168 

3,061 
1,921 
1,608 
1,313 
1,032 


893 

2,361 
1,909 
1,539 
1,506 

1,324 
1,175 
1,026 
952 
1,026 

1,059 
909 
860 
721 
613 


48 
48 
40 
40 
39 

39 
39 
32 
26 
30 

25 
25 
24 
23 
22 


201 
638 
852 
934 
1,157 

1,414 

1,216 

975 

957 
834 

424 
363 
242 
340 
267 


18 
18 
14 
14 
10 

2 
2 


16 




918 
655 
627 
^88 
455 

1,147 
975 

728 
567 
713 

877 
770 
729 


381 
332 
283 
217 
160 

154 
119 
92 
92 
72 

58 
58 
58 
58 
58 
50 


29 
31 
18 
13 
11 

9 
10 
21 
23 

28 

25 
15 
10 
12 
27 


185 
114 
102 
201 
160 

108 
72 
61 
45 
61 

39 
31 




2 


17 






3 




18 






3 




19 






5 




20 






6 




21 






7 . 




22 ... 






8 




23 






9 




24 






10 




25 






11 




26 






12 




27 




... 


13 




28 




25 


14 




29 . . 


530 

2,743 

806 


23 
23 

18 




15 




30 








31 











Note.— No flow Oct. 1 to Jan. 28 and June 8 to Sept. 30. 

COTTONWOOD CREEK NEAR DTTLZURA,! CALIF. 

Location. -^At Barrett dam, 1* miles below intake of Dulzura conduit, in SW. \ sec. 
15, T. 17 S., R. 3 E., about 7 miles northeast of Dulzura, San Diego County. 
Lyons Creek enters half a mile and Pine Valley Creek 1 mile above the station. 

Drainage area. — 246 square miles (measured on topographic maps). 

Elevation. — About 1,500 feet above sea level. 

Records available. — January 1, 190G, to December 31, 1915. 

Gage. — Several gages at independent datums have been installed. Two vertical 
staff gages used 1909-1915. Upper gage is fastened to upstream face of the dam 
on left bank; reads depth of water over crest; the lower gage, which is fastened 
to upstream face oi dam between flume and right bank, is read when no water is 
flowing over crest of dam; its datum is 2.50 feet lower than that of the upper gage. 

Discharge measurements. — Made at low concrete dam back of which sand and 
gravel have been deposited to the level of its crest. At low stages the flow is 
restricted to a rectangular wooden flume through the wall of the dam, but at 
high stages the flow is over the entire length of the crest, which is 61 feet. Meas- 
urements have been made by wading, except at high stages, when only float 
measurements have been made. (See PL XVIII, B, p. 493.) 

Channel and control. — Bed above and below dam consists principally of sand; 
shifting. The dam acts as control for the station. 

1 Described as "near Jamul" in early water-supply papers. 



TIA JUANA RIVEK BASIN. 



25 



Extremes of discharge. — 1906-1915: Maximum m^an daily discharge, 5,800 sec- 
ond-feet, March 24, 1906; channel usually dry several months each year. 

Diversions. — Dulzura conduit diverts ^yater from Cottonwood and Pine Valley 
creeks, half a mile above their junction, into Dulzura Creek drainage basin. 
See record of Dulzura conduit near Dulzura, Calif. 

Regulation. — ^Morena reservoir on Cottonwood Creek, about 8 miles above Barrett 
dam, has a capacity of 46,000 acre-feet. Water stored in this reservoir is released 
•when needed for Dulzura conduit. 

AccuRACY.^ — Discharge measurements have been made by the United States Geo- 
logical Survey and rating curves developed for both gages. On account of the 
few measurements made in recent years, records since 1910 are not considered so 
reliable as those for earlier years. ^ 

Cooperation. — Records 1909-1911 furnished by Southern California Mountain Water 
Co., through M. M. O'Shaughnessy, chief engineer. Since the city of San Diego 
took over the system of the Southern California Mountain Water Co. in 1912, the 
records have been published as submitted through the department of water, 
except that determinations of daily discharges have been converted from million 
gallons per day to second-feet, and monthly discharge has been computed by the 
United States Geological Survey. Later records are withheld by city of San 
Diego on account of pending litigation. 

Discharge measurements of Cottonwood Creek near Dulzura, Calif ., for 1905-1915. 



Date. 


Made by— 


Gage 
height. 


Dis«. 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


1905. 




Feet. 


Sec.-ft. 


1907. 




Feet. 


Sec.-ft. 


Nov. 18 


W. "b. Clapp 




0.5 
1.1 


May 19 
29 


W.V.Hardy. 




0.37 
.41 


34 


Dec. 14 ( 


3.H.Lee„. 


0.05 


Hardy and Hall 


46 










June 11 


Clapp and Hardy 

N.L Hall.. 


1 .28 


22 


1906. 


W. V. Hardy 


.10 


3.5 


16 
20 




21 


Jan. 6 


do 


1.08 


19 


19 . 


...do 

...do 


.21 
.30 


12.4 
32 


27 
Dec. 6 


W. V. Hardy. 




.89 

.72 


14 


19 . 


do 




11 


20 . 


...do 


.40 


39 










20 . 


...do 


.50 


63 


1908. 








20 . 


...do 


.55 


76 


Jan. 17 


do 


.81 


14 


Feb. 3 . 


...do 


.05 


4.1 


27 


do 






1.95 


52 


14 . 


...do 


.23 


15.5 


Feb. 14 


do 






2.30 


62 


Mar. 11 . 


...do 


.12 


13.2 


23 


do 






1.97 


43 


12 . 


...do 


1.21 


383 


Mar. 12 


do 






1.53 


31 


13 . 


oe Hooker... 


2.20 

.82 


644 
150 


21 
Apr. 5 


do 

do 






i:i2 

.91 


20 


16 . 


...do 


17 


21 . 


...do 


.58 


90 


May 12 


do 






.73 


11 


24 . 


...do 


6.00 


5,330 


Nov. 18 


do 








1.6 


25 . 


...do 


6.50 


4,100 


Dec. 22 


do 








4.3 


31 . 


...do 


1.10 


416 










Apr. 7 . 


...do 


.81 


239 


1909. 








19 


V. V. Hardy. 


.59 
.40 


116 

76 


Feb. 24 
Apr. 21 


do 

Clapp and Hardv 


2.55 
.55 


90 


May 8 1. 


-.-do 


7.8 


JuBe 22 ! 1 


2. H.Lee 


.28 


14.2 
1.0 
32 
40 


May 27 

1910. 
Jan. 24 


W. V. Hardy 






.5 


Oct. 5 ! 


^V. F. Martin... 






.50 




Nov. 27 


VV. V. Hardy 


.90 
2.00 


do 




Dec. 15 . 


...do 


5.7 










Mar. 13 


do 


.31 


2.2 


1907. j 








June 5 


do 


.10 


.4 


Jan. 5 i. 


...do 


2.25 


56 










15 i. 


...do 


.60 


171 










Feb. 7 1. 


...do 


.38 


50 


1913. 








26 - 


...do 


.48 


59 


Apr. 16 


H. D. McGlashan 


.23 


2.3 


Mar. 8 ;. 


...do 


.80 


191 










20 '. 


...do 


.60 


89 


1915. 








Apr. 12 L 


...do 

...do 


.64 
.51 


105 

72 


Apr. 5 
Sept. 23 


F. C. Ebert 


.30 
.30 


4.0 


27 {. 


do 


1.0 


28 . 


...do 


.50 


68 











Note.— Thedischargemeasurementsare referred taseveral gages at independent datum planes. Forthe 
measurements beginning with 1909 two gages were used, one being read at low stages, when the water 
flows through a 6-foot flume in the dam, and the other when the water flows over the crest of the dam. 
Some measurements were made with the 6-foot flume open and others with the flume closed. The difference 
in datum between the gages is 2.5 feet. 



26 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORISTIA. 

Daily discharge, in second-feet, of Cottonwood Creeh near- Dulzura, Calif., for 1907-1915, 



Apr. 



May. 



July. 



130 
110 
92 
92 



221 
121 
98 
150 
112 

121 
105 
-1,170 
390 
221 

192 
178 
139 
108 
121 



95 
250 
121 



54 
54 



54 

47 



105 
116 

76 
56 



87 
87 



61 

79 
54 



155 

185 



134 
134 
134 
162 
162 



244 
178 
178 
221 
285 

516 
313 

264 



178 
145 
306 
221 
192 

169 
134 
121 
95 
121 

108 
105 
95 
95 



87 
82 
71 

71 
71 

76 
82 



49 
54 
52 

47 
40 



34 
30 



32 
30 



40 
29 
20 
36 



8.1 
7.2 

6.2 
6.0 

8.7 

4.4 
4.1 
3.6 
3.1 
3.8 

4.8 
4.2 
4.4 
5.7 
4.2 

3.6 
3.6 
3.6 
3.4 
2.9 

2.9 
2.9 
2.2 
2.2 
2.2 

2.9 
3.6 
4.4 
3.6 
3.4 
2.9 



2.2 
2.2 
2.2 
3.1 
3.7 

4.6 
5.9 
4.0 
4.3 
4.0 

4.0 
3.5 
3.5 
5.4 



9.8 
13 
13 
10 



8.2 
9.4 



8.6 
10 
9.( 
8.8 
8.2 

7.2 
7.8 
7.4 
8.0 
10 

10 

7.6 
7.4 
7.0 
9.2 



9.2 
8.0 



7.6 
7.8 
7.0 



7.6 
8.0 

7.6 
7.8 
8.2 

9.2 
9.2 

12 

10 

10 

11 
11 
10 



10 
10 



10 
10 



9.4 
10 
9.2 



10 
9.6 
9.6 



19 
22 

14 
13 
12 



12 
12 
17 



130 

155 
62 

56 
56 
37 
63 
112 



79 
43 



43 
43 



35 
31 
34 
34 



37 
40 
44 

74 



42 
34 



32 
30 
25 



23 
15 
17 
22 

31 

42 
37 
18 
18 
20 



20 
20 
17 
17 

17 
15 
15 



10 
12 



10 
24 
31 



17 
13 
12 



7.0 

7.7 



7.5 
7.7 
7.5 
7.7 
7.0 



6.3 
5.7 
5.5 
5.0 

3.7 
3.9 
2.6 
3.3 
3.1 

2.4 
2.3 
2.4 
2.4 
3.0 

2.3 
2.0 



1.7 
1.1 
1.1 



0.7 

.7 
.7 



.3 
.1 
.1 
.06 
.02 

.02 
.02 
.02 
.02 
.02 



.02 
.02 
.02 



.03 
.03 
.03 
.04 

.04 
.04 
.04 
.04 
.05 
.05 



TIA JUANA KIVER BASIN. 



27 



Daily discharge, in second-feet, of Cottonwood Creek near Dulzura, Calif., for 1907-1915 — 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1908-9. 
1 


0.32 
.32 
.32 
.33 
.33 

.33 
.34 
.34 
.34 
.35 

.35 
.35 
.35 
.37 
.39 

4.2 
5.5 
6.3 
5.2 
4.5 

4.2 
4.0 
3.7 
3.4 
3.4 

3.1 

3.8 
4.0 
4.2 
4.3 
4.5 

1.0 
1.0 
1.5 
2.0 
1.5 

1.5 
1.5 
1.0 
.5 

.5 

11 
1.0 

.5 

.5 

.5 

.5 
.5 
1.0 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
2.0 
2.0 


4.0 
3.8 
3.6 
3.6 
3.7 

3.8 
3.9 
4.0 

4.2 
4.6 

4.6 
4.6 
4.5 
4.5 
4.3 

3.9 
3.9 
3.9 
4.0 

4.2 

4.4 
4.4 
5.0 
5.0 
5.0 

5.0 
5.0 
4.5 
4.7 

4.7 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
6.0 
6.0 

8.1 
10 

9.2 
12 
18 

10 
9.2 

8.1 
8.1 
7.0 

7.0 
8.1 
8.1 
8.1 
8.1 

34 
30 
16 
12 
10 


5.0 
5.5 
8.6 
7.2 
5.7 

6.0 
6.0 
5.5 
5.0 

4.8 

5.0 

4.7 
4.7 
4.7 
5.4 

7.3 
7.3 
7.0 
7.0 

6.8 

7.0 
7.2 
6.8 
6.1 
7.2 

7.5 
6.8 
6.6 
6.1 
6.1 
6.1 

8.1 
12 
10 

8.1 
20 

15 
6.0 
6.0 

92 

30 

6.0 
4.0 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
12 

190 
18 

8.1 
10 

6.0 

6.0 
4.0 
4.0 
3.2 
3.2 
4.0 


8 
8 
8 
8 
8 

8 
8 
8 
8 
12 

10 
8 
17 
208 
56 

44 
34 
34 
20 

17 

15 

78 
464 
464 
620 

620 
132 

132 
69 
51 
36 

69 
33 
43 
23.4 

78 

45 

31.5 

27.3 

24.7 

18.3 

22.1 
23.4 
14.7 
24.7 
31.5 

190 
145 

43 

34.5 

26 

15.9 
12.5 

8.3 
6.0 

7.7 

6.0 
5.2 
5.0 
4.2 
4.4 
4.0 


27 
17 

8.1 
29 

7.0 

8.1 
8.1 
159 
69 
39 

36 
132 
208 
132 
132 

78 
62 
51 
30 
22 

226 
132 

92 

92 

69 

62 
51 

47 

4.8 
4.0 
4.2 
4.8 
4.4 

4.4 
4.4 
3.8 
3.0 
2.6 

3.3 
2.6 
2.5 
2.6 
3.0 

2.8 
2.3 
2.6 
4.4 
23.4 

12.9 
5.0 
4.0 
4.0 
4.2 

4.0 
4.0 
3.1 


43 
36 
39 
22 
20 

17 
39 
25 
22 
20 

10 
8.1 
6.0 
4.0 
4.0 

5.0 
6.0 
4.0 
4.0 
4.0 

47 
273 
159 
111 
102 

111 
473 

509 
438 
304 
273 

4.0 
3.8 
3.8 
3.8 
3.1 

3.1 
3.6 
2.5 
3.3 
3.1 

3.0 
2.5 
2.5 

2.6 
2.6 

2.6 
3.1 

4.4 
3.1 
2.6 

2.6 
2.6 
2.6 
2.6 
2.6 

8.5 
14.7 
69 
54 
36 
37.5 


132 
122 
HI 

92 

92 

78 
62 
49 
39 
36 

34 
30 
26 
22 
17 

14 
10 
8.1 

8.1 

8.1 

8.1 
8.1 
6.0 
6.0 
4.0 

4.0 
4.0 
3.2 
9.2 
9.2 

65 
54 
49 
27.3 
7.0 

4.4 
4.2 
3.6 
3.6 
3.1 

2.6 
4.0 
3.8 
2.5 
2.3 

2.5 
2.2 
2.2 
1.3 
1.3 

1.3 
1.3 
1.0 
7.0 
1.1 

1.1 

.8 
1.1 

.8 

.7 


6.0 
4.0 
4.0 
4.0 
4.0 

3.2 
2.5 
4.0 
2.5 
3.2 

3.2 
3.2 
3.2 
2.5 
2.5 

2.5 
2.5 
2.5 

2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 

2.5 
2.5 
2.5 
2.0 
2.0 

.8 
.8 
.7 
1.3 
1.2 

2.1 
2.3 
2.1 
1.0 
1.0 

1.0 
.8 
1.0 
1.0. 
1.0 

1.0 
1.0 
1.0 

.8 
1.0 

1.0 
1.0 

".7 

.5 
.5 
.4 
.5 
.4 
.3 


2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
1.5 
1.5 

1.5 
2.0 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.0 
6.0 


1.5 
1.5 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
.5 

.5 
.5 
.3 
.4 

■■■■-■ 
.3 

.3 
1.5 
1.5 

.5 


9.0 
2.5 
1.0 
1.0 
1.0 

-■■■■- 
.5 

5.0 
2.5 
2.0 
10 
4.0 

1.5 
1.0 
.5 
.5 

.5 

'""7.0' 
2.0 
.5 
17 
22 


10 


2.... 


5.0 


3 


4.0 


4 


3.0 


5 


3.0 


6 


7.0 


7 


6.0 


8 


3 


9 


2.5 


10 


1 5 


11 


1 5 


12 


1.0 


13. .. 


1 


14 


5 


15 


5 


16 


5 


17 


5 


18 


5 


19 


.5 

.5 

.5 

.5 
1 


20 


21 


22 


23 


24 


1 5 


25 


1 5 


26 


1.5 
1.5 
1.0 
1.0 
1.0 


27-. 


28 


29. 


30 


31 


1909-10. 
1 


.4 
.5 
.5 
.5 

.4 

.3 
.4 
.3 
.2 
.2 

.2 
.2 
.2 
.2 
1.0 

1.0 
1.0 
.5 

.4 
.3 

.1 
.3 
.2 
2 
.2 

.2 
.1 
.1 
.1 
.1 


.1 
.1 
.1 




2 






3 






4 






5 








6 








7 








8 








9 








10 








11 








12 








13 








14 








15 








16 









17 








18 








19 








20 








21 








22 








23 








24 








25 








26 








27 








28 








29 








30 








31 









28 SURFACE WATER OF PACIFIC SLOPE, SOUTHERI^ CALIFORNIA. 

Daily discharge, in second-feet, of Cottonwood Creek near Didzura. Calf ..for 1907-19 15- 

Contimied. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


Jnly. 


Aug. 


Sept. 


1910-11. 
1 




1.3 
1.8 
3.1 
5.0 
3.1 

2.2 
2.2 
2.2 
2.2 
1.8 

1.8 
2.2 
3.1 

7.7 
4.8 

3.6 
2.6 
2.3 
3.8 
2.5 

3.3 
2.3 
2.2 
2.2 
2.2 

2.6 
2.3 
2.3 
2.3 
2.5 


2.2 
2.2 
2.1 
2.1 
2.5 

2.5 
2.2 
2.2 
2.2 
2.2 

2.1 

1.8 
1.8 
2.2 
1.8 

1.8 
2.1 
2.1 
2.2 
3.1 

2.3 
2.3 
2.2 
2.2 
2.1 

2.6 
1.8 
2.1 
1.7 
1.7 
2.5 

0.1 

.1 
.1 
.1 
.6 

.6 
.6 
.6 
.6 
.9 

.9 
.9 
.9 
.9 
' .9 

.9 

1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 
1.5 


3.4 
3.4 
3.4 
2.6 
2.6 

2.6 
2.0 
2.0 
2.6 
11 

8.6 
3.1 
3.1 
2.8 
3.1 

2.6 
2.5 
2.5 
2.3 
2.3 

2.3 
2.3 
2.3 
2.3 
2.3 

2.3 
2.3 
2.3 
2.6 
2.6 
3.7 

2.0 

1.8 
1.8 
1.7 
1.7 

1.7 
1.7 
1.5 
1.7 
1.7 

2.0 
2.0 
1.7 
1.7 
2.0 

2.2 
2.4 
3.0 
4.2 
3.0 

2.0 

1.8 
1.5 
1.7 
1.5 

1.7 
1.7 
1.7 
1.5 
1.5 
1.5 


3.7 
2.6 
3.7 
2.8 
35 

3.7 
3.7 
3.7 
4.6 
4.6 

3.7 
3.4 
3.1 
22 
5.9 

3.7 
3.6 
3.1 
2.3 
3.1 

2.5 
2.0 
2.0 
2.0 
1.9 

1.5 
2.3 
2.6 

1.3 
1.5 
1.3 
1.5 
1.3 

1.3 
1.3 
1.3 
1.3 
1.3 

1.3 
1.3 
1.3 
1.5 
1.5 

1.5 
1.3 
1.3 
1.3 
1.2 

1.3 
1.3 
1.3 
1.3 
1.3 

1.2 
1.2 
1.2 
1.0 


2.2 
2.2 
3.7 
13 
7.2 

2.4 
2.0 
2.0 
2.0 
3.0 

5.4 
2.3 
2.0 
2.0 

1.5 

1.5 
1.4 
1.1 
1.1 
1.1 

1.4 
1.4 
1.4 
1.1 
1.1 

1.1 
1.1 
1.1 
1.1 
1.1 
1.1 

2.0 
1.5 
1.5 
1.5 
1.5 

2.4 
1.7 
1.7 
2.7 
221 

11.6 
5.0 

39.2 
8.6 
4.2 

3.0 
2.0 

1.8 
1.7 
1.8 

1.8 
2.2 
1.7 
1.7 
1.7 

2.0 
2.0 
2.0 
2.0 
26.5 
5.2 


1.1 
1.5 
1.4 
1.4 
1.4 

1.4 
1.5 
1.4 
1.5 
1.4 

1.1 
1.1 
1.1 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.1 
1.0 
1.1 
1.0 

1.1 

1.5 
1.5 
1.5 
1.0 
1.0 

3.0 
2.0 
2.0 
2.0 
2.0 

2.0 

1.8 
1.7 
2.0 
2.0 

32.9 
113 
73.0 
54.0 
48.0 

40.0 
25.0 
16.0 
10.1 

4.2 

3.0 
2.7 
2.5 
2.0 
1.7 

1.7 
2.0 
2.0 
2.0 
1.7 


1.0 
1.1 
1.0 
1.1 
1.0 

1.0 
1.0 

.8 
.8 
.8 

.8 
.8 
.8 
1.5 
1.0 

1.1 

.8 
.8 
.7 

.7 

1.3 
1.3 
1.3 
1.0 

.8 

1.0 

L3 
1.0 
1.0 
1.0 

1.7 
1.7 
1.5 
1.5 
1.5 

1.5 
1.7 
2.4 
3.8 
2.4 

1.8 
1.7 
1.5 
1.3 
1.3 

1.3 
1.3 
.9 
.9 
.7 

!9 
.9 
.9 
.9 

.9 
.9 

.7 
.6 
.6 
.5 


1.7 

1^7 
1.4 
1.3 

1.2 

.7 
.5 






2 






- . 1 .. 


3 






1 


4 






i 


5 






i 


6 






1 


7 






1 


8 








9 






j 


10 




.4 

'.2 
.2 
.2 

.2 

.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 

.2 

.2 
.1 
.0 
.0 
.0 






11 






1 


12 








13 








14 








15 








16 






1 


17. 






1 


18 






"" ! 


19 


0.1 

.2 

.3 
.2 
.5 
.5 
.4 

.5 
.5 
.8 
1.0 
1.1 
1.2 






20 






21 




1 


22 






23 






24.. .... .. 






25 






26 






27 






28 






29 






30 






31.. 






1911-12. 
1... 


"1 

.5 

.4 

.4 
.5 

is 

.5 
.5 


0.4 
.9 

1.5 
1.3 
.4 

.3 

\h 
.1 




2 








3 . . 








4 








5 








6 








7 








8 








9 








10 








11 '. 








' 


12 






.5 
.5 

:^ 

.4 
.4 
.3 
.3 

.4 

.4 
.3 






13 










14 










15 . . 










16 










17- 










18 










19 


i 






20 


1 






21 








22 


"■ ' 






23 




.9 

.7 






24 


1 






25 








26 






j 


27 






.5 




28 






.3 
.5 
.3 




29 








30 






i 


31 


:::::::::;:::: 


i I-. 



TIA JUANA RIVER BASIN. 



29 



Daily discharge, in second-feet, 



of Cottonwood CreeJcnear Dulzura, Calif., for 1907-1915- 
Continued. 



I>ay. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1912-13. 
1 




0.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.2 

.3 
.3 
.3 

.4 
.5 

.9 
.9 
.9 
.9 
1.0 

.9 
.9 
.9 

.7 


1.0 
1.0 
.9 

.7 
.9 

.9 
1.0 

.9 
1.0 
1.2 

1.2 
1.3 
1.3 
1.2 
1.2 

1.2 
1.3 
1.3 
1.3 
1.3 

1.3 
1.3 
1.3 
1.3 
1.3 

1.3 
1.3 
1.3 
1.3 
1.3 
1.3 

2.0 
2.0 
1.7 
1.7 

1.8 

1.8 
1.7 
1.7 
1.6 
1.6 

1.6 
1.7 
1.7 

1.8 
1.8 

1.8 
1.8 
1.4 
1.1 
1.1 

1.2 
1.4 
1.6 
1.4 
1.4 

1.4 
1.4 
1.2 
1.2 
1.2 
1.2 


1.3 
1.3 
1.3 
1.3 
1.3 

1.3 
1.3 
1.3 
1.7 
1.7 

1.7 
1.5 
1.5 
1.3 
1.8 

2.4 
2.4 
1.7 
1.5 
1.5 

1.5 
1.7 
1.5 
1.5 

1.5 

1.5 
1.5 
1.2 
1.2 
1.0 
1.0 

1.2 
1.2 
2.0 
1.4 
1.1 

1.1 
1.1 
1.1 
1.1 

1.1 

1.1 
1.1 
1.1 
1.1 
1.1 

1.7 
1.7 
2.0 
2.0 
1.7 

1.7 
1.4 
1.4 
1.4 
1.4 

2.4 
6.3 
52 
3.4 
2.0 
2.0 


1.0 
1.0 
1.0 
1.0 

1.4 

1.4 
1.4 
1.5 
1.4 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 

1.4 
1.8 

2.2 

29 
3.4 
2.0 

10 

2.5 
6.6 
2.5 

2.0 
2.0 
2.0 
1.7 
1.7 

1.7 
1.7 
1.7 
1.7 
1.4 

1.4 
1.4 
1.4 
1.4 
1.4 

1.4 
1.5 
1.5 

13 

19 

429 

202 
30 
6.8 
3.4 

2.6 
2.3 
2.0 


2.9 
2.0 
1.7 
1.5 
1.5 

1.5 
1.5 
1.4 
1.4 
1.4 

1.5 
1.8 
1.5 
1.4 
1.4 

1.4 
1.2 
1.4 
1.4 
1.5 

1.5 
1.5 

3! 2 
1.7 

1.5 
1.4 
1.4 
1.4 

1.8 
6.3 

2.0 
2.0 
1.7 
1.7 

1.5 

1.4 
1.4 
1.4 
1.4 
1.4 

1.4 
1.4 
1.4 
1.4 
1.4 

1.4 
1.1 
1.1 
1.1 
1.1 

1.1 
1.1 
1.1 
1.1 
1.1 

1.6 
1.4 
1.1 
1.1 
1.1 
1.1 


8.5 
6.6 
4.3 
2.5 
2.4 

2.2 
2 4 
2 2 
2 2 
2 2 

2 4 
2 4 
2 5 
2 7 
2 7 

2.7 
2.5 
2.5 
2.4 
2.4 

2.0 
2 
2.0 

1.8 
1.8 

1.8 
1.8 
2.0 
2.0 
2.0 

1.1 
1.1 
1.1 
1.1 
1.1 

1.1 
1.1 
1.1 
1.1 
1.1 

1.1 
1.1 
1.0 
1.0 
1.0 

1.0 
1.0 

.8 

'.6 

.6 
.7 
1.2 
1.2 
1.1 

1.1 
1.0 
1.0 
1.4 
1.7 


2 
2.0 
2 

1.8 
1.8 

1.8 
1.5 
1.4 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.0 

1.0 
1.0 
1.0 
.9 

.7 

.6 
.6 
.6 
.4 
.4 

.4 
.4 
.6 
.4 
.4 
.4 

1.7 
1.7 
1.4 
1.2 
1.1 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 

.8 

I'.l 
1.1 


0.6 
.6 
.6 
.6 
.6 

.6 
.6 
.5 
.5 






2 




1 




3 . ... 








4 




! 




5 




1 




6 




I 




7 . . - 








g 








9 








10 




.5 

.5 


1 




11 . . 










12 




.5 
.4 
.4 
.4 

i 

.3 
.3 
.2 

.2 
.2 
.2 
.2 
.2 

.0 
.0 
.0 
.0 
.0 








13 










14 


. 








15 










16 










17 










18 










19 . ... 










20 










21 










22 










23 










24 










25 










26 




1.0 








27 




1.2 
1.3 
1.0 
1.2 








28 










29 










30 










31 . .. 










1913-14. 
1 






1.1 
1.1 
1.0 

.7 
.7 

.7 
.7 
2 
2 
2.0 

1.4 
.7 
.6 








2 


1 








3 










4 
























6 . .-- 
























s 












9 












10 












11 












12 












13 












14 










15 




.4 

.2 
.2 
.2 
.2 

.4 

.3 
.3 
.3 
• .2 
.2 

.1 








16 










17 










18 










19 




1.6 
1.7 
1.2 
1.1 
1.1 

1.1 
1.2 
1.2 
1.2 
1.5 








20 










21 










22 










23 










24.. 










25 










26 










27 










28 












29 












30 






[ 




31 






1 





30 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Cottonwood Creel near Dulzura, Calif., for 1907-1915- 

Continued. 



Day. 



Apr. 



May. 



Jtay. 



Aug. 



Sept. 



7.. 
8.. 
9.. 
10.. 

11.. 
12.. 
13.. 



16.. 
17.. 
18.. 
19.. 
20.. 



0.35 
.35 
.35 
.35 

.35 
.35 
.35 
.35 
.35 

.35 
1.20 
.70 

.56 
.56 

.56 
1.30 
1.70 
1.30 
1.30 

.70 
.70 
.70 
.70 
.70 

.70 
.70 
.70 
.70 
.70 
.70 



0.70 
.70 
.70 
.70 
.70 

.70 
.70 
.70 
.70 
.70 

.70 
.70 
.70 
.70 
.70 

.70 
.70 
.70 
.70 
.70 

.70 
1.30 
.70 
.70 
.70 

.70 
.70 
1.00 



12.2 
74 
100 
29 
9.4 

3.7 
2.0 
1.2 
.43 

81 



190 
112 

83 
65 

42 

43 

20 

18.2 

43 

60 
68 
44' 
22 
32 



14.3 
10.2 



82 
115 



19.6 
13.8 
10.9 

8.9 

7.8 
6.7 
5.1 
5.3 



3.1 
2.9 
2.9 

2.9 
3.3 
3.2 
3.4 
4.4 
5.4 



4.3 
4.3 
7.0 
9.8 

5.7 

6.2 
5.3 
5.4 

4.7 



5.1 
11.2 



5.4 
5.1 
5.4 

7.5 



104 
257 

176 
130 
118 
102 
495 



25 
45 
33 
22 

14.7 
10.5 
27 
22 
7.1 

5.9 
5.1 

4.8 
4.7 
4.5 
4.3 



4.9 
6.6 
4.7 
4.1 
3.8 

3.6 
3.5 
3.4 
3.3 
3.3 

3.3 
3.3 
3.2 
3.2 
3.0 

2.9 
2.9 
3.0 
2.8 
2.9 



2.5 
2.5 
2.5 
2.5 

2.3 
2.2 
2.2 
2.2 
2.3 

2.3 
2.2 
2.2 
2.1 
2.1 

2.2 
2.1 
2.1 
2.1 
1.9 

1.9 
2.0 
2.0 
2.0 
2.5 

' 2.5 
2.5 
2.4 
2.5 
2.7 
2.7 



2.5 
2.4 
2.2 
2.3 
2.2 

2.0 
2.0 



1.7 
1.6 
1.9 
3.7 
3.7 

3.7 
3.7 
3.7 
3.7 
3.7 

3.7 
3.7 
3.7 
3.7 
3.7 

3.7 
3.7 
3.7 
3.7 
3.7 
3.7 



3.7 
3.7 
3.7 
3.7 
3.7 

3.7 

3.7 
3.7 
3.7 
3.7 

3.7 
3.7 
3.7 
3.7 
3.7 

3.7 
3.7 
3.7 
3.6 
3.4 

3.3 

2.8 
2.7 
3.0 
3.6 



4.4 
4.2 
4.0 
3.9 



Oct. 


Nov. 


Dec. 


3.9 


3.4 


6.3 


3.6 


3.4 


6.4 


3.6 


3.4 


6.8 


4.0 


3.7 


11.1 


3.4 


3.7 


12.6 


3.3 


3.7 


9.8 


3.4 


3.6 


8.3 


3.1 


3.6 


7.6 


3 


3.4 


7.0 


3.1 


4.5 


6.6 



Day. 


Oct. 


Nov. 


Dec. 


1915. 
11 


3.4 
3.6 
4.2 
4.2 
4.2 

4.4 
4.0 
4.5 
3.9 
3.6 


4.0 
3.6 
3.4 
3.4 

3.4 

5.7 
7.3 
7.1 
6.8 
6.4 


6.7 
6.7 
6.7 
11.8 
19.3 

9.6 
9.6 
10.1 
10.1 
10.1 


12 


13.. 


14 


15 


16 


17 


18.. 


19 


20 





Day. 


Oct. 


Nov. 


1915. 
21 


3.7 
3.7 
3.9 

4.4 
4.7 

4.7 
4.5 
3.9 
3.0 
3.1 
3.4 


6.5 
6.6 
6.7 

6.8 
6.8 

6.8 
7.3 
7.1 
6.9 
6.9 


22 


23.. 


24 


25 


26 


27 


28.. 


29 


30 


31.. 





7.5 
5.7 

4.8 

4.5 
3.5 
3.5 
4.5 
7.5 
10.5 



Note.— Daily discharge computed from a rating curve well defined below 55 second-feet. Stream dry 
on all days for which discharge is not given. 



TIA JUAliTA RIVER BASIN. 31 

Monthly discharge of Cottonwood Creek near Dulzura, Calif., for 1906-1915. 



Month. 


Discharge in second- 
feet. 


Run-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Run-off 
(totalin 


Maxi- 
mum. 


Mini- 
mmri- 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1906. 
January 


59 
100 
5,800 
350 
93 
55 
93 
51 
4.8 


2.0 
7.0 
5.0 
93 
20 
20 
2.0 
.9 
.8 


15.5 
24.1 
594 
176 
54.9 
30.5 
12.0 
6.0 
1.3 


953 

1,340 

36,500 

10,500 

3,380 

1,820 

738 

369 

77 


1910-11. 
October 


1.2 
7.7 
3.1 

11 

35 

13 
1.5 
1.5 
1.7 


0.0 
1.3 
1.7 
2.0 
1.5 
1.1 
1.0 
.7 
.0 


0.24 
2.78 
2.16 
3.09 
4.96 
2.33 
1.20 
.98 
.49 


15 


February 

March 


November 

December 

January 


165 
133 


April 


190 


May 


February 

March 


275 




143 


July 


April 


71 




May 


60 


September 




29 


The year . . 

1911-12. 

November 

December 

January 




The period 








55,700 


35 


.0 


1.49 


1,080 










1906-7. 
October 


7.1 
33 
375 
1,170 
116 
648 
306 
66 
49 
8.7 
2.5 
2 


.9 
7.6 
30 
46 
36 
44 
64 
28 
9 

2.2 
.1 
.3 


3.0 
20.4 
80.8 
175 
66.9 
191 
111 
44.4 
23.2 
4.2 
1.2 
1.0 


184 

1,210 

4,970 

10, 800 

3,720 

11, 700 

4,600 

2,730 

1,380 

258 

74 

60 


.0 
1.5 
4.2 
1.5 
221 
113 
3.8 
.9 
1.5 


.0 

.1 

1.5 
1.0 
1.5 
1.7 
.5 
.3 
.0 


.00 
1.04 
1.92 
1.31 
11.8 
15.2 
1.32 
.46 
.19 




November 

December 

January 


.0 
64.0 
118 


February 

March 


February 

March 


75.4 
726 


April 


April 


910 


May 


May 


81.2 


June 


June 


27.4 


July . . 


July 


11.7 




The year . . 

1912-13. 

November 

December 

January 




September 


221 


.0 


2.77 


2,010 


The year 


1,170 


.1 


60.2 


41,700 


1.3 
1.3 
2.4 
29 
6.3 
8.5 
2.0 
.6 


.0 
.7 
1.0 
1.0 
1.2 
1.8 
.4 
.0 
.0 


.91 
1.52 
1.49 
2.98 
1.76 
2.66 
1.04 

.34 
1.70 




1907-8. 
October 


16 

12 

12 

96 
155 

74 

31 

20 
6.6 
.70 
.50 
.32 


2.2 
7.0 
7.6 
10 
28 
15 
10 
6.4 
.50 
.02 
.05 
.07 


7.5 
8.9 
9.8 
25.2 
58.4 
34.0 
15.6 
9.51 
3.49 
.145 
.085 
.214 


461 

530 

603 

1,550 

3,360 

2,090 

928 

585 

208 

9 

5 

13 


54 
93 


November 


92 


December 

January 


February 

March 


166 
108 


February 


April 


158 


March 


May 


64 


April. 




20 


May 


September 


101 




The year . . 

1913-14. 

November 

December 

January 






July 


29 


.0 


1.18 


856 


August 




September 


1.7 
2.0 
52 
429 
2.0 
1.7 
1.7 
2.0 


.0 
1.1 
1.1 
1.4 
1.1 

.6 

!o 


.51 
1.55 
3.30 
26.4 
1.34 
1.04 
.96 
.61 




The year 


155 


.02 


14.4 


10,300 


30 
95 
203 


1908-9. 


6.3 
5.0 
8.6 

620 

226 

510 

132 
6.0 
6.0 
1.5 
22 
10 


.32 
3.6 
4.7 
8.0 
7.0 
4.0 
3.0 
2.0 
1.0 

.0 

.0 

.5 


2.37 

4.31 

6.22 

104 

72.4 

101 

35.0 

2.90 

1.78 

.70 

2.95 

2.10 

27.8 


146 

256 

382 

6,400 

4,020 

6,210 

2,080 

178 

106 

43 

181 

125 

20, 100 


October 


February 

March 


1,470 

82 


November 


December 


April . 


62 


January 


Mav 


59 


February 


June .. 


36 




The year.. 

1914-15. 

December 

January 




April 


429 


.0 


2.81 


2,040 


May. 


June 


1.7 

169 

448 

115 
65 

257 
6.6 
2.7 
3.7 
4.4 


.00 
.70 
.43 

2.9 

4.3 

4.3 

2.5 

1.9 

1.6 

2.7 


.657 

11.9 

59.0 

26.5 
7.78 

58.1 
3.30 
2.28 
3.00 
3.66 




July 




August 


40 


September 


732 




February 

March 




The year 


620 


.0 


1 630 






'463 

3,570 

19G 


1909-10. 


11 
34 
190 
190 
23.4 
69 
65 
2.3 
1.0 
.1 


.5 
2.5 
2.5 
4.0 
2.3 
2.5 
.7 
.3 
.1 
.0 


1.55 
9.07 
16.2 
33.1 
4.68 
9.57 
8.74 
.95 
.34 
.01 


95 
540 
996 
2,040 
260 
588 
520 
58 
20 
1 


May.."!.'.'.'.'.'.".".'".' 


October 




November 


July 


140 


December 


August . 


184 


January 


September 

The year.. 

1915. 
October 


218 


February.... 

March 


448 


.00 


14.4 


10,500 


April 


May 


4.7 
7.3 
19.3 


3.0 
3.4 
3.5 


3.79 
5.20 
8.20 




June 




July 


233 




November 

December 




The year.. 


190 


.0 


7.07 


5,120 


504 



Note.— No flow in mohths for which discharge is not given. Records therefore represent full years. 



32 SUEFACE WATER OF PACIFIC SLOPE, S0UTHEE:N^ CALIFORNIA. 



Combined daily discharge, in second-feet, of Cottonwood Creek and Duhura conduit near 
Dalzura, Calif ,forl909-19 15. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1909. 
1 


10 
10 
10 
10 
10 

10 
10 
10 
10 
16 

13 
10 
24 
254 
83 

66 
51 
64 
29 
24 

21 

78 
464 
464 
620 

637 
147 
157 
90 

78 
64 


50 
40 
36 
71 
44 

40 
40 
198 
113 

83 

80 
174 
247 
169 
174 

118 
102 
93 
79 
71 

275 
171 
135 
142 
118 

112 
101 
97 


93 

84 
81 
77 
70 

67 
90 
75 
72 
67 

62 

58 
51 

49 

48 

49 
50 
48 
52 
47 

47 
280 
178 
162 
152 

163 
522 
562 

488 
357 
327 


186 
175 
167 
148 

148 

134 
120 
101 
91 
92 

90 

86 

82 
78 
73 

69 
64 
64 
64 
64 

64 
64 
56 
54 
52 

48 
46 
45 
57 
43 


38 
40 
36 
34 
34 

31 
31 
34 
29 

28 

30 
28 
31 
31 
27 

27 
26 
26 
26 
24 

24 
24 
24 
24 
24 

21 
21 
19 
19 
19 
17 


14 
12 
11 
12 
11 

12 
12 
12 
12 
12 

10 
12 
10 

.8.8 
8.8 

8.8 
8.8 
7.4 
8.8 
10.0 

8.8 
7.4 
7.4 
4.7 
4.7 

4.7 
3.6 
3.6 
3.1 

8.1 


2.2 
2.6 
1.6 
1.6 
1.4 

1.4 
1.4 
1.6 
1.2 
1.2 

1.0 
1.0 
1.0 
1.0 
.5 

.5 
.5 
.3 
.4 

.3' 

.3 

.3 
1.5 
1.5 

.5 


9.0 
2.5 
1.0 
1.0. 
1.0 

.'5" 

.5 

5.0 
5.0 
2.0 
10.0 
4.0 

1.5 
1.0 
.5 
.5 
.5 

"""7.0' 
20 
.5 

17 

.22 


10 
5 
4 


2. . 


3 


4.,.. 


3 


5. . 


3 

7 


6 


7 


6 


, 8 


3 


9 .. 


2.5 
1.5 

15 


10 


11 


12 


1 


13 


1 


14 


.5 


15 


.5 
.5 


m 


1?.... 


5 


18.. 


5 


19 


5 


20 


5 


2X 


.5 


22.. 


5 


23 


1.0 


24.. . 


1 5 


25. 


1.5 


26 ... 


1 5 


27 


1.5 


28.. .. 


1 


29.- 


1.0 


30. .. 


1.0 


31. .. 














Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1909-10. 


1.0 
1.0 
1.5 
2.0 
1.5 

1.5 
1.5 
1.0 

:l 

11 

1.0 
.5 
.5 
.5 

. 5 
.5 
1.0 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
2.0 
2.0 


2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
6 

6 

8 
10 

9 
12 

18 

10 
9 

8 
8 
7 

7 
8 
8 
8 
8 

34 
30 
16 
12 

10 


8 
12 
10 

8 
20 

22 
13 
15 
120 

81 

36 
21 
15 
14 
12 

10 
9.1 

8.4 
8.4 
36 

242 
53 
40 
40 
34 

30 
' 27 
25 
24 
24 
33 


90 
33 
61 
73 
127 

99 
90 

83 
81 
74 

77 
79 
68 
76 

84 

245 
199 
95 
90 

81 

72 
68 
64 
62 
58 

56 
52 
50 
49 

47 
44 


47 
53 
46 
42 
43 

40 
40 
41 
40 
39 

36 
35 
34 
34 
37 

35 
31 
33 

38 
75 

51 

43 
40 
36 
38 

34 
34 
31 


31 
30 
29 

28 
26 

26 
27 
26 
28 
25 

23 
22 
22 
22 

23 

24 
28 
38 
33 
29 

26 
29 
33 
28 
32 

64 
65 
122 

108 
90 
92 


65 
54 
49 
39 
42 

42 
40 
36 
34 
33 

33 
31 
46 
36 
31 

27 
24 
23 
20 
19 

19 
16 
15 
9.6 
12 

11 

8.8 
11 
10 
11 


11 
13 
12 
12 
11 

11 

9.3 

8.3 
6.9 
6.9 

6.6 
5.3 
5.5 
5.5 

6.2 

5.8 
4.2 
3.6 
3.4 
6.2 

5.5 
4.8 
3.9 
2.8 
2.3 

2.1 
1.9 
1.3 
1.2 

.8 
.7 


0.8 
.9 
.9 
.9 
.9 

:l 

.7 
.6 
.4 

.4 
.4 
.3 
.4 
1.0 

1.0 
1.0 
.5 
.4 
.3 

.1 
.3 
.2 
.2 
.2 

.2 
.1 
.1 

!i 


0.1 


2 


.1 


3 


.1 


4 




5 




6 




7 




8 




9 




10 




11 




12. . 




13 : 




14 




15... 




16 




17- 




18 




19-. - 




20- 




21-.. 




22 




23 




24-. 




25 




26. 




27 




28 ... 




28 




30 




31 











TIA JUAN A EIVEK BASHsT. 



33 



Combined daily discharge, in second-feet, of Cottonwood Creek and Dulzura conduit near 
Duhura, Calif, for 1909-1915— Gontuiued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


1910-11. 
1 




1.3 
1.8 
3.1 
o.O 
3.1 

2.2 
2.2 

2.2 
2.2 

1.8 

1.8 
2.2 
3.1 

4*8 

3.6 
2.6 
2.3 
3.8 
2.5 

3.3 
2.3 
2.2 
2.2 
2.2 

2.6 
2.3 
2.3 
2.3 
2.5 




2.2 
2.2 
2.1 
2.1 
2.5 

2.5 
2.2 
2.2 
2.2 
2.2 

2.1 
1.8 
1.8 
2.2 
1.8 

1.8 
2.1 
2.1 
2.2 
3.1 

2.3 
2.3 
2.2 
2.2 
2.1 

2.6 
2.2 
2.5 
2.1 
2.1 
2.9 


3.4 
3.4 
3.4 
2.6 
2.6 

2.6 
2.0 
2.0 
2.6 
11 

8.6 
3.1 
3.1 

2.8 

23 
7.1 

19 
9.3 
9.3 

6.9 
6.9 
9.3 
15 
6.9 

17 
9.3 
6.9 
9.6 

16 

14 


23 
19 
36 

68 
97 

41 
24 
52 
47 
45 

41 
36 
21 
73 

54 

46 
36 
31 
28 
27 

22 
15 
12 
12 
16 

14 
37 
31 


26 
35 
46 

78 
40 

26 
26 
30 
35 
62 

43 
40 
30 
26 
22 

21 
20 
18 
16 
15 

15 
18 
16 
14 
14 

14 

14 

12 

12 
9.5 
9.5 


9.5 
22 
18 
14 
11 

11 
26 
18 
14 
13 

11 

11 

11 
9.4 
9.4 

8.0 
8.0 
8.0 
8.0 
8.0 

8.1 
8.0 
6.9 
6.8 
6.9 

7.3 
7.3 
7.3 

6.8 
6.8 


1.0 
1.1 
1.0 
1.1 
1.0 

1.0 
1.0 

.8 
.8 
.8 

.8 
.8 
.8 
1.5 
1.0 

1.1 

.8 
.8 
.7 
.7 

1.3 
1.3 
1.3 
1.0 

.8 

1.0 
.7 
1.3 
1.0 
1.0 
1.0 


1.7 


2 




1.7 


3 




1.7 


4 




1.4 


5.. .. 




1.3 


6 




1.2 








8 




.7 


9 




.5 


10.... 




.4 


11.... 




.2 


12 




.2 


13 




.2 


14.... 




2 


15 . .. 




.2 


16 




.2 


17.... 




2 


18. .. 




.2 


19 


0.1 
.2 

.3 
.2 

'.3 

.4 

'.5 
.8 
1.0 
1.1 
1.2 


.2 


20.... 


.2 


21 


.2 


22 


.2 


23 

24 

25 

26 

27. 


.2 
.2 
.2 

.2 
. 1 


28 




29 




30 




31 




Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1911-12. 
1 


0.1 
.1 
.1 
.1 
.6 

.6 
.6 
.6 
G 
.9 


2.0 
1.8 
1.8 
1.7 
1.7 

1.7 
1.7 
1.5 
1.7 
1.7 

2.0 
2.0 
1.7 
1.7 
22.7 

40.7 
43.3 
43.1 
45.6 
41.9 

9.2 
7.1 
6.3 
5.9 

5.7 

5.6 
6.5 
6.2 
5.7 
5.7 
5.7 


4.9 
5.1 
4.9 
5.1 
4.9 

4.9 
5.5 
5.5 
5.5 
4.9 

4.9 
4.9 
4.2 
4.4 
4.4 

4.4 
4.2 
4.2 
4.2 
4.1 

3.9 
4.2 
4.2 
4.2 
4.2 

4.1 
4.1 

4.1 
3.8 


7.3 
9.7 
9.3 
10.0 

8.7 

18.5 
14.6 
10.5 
13.4 
261 

46.6 
27.4 
82.0 
46.7 
33.9 

23.0 
19.8 
17.6 
16.1 
15.3 

19.6 
21.6 
17.8 
16.5 
14.9 

15.8 
22.4 
19.2 
17.8 
60.4 
48.0 


41.5 
32.8 
26.0 
23.1 
22.0 

22.7 
19.6 
17.5 

19.8 
23.5 

70.2 
160.5 
116.8 
97.8 
90.8 

81.4 
70.7 
60.7 
51.9 
45.1 

40.3 
34.5 
30.2 
26.4 
23.7 

23.2 
24.8 
22.7 
20.1 
18.9 


17.8 
17.5 
17.3 
15.9 
15.9 

14.7 
14.9 

29.2 
44.7 
32.1 

24.2 
20.9 
18.3 
16.1 
14.5 

13.2 
12.6 
11.6 
10.8 
9.9 

9.9 
10.1 
9.4 
9.4 

8.7 

8.7 
8.1 
7.9 
6.5 
5.9 
5.3 


4.6 
4.0 
3.4 
2.8 
2.2 

2.2 
2.0 
2.0 
2.0 
2.0 

2.0 
1.7 
1.7 
.4 
.4 

.4 
.4 
.3 
.3 

.4 

.4 

.3 
.9 

.7 
.7 

.5 
.5 
.3 
.5 
.3 


0.4 


2... 


.9 




1.5 




1.3 


5 


.4 


6 


.3 






8 


.5 


9 


. 1 


10 




11 

12 

13 

15 

16 

18 

19 

20 


.9 

:t 

.9 
.9 

.9 

1.5 
1.5 
1.5 
1.5 




21. 


1.5 
1.5 
1 5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 

1.5 
1.5 




22 












25 












28 




29. 





















142131°— 21— wsp ■:f47- 



34 



SURFACE WATER OF PACIFIC SLOPE, SOUTHERI^^ CALIFORNIA. 



Combined daily discharge, in second-feet, of Cottonwood Creek and Dulzura conduit near 
Dulzura, Calif., for 1909-1915 — Continued. 



Day. 



Apr. 



1912-13. 


0.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.2 

.3 
.3 
.3 
.4 

.5 

.9 
.9 
.9 
.9 
1.9 

.9 
.9 
.9 

.7 

1.0 
1.2 
1.3 
1.0 
1.2 


2 


3 


4 


5 


6 




8 


9 


10 


11.. 


12 . . . . 


13 


14 


15 


16 


17 


18. 


19 


20... 


21 


22. 


23 


24 


25 


26. 


27 


28 


29 


30 


31 ... 


1913-14. 
1 . 




2 




3 . . .. 




4 








6 








8 




9 




10 . . 




11 




12 




13 




14 




15 




16 




17 




18 


0.7 
.7 
1.6 

1.7 
1.2 
1.1 
1.1 
1.1 

1.1 
1.2 
1.2 
1.2 
1.5 


19 


20 


21 


22 


23 


24 


25 


26 


27.. 


28 


29 


30 . . . 


31 



1.8 
1.4 
1.1 
1.1 

3.6 
3.2 
6.4 
5.6 
5.0 

5.6 
5.0 
4.1 
3.0 
3.8 
4.4 



1.3 
1.3 

1.7 
10.2 

7.6 
6.3 

5.4 
4.2 
4.7 

15.6 
12.7 
8.9 
7.1 

5.7 

5.7 
5.3 
4.4 



3.3 
3.3 
3.0 
3.0 
2.5 
2.2 



4.8 
4.1 
2.0 
1.4 
3.5 

2.9 
2.9 
2.9 
2.9 
2.9 

2.9 
2.9 
2.9 
2.9 
2.9 

7.0 
7.6 
6.2 
7.9 
7.0 

5.9 
5.6 
5.0 
5.6 
5.6 



24.1 

94 

33.4 

19.8 

15.8 



2.2 
2.2 
2.2 
2.2 
2.6 

3.8 
4.3 
5.1 
4.3 
3.0 

3.0 
3.0 
2.4 
1.7 
1.2 

1.2 
1.2 
1.2 
1.4 
4.2 

5.1 
61.8 
22.6 
14.5 
25.1 

32.2 

29.8 



13.3 
11.9 
11.2 
9.5 



8.3 
8.3 
7.6 
7.0 
6.7 



6.2 
5.6 
5.6 
5.0 

3.5 
9.3 
6.8 

48 

65 

477 

240 
76 
48.8 
38.4 

32.6 
26.3 
24 



15.5 
16.7 
15.3 

15.9 
18.0 
14.6 
15.2 
15.2 

15.9 
21.0 
18.0 
20.6 
18.6 

15.2 
13.1 
16.6 
15.2 
14.7 

18.0 
15.9 
18.0 
20.4 



18.7 
17.2 
15.8 
22.1 
34.6 
52.9 



22 

19.8 

18.9 

17.5 

15.6 

14.6 
13.6 
13.3 
12.1 
12.1 

12.1 
10.6 
10.6 



7.7 
7.7 
7.7 

7.7 
7.7 
7.7 
8.3 



11.3 
11.0 
11.8 
14.3 
14.3 



56.8 
52.3 
51.9 
48.2 
49.0 

48.8 
50.0 
49.8 
49.8 
49.8 

49.0 
47.1 
50.1 
50.3 
39.5 

42.8 
46.3 
39.3 
39.2 
37.4 

37.0 
37.0 
37.0 



34.8 
34.8 
34.8 



13.0 
10.3 



8.3 
7.7 
7.0 



5.2 
5.2 



3.8 
3.6 
3.1 
2.4 



14.4 

18.4 



19.5 
10.2 
8.2 
9.2 
10.9 



TIA JUANA RIVER BASIF. 



35 



Combined daily discharge, in second-feet, of Cottonwood Creek and Dulzura conduit near 
bulzura, Calif , for 1909-1915— Continued. 



Day. 



Apr. 



May. 



Aug. 



Sept. 



1914-15. 
1 




2 


0.35 


3 


.35 


4 


.35 


5 


.35 


6 


.35 


7 


.35 


8 


.35 


9 


.35 


10 


.35 


11 


.35 


12 


1.2 


13 


.7 


14 


.56 


15 


.56 


16 


.56 


17 ... 


1.3 


18 


1.7 


19 


6.6 


20 


6.6 


21.. 


4.9 


22 


3.5 


23 


2.8 


24 


2.5 


25 


1.9 


26 ... 


1.16 


27 


1.63 


28 


2.1 


29 


2.0 


30 


1.9 


31 


1.9 



1.7 
1.16 
1.63 

.7 
1.9 

2.3 
2.8 
3.4 
3.0 
3.5 

3.1 
3.1 
3.1 
3.1 



3.4 
3.1 
2.8 
2.8 
2.0 

2.8 
12.6 
7.2 
7.1 



5.7 
7.9 
191 



34 
31 
26 
127 

462 
194 
136 
127 
108 

84 
83 



128 
147 
148 
155 
310 

227 
189 
166 
147 
131 

120 
111 



42 
43 



28 
27 



21 
21 
20 

19.9 
19.9 
19.9 
19.6 
18.6 

18.2 
17.6 
16.7 
16.0 
158 



15.5 
14.7 
14.4 
14.4 
13.8 

13.3 
12.9 
12.9 
11.4 
11.5 

11.5 
10.7 
10.0 
10.3 



9.4 
9.4 



7.4 
7.5 
7.0 
6.5 
6.7 



5.8 
5.9 
6.1 
6.2 



6.1 
6.0 
4.5 
4.0 



1.7 
1.6 
1.9 
3.7 
3.7 

3.7 
3.7 
3.7 
3.7 
3.7 

3.7 
3.7 
3.7 
3.7 
3.7 

3.7 
3.7 

3.7 
3.7 
3.7 
3.7 



3.7 
3.7 
3.7 
3.7 



3.7 
3.7 
3.7 
3.7 
3.7 

3.7 
3.7 
3.7 
3.7 
3.7 

3.7 
3.7 
3.7 



3.3 
2.8 
2.7 
3.0 
3.6 

4.4 
4.4 
4.2 
4.0 
3.9 



Note. — Both creek and conduit were dry on days for which discharge is not given. 



36 SUKFACE WATEE OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Comhined monthly discharge of Cottonwood Creel and Dulzura conduit for 1909-1915 • 



Month. 


Discharge in second- 
feet. 


Run-Off 
(in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Run-ofE 
(in 


Maxi- 
mum. 


Mini- 
mtun. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1909. 
January . 


637 
275 
562 
186 

40 

14 
2.6 

22 

10 


10 

36 

48 

43 

17 
3.1 
.0 
.0 
.5 


114 
113 
146 

87.5 

27.3 
8.98 
.855 
2.95 
2.10 


7,010 

6,280 

8,980 

5,210 

1,680 

534 

52 

181 

125 


1911-12. 
April . 


160.5 
44.7 
4.6 

1.5 


17.5 
5.3 
.3 
.0 


45.3 

14.9 

1.34 

.19 


2 700 


February 

March 


May. . . 


'9I6 


June 


79 7 


April 


July 


11 7 


Mav 


The year 

1912-13. 

November 

December 

January. . 




June 


261 


.0 


9.10 


6,610 


July 


August 


1.3 
1.3 
15.6 
61.8 
52.9 
56.8 
34.8 
.6 


.0 
.7 
1.3 
1.2 
13.1 
34.8 
.4 
.0 
.0 


.91 
1.52 
4.53 
10.0 
19.1 
43.6 
8.38 
.34 
2.83 




September 


54 
93 
279 


The period . . 


637 


.0 


43.0 


30,800 


February 

March . 


555 
1 170 


1909-10. 


11 

34 
242 
245 

75 
122 

65 

13 
1 
.1 


.5 
2.5 
8 
33 
31 
22 
8.8 
.7 
.1 
.0 


1.55 
9.07 
33.9 
81.5 
40.2 
39.6 
28.2 
5.84 
.50 
.01 


95 

540 

2,080 

5,010 

2,230 

2,430 

1,680 

359 

30 

1 


Gctober 


April 


2' 590 


November 


May 


515 


December 


June 


20 


January . . 


September 


168 


February 

March. 


The year 

1913-14. 

November 

December 

January 






61.8 


.0 


7.54 


5,440 


April 


May 


1.7 
6.4 

94 
477 

22 

38 

14.3 
2.0 


.0 
1.1 

1.4 
3.5 

7.7 
1.8 
.7 
.0 


.51 
2.68 
9.77 
43.5 
11.8 
9.17 
4.59 
.61 




June 




July 


165 






The year 


245 


.0 


20.0 


14,500 


February 

March 


2,420 
726 




1.2 
7.7 
3.1 

23 

97 

78 

26 
1.5 
1.7 


.0 
1.3 

1.8 

2 
12 

9.5 

6.8 
.7 
.0 


.24 
2.78 
2.20 
7.95 
35.9 
25.9 
10.7 
.98 
.49 


15 
165 
135 
489 
1,990 
1,590 
637 
60 
29 




546 


1910-11. 
October... . 


M^y 


282 


June 




November 




The year 

1914-15, 

December 

January 




December 

January 


477 


.0 


6.63 


4,810 


February 

March... 


6.6 
193 
462 
160 
116 
310 
43 
15.5 
0.1 
4.4 


.0 

.7 

26 

35 

21 

42 

15.8 
5.8 
1.6 
2.7 


1.60 
18.7 
97.0 
70.7 
35.9 
103 
26.3 
9.75 
3.45 
3.66 


98 


April. . . . 


1,150 


May 


February 

March 


5,390 


June 


4,350 




April 


2 140 


The year 


97 


.0 


7.26 


5,110 


May .' 


6!330 




1,560 


1911-12. 


1.5 
45.6 
5.5 
261 


.1 
1.5 
3.8 
7.3 


1.04 
10.7 

4.55 
31.2 


64 

658 

262 

1,920 


July 


600 


December 


August 


212 


January 


September 

The year 


218 


February 

March . 




462 


.0 


30.5 


22,000 







Note.— No flow in months for which discharge is not given; records therefore represent full years, ex- 
cept the year 1909. 

PINE VALLEY CREEK NEAR DTTLZURA.i CALIF. 

Location.— Just above junction with Cottonwood Creek, 1 mile above Barrett dam, 
in NW. i sec. 15, T. 17 S., R. 3 E., about 7 miles northeast of Dulznra, San Diego 
County. 

Drainage area. — About 120 square miles, or half the total drainage area of Cotton- 
wood Creek above Barrett dam. 

Elevation. — About 1,550 feet above sea level. 

Records available. — January 1, 1906, to December 31, 1907. 

Gage. — Staff fastened to a small tree a few hundred feet above mouth. Only occa- 
sional gage readings were obtained during 1907. 

Discharge measurements. — Made by wading near gage. 

Channel and control.— Bed composed of sand; shifting. Bight bank is high and 
rocky and not subject to overflow; at very high stages water may overtop left 
bank and flow in two channels. 

JDescribed as "near Jamul" in early water-supply papers. 



TIA JUANA EIVEE BASIN. 



37 



Extremes of discharge. — Maximum mean daily discharge 1906-7: 1,500 second- 
feet, March, 1906. Minimum discharge: Dry in August, 1906, and August 19 
and 22 and September 10 to 19, 1907. 

Diversions. — None during the operation of the station, as Dulzura conduit was not 
completed until January, 1909. 

Regulation. — None. 

Accuracy. — All determinations of discharge considered fair. Daily discharge deter- 
mined by shifting-control method or by comparison Avith record of flow of Cotton- 
wood Creek near Dulzura . 



Disrhargc measurements of Pine 


Valley C 


^eeh nea) 


Dulzura, Calif. Jor 1906-190S. 


Date. 


Made by- 


height. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


1906. 
Jan. 5 


W. V, Hardy 


Feet. 


Sec.-ft. 

1.8 
14.4 
17.6 
41 

4 
20 

8.2 
57 
32 

7.7 
.24 

6.7 
14.6 

27 
55 
31 
39 
90 


1907. 
Mar. 20 
Apr. 11 

27 
May 19 

29 
June 11 

16 
Dec. 16 

1908. 
Jan. 16 

27 
Feb. 14 

23 
Mar. 12 

21 
Apr, 5 
May 12 
Nov, 18 
Dec. 22 


W. V.Hardy ... 


Feet. 
4.32 
4.35 
4.20 
3.95 
3.90 
3.75 
3.77 
3.33 

3.40 
3.74 
3.88 
3.80 


Sec.-ft. 
38 


19 
19 
20 

Feb. 3 
15 

Mar. 11 


:::.!do.".'.";."]:;!."!"!" 

do 

do 

do 

do 

do 

do 

C. H. Lee 


3.10 
3.20 
3.45 
2.94 
3.12 
3.00 
4.50 
4.40 
4.20 
4.00 
4.21 
4.30 

4.45 
4.60 
4.30 
' 4.30 
4.58 


do 

do 

do 

do 

Clapp and Hardy 

N.L.Hall 


51 
30 
17 
13 
14 
10 


Apr. 19 

May 8 
June 22 


W. V. Hardy 


3.2 


do 

do 

do 

do 

do 

do 

do 

do 

do 

do 




Oct. 5 


W.F.Martin 


5.3 


Nov. 27 
Dec. 15 

1907. 
Jan. 5 

15 
Feb. 7 

27 
Mar. 8 


W.V.Hardy 

do 

do 

do 

do 

do 

do 


20 

24 

20 

13 

10 
7.2 
4.1 
.91 
2.1 











Daily gage height, in 


feet, 


/ Pine 


Valley Creeh nea) 


Dulzura, Calif ., J 


or 1906. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May 


June, 


July. 


Aug, 


Sept. 


Oct. 


Nov, 


Dec. 


1 . . 




3.00 
2.95 
2.95 
2.95 
2.96 

3.24 
3.15 
3.07 
3.09 
3.01 

3.11 
3.01 
3.01 
3.09 
4.02 

3.60 
3.40 
3.30 
3.28 
3.20 

3.21 
3.22 
3.19 
3.08 
3.01 

2.96 
2.94 
2.97 


3.00 
3.00 
2.98 
3.00 
3.04 

2.98 
2.92 
2.93 
2.92 
2.95 

2.97 
4.35 
5.00 
4.03 
3.70 

4.04 
3.95 
3.60 
3.50 
3.38 

3.31 
3.35 
3.30 

■■5.'26' 
4.82 
4.80 
5.00 


4.90 
4.90 
4.75 
4.75 
4.80 

4.75 
4.80 
4.70 
4.65 
4.65 

4.60 
4.55 
4.60 
4.55 
4.55 

4.50 
4.50 
4.50 
4.50 
4,50 

4.45 
4.45 
4.50 
4.50 
4.50 

4.50 
4.50 
4.65 
4.75 
4.65 


4.55 
4,55 
4.50 
4,50 
4,55 

4.50 
4.50 
4.40 
4.40 
4.40 

4.35 
4.40 
4.40 
4.40 
4.40 

4.40 
4.35 
4.35 
4.30 
4.30 

4.30 
4.40 
4.40 
4.40 
4.40 

4.50 
4.45 
4.50 
4.50 
4.40 
4.40 


4.40 
4.35 
4,35 
4.30 
4,30 

4.30 
4.30 
4.30 
4.30 
4.30 

4.25 
4.20 
4.20 
4.20 
4.20 

4.20 
4.20 
4.20 
4.15 
4,15 

4,10 
4.20 
4.15 
4.15 
4.15 

4.15 
4.15 
4.20 
4.15 
4.15 


4.12 
4.12 
4.11 
4,12 
4,13 

4,10 
4,20 
4.20 
4,22 
4,20 

4.17 
4.15 
4.12 
4.12 
4.10 

4.11 
4.10 
4.10 
4.11 
4.10 

4.07 
4.05 
4.06 
4.06 
4.05 

4.05 
4.05 
4.04 
4.03 
4.02 
4.02 


4,02 
4.01 
4.01 
4.00 
3.95 

3.93 
3.80 
3.79 
3.76 
3.65 

3.60 
3.55 
3.48 
3.40 
3.37 

3.00 
2.70 
4.40 
4.40 
4.20 

4.20 
4.20 
4.20 
4.19 
4.18 

4.18 
4.18 
4.16 
4.10 
4.00 
4.00 


3.95 
3.95 
3,95 
3.95 
3.94 

3.94 
4.00 
4.00 
3.98 
3.98 

4.00 
4.00 
4.09 
4.08 
4.12 

4.02 
4.05 
3.96 
4.05 
4.03 

3.98 
4.02 
3.91 
4.01 
4.03 

4.00 
4.04 
3.98 
3,92 
4,00 


3.94 
4,03 
4,10 
3.98 
3.80 

3.55 
3.60 
3.70 
3.75 
3.80 

4.00 
4.00 
4.05 
4.05 
3.95 

3.95 
4.00 
4.00 
4.10 
4.05 

4.10 
4.10 
4.05 
4.10 
4.05 

4,00 
4,10 
4.10 
4.10 
4,00 
4.10 


4,10 
4.05 
4.05 
4.00 
4.10 

4.10 
4.10 
4.10 
4.10 
4.10 

4.05 
4.10 
4.10 
4.05 
4.10 

4.10 
4.10 
4.10 
4.05 
4.05 

4.10 
4.10 
4.20 
4.20 
4.20 

4.20 
4.20 
4.20 
4.10 

4.15 


4.15 


2 




4 20 


3 




4.20 


4 




4 20 






4.20 


6 




4.25 


7 




4.25 


8 




4.25 


9 




4.25 


10 




4.20 


11 




4.25 


12 




4.30 


13 




4.45 


14 




4.45 


15 




4.30 


16 




4.30 


17 




4.20 


18 


3.66 
3.20 
3.45 

3.25 
3,20 
3.18 
3.10 
3.08 

3.05 
3.03 
3 03 
3.03 
3.03 
3.03 


4.20 


19 


4.30 


20 


4.20 


21 


4.20 


22 


4 15 


23 


4.20 


24 


4.20 


25 


4.20 


26 


4.20 


27 


4.30 


28 


4.70 


29 


4.60 


30 


4.50 


31 . 


4.50 







38 SURFACE WATER OF PACIFIC SLOPE, SOUTHERT^ CALIFORNIA. 

Daily discharge, in second-feet, of Pine Valley Creeh near Dulzura, Calif , for 1907. 



Day, 



1. 

2. 
3. 
4. 
5. 

6. 
7. 
8. 
9. 
10. 

11. 

12. 
13. 
14. 
15. 

16. 
17. 
18. 
19. 
20. 

21. 

22. 
23. 
24. 
25. 

26. 
27. 
28. 
29. 
30. 
31. 



63 
55 
57 
55 

55 
60 
124 

75 



108 
100 
90 
90 

83 

76 
72 
68 
56 



Apr. 



May. 



Aug. 



Sept. 



1.2 
1.2 
1.2 
1.6 
1.7 

2.2 
2.5 
2.1 
2.5 
2.1 

2.0 

1.8 
1.8 
2.8 
3.5 

5.0 
6.0 
7.0 
6.0 
4.0 

2.8 
3.3 
3.7 
4.0 
3.0 

2.8 
2.8 
4.0 
3.0 
4.0 



3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
2.9 

2.8 
2.8 
3.0 

3.0 
2.8 
2.8 
2.8 
2.9 

2.9 
3.5 
3.5 
3.4 
3.3 

3.2 
3.0 
3.0 
3.2 
3.0 

2.8 
2.8 

2.8 
2.8 



2.8 
2.8 
2.8 
2.8 

3.0 
3.0 
3.6 

3.5 
3.4 

3.6 
3.5 
3.4 
3.3 
3.3 



3.2 
3.1 
3.2 
3.3 



3.4 
3.4 
3.4 

3.4 
3.8 
3.9 
4.0 
4.0 



Note. — Discharge January to June, computed by shifting-control method; July to December inter- 
polated by comparison with record of flow of Cottonwood Creek near Dulzura. 

Monthly discharge of Fine Valley Creek near Dulzura, Calif, for 1906-7. 



Month. 


Discharge in second- 
feet. 


Run-oflf 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Run-ofl 

(total in 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 

mum. 


Mini- 

mum. 


Mean. 


acre- 
feet). 


1906. 

January 


41 
75 
1,500 
150 
71 
32 

8.2 
32 
2.7 


1 
5 
3 

44 
15 
1.8 
.6 
.0 
.2 


10.4 
19.4 
156 
89.6 
39.4 
9.8 
2.6 
4.0 
.6 


640 

1,080 

9,590 

5,330 

2,420 

583 

160 

246 

36 


1906-7. 
January 


124 
45 
119 
71 
30 
16 
3 

1.3 
8 


19 
26 
36 
27 
12 
3 
1 




49.3 
34.8 
62.4 
45.0 
19.8 
10.0 
2.0 
.6 
.3 


3 030 


February 

March.. 


February 


1,930 
3 840 


April 


April 


2,680 


May. 


May. 


1 220 






595 


July 


July 


123 






37 


September 


September 

The year 


18 










20,100 






20.6 


14,900 










1907. 
October 








1906-7. 
October . . . 


1.8 
6.5 
114 


.0 
.3 
4.2 


.8 
2.6 
20.1 


49 

155 

1,240 


7 
3.5 

5.1 


1.2 

2.8 
2.8 


3.1 
3.0 

3.4 


191 


November 

December 


November 

December 


179 
209 



Note.— Discharge January, 1906, to June, 1907, determined by the shifting-control method, 
rest of 1907 discharge was estimated by comparison with record of flow of Cottonwood Creek. 



TIA JUAI^A EIVER BASIN^. 



39 



DTTLZURA CONDXTIT NEAR DXTLZITIIA,! CALIF. 

Location. — ^About 12 miles below intake and 2 miles southeast of Dulzura, San Diego 
County. During 1909 and 1910 station was 1| miles below intake. 

Records available. — ^January 1, 1909, to September 30, 1915. 

Gage. — Lietz water-stage recorder at weir. 

Discharge. — Computed from gage-height record at an 8-foot rectangular steel plate 
weir about 1| miles above lower end of conduit. 

Accuracy. — Record considered good. Water-stage recorder is checked twice each 
day by patrolman. The seepage loss between intake and measuring weir is 
estimated at about 3 per cent. 

Cooperation. — Record for 1911 furnished by Southern California Mountain Water 
Co., through M. M. O'Shaughnessy, chief engineer. Records for 1912-15, fur- 
nished by City of San Diego, through the Department of Water. Records are 
furnished in million gallons per day. Determinations of daily discharge con- 
verted into second-feet and monthly discharge computed by the U. S. Geological 
Survey. Later records are withheld by City of San Diego on account of pending 
litigation. 

Dulzura conduit (PL XVIII, C) diverts water from Cottonwood and Pine Valley 
creeks about half a mile above their junction. The conduit is 13.38 miles long and 
is concrete lined except in 4,490 feet of flume and 9,219 feet of tunnel. The average 
width is about 5 feet and the depth 4 feet 2 inches. The grade is 4 feet in 5,000 and 
the capacity 40 million gallons per day (62 second-feet). The water, which is stored 
at Morena reservoir, flows down the natural channel of Cottonwood Creek about 6| 
miles to the intake of the conduit. The flow of Pine Valley and Lyons Valley creeks 
is also diverted into the conduit. From the conduit the water flows down the natural 
channel of Dulzura Creek into Lower Otay reservoir, where it is diverted for munic- 
ipal use at San Diego. 

Discharge measurements of Dulzura conduit near Dulzura, Calif., for 1909-1915. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charere. 


1909. 
Feb. 24 


W. V. Hardy 


Feet. 
3.40 
3.40 
3.70 
1.65 

.45 
.49 
.62 


Scc.-Jt. 
52.0 
51.0 
54.2 
16.2 

.9 
1.1 
2.3 


1909. 

Jan. 25 

25 

25 

25 

25 

25 

25 

Mar. 13 

June 5 


W. V.Hardy 

do 

do 

do 

do 

do 

do 

do 

do 


Feet. 
0.94 
1.26 
1.56 
2.23 
2.75 
3.28 
3.50 
1.85 
.37 


Sec.-ft. 


24 
Apr. 21 

May 27 

1910. 
Jan. 25 
25 
25 


do 

Clapp and Hardy 

W. V . Hardy 


12.0 
18.0 
26 


do 

do 

do 


38.0 
48.0 
53.0 
19.0 

.8 



1 Described as near ' 'Jamul" in early water-supply papers. 



40 



SUKFACE WATER OF PACIFIC SLOPE. SOUTHEEN CALIFORNIA. 



Daily discharge^ in second-feet, of Dulzura conduit near DuJzura, Calif., for 1909-1915. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1909. 

1 

2 

3 

4 

5 

() 


2.1 
2.1 
2.1 
2.1 
2.1 

2.1 
2.1 
2.1 
2.1 

A.b 

3.2 
2.1 

7.3 
40.0 

26.6 

21.5 
16.6 
11.8 
8.8 
7.3 

5.9 


23.2 
23.2 
28.4 
42.0 
37.0 

32.1 
32.1 

38 
44 
44 

44 
42 
39 
37 
42 

40 
40' 
42 
49 
49 

49 
39 
43 
50 
49 

50 
50 

50 


50 
48 
42 
55 
50 

50 
51 
50 
50 
47 

52 
50 
45 
45 
•44 

44 
44 
44 
48 
43 

"*i8.'2" 
52 
52 

53 
49 
52 
51 


54 
54 
56 
56 
56 

56 
58 
52 
52 

56 

56 
56 
56 
56 
56 

56 
54 
56 
56 
56 

56 
56 
50 

48 

48 

44 
42 

42 
48 
34 


32.1 

36 

32.1 

30.2 

30.2 

28.4 
28.4 
30.2 
26.6 
24.9 

26.6 
24.9 
28.4 
28.4 
24.9 

24.9 
23.2 
23.2 
2.3.2 
21.5 

21.5 
21.5 
21.5 
21.5 
21.5 

18.2 
18.2 

10.6 
16.6 
16.6 
15.0 


11.8 
10.3 
8.8 
10.3 

8.8 

10.3 
10.3 
10.3 
10.3 
10. 3 

8.8 
10.3 

8.8 
7. .3 

7.3 
7.3 
5.9 
7.3 

8.8 

7.3 
5.9 
.5.9 
3.2 
3.2 

3.2 
2.1 
2.1 
2.1 
2.1 


0.7 

1.1 

.6 

■.\ 

.4 


7 

8 


.4 

.3 


9 


.2 


10 

11 : 

12 

13 


.2 


14 

15 

16 




17. 




18 




19 




20 




21. 




22 




23 






24 






25..., 






26 


16.6 
15.0 

24.9 
21.5 
26.6 

28.4 




27 




28 




29 




30 




31 








Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jnne. 


1909-10. 
1 




20.6 


42 
49 
42 
37 
39 

36 
36 
37 
37 
36 

33 

32.1 

31.1 

31.1 

34 

32.1 

28.4 
30.2 
34 
52 

38 

38 
36 
32.1 
34 

30.2 
30.2 
27.5 


20.6 
25.7 
24.9 
24.0 
23.2 

23.2 
23.2 
23.2 

of- 

19.8 
19.8 
19.8 
19.0 
20.6 

21.5 
24.9 

34 
30.2 

26.6 

23.2 
26.6 
30.2 

24.9 

28.4 

55 
50 
53 
54 

54 


■■"ii.'s" 

35 

38 

36 

32.1 

30.2 

30.2 

30.2 
26.6 
42 
33 

28. 4 

24.9 
21.5 
20. 6 
18.2 
17.4 

17.4 
15.0 
14.2 

2.6 
11.0 

9. 5 
8.0 
9.5 
9.5 
10.3 


10.3 
11.8 
11.8 
11.0 
9.5 

8.8 
7.0 
6.2 
5.9 
5.9 

5. 6 
4.5 
4.5 
4.5 
.5.2 

4.8 
3.2 
2.6 
2.6 
5.2 

4.5 
3.8 
3.2 
2.1 

1.6 

1.6 
1.4 
.9 
.7 
.4 
.4 


0.4 


2 




.5 


3 




16.6 

50 

49 

54 
58 
56 
56 
56 

55 
56 
53 
51 
52 

54 
52 
56 

56 

56 
56 
50 

50 
47 
45 
45 
43 
40 


.5 


4 




.5 


5 




.5 


6 


7.3 
6.6 
8.8 

27.5 

51 

30.2 
16.6 
12.6 
11.0 
9.6 

8.0 

6.6 
5.9 
5.9 
24.0 

52 
35 
32. 1 
30. 2 

28. 4 

24.0 
23.2 
20.6 
20. 6 
20.6 
29.3 


4 


7 


.4 


8.. 


4 


9 


.3 


10 


.2 




,2 




,2 


13 


.1 


14 


.2 


15... 




16 




17... 




18 

19 

20 

21 

22 

23 

24 

25 

26 




27.. . 












30 




31 









TIA JUAISTA EIVEK BASIN. 



41 



Daily discharge, in second-feet, of Dulzura conduit near Dulzura, Calif., for 1909-1915 — 

Continued. 



Day. 


Dee. 


Jan. 


Feb. 


Mar. 


Apr. 


Day. 


Dee. 


Jan. 


Feb. 


Mar. 


Apr. 


1910-11. 
1 






19.2 
16.3 
32.7 
65.1 
62.1 

37.4 
20.0 
47.9 
42.5 
40.5 

37.4 
32.7 
18.1 
50.7 
47.9 


24.0 
32.7 
42.5 
65.1 
32.7 

24.0 
24.0 
28.2 
32.7 
59.2 

37.4 
37.4 
28.2 
24.0 
20.7 


8.4 
20.0 
16.3 
13.0 

9.8 

9.8 
24.0 
16.3 
13.0 
11.4 

9.8 
9.8 
9.8 

8.4 

8.4 


1910-11. 
16 




20.0 
4.6 

16.3 
7.0 
7.0 

4.6 
4.6 
7.0 
13.0 
4.6 

14.4 
7.0 
4.6 
7.0 

13.0 
9.9 


42.5 
32.7 
28.2 
26.0 
24.0 

20.0 
13.0 
9.8 
9.8 
14.2 

13.0 
35.1 
28.2 


19.2 
18.6 
17.0 
14.5 
14.2 

13.5 
16.3 
14.5 
13.2 
13.2 

13.0 
12.4 
11.0 
10.5 
8.4 
8.4 


7.0 


2 






17 




7.0 


3. 






18 




7.0 


4 






19 




7.0 


5 






20 




7.0 


6 






21 




7.0 


7 






22 




7.0 


s 






23 




5.8 


9. .. 






24 




5.8 


10 






25 




5.8 


11 






26 




5.8 


12 






27 


0.4 
.4 
.4 

.4 
.4 


5.8 


13 






28 

29 


5.8 


14 






5.8 


15.. . 




4.6 


30 


5.8 






31 











Day. 


i Jan. 


Feb." 


Mar. 


Apr. 


May. 


June. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


1911-12. 
1. 


3.6 
3. C 
3.6 
3.6 
3.6 

3.6 
4.2 
4.2 
4.2 
3.6 

3.6 
3.6 
2.9 
2.9 
2.9 


5.3 
8.2 
7.8 
8.5 
7.2 

16.1 
12.9 
8.8 
10.7 
39.7 

35.0 
22.4 
42.8 
38.1 
29.7 


38.5 
30.8 
24.0 
21.1 
20.0 

20.7 
17.8 
15.8 
17.8 
21.5 

37.3 

47.5 
43.8 
43.8 
42.8 


16.1 
15.8 
15.8 
14.4 
14.4 

13.2 
13.2 
26.8 
40.9 
29.7 

22.4 
19.2 
16.8 
14.8 
13.2 


4.2 
3.6 
2.9 
2.4 
1.8 

1.8 
1.5 
1.5 
1.5 
1.5 

1.5 
1.2 
1.2 


1911-12, 
16 


38.5 
40.9 
40.1 
41.4 
38.9 

7.2 
5.3 
4.8 
4.2 
4.2 

3.9 
4.8 
4.5 
4.2 
4.2 
4.2 


2.9 
2.9 
2.9 
2.9 
2.9 

2.6 
2.9 
2.9 
2.9 
2.9 

2.9 
2.9 
2.9 

2.8 


20.0 
17.8 
15.8 
14.4 
13.5 

17.8 
22.4 
16.1 
14.8 
13.2 

13.8 
20.4 
17.2 

15.8 
33.9 
42.8 


41.4 
45.7 
44.7 
41.8 
40.9 

37.3 
31.8 
27.7 
24.4 
22.0 

21.5 
22.8 
20.7 
18.1 

17.2 


11.9 
11.3 
10.7 
9.9 
9.2 

9.2 
9.2 
8.5 

8.5 
7.8 

7.8 
7.2 
7.2 
5.9 
5.3 
4.8 




2::::::;:::::::::: 


17 




3.. 


18 




4 ; 


19 




5 1 


20 




6 




21 




7. 




22 

23 




8 






9. 




24 




10 


1 


25 




11. 


1 


26 




12 ; 


27 




13 


28 




14 ' 


29 




15. 


; 20.7 


30 






31 




Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Sept. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Sept. 


1912-13. j 


1.2 
1.2 
1.2 
1.2 
1.2 

2.4 
2.9 
3.6 
2.9 

1.8 

1.8 
1.8 
1.2 
.5 


21.5 

15.8 
13.8 
15.2 
13.8 

14.4 
16.5 
13.2 
13.8 
13.8 

14.4 
19.2 
16.5 
19.2 
17.2 


48.3 
45.7 
47.6 
45.7 
46.6 

46.6 
47.6 

47.6 
47.6 
47.6 

46.6 
44.7 
47.6 
47.6 
36.8 


31.8 
32.8 
14.4 
25.8 
30.8 

30.8 
9.9 
7.8 
6.5 
5.3 

4.2 
3.6 
2.9 
2.9 
3.6 


""28." 6' 
4.8 
.5 


1912-13. 
16 


13.2 
10.3 
7.2 
5.6 
4.2 

4.2 
3.6 
2.9 
2.4 
1.8 

1.8 
1.8 
1.8 
1.8 
1.5 
1.2 


"2.'4" 

2.9 
32.8 
19.2 
12.5 
15.1 

29.7 
23.2 
33.9 


13.8 
11.9 
15.2 
13.8 
13.2 

16.5 
14.4 
16.5 
17.2 
19.2 

17.2 
15.8 
14.4 
20.7 
32.8 
46.6 


40.1 
43.8 
36.8 
36.8 
35.0 

35.0 
35.0 
35.0 
35.0 
34.1 

35.0 
35.0 

32.8 
32.8 
32.8 


2.4 
1.8 
.9 
.9 
1.4 

1.8 




2 




17 




3 




18 




4 




19 




5 




20 




6 




21 




7 




22 




8... 




23 






9 




24 . 






10 


8.5 

5.9 
4.8 
3.9 
2.9 
2.9 


25 






11 


26 






12 


27 






13 


28 


.9 
2.8 
1.4 




14 


29 




15 


30 






31 















Note.— No flov/ from Oct. 1, 1911, to Jan. 14, 1912; and from June 14 to Sept. 30, 1912. 



42 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Dulzura conduit near Dulzura, Calif., for 1909-1915 — 

Continued. 



Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


1913-14. 
1.. . 




3.6 
2.9 


11.3 
9.9 
9.2 

7.8 
7.2 

6.6 
6.6 
5.9 
5.3 
5.3 

5.3 
4.8 
4.2 
4.2 
3.6 


20 

17.8 

17.2 

15.8 

14.1 

13.2 
12.2 
11.9 
10.7 
10.7 

10.7 
9.2 
9.2 

8.5 

7.8 


11.9 
9.2 

7.8 
7.2 

7.2 

7.8 
7.2 
6.6 
5.9 
5.3 

7.2 
6.6 
5.3 
4.2 
4.2 


11.9 
12.6 
10.7 

8.2 
7.2 

6.6 
5.3 
5.3 
4.2 
4.2 

4.2 
4.2 
3.6 
4.2 
4.5 


1 
16. 
17. 

18. 
19. 
20. 

21. 
22. 
23. 
24. 
25. 

26. 
27. 
28. 
29. 
30. 
31. 


913-14. 




. 5.3 
. 5.9 
. 4.2 
. 5.9 
. 5.3 

4.2 
4.2 
8.6 

4.2 
4.2 

5.3 
17.8 
42 
30 
17.8 
13.8 


2.1 

7.8 
5.3 

35 

46 

48 
38 
48 
42 
35 

30 
24 
22 


7.8 
7.8 
6.6 
6.6 
6.6 

6.6 
6.6 
6.6 
7.2 

7.8 

7.8 
9.9 
9.9 
10.7 
13.2 
13.2 


3.6 
2.8 
2.8 
2.4 
1.8 

1.2 
6.6 
13.2 
17.2 
36.9 

18.4 
9.2 
7.2 
7.8 
9.2 


4.2 


2 








3.6 


3 








2.8 


4 










1.8 


5 




2.4 

1.8 
1.8 
1.8 
1.8 
1.8 

1.8 
1.8 
1.8 
1.8 
1.8 






1.4 


6 






2.4 
1.8 
4.8 
4.2 
3.6 

4.2 
3.6 
2.9 
1.8 
2.6 
3.2 


.7 


7 






.2 


8 








9 








10 








11 






.4 


12 






.4 


13 








14 








15 ... . 
























Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jirne. 


July. 


Aug. 


1914-15. 
1 




1.0 
.46 
.93 
.00 

1.2 

1.6 
2.1 
2.7 
2.3 

2.8 

2.4 
2.4 
2.4 
2.4 

2.7 

2.7 
2.4 
2.1 
2.1 
1.3 

2.1 
11.3 
6.5 
6.4 
5.9 

5.6 
5.0 
6.9 

22 

52 

48 


45 
46 
44 
43 
43 

42 
32 
30 
26 

46 

13.8 
4.2 
24 
44 
43 

42 
40 
46 
43 
45 

44 
24 
27 
44 
47 

47 
48 
45 


49 

45 
48 
49 
46 

48 
51 
49 
51 
51 

49 
51 
51 
51 
49 

47 
46 
45 
44 
42 

40 
39 
40 
37 
36 

35 

40 
38 
40 
34 
SO 


28 
27 
27 
26 
25 

28 
27 
25 
24 
22 

21 
20 

14.4 
^ 17.1 
32 

28 
22 
20 
20 

18.8 

20 
41 
45 
41 
43 

35 
32 
29 
39 
51 


52 
52 
52 
51 
53 

51 
50 
48 
45 
36 

40 
44 
34 
43 
51 

47 
50 
51 
49 
49 

50 
49 
34 
22 
48 

48 
45 
42 

42 
40 

38 


37 
36 
36 
37 
35 

34 
31 
29 
27 
25 

25 
24 
23 
23 
22 

20 
19.2 

18.4 
17.8 
17.1 

17.1 
17.1 
17.1 

16.8 
15.8 

15.4 
14.8 
14.1 
13.5 
13.2 


12.9 
12.2 
11.9 
-11.9 
11.3 

11.0 
10.7 
10.7 
9.2 
9.2 

9.2 
8.5 
7.8 
8.2 
7.1 

7.2 
7.3 
6.7 
6.5 
5.9 

5.5 
5.5 
5.0 
4.5 
4.2 

3.9 
3.6 
3.4 
3.4 
3.4 
3. 5 


3.6 


2 




3.6 


3 




2.3 


4 




1.7 


5 




1.4 


6 




1.2 


7 






8 






9 






10 






11 






12 






13 






14 






15 






16 






17 






18 






19 


5.3 
5.3 

4.2 
2.8 
2.1 
1.8 
1.2 

.46 
.93 
1.4 
1.3 
1.2 
1.2 




20.. 




21 




22 




23 




24 




25 




26 . 




27 




28 




29 




30 






31. .. 

























Note.— Daily discharge 1909-10 determined from a rating curve well defined between 0.7 and 54 second- 
feet. Probably a small amount of water in conduit during May, 1911. Conduit dry on all days for which 
discharge is not given. 



TIA JUAN A RIVER BASIN. 43 

Monthly discharge of Dulzura conduit near Dulzura, Calif., for 1909-1915. 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, m^tun. 



Run-off 
(total in 
acre- 
feet). 



Discharge in second- 
feet. 



Maxi- 
mum. 



Run-off 
(totalin 
acre- 
feet). 



1908-9. 

January 

February 

March 

April 

May 

June 

July 



55 
58 
36 



0.0 
23.2 
.0 
34 
15 
2.1 
.0 



10.1 
41 

44.7 
52.5 
24.4 
7.3 
.16 



6,210 
22, 800 
27,500 
31,200 
15,000 

4,340 



The period. 

1908-10. 

December 

January 

' February 

March 

April 

May 

June 



52 
58 
52 
55 
42 
11.8 



.0 
.0 

27.5 

19 
.0 
.4 
.0 



17.7 


10,900 


48.4 


2,980 


35.5 


1,970 


30.0 


1,840 


19.4 


1,150 



301 
10 



The year.. 



1910-11. 
December . . . 

January 

February 

March 

April 



20.0 
65.1 



8.4 
5.8 



4.81 
31.0 



1,720 

1,450 

562 



The year.. 

1911-12. 

January , 

February 

March 

April 



41.4 
4.2 
42.8 
47.5 



.0 
2.6 
5.3 
15.8 



8.77 
3.24 
19.4 
30.0 



1,190 
1,790 



1911-12. 

May , 

June 

The year. 

1912-13. 

January 

February 

March , 

April 

May, 
^ t. 

The year 
1913-14. 
December — 

January 

February 

March 

April 

May 

The year 

1914-15. 
December — 

January 

February 

March 

April 

May 

June 

July 

August 

The year 



4.8 
.0 



13.2 
33.9 



.0 
.0 
11.9 
32.8 
.0 
.0 



3.04 
7.02 
17.3 
41.0 
7.34 
1.13 



187 
390 
1,060 
2,440 
451 
67 



6.35 



4.8 
42 
48 
20 

36.9 
12.6 



1.2 
.0 



1.13 
6.47 
17.1 
10.4 
8.13 
3.63 



398 
950 
640 
484 
223 



48 



3.82 



5.3 

52 
48 
51 
51 
53 
37 
12.9 
3.6 



.0 
.0 
4.2 
30 
14.4 
22 
13.2 
3.4 
.0 



.942 
6.76 
38.1 
44.2 
28.3 
45.4 
23.0 
7.46 
.45 



416 
2,120 
2,720 
1,680 
2,790 
1,370 

459 



53 



.0 



11,600 



Note — No flow in months for which records are not given. Records therefore represent complete years. 

MISCELLANEOUS MEASUREMENTS. 

Measurements of stream flow in the Tia Juana River basin at 
points other than those at which gaging stations are maintained are 
listed in the following table : 

Miscellaneous discharge measurements in Tia Juana River drainage basin. 



Date. 


Stream. 


Locality. 


Gage 
height. 


Dis- 
charge. 


Jan. 19, 1915 


Tia Juana River. 

do . 


2J miles above Tia Juana, Mexico 


Feet. 


Sec.-ft. 
0.8 


Apr. 6, 1915 
Apr. 10,1915 
Apr. 6, 1915 
Apr. 10; 1915 


Tia Juana, Mexico 




44 


do 


do 




36 


. ..do 


Mouth . . 




37 


do 


do 




26 


Dec. 19,1913 
Apr. 5, 1915 


Cottonwood Creek 

do 






1.5 


Marron Valley 


0.30 
.18 
.09 


12 


Oct. 1, 1915 


do 


Near Campo 


.8 


Oct. 8, 1915 


..do 


do 


.6 


Jan. 27,1916 


do... 


Morena reservoir 


15, 356 


Mar. 10,1918 


do 


SW.J sec. 23, T. 18 S., R. 2 E., near Cotton- 
wood. 




5.1 









a Computed from data collected at reservoir by Geo. Cromwell, city engineer, San Diego. 



44 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

SWEETWATER RIVER BASIN. 

GENEBAL FBATUBES. 

Sweetwater River rises in the south and east slope of the Cuyamaca 
Mountains of the Coast Range, flows nearly due south for a distance 
of 15 miles, then turns to the west and southwest and discharges 
into San Diego Bay south of National City. Its length is 45 miles 
and its drainage area comprises about 215 square miles, the greater 
part of which is in mountainous country. The basin is extremely 
narrow. It lies directly south of San Diego River and north of the 
Otay and Cottonwood Creek basins. 

The topography is not so rough as that of San Diego River basin, 
although the mountains and foothills extend within 3 or 4 miles 
of the shore line of San Diego Bay, and the vaUey and mesa lands are 
not so extensive as along San Diego River. The basin is poorly 
forested. The timber is confined almost entirely to the immediate 
valleys of the streams and to the higher mountain regions. The 
mountain slopes are fairly well covered with brush, but the lower 
foothills are almost bare, supporting only a sparse growth of low 
brush. 

The mean annual rainfall ranges from 10 to 15 inches along the foot- 
hill belt and from 20 to 45 inches in the mountains. 

A considerable area lying between San Diego Bay and the foothills 
south from National City to the Mexican boundary is under a high 
state of cultivation. The greater part of this land is irrigated by 
water taken from Sweetwater River. 

The celebrated Sweetv/ater dam is on Sweetwater River about 8 
miles above its mouth at an elevation of 145 feet. (See PI. VII, A.) 
There are two other reservoir sites on Sweetwater River, one a short 
distance above the Dehesa post office and another 1 mile below Des- 
canso, at an elevation of 3,340 feet above sea level. 

During thfe extremely dry period from 1898 to 1904 there were 
years when no water from Sweetwater River reached the reservoir. 
From 1899 to 1904 the reservoir was dry, and to tide over this period 
of drought pumping was resorted to. Wells were sunk in the reser- 
voir site, and pumps installed, by means of which water was delivered 
to the distribution system. Pumping was also extensively carried on 
in the vaUey along the river below the reservoir. It is probable 
that the construction of additional storage reservoirs on the upper 
reaches of the river would serve to tide over an extended dry period. 

GAGING-STATION BECORDS. 

SWEETWATER RIVER NEAR DESCANSO, CALIF. 

Location.— In SE. I sec. 25, T. 15 S., R. 3 E., at Ellis ranch, 2 miles below month 

of Gnatay Creek, and IJ miles below Descanso, San Diego County. 
Drainage area. — 43.7 square miles (measured on topographic maps). 
Elevation.— About 3,300 feet above sea level. 



U. S. GEOLOGICAL SURVEY 



WATER-SUPPLY PAPER 447 PLATE VII 




A. SWEETWATER DAM, SEPTEMBER 17, 1918. 








ill' 



B. LAKE HODGES DAM, SAN DIEGNITO RIVER. 



TJ. S. GEOLOGICAL SURVEY 



WATER-SUPPLY PAPER 447 PLATE VIII 





MURRAY DAM, MARCH 9, 1918. 
A, Upstream side; B, downstream side. 



SWEETWATER RIVER BASIN. 



45 



Records available. — November 21, 1905, to September 30, 1918. 

Gage. — Staff in tliree sections on left bank a short distance below intake of Ellis 
ditch. Gages previously used have been at about same site, but original datum 
has not been maintained. 

Discharge measurements. — Made from cable just below gage or by wading. 

Channel and control. — Sand and fine giavel; shifting. Banks high and not likely 
to be overflowed. October 11, 1914, a concrete control was constructed across 
channel opposite gage. (See PI. VI, B.) It was wrecked by the flood on Janu- 
ary 27, 1916, and has not "been rebuilt. A section of this control and a few large 
boulders serve as incomplete control. 

Extremes of discharge.— 1905-1918: Maximum stage January 27, 1916, not known 
(discharge, 9,870 second-feet); no flow during parts of 1910, 1911, 1913, 1914, and 
1916. 

Diversions. — About 0.3 second-foot is diverted above gage for irrigation on Ellis 
ranch. 

Regulation. — None. 

Accuracy. — Stage-discharge relation not permanent. Rating curves usually appli- 
cable only for short periods. Gage read to hundredths twice daily. Daily dis- 
charge ascertained by applying mean daily gage height to rating table, by shifting- 
control method or, by interpolating between dis charge measurements. Records 
fair. 

Discharge measurements of Sweetwater River near Descanso, Calif., for 1905-1918. 



Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1905. 




Feet. 


Sec.-fL 


1907. 




Feet. 


Sec.-ft. 


Sept. 11 


D.W. Murphy 




O0.4 


Apr. 9 


W. V.Hardy 


4.30 


49 


Nov. 21 


C.H.Lee 


. 3.54 


1.1 


25 


do 


4.10 


26 


Dec. 10 


....do 


3,62 


2.5 


May 18 


do 


3.82 


18 


1906. 
Jan. 6 








30 


do 


3.68 


15 


W. V. Hardv- 




. 3.62 
. 3.79 
. 3.68 
. 4.60 
. 4.50 


2.7 
9.3 
4.8 
115 
96 


June 14 

23 

July 23 

Dec. 15 

31 


do 

do 

W.A.Larab 


3.52 
3.30 
3.30 
3.29 
3.27 


11 


23 

Feb. 4 

15 

16 


do 

do 

do 

do 








2.5 
2.5 


W.V.Hardy 


4.7 


do 


3.3 


16 


do 








. 4.40 


75 


1908. 

Jan. 15 
26 
27 
28 

Feb. 11 
11 
11 
12 
22 
24 

Mar. 3 








16 


do 

do 

do 

do 

do 

do 








. 4.30 
. 4.20 
. 4.10 
4.00 
3.90 
. 3.88 


62 
51 
46 
32 
20 
10.7 


W V Hardy . 


3.41 
3.50 
3.41 
3.60 
3.50 


5 9 


16 

17 

19 

Mar. 10 


do 

do 

do 

do 

do 

do 

do 

do 

do 

do 


10 
7.9 
13 
12 


Apr. 5 
6 

18 
20 

May 8 
June 19 


do 

do 

do 

do 

do 

C. H. lee. 








. 4.85 
. 4.65 
. 4.27 

- 4.20 

- 4.05 
3,60 


81 
74 
37 
35 
24 
4.3 


3. GO 
3.82 
3.49 
3.50 
3.52 


17 

36 

9.8 
12 

9.4 


Aug. 7 


R.S. Hawlev. 






. 3.16 
. 3.15 
. 3.20 
. 3.48 


1.1 
1.1 

4.4 
12.7 


11 

20 

22 

Apr. 3 


do 

do..... 

do..., 

do 


3.50 
3.42 
3.43 
3^^ 44 




Oct. 9 


W. F.Martiii. 






9.1 


Nov. 28 


W. V. Hardy 






4.2 


Dec. 13 


do :.. 






4.3 

4.7 


1907. 








13 




3.44 


3.7 


Jan. 4 


W.V.Hardy 


. 3.58 


9.60 


28 




3.33 


4.0 


12 


do.... 






. 4.00 


49 


May 7 




3.32 


4.9 


^ 13 


do 






. 4.10 


49 


13 


ao — 


3.32 


5.0 


Feb. 6 


do 






. 4.00 


26 


27 


do 


3.16 


1.8 


9 


do 






. 3.90 


22 


June 13 


do 


3.10 


1.1 


25 


do 






. 4.12 


27 


July 7 


do 


2.98 


.36 


« 28 


do 






4.08 


25 


Nov. 16 


do 


3.11 


.78 


Mar. 7 


do 






. 4.80 


95 


Dec. 8 


do 


3.21 


1.5 


19 


do 








. 4.20 


43 


19 


do 


3.21 


1.4 



a Weir measurement. 



46 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Discharge measurements for Sweetwater River near Descanso, Galif., for 1905-1918 — 

Continued. 



Made by— 



W. V. Hardy. 

do... 

do... 

do... 

do... 

do... 

do... 

Hardy and 



Clapp 



W.V.Hardy. 
R. E.Haines.. 



W. V. Hardy 

do... 

do... 

do... 

do... 

do... 

do... 

do... 

do... 

do... 

do... 

do... 

.....do... 
.....do... 

do... 

do 

C.C.Jacob... 
W. V. Hardy 



W. V. Hardy 

do 

.....do 

do 

F. C. Ebert.. 



F. C. Ebert 

do.... 

do.... 

do...- 

do.... 

do.... 

do.... 

do.... 

.....do.... 

do... 

do.... 



F. C. Ebert 

do 

H. D.McGIashan.. 

F.C. Ebert 

do 

do 



F.C. Ebert.... 
W. E. Keenan. 
F.C. Ebert.... 
H. D.McGIashan. 
F.C. Ebert. 

do... 

do... 




Gage 
height. 



Feet. 
3.9 
4.8 
4.4 
4.6 
4.08 
4.2 
4.3 
4.1 
4.1 
3.75 
3.64 



4.20 
4.10 
3.95 
3.93 
3.94 
3.92 
3.88 
3.86 
4.02 
4.12 
4.10 
4.08 
3.98 
3.92 
3.84 
3.68 



3.70 
4.12 
3.85 
3.77 
3.58 



3.62 
3.82 
3.73 
4.12 
4.14 
4.12 
4.12 
3.74 
3.78 
3.76 
3.64 



3.70 
4.15 
3.87 
3.61 
3.46 



3.89 
3.89 
3.91 
3.67 
3.52 
3.58 
3.24 
3.23 
.80 
.82 



Dis- 
charge. 



See.-ft. 
15.1 
12.4 
76 
81 
27 
39 
49 



9.8 
7.8 



32 

22 

12 

13 
9.2 
8.8 
6.7 
7.6 

17 

20 
6.7 
5.7 
4.6 
3.4 
2.4 
1.2 
.34 
1.3 



24 
4.6 
2.3 
a. 7 



3.2 
1.9 

14 

15 
9.1 

10 
.8 
1.6 
1.9 



2.4 
12 
6.3 
1.6 
.4 
.07 



10 
4.4 
1.8 
2.6 
6.05 
6.05 
1.7 
1.8 



1915. 
Jan. 27 
Feb. 1 

4 

5 
Mar. 5 

5 

29 

Apr. 4 

May 18 

July 8 

8 
Aug. 13 
Sept. 18 
Oct. 6 
Dec. 7 

1916. 
Feb. 6 

18 
19 

Mar. 13 
18 
19 

Apr. 13 
22 
24 

May 7 
8 

June 11 
17 



July 


16 


Aug. 


13 




15 


Dec. 


14 


1917. 


Jan. 


?3 


Feb. 


14 




19 




20 


.Mar. 


13 




28 


Apr. 


15 




16 




16 




16 




17 




17 




18 


May 


23 


June 28 


Dec. 


22 



1918. 

Jan. 1 

9 

13 

27 

Feb. 11 

20 

22 

Mar. 7 



13 
19 
19 

May 7 



Aug. 22 



Made by- 



F. C. Ebert 

do 

do 

do 

do 

do 

.....do 

do 

do 

do 

do 

K.W. Dav 
F. C. Ebert 
R. W. Dav. 
F. C. Ebeft 



F. C. Ebert 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

R. W. Day, 

do.. 
F.C. Ebert 

.do 

.do..... 
.do 



...do 

"[ido!!!!;;!!!!!!!!!;;! 

....do 

....do 

McGlashan and Ebert. 

...do 

....do 

F. C. Ebert 


....do 

...do 

D. A. McClung 


F.C. Ebert 



Ebert and Ellis 
H.D.Ellis.. 

do 

do 

.....do 

do 

do 

do 

do 

F.C. Ebert. 
H.D.Ellis.. 

.....do 

do 

F.C. Ebert. 
H. D. Ellis.. 
F.C. Ebert. 



height. 



Feet. 
.88 
1.53 
1.67 
1.61 
1.93 
1.91 
1.47 
1.36 
1.92 
1.15 
1.15 
1.09 
.94 
.92 
1.08 



1.50 
1.45 
1.00 
1.04 
.88 
.78 
.79 
.75 



.50 
1.00 
.82 

.82 
.87 
.67 
.75 
.20 



.40 
.52 
.51 
.69 
.58 
.54 
.82 
1.16 
1.72 
1.00 



-.20 
.00 
.46 
.17 
.12 
.17 
.54 
.27 
.56 
.25 
1.52 
1.41 
1.65 
.67 
.46 
-0.16 



Dis- 
charge. 



Daily discharge, 



SWEETWATER RIVER BASIl^^T. 47" 

\ second-feet, of Sweetwater River near De?canso, Calif, for 1907-1918. 



3.0 
3.0 
3.0 
3.0 
3.0 

4.1 
4.1 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
12 

8.9 

5.3 
5.3 
4.1 
4.1 
4.1 

4.1 
5.3 

7.7 
7.7 
6.5 

5.3 
5.3 
4.1 
4.1 
3.0 
3.0 



Nov. Dec. Jan. Feb. Mar. Apr. 



1.9 
1.9 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
1.9 



1.9 
3.0 
3.0 
3.0 

6.5 
5.3 
4.1 
4.1 

6.5 

5.3 
4.1 
4.1 
4.1 
4.1 

4.1 
4.1 
4.1 
4.1 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
4.1 
4.1 



3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
10 
6.0 

3.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
6.0 

8.0 
12 

10 
8.0 

13 

11 
7.0 
7.0 



June. July. Aug. Sept. 



15 

13 
12 

10 
12 
13 
10 

8.9 

7.7 
7.7 
7.7 
7.7 
7.7 

7.7 
7.7 
7.7 
7.7 
6.5 

6.5 
6.5 
6.5 
6.5 



6.0 
6.0 
6.0 
6.0 
5.5 

5.3 
5.3 
5.3 
5.5 
6.0 

6.0 

5.8 
5.8 
5.8 
5.8 

5.8 
5.8 
5.8 
5.5 
4.8 

4.6 
4.1 
3.7 
3.7 
3.7 

3.9 
3.9 
3.9 
3.7 
3.7 
3.4 



48 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Sweetwater River near Bescanso, Calif., for 1907-1918 — 

Continued. 



Day. 



Apr. 



July. 



1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.5 

2.0 
1.5 
1.5 
1.5 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 
1.0 



1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 



1.0 
1.0 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 



1.5 
1.5 
1.5 



1.5 
1.5 
1.5 
1.5 
1. 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 
1.5 



1.4 
1.4 
1.4 
1.4 

1.4 
1.4 
1.4 
l.S 
2.2 



2.7 
9.5 
18 
4.4 

3.2 
3.2 
2.7 
2.2 
2.2 



11 
506 



13 
11 
18 
29 
21 

18 
18 
100 
61 
55 

117 
156 
177 
108 
91 

75 
61 
55 
49 
44 

145 
115 

89 
60 
31 

2.7 
2.2 

2.2 



1.7 
1.4 
1.4 
1.1 



3.2 
4.4 
4.4 
29 

25 . 

25 

25 

21 

21 

21 
21 
21 
21 
21 



21 
39 
44 



75 

166 
126 
117 

108 
108 



91 
75 



34 
34 
29 
29 
29 

29 
29 
29 
29 
29 

29 
25 
21 
21 
21 

18 
18 
18 
15 
13 



9.5 
9.5 
9.5 



9.5 
9.5 
9.5 

8.0 
8.0 

8.0 
8.0 
8.0 
8.0 
8.0 

7.0 
7.0 
7.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
.5.2 
5.2 
5.2 

5.2 
5.2 
5.2 
4.4 
4.4 



4.4 
3.8 
3.8 
3.8 
3.8 

3.8 
3.8 
3.8 
3.8 
3.8 

3.8 
3.8 
3.8 
3.8 
3.8 

3.8 
3.8 
3.8 
3.8 
3.8 



4.4 
4.4 
3.8 
3.8 

3.8 
3.5 
3.8 
3. J 
3.8 
3.8 



3.2 
3.2 
3.2 
3.2 
3.2 

3.{ 
3.8 
3.8 
3.8 
3.8 



3.8 
3.8 
3.8 
4.4 



3.8 
3.8 



3A 

3.8 



3.8 
3.8 



3.8 
3.8 
3.8 
3.8 
3.8 

3. J 
3.8 
4.4 
5.2 
6.0 

6.0 
6.0 
6.0 



8.0 
6.0 
5.2 
5.2 
4.4 

4.4 
4.4 
4.4 
4.4 
4.4 

15 

11 
8.0 
7.0 
6.0 



6.0 
5.2 
5.2 
5.2 
6.0 

6.0. 
6.0 
6.0 
91 

29 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
5.2 
4.4 
3.2 
II 



9.5 
9.5 
9.5 



116 
138 



85 
75 



50 
32 
32 
30 
22 

20 
20 
19 
18 
17 
16 



19 
19 
16 



15 
15 



14 
13 
13 
13 
13 

13 
13 
12 
16 

22 



11 
10 



10 
10 
10 
10 
9.0 

S.O 
8.0 
8.0 
S.O 
8.0 

8.0 
7.0 
7.0 
8.0 
9.0 

9.0 
10 
11 
10 
10 

9.0 
11 
12 
10 
17 

21 
21 
39 



9.0 
9.0 
9.0 
8.0 
8.0 

7.0 
7.0 
6.0 
6.0 
5.0 

5.0 
5.0 
5.0 
6.0 
6.0 



6.0 
6.0 
7.0 
7.0 
7.0 

6.0 
6.0 
6.0 
6.0 
5.0 



4.2 
4.0 
3.9 



3.; 
3.0 
2. J 

2.8 
2.i 
2.3 



2.3 
2.2 
2.2 
2.2 
2.0 



1.7 
l.( 
1.5 
1.3 
1.2 

1.1 
1.1 
1.1 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
.9 



.7 
.7 
.7 
.7 
•7 



.7 
.7 



.7 
.5 



SWEETWATER RIVER BASIN. 



49 



Daily discharge, in second-feet, of Sweetwater River near Descanso, Calif,, for 1907-1918 — 

Continued. 



Apr. 



July. 



.1 

.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 



2.5 
2.0 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 



1.. 
1.5 
1.5 
1.5 
1.5 
1.5 



1.5 
1.5 
2.0 
1.5 
1.5 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
3.0 
2.0 
4.0 
3.0 

1.3 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 

1.; 

1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 



2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
3.0 
5.0 

4.0 
3.5 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 
3.0 



3.7 
3.0 
4.0 

3.7 
2.0 
1.8 
1.6 
1.4 

1.4 
1.2 
1.2 
4.0 
4.0 

2.6 
2.0 
2.4 
2.2 
2.0 
2.2 



107 

50 

69 
182 
182 

182 

182 
8.0 
6.0 
6.0 

16 
26 
29 



146 
76 



14 

18 
16 
14 
11 

8.0 
7.0 
6.0 
7.0 
10 

15 
15 




11 
10 
8.9 



19 

17 
14 



22 
17 
10 



6.1 
5.7 
5.7 

5.7 
5.0 
5.0 
5.0 
5.0 

5.0 
5.0 
4.2 
3.5 
3.5 

4.6 
5.4 
5.0 
5.0 
4.6 



4.2 
3.8 
3.4 
3.1 
2.S 



l.( 
1.6 

1.1 

1.6 
1.1 
1.1 
l.( 
1.1 



1.1 
1.2 
1.2 



1.4 
1.3 
1.2 



142131° 



.7 

-21- 



1.2 
1.4 
1.2 



.9 
.9 
.9 



1.4 
1.2 



1.1 
1.1 
1.1 
1.1 
1.4 

1.2 
1.2 
1.5 
2.5 
1.6 
1.4 



1.5 
12.6 

2.7 



380 
209 
20 



12 
20 
12 

7 

.5.4 
5.4 
5.4 
12 

9.8 

12 

12 
7.0 
5.4 



31 
20 
16 
16 



-wsp 447- 



27 
22 
16 
16 
16 



12 
12 
12 



12 
12 

8.5 
8.5 
8.5 

8.5 
8.5 

57 

41 

16 

12 
12 

8.5 
6.7 
4.9 



6.7 
6.7 



6.7 
6.7 
6.7 
6.7 
6.7 

6.7 
6.7 
6.7 
6.7 
6.7 
4.9 



4.9 
3.8 
3.8 



2.7 
2.7 
2.7 
2.7 

2.7 
2.7 
2.2 
2.2 
2.2 

2.2 
2.2 
2.2 

1.7 
1.7 



1.7 
1.7 
1.7 
1.7 

1.7 
1.7 
1.7 
1.7 



1.] 
1.1 



50 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Siveetwater River near Descanso, Calif, for 1907-1918— 

Continued. 



Day. 



Apr. 



May. 



1 
1.5 

2 
2 
2.5 



7 
7 
5.5 

4.5 

3.5 

3 

3 

3 



4.5 

3.5 

3 

3 

3 

3 
3 
3 
3 
3 



16 
16 
12 



4.5 
4.5 
4.5 
4.5 
4.5 



8.5 
8.5 
12 



16 
22 
27 
16 



12 
12 
12 

12 
12 



20 
16 
13 
10 
10 
10 



9.5 

9 

9 

8.5 



7.5 

7.5 

7 

6.5 
6.5 



5 
5 

4.5 
4 



3.5 

3.5 

3 

3 

3 



1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 



1 
1 

1 
1 

1 

1 

1.5 

1.5 

1.5 

1 



.05 
.05 

.05 
.05 
.05 
.05 



350 
45 
23 
13 



5.5 
4.5 
4.5 



3.5 

3 

3 

3 

3 



3.5 
3.5 



380 
148 
115 
14 



36 
27 



5.5 
5.5 



5 

4.5 

4.5 

4.5 

4 

4 

3.5 
3.5 
3 



12 
9.5 



14 
9.5 



9.5 
9.5 
9.5 



2 
2 
2 
2 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 



.5 
.5 



.05. 
.05. 

.05. 
.05. 
.05. 
.05. 
.05. 



SWEETWATER RIVER BASIN. 



51 



Daily discharge, in second-feet, of Sweetwater River near Descanso, Calif, for 1907-1918- 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1914-15. 

1 

2 


0.1 

.2 
.2 
.3 
.3 

.4 

.4 
.5 
.5 
.5 
.5 

.5 
.5 
.5 
.6 
.6 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 
.8 

1.3 
1.1 
1.1 
1.1 
1.1 

1.1 
1.1 
1.1 
1.1 
.9 

.9 
.9 
.9 

.8 
.8 

.8 
.9 
.9 
.9 
.9 

.9 
.9 
.9 
1.0 
1.1 

1.1 
1.1 
1.1 
1.1 
1.2 
1.2 


0.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
1.2 
1.0 

1.0 
.9 
.9 
.9 
.9 

.9 
.9 
.9 
.9 
.9 

.9 
.9 
.9 
.9 
.9 

.9 
.9 
.9 
.9 
.9 

1.3 
1.3 
1.3 
1.3 
1.3 

1.4 
2.1 
1.5 
10 
204 

20 
1.4 
1.0 
.9 

.6 

.6 
.6 

.7 
.7 
.7 

.7 
.7 
.7 
.7 
.7 

.7 
.9 
1.0 
1.0 
1.0 


1.0 
1.0 
1.0 
1.0 
.9 

.9 

.9 

1.0 

r 1.0 

1.0 

1.0 
1.6 
1.2 
1.2 
1.2 

1.3 
2.0 
1.7 
1.4 
1.5 

1.4 
1.3 
1.2 
1.2 
1.2 

1.2 
1.2 
1.1 
1.0 
1.0 
1.0 

1.0 
1.0 
1.1 
7.5 
11 

4.7 
3.3 
2.7 
2.7 
2.7 

2.3 
2.3 
2.5 

12 

16 

12 
9.9 
5.5 
4.7 
3.9 

3.9 
3.5 
3.3 
2.9 
2.5 

2.3 
2.3 
2.3 
5.5 

10 

13 


1.0 
.9 
.9 
1.2 
1.1 

1.1 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

LO 
1.0 
1.0 
1.0 
1.0 

1.0 
9.0 
4.0 
3.2 

3.7 

3.2 
2.5 
7.9 

220 

234 
62 

15 
13 


50 
326 
121 
46 
34 

30 
28 
24 
22 
360 

769 
170 
108 
81 
73 

76 
93 
68 
62 
108 

95 
86 
65 
55 
78 

61 
52 
51 


95 
108 
90 
95 
95 

84 
75 
70 
65 
62 

60 
58 
55 
47 
42 

39 
35 
31 
29 

28 

27 
27 
27 
27 
27 

27 
25 
24 
25 
25 
24 

133 
127 
111 
105 
129 

100 
80 
82 
79 
74 

66 
62 
59 
56 
53 

53 
53 
52 
47 
55 

76 
123 
144 
131 
119 

111 

98 
84 
76 
71 
72 


22 
21 
21 
19 
19 

19 
19 

18 
18 
18 

18 
18 
19 
21 
24 

21 
22 
24 
21 
21 

30 
83 
40 
37 
35 

29 
28 
50 
88 
127 

73 

74 
71 
66 
58 

57 
57 
56 
53 
50 

51 
61 
49 
47 

44 

42 
38 
37 
36 
38 

36 
33 
31 
31 
29 

28 
28 
27 
27 
26 


109 
194 
278 
480 
990 

524 
310 
293 
234 
170 

141 
137 
121 
109 
95 

78 
65 
106 
75 
71 

62 
57 
50 

47 

46 

45 
44 
42 
41 
40 
39 

28 
26 
26 
25 
25 

25 
25 
22 
22 
22 

21 
21 
20 
20 
20 

20 
20 
20 
18 
18 

18 
18 
18 
18 
18 

18 
17 
17 
17 
17 
17 


37 
36 
35 
34 
32 

31 
30 
29 
27 

26 

25 
24 
22 
21 
20 

19 
17 
16 
15 
14 

12 
11 
10 
9 

8 

7 
7 
7 
7 
6.5 

16 
15 
15 
13 
12 

12 
11 
11 
11 
11 

15 
15 
10 

7 
6 

5 
5 
5 

4 
3.5 

3.5 

4.5 

4.5 

5 

5 

4.5 
4.5 

4.4 
4.4 

4.4 


6.5 

6.5 
6.5 
6 
6 

6 

6 

5.5 

5.5 

5.5 

5.5 

5 

5 

5 

5 

4.5 
4.5 
4.5 
4.5 
4 

4 

4 

4 

3.5 

3.5 

3.5 

3.5 

3 

3 

3 

3 

4.7 
4.9 
4.9 
4.6 
4.4 

4.4 
4.4 
4.4 
4.4 
4.4 

4.4 
4.4 
4.4 
13 

7.6 

6.1 
4.9 
4.4 
3.5 
3.8 

3.5 
3.0 
2.6 
2.6 
2.2 

2.2 
2.2 
2.2 
2.2 
2.0 
1.9 


2.5 
2.5 
2.5 

2.5 
2 

2 

2 
2 

1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1 

1 
1 

1 
1 

1 

1 
1 
1 
1 
1 

.9 
.9 
.9 
.9 
.9 
.9 

1.7 
1.5 
1.1 

.8 
.6 

.6 
.7 

.7 
.8 
.8 

.8 
.8 
.8 
.6 
,6 

.6 
.6 
.6 
.6 
.6 

.5 
.3 
.2 
.1 
14 

4.4 
.9 
.4 
.2 
.1 
.1 


0.9 
.9 


3 


.9 


4 


.9 


5 


.9 


6 


.9 


7 


.9 


8 


.9 


9 


.9 


10 


.9 


11 


.8 


12 


-8 


13 . .. 


.8 


14 


.8 


15. 


.8 


16 


8 


17 


g 


18 


.8 


19 


.8 
.7 


20 


21 • 


.7 
.6 
.6 
.6 
1.1 

1 2 


22 


23 


24 


25 


26.. . . 


27 


1 4 


28 


1 4 


29 


1 4 


30 


1 4 


31 




1915-16. 
1 




2 . 




3 




4 








5 








6 


""id 

21 
137 

502 

2,060 

1,620 

769 

618 

570 

642 

2,420 


179 
167 
179 
129 
123 

115 
111 
109 
105 
102 

98 

88 
77 
82 
77 

77 
71 
69 
66 
66 

74 
84 
79 
111 




7 




8 




9 




10 




11 




12 




13 




14.. . . 




15.. 





16 




17 




18 




19 




20 




21 




22., 




23 




24 




25 




26 . 




27 




28 




29 




30 




31 









52 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Daily discharge, in second-feet, of 8weetwater River near Descanso, Calif ., for 1907-1918 — 

Continued. 



Day, 


Oct. 


Nov. D( 


.c. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1916-17. 
1 


2 
3 
2 
2 
1 
10 

I 

8 

6.5 

4.9 

4.2 

3.1 

2.9 

2.7 

3.1 

2.7 

2.5 

2.5 

2.3 

1.9 

2.1 

2.7 

3.1 

2.7 

2.5 

2.3 

2.1 

1.9 

.9 
.9 

.8 
.8 
.9 
.9 
.9 
.9 
.9 
.9 
.8 
.8 
.8 
.9 
.9 
.9 
.9 
.8 
.8 
.8 
.9 
.8 
.8 
.8 
.8 
.8 
.8 
.8 
.8 
.8 
.8 


i;9 1 
2.1 1 

2.3 1 
1.9 1 
1.9 1 
1.7 1 

1.4 1 
1.4 1 

1.4 1 

1.5 1 
1.5 1 
1.4 1 
1.4 2 

1.4 1 
1.3 1 
1.3 1 

1.3 1 

1.5 1 
1.5 1 
1.5 1 
1.5 1 

1.4 1 
1.4 1 
1.4 4 
1.4 6 
1.4 6 
1.4 7 
1.4 7 
1.4 8 
1.4 9 

9 

.8 
.8 
.8 
.8 
.8 
.9 
.8 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
. .9 


.4 
.4 
.9 
.4 
.4 
.3 
.3 
.5 
.5 
.4 
.9 
.9 
.3 
.5 
7 
9 
9 
9 
7 
9 
7 
5 
9 
2 

.5 
.5 

.5 

9 

9 
9 
9 
9 
9 
8 
8 
9 
9 
9 
9 
8 
8 
8 
9 
8 
8 
8 
8 
8 
8 
9 
9 
9 
9 
9 
8 
8 
8 
9 


9 

7 
26 

7.5 

7.5 

9 
13 
10 
10 

8.5 

7.5 

6.5 
17 
13 
15 
12 
16 
12 
36 
33 
18 
19 
18 
13 
10 
11 
11 

9.5 
10 

8 

7.5 

.4 
.5 
.6 
.7 
.8 
.8 
.8 
.8 
.9 
.9 
.9 
.9 
8 

3.6 
3.2 
3.2 
2.8 
2.5 
2.2 
2.2 
2.2 
2.1 
2.2 
2.4 
2.2 
2.7 
3.6 
3.8 
3.2 
3.2 
3.0 


7.5 

7.5 

7.5 

7.5 

7.5 

7.5 

7 

7.5 

7 

8 

7.5 

7.5 

9 

8 

7 

6.5 

8 

18 

18 

21 

28 

65 
149 

72 
103 

59 

40 

37 

....... 

3.2 
3.4 
3.8 
3.6 
3.0 
1.4 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 
6.5 
6.5 
6 
7 
19 
8.5 
7 
7 
6 
5 
4.7 


27 
25 
21 
22 
20 
21 
25 
19 
21 
22 
19 
18 
19 
21 
21 
19 
19 
19 
19 
17 
15 
15 
14 
15 
14 
13 
13 
12 
13 
12 
12 

4.8 
5 
5 
5 

4.8 

7 

22 

12 

10 
630 
910 
130 
100 

80 

60 

40 

24 

82 

40 

28 

36 

40 

40 

40 

36 

35 

35 

34 

34 

33 


12 
12 
12 
12 
12 
13 
12 
13 
15 
15 
13 
13 
13 
13 
13 
127 
78 
43 
24 
20 
19 
19 
17 
13 
12 
12 
12 
12 
12 
11 

31 
31 
30 
30 
29 
28 
28 
27 
26 
26 
24 
20 
17 
15 
14 
15 
14 
14 
14 
14 
13 
13 
13 
13 
13 
13 
11 
10 

9.5 

7 


12 

12 

12 

11 

10 

10 

10 

12 

10 

10 
8.0 
7.0 
7.5 
7.0 
8.0 
7.5 
8.0 

12.0 
6.5 
6.5 
8.5 
9.0 

11 

14 

10 
9 

8.5 
6 
5 

5.5 
6 

5.5 
4.0 
3.0 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.6 
2.7 
2.8 
2.8 
3.0 
3.1 
3.2 
3.3 
3.4 
3.5 
3.6 
3,7 
3.8 
3.9 
4.0 
4.1 
4.2 
4.3 
4.4 
4.4 
4.0 
3.7 


5.0 

5 

4.9 

5.5 

6 

5 

5.5 

5.5 

4.9 

4.6 

4.3 

4.3 

4.0 

4.3 

3.7 

3.7 

3.6 

3.6 

3.6 

3.4 

3.2 

3.2 

3.2 

2.8 

2.4 

2.2 

1.9 

1.7 

1.4 

1.4 

3.5 
3.7 
3.5 
3.5 
3.5 
3.5 
3.5 
3.5 
4.0 
4.0 
4.0 
4.0 
4.0 
4.0 
4.0 
35 
2.0 
1.8 
3,0 
.7 
.5 
.8 
1.2 
1.8 
2.4 
2.9 
3.2 
3.2 
3.7 
4.0 


1.4 
1,4 
1.4 
1.5 
1.5 
1.4 
1.4 
1.4 
1.3 
1.2 
1.2 
1.2 
1.3 
1.2 
1.2 
1.2 
1.1 
1.1 
1.1 
1.1 
1.1 
1.0 
1.1 
1.1 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 

4.0 
4.4 
4.4 
4.0 
3.5 
3.0 
3.0 
3.2 
2.4 
2.2 
1.6 
1.0 
.8 
.5 

'.3 
.3 
.3 
.3 
.3 
.3 
.3 
.3 
.3 


1.0 
1.0 
1.0 
1.0 
.9 
1.0 
1.0 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.8 
.8 
.8 
.8 
.8 
.8 


0.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.9 
.8 
.8 
.8 
.8 
.8 


2 


3 . 


4 




6 


7.. 


8 


9 


10 


11 


12 


]3.. 


14 


15 


16 


17.. 


9 


18 


.8 


19 


.8 


20. 


.8 


21 


.8 


22 


.8 


23 


.8 


24 


.8 


25 . ... 


.8 


26 


.8 


27 


.8 


28 . 


.8 


29 


.8 


30.. 


.9 


31 




1917-18 
1... 




2 






3... 






4 






5 






6 






7 






8 






9 






10 






11 






12 






13 






14 






15 






16 






17 






18 






19 






20 






21 






22 






23 






24. 






25 






26 






27. .. 






28 






29 






30 






31 













Note: Daily discharge determined as follows: 1909: Jan. 1 to Dec. 31, from rating curves well defined 
bel'ow 130 second-feet; Feb. 22-25, Mar. 1-2, discharge interpolated. 

1910: Jan. 1 to Feb. 14, from poorly defined rating curves; Feb. 15 to Mar. 2, shifting-control method; 
Mar. 3-12, from poorly defined curves; Mar. 13 to Apr. 25, by shifting-control method; Apr. 26 to Oct. 15, 
from fairly well defined curves; Oct. 16 to Dec. 31, by shifting-control method. 

1911-12: Jan. 1 to Mar. 7, 1911, by shifting-control method; May 1-8, 1911, interpolated; Mar. 8, 1911, to 
Mar. 8, 1912, from fairly well defined curves; Mar. 9, to Apr. 14, 1912, Apr. 15 to June 12, and June 13 to Sept. 
30, from fairly well defined rating curves. 

1912-13 and 1913-14: Discharge determined by shifting-control method and from rating curves covering 
short periods. July 1 to Aug. 16, 1913, water standing in pools; no discharge. Oct. 1 to Dec. 31, 1913, and 
July 1 to Sept. 30, 1914, stream practically dry. 

1914-15: Rating curve used Oct. 11, 1914, to May 24, 1915, well defined below 100 second-feet. Records 
June to September, 1915, roughly approximate. 

1916: No record Jan. 3-12 and Jan. 24toFeb. 5. Gage not read Feb. 17 and July 1; discharge interpolated 
Practically noflow Sept. 1-30; Oct. l-5,discharge estimated. Gage not read Nov.21-23 : discharge interpolated. 

1917-18: Gage not read Oct. 28 to Nov. 3, 1917, Jan. 2-5, 1918, June 10-15, 1918, and July 28-31, 1918, 
discharge interpolated. No record during August and September, 1918. 



SWEETWATEK EIVEE BASIN. 53 

Monthly discharge of Sweetwater River near Descanso, Calif., for 1906-1918. 



Discharge in second- 



Run-.off 
(total in 
acre- 
feet). 



Discharge in second- 
Jeet. 



Maxi- Mini- 
mum, mum. 



1906. 

January 

February... 

March 

April 

May 

June 

July. 

August 

September. . 



The period . 



1906-7. 

October 

November... 
December . . . 

January 

February — 

March 

April 

May 

June 

July 

August 

September... 



The year. 



1908-9. 

October 

November.. 
December . . 

January 

February — 

March 

April 

May 

Jime 

July 

August 

September. . 



44 
86 
1,250 
84 
36 
15 
2.6 
4.6 
5.8 



The year 

1907-8. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 



The year . . . 

1909-10. 

October 

No\?ember 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year... 



134 
63 
123 
95 
26 
15 
6.0 
3.7 
2.8 



12 
3.0 
6.5 

13 

34 

26 

16 

11 
1.5 
.4 



2.0 
1.0 
1.5 

506 

177 

166 
91 
11 
9.5 
4.4 
8.0 
6.0 



506 



91 
479 
22 
39 
25 
7 

2.3 
.9 
.4 



2.0 
4.2 



2.6 
1.2 
1.1 
1.0 



22.3 
180 
48.5 
21.6 
7.0 
1.8 
1.8 
1.5 



1.0 
1.1 
4.4 
9 

18 

24 

23 

15 
6.5 
3.4 
2.3 
2.6 



3.0 
10.1 
56.7 
28.6 
65.0 
39.8 
19.6 
9.8 
5.0 
2.9 
2.6 



1.0 



3.0 
1.9 
1.9 

2 

6 

5 

3 

1.5 
.5 
.4 
.4 

1.0 



4.5 
2.6 
3.8 
4.9 
13.8 
10.2 
5.4 
3.6 
1.0 
.4 
.5 
1.8 



4.38 



13 
9.5 

4.4 



1.0 
1.0 
1.5 

24.0 
61.6 
37.4 
35.2 
10.9 
6.65 
3.87 
4.88 
4.00 



3.2 
3.8 
5.2 

16 

10 
7 
5 
2.3 



3.74 
6.08 
12.8 
65.1 
13.9 
12.9 
11.6 



.63 
.25 



534 

1,240 

11,100 

2,890 

1,330 

418 

112 

108 

90 



17,800 



68 

177 

121 

3,490 

1,590 

4,000 

2,370 

1,210 

583 

307 

178 

155 



14,200 



277 
155 
234 
301 
794 
627 
321 
221 
60 
25 
31 
107 



61 

60 

92 

1,480 

3,420 

2,300 

2,090 

670 

396 

238 

300 

238 



11,300 



230 
362 
787 
4,000 
772 
793 
690 
287 
83 
39 
15 
12 



1910-11. 

October 

November... 
December... 

January 

February — 

March 

April 

May 

June 

July 

August 

September... 



The year. . . 
1911-12. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 



5 

168 

182 

146 
26 
4.2 
1.1 



2.5 
1.2 
.8 
380 
94 
57 
4.9 
1.4 



The year . . 
1912-13. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year. . 
1913-14. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year. . 

1914-15. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 



380 



2 

1.5 

1 

.16 
52 
27 

9.5 

3 

1 



3 
43 



52 



350 
380 
16 



The year . 



1.2 
2.0 

234 

769 

108 

127 

990 
37 
6.5 
2.5 
1.4 

990 



0.05 
1 



3 

4.5 

3 

1 

.4 
.0 
.0 



0.955 
1.51 

2.66 
8.05 
46.2 
24.4 
8.95 
1.81 
.63 
.57 
.46 
.47 



L06 



.62 

.76 

1.14 

.90 

.80 

33.8 

30.4 

10.5 

2.45 

.58 

.43 

.62 



6.94 



.92 
3.51 
9.09 
12.2 

5.58 
1.48 
.70 


.84 
2.87 



2 

3 
.5 
.05 



.11 

17.8 
33.9 
7.0 
5.82 
3.19 
.205 
.05 
.05 
.05 



5.52 



1.18 
18.4 

114 
49.9 
31.7 

164 
19.8 

L40 
.91 



54 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORl^IA. 

Monthly discharge of Sweetwater River near Descanso, Calif., for 1906-1918 — Continued. 



1915-16. 

October 

November. . . 
December . . . 

January 

February 

March 

April 

May 

June 

July 

August 

September... 



1916-17. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 



Discharge in second- 
feet. 



Maxi- 
mum. 



l.c 

204 
16 



179 
144 

74 



10 
2.3 
9.5 

36 
149 

27 



Mini- 
mum. 



0.8 
.6 
1.0 



17 
3.5 
1.9 



1 

1.3 

1.3 



1.01 
8.69 
5.14 



102 
86.5 
45.1 
20.5 
8.24 
4.15 
1.20 
.00 



3.91 
1.52 
3.09 
13.2 
26.4 
18.1 
20.8 
9.02 



Rmi-off 
(total in 



feet). 



62 
517 
316 



5,320 
2,680 



490 
255 



240 
90.4 

190 

812 
1,470 
1,110 
1,240 

555 



1916-17. 

June 

July.... 

August 

September... 



The year . . 

1917-18. 

October 

November 

December 

January 

February 

March 

April 

May 

June. 

July 

August 

September 

The year . . 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



1.5 
1.0 



19 
910 



5.5 
35 



1.4 
1.0 



1.0 

4.8 



2.5 
.5 



Run-off 
(total in 
acre- 
feet). 



3.79 
1.19 
.900 
.843 



i.44 



.84 

.88 

.85 

2.17 

4.02 

82.8 

18.8 

3.42 

4.08 

1.42 

ol.OO 

si. 00 



73.2 
55.3 
50.2 



6, 110 



51.6 
52.4 
52.3 

133 

223 
5,090 
1,120 

210 

243 
87.3 
61.5 
59.5 



SWEETWATER RIVER NEAR DEHESA, CALIF. 

Location.— In NW. i NW. I sec. 20, T 16 S., R. 2 E., 1,000 feet below mouth of 
Lawson Creek and about 3 miles southeast of Dehesa, San Diego County. 

Drainage area — 112 square miles (measured on topographic maps). 

Elevation. — ^About 900 feet above sea level. 

Records available. — December 4, 1913, to July 31, 1916. 

Gage. — Bristol water-stage recorder on left bank 100 feet above control; vertical staff, 
in two sections, bolted to solid rock at same site. February 5, 1915, water-stage 
recorder was moved downstream to a point on left bank 5 feet above control. 
Original datum was maintained but gage readings differ on account of slope of 
water surface between the two sites. Water-stage recorder not in operation after 
April 10, 1915. Staff was destroyed by the flood on January 17, 191 6. March 19, 
1916, a new staff was installed at same site but at an independent datum. 

Discharge measurements.^ — Made from cable 200 feet below concrete control or by 
wading. Cable was destroyed by the flood of January, 1916 and was not replaced. 

Channel and control.— Sand overlying solid rock; shifting. Both banks are high 
and not subject to overflow. A concrete control, extending to bedrock, has been 
constructed. December 8, 1915, it was raised 1.33 feet. (See PI. V, B, p. 16.) 
This control was destroyed by the flood of January, 1916. 

Extremes of discharge. — 1913-1916: Maximum stage recorded, 15.5 feet January 
27, 1916 (discharge, 24,295 second-feet). Practically no flow August 12 to Octo- 
ber 31, 1915. 

Diversions. — About 0.3 second-foot is diverted for irrigation at Ellis ranch near 
Descanso. 

Regulation. — None. 



SWEETWATER EIVER BASIN. 



55 



Accuracy. — Stage-discharge relation not permanent, ilating curves for 1914 and 
1915 well defined except for extremely high andlow stages; curves for 1916 fairly 
well defined. Gage read to hundreths twice daily after April 10, 1915. Daily 
discharge ascertained by applying to rating table mean daily gage height deter- 
mined by inspecting recorder graph, or from staff gage readings; discharge for 
periods not covered by rating tables interpolated between measurements when 
change in stage was slight, or computed by shifting-control method. Records fair. 

Discharge measurements of Sweetwater River near Dehesa, Calif., for 1914-1916. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1914. 
Jan. 30 


Chas. Fulton 


Feet. 
0.90 
2.30 
1.80 
.80 
.75 
.68 

2.00 
1.70 
3.00 
2.75 
2.1 
1.93 
1.65 
2.00 
1.60 
1.01 
1.01 
.97 
1.25 
1.00 


Sec.-Jt. 
20 
179 
87 
10 
9.1 
5.5 

132 

69 
397 
316 
171 
130 

86 
138 

75 

35 

34 

32 

38 

15 


1915. 

July 9 
Dec. 8 
18 
18 
20 
23 
23 
28 
26 
29 

1916. 

Mar. 20 

30 

Apr. 7 

15 

22 

29 

May 5 

June 22 

July 21 


Covert and Fulton 

F. C. Ebert 


Feet. 
0.G3 
.23 
.23 
.23 
.17 
.20 
.20 
.18 
.18 
.22 

1.88 
2.03 
1.78 
1.63 
1.43 
1.28 
1.08 
.50 
.36 


aec.,>. 


Feb 22 


J F Covert 


3.9 


22 


Chas. Fulton 


J. B. Rainey 


7.2 


Mar. 7 


F C. Ebert 


C. F. Fulton 


6.8 


11 


Chas. Fulton 


H. D. McGlashan 

C. F. Fulton 


4.7 


25 


J. F. Covert 


4.7 




J. F. Covert. 


J. B. Rainey 


4.8 


1915. 
Jan. 31 


do 

do 

do 

J. B. Rainey. 


4.2 
4.0 


Feb. 5 
12 


do 


7.1 


12 
14 


do 

do 

do 

C. L. Fulton 


99 


17 

28 


do 

do 

do 

do 

do 

do 

do 

Sweetwater Water Co... 


96 
83 


Mar. 7 


Owen 


85 


15 


C. L. Fulton 


67 


Apr. 1 


F.C. Ebert 


59 


R.W.Day 


46 


5 


J. F. Covert 


14 


14 


C. L. Fulton -. .. 


7 1 


June 22 


do 





Daily discharge, in second feet, of Sweetwater River near Dehesa, Calif, for 1913-1915 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1913-14. 
1 








0.8 
1.1 
1.3 
1.3 
1.1 

1.1 
l.-S 
1.3 
1.4 
1.4 

1.3 
1.2 
1.4 
1.1 
1.3 

2.4 
6.8 
6.8 
10 
6.8 

5.0 
4.2 
4.5 
5.0 
5.5 

22 
281 
110 

24 

16 

15 


18 
16 
14 
12 
10 

10 
9.4 

8.4 
7.4 
7.4 

6.8 
6.5 

7.8 
8.7 
7.4 

6.3 
6.5 
9.4 
64 

87 

237 
207 

91 

57 

41 

28 
26 
26 


23 
20 
18 
17 
15 

12 
10 
10 
10 
10 

8.7 
8.1 
8.1 
8.1 
7.8 

7.4 
6.8 
6.8 
6.8 
6.8 

7.4 
8.1 
6.8 
6.3 
6.3 

9.7 
7.8 

10 
8.7 

14 

10 


6.8 
6.0 
6.0 
6.8 
6.8 

7.4 
6.8 
7.1 
9.4 
11 

11 

8.4 
6.8 
6.8 
6.8 

6.8 
8.1 

11 

11 

8.4 

7.8 
8.1 
10 
8.7 
8.1 

7.8 
6.8 

10 

10 

11 


14 
12 
11 
9.4 

8.1 

6.8 
6.8 
6.5 
6.8 
6.8 

6.5 
6.5 
6.3 
5.2 

5.8 

6.8 
7.4 
7.4 
6.3 
4.7 

4.2 
4.2 
4.2 
3.9 
3.9 

3.7 
3.4 
3.4 
3.2 
3.0 
2.5 


2.5 
2.5 
2.3 
1.7 
1.2 

1.5 
1.8 
2.5 
2.1 
1.7 

1.3 
1.0 

.8 
.7 
.5 

.4 
.3 
.3 
.3 
.3 

.3 
.3 
.3 
.3 
.3 

.2 
.2 
.2 
.2 
.2 


0.2 
.2 
.2 
.2 
.1 

!05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 
.05 


0.05 
.05 
.1 
.1 
.1 

.1 
.1 
.1 
.1 
.1 

.1 
.1 
.1 
.05 
.05 

.05 

.05 







.05 
.05 
.05 
.05 
.05 

.1 
.1 
.1 
.1 
.05 
.05 




2 










3 










4.- 






0.3 
.4 

.6 
.6 
.6 
.4 
.4 

.3 

.4 
.4 
.4 
.4 

.4 
.4 
.3 
.3 
.3 

.4 
.5 
.6 
.4 
.4 

.4 
.4 
.4 
.4 
.4 
.5 




5 








6 . 








7 








8 . 








9 








10 








11 








12. 








13 








14 








15 








16 








17 








18 








19. 








20 








21 








22 








23 








24 








25 








26 








27 








28 








29 








30 








31 









56 SURFACE WATER OF PACIFIC SLOPE, SOUTHER:tT CALIFORNIA. 



Daily discharge, in second-feet, of Sweetwater River near Dehesa, Calif., for 1913-1915- 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1914-15. 
1 




0.1 
.1 
.1 

.1 
.1 

2 
.2 
.2 
.2 
•2 

.3 
.3 
.4 
.4 
.4 

.3 
.3 
.3 
.3 

.4 

.4 
.4 
.4 
.3 
.3 

.3 
.3 
.3 
.3 
.3 


0.6 
.4 
.4 
.4 
.4 

.4 

.4 
.4 
.4 
.4 

.6 
.9 
.6 
.4 
.4 

.4 
.6 
1.1 
1.5 
1.4 

1.1 
.9 
.9 
.9 

1.1 

1.3 
1.4 
1.3 
1.2 
1.0 
1.0 


1.0 
1.0 
1.0 
1.0 
1.0 

1.3 
1.3 
1.4 

1.8 
1.5 

1.4 
1.4 
1.3 
1.3 
1.5 

1.5 
1.4 
1.3 
1.3 
1.4 

1.7 

6.5 
7.1 

4.7 
4.7 

5.2 
5 
10 
284 
302 
80 

7.5 
7.5 
7.5 

7.5 

7.5 


68 
202 
392 
140 

85 

79 
63 
55 
55 
219 

909 
369 
233 
154 
124 

124 
124 
104 
96 

148 

187 
124 
119 
103 
129 

116 
96 

87 


198 
240 
183 
172 
179 

156 
133 
114 
117 
122 

131 
119 
101 

87 
84 

81 
78 
75 
72 
70 

08 
66 
50 
50 

42 

41 
40 
39 
42 
39 
37 


39 
34 
36 

36 
32 

28 
27 
27 
29 
25 

30 
31 
36 
38 
31 

27 
29 
31 

27 

27 

39 
110 
52 

48 
46 

38 
36 
65 
115 
165 

95 
91 
95 
99 
95 

91 

88 
87 
82 
83 

83 
87 
82 
• 82 
80 

76 
74 
73 

72 

68 

62 
65 
63 
61 
59 

58 
58 
58 
57 
57 


140 
250 
3G0 
625 
1,290 

680 
405 
380 
305 
220 

185 
180 
IGO 
140 
125 

100 
85 
140 
100 
92 

81 
74 
65 
61 
60 

58 
57 
55 
53 
52 
51 

54 
52 
51 
50 

47 

46 
46 
46 
46 
46 

46 
46 
45 
44 
44 

41 

42 
42 
42 
46 

42 
42 
40 
39 
40 

37 
36 
35 
35 
35 
34 


49 
47 
45 
42 
40 

38 
36 
33 
31 
29 

27 
24 
22 
20 

18 

15 
15 
15 
15 
15 

15 
15 
15 
14 
13 

13 
12 
11 
11 
10 

33 
32 
30 
29 
29 

28 
26 
26 
24 
22 

22 
20 
15 
13 
12 

13 
13 
13 
13 
13 

13 
14 
11 
11 
11 

11 
9.0 

8.5 
8.0 
8.0 


9 
9 

8 
8 
7 

7 
6 
5 
5 
5 

4 
3 
3 
3 
3 

3 

3 

3 

2.5 

2.5 

2 
2 

1.5 
1.5 

1 

1 
.9 
.8 
.7 
.6 
.5 

9.0 

7.5 
7.5 
7.0 
7.0 

6.0 
4.9 
4.9 
3.6 
3.6 

4.9 
3.8 
6.0 
17 

18 

9.5 
7.5 
7.5 
7.0 
6.0 

5.5 
4.4 
3.8 
3.8 
3.8 

3.2 
3.0 
3.0 
3.0 
3.0 
3.0 


0.5 
.5 
.4 
.4 
.4 

.3 
.3 
.2 
.2 
.1 




2 






3 






4 






5 






C. 






7 






8 






9. 






10 






11 






12 








13 








14... 








15 








16. 








17 








18 








19 








20 








21 








22 








23 








24 








25 








26 








27 . . 








28.... . 








29 








30 








31 








1915-16. 
1 


0.1 
.1 
.1 
.1 
.1 

.1 
.1 
.1 
.1 
.1 

.1 

.1 
.1 
.1 

■' 

.1 








2 















3 














4 














5 










6 














7 














8 




""i.'b 


4 

4 
4 

4 
4 
4 












9 












10 












11... 












12 












13 












14. 












15 


9 












16 












17 


_ 1 
















18 1 1 


.'5 


7 

4.5 

4.5 












19 -1 






95 
108 

117 

121 
153 
137 

127 

119 
114 
110 
108 
104 
97 






20 


.1 










21 










22 










23.. 


.4 


5 










24 










25 -■ 


.4 












26 


4 










27 










28 














29 


.4 

.4 


7 
8 
7.5 










30 










31 





















Note.— 1914-15: Apr. 28 to May 5, 1914, water-stage recorder not operating satisfactorily, record some- 
whatuDcertain. Jan. 2&-31, 1915, no gage-height record, discharge estimated from record of flow at Des- 
canso; Apr. 15 to June 15, 1915, discharge estimated as 130 per cent of flow at Descanso; June 16 to Aug. 11, 
interpolated between measurements. Channel practically dry after Aug. 11. 

1915-16: Discharge Oct. 1, 1915, to Jan. 5, 1916, determined from rating curves covering short periods and 
by shifting-control method. No record as follows: Nov. 1-14, 16-21, 24, 26-28; Dee. 1-7, 16-17, 22, 24-25, 
27-28, 1915; Jan. 6 to Mar. 18, 1916. 



SWEETWATER RIVER BASIN. 57 

Monthly discharge of Sweetwater River near Dehesa, Calif., for 1913-1916. 



Month. 


Discharge in second- 
feet. 


Rnn-cff 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Run-oflE 
(total in 


Maxi- 
raiun. 


Mini- 
mvim. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1913-14. 
December 


0.6 
281 
237 
23 
11 
14 
2.5 
.2 
.1 


0.3 
.8 

6.3 

6.3 

6 

2.5 
.2 
.05 



0.42 
17.5 
37 
10.2 
8.25 
6.15 
.94 
.085 
.069 
.05 


23 

1,080 

2,050 

627 

491 

378 

56 

5 

4 

3 


1914-15. 
January 


302 
909 
240 
165 
1,290 
49 
9 
.5 


1.0 
55 
37 
25 
51 
10 

.5 




23.8 
168 
97.6 
44.6 
214 
23.5 
3.60 
.11 


1,460 




February 

March 


9,330 


February 

March 


6,000 


April 


2 650 


April 


May 


13,200 


Mav 


June 


1 400 




July 


221 


July 


August 


7 




The year 

1915-16. 




September o 


1,290 


.0 


47.4 


34,300 








The period.. 


281 





8.09 


4,720 


.1 
99 
54 
33 
18 


.1 

57 

34 
8.0 
3.0 


.10 
76.0 
43.1 
17.7 
6.05 


g 


1914-15. 


.05 

i1 


.05 


.05 

.27 
.78 


3 
16 

48 


April 


4,520 
2,650 
1,050 


October o . . . 


May 




June 




July 


372 









a Estimated. 
SWEETWATER RIVER AT SWEETWATER RESERVOIR, CALIF. 

The following record of run-off has been furnished by the Sweet- 
water Water Co. (see PL VII, A, p. 44) through John F. Covert, chief 
engineer : 

Run-off of Sweetwater River at Sweetwater reservoir, Calif. 

[Drainage area, 181 square miles.a] 



Season (Oct. 1-Sept. 30). 


Rainfall 
at Sweet- 
water 
reservoir 
(inches). 


Total 
run-off 

(acre- 
feet). 


Season (Oct. 1-Sept. 30). 


Rainfall 
at Sweet- 
water 
reservoir 
(iQches). 


Total 
run-off 
(acre- 
feet). 


1887-1888 




7,048 

25,253 

20,532 

21,565 

6,198 

16, 260 

1,338 

73,412 

1,321 

6,892 

4 

245 



825 




1902-1903. 


9.55 
5.11 
16.05 
16.24 
12.83 
11.74 
10.87 
10.28 
11.81 
11.11 
7.20 
11.63 
15. 74 
15.68 





1888- '»889 


13.64 
17.96 
11.76 
9.90 
11.62 
6.20 
16.21 
7.45 
11.87 
7.05 
5.74 
6.50 
9.27 
7.96 


1903-1904 





1889-1890 


1904-1905 


13 760 


1890-1891 


1905-1906 


35!000 


1891-1892 


1906-1907 


30' 000 


1892-1893 


1907-1908 


4' 140 


1893-1894 


1908-1909 


16 007 


1894-1895 


1909-1910 


9' 619 


1895-1896 


1910-1911 


S 160 


189&-1897 


1911-1912 


5,000 


1897-1898 


1912-1913 


915 


1898-1899 


1913-1914 


3,525 

27,085 


1899-1900 


1914-1915 


1900-1901 


1915-1916 


160,580 


1901-1902 









a Measured on topographic maps by U. S. Geological Survey. 



58 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 
MISCELLANEOUS MEASTJBEMENTS. 

Measurements of stream flow in the Sweetwater Kiver basin at 
points other than those at which gaging stations are maintained are 
recorded in the following table : 

Miscellaneous discharge measurements in Sweetwater River drainage basin. 



Date. 


Stream. 


Locality. 


Gage 
height. 


Dis- 
charge. 


Jan. 27,1916 


Sweetwater River 

do 

. do. .. 


NW. i NW. i sec. 20, T. 16 S., R. 2 E 


Feet. 


Sec.-ft. 
a2 4 295 


Do... . 


Sec. 14, T. 16&., R.l, 1 




a27, 530 

43,002 

12 


Do 


.TaTTianhn flany^Tl 




Mar. 7, 1914 
Jan. 27,1916 


do 


IJ miles above Sweetwater dam.. . . 




.. .do 






645 500 


Mar. 10,1918 
May 8, 1911 
June 28, 1912 
Oct 3 1912 


....do 


Dehesa 




14 


Ellis flnme . 






3 


.do 


do... 




1 


do 


do... . 




2 


Oct. 3^ 1913 


....do 


do 




25 


Jan 1 1918 


.do 


do 




11 


8, 1918 


do 


do. 




.15 













a Computed from cross sections and slope data. 6 Computed from data collecteda t reservoir. 

SAN DIEGO RIVER BASIN. 

GENERAL FEATURES. 

San Diego Eiver rises in the Cuyamaca Mountains, on the western 
slope of the Coast Range, and flows in a southwesterly direction, 
discharging into Pacific Ocean through Mission Bay, at the northern 
boundary of San Diego City. Its length is about 50 miles, half of 
which lies in the mountains above the town of Lakeside. The San 
Diego basin comprises 434 square miles and lies directly south of 
the San Dieguito basin and north of Sweetwater River basin. 

The San Diego has several small tributaries, the most important 
being Coleman, Cedar, Boulder, South Fork, and Chocolate creeks 
all of which enter from the east and south above Lakeside, San 
Vicente Creek, the only important tributary from the north, enters 
the river at Lakeside. 

The upper part of the basin above Lakeside, is extremely rough 
and rugged, but below Lakeside numerous valleys and high mesa 
lands extend to the coast. Elevations throughout the basin range 
from 50 to 600 feet in the foothills and from 600 to 6,000 feet in the 
mountains. Cuyamaca Peak, the highest point in the basin, is 
6,028 feet above sea level. 

The geologic formation of the basin is fully described in the re- 
port on the geology and ground waters of the western part of San 
Diego County, which is published as Water-Supply Paper 446. 

The San Diego basin is very poorly forested. The timber is con- 
fined almost entirely to the valley along the streams and to the 
higher mountain areas. The mountain slopes are fairly well covered 



SAN DIEGO EIVER BASIK. 59 

with brush, but the lower foothills are almost entirely bare, support- 
ing only a scattered growth of low brush. 

The mean annual rainfall ranges from 10 to 15 inches along the 
foothill belt, and from 20 to 45 inches in the mountains. 

Irrigation is carried on extensively in the valleys and on the mesa 
lands between Lakeside and San Diego, and additional areas might 
be irrigated if an adequate supply of water could be assured. Two 
storage reservoirs have been constructed: The Cuyamaca reservoir 
is on Boulder Creek, 4,600 feet above sea level, and has a capacity of 
11,400 acre-feet with a 35-foot earthern dam. La Mesa reservoir 
is in the foothills about 2 miles northwest of the town of La Mesa at 
an elevation of 435 feet. The original dam was constructed of earth 
and rock, was 66 feet high, and had a storage capacity of about 1,500 
acre-feet. It has recently been replaced by the Murray dam, a con- 
crete multiple-arch dam, 100 feet high, a short distance farther down- 
stream (PL VIII, p. 45). La Mesa reservoir is filled by water di- 
verted from San Diego Eiver through Cuyamaca Water Co.'s flume. 

G AGING-STATION BECORDS. 

SAN DIEGO RIVER AT DIVERTING DAM NEAR LAKESIDE, CALIF. 

Location. —In NE. ^ NE. ^ sec. 11, T. 14 S., R. 2 E., at intake of Cuyamaca Water 
Co.'s flume, about 1,000 feet below mouth of Boulder Creek, and 13 miles north- 
east of Lakeside, San Diego County. (See PL IX, A.) 

Drainage area. — 102 square miles (measured on topographic maps). 

Elevation. — ^About 800 feet above sea level. 

Records available. — October 1, 1912, to September 30, 1916. 

Gage. — Painted on upstream face of dam near left bank, February 22, 1916. Original 
datum not maintained. Gage previously used was a vertical staff fastened to 
upstream face of dam near left bank. A Friez water-stage recorder, at same site 
and datum, was in use January 16, 1912, to November 14, 1914. 

Discharge ivieasurements. — Made from cable one-fourth mile below dam or by 



Channel and control. — Sand; shifting above and below dam. The concrete diver- 
sion dam acts as a control. 

Extremes of discharge. — 1912-1916: Maximum stage recorded, January 28, 1916 
gage height not reported (discharge, 15,800 second-feet): no flow over dam for 
several months during each year. 

Diversions. — The intake of Cuyamaca Water Co.'s flume is at left end of diverting 
dam. No diversions above. 

Regulation. — See Boulder Creek near Julian for amount of water released from 
storage in Cuyamaca reservoir. Capacity of Cuyamaca reservoir, 11,400 acre-feet. 

Accuracy. — Stage-discharge relation permanent for flow over dam. Rating curve 
fairly well defined except for flood stages. Gage read to hundredths three times 
daily. Daily discharge ascertained by applying mean daily gage height to rating 
table or by applying to rating table mean daily gage height determined by inspect- 
ing recorder graph. Total discharge of river obtained by combining flow over dam 
and through waste gates with discharge of Cuyamaca Water Co.'s flume. Dis- 
charge through waste gates was computed by Cuayamaca Water Co. from record 
of gate openings. Records good. 

Cooperation. — Record for 1915-16 furnished by Cuyamaca Water Co. 



60 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Discharge measurements of San Diego River at diverting dam near Lakeside, Calif. , for 

1913-1916. 



Date. 


Made by — 


height. 


Dis- 
charge. 


Date. 


Made by- 


height. 


Dis- 
charge. 


1913. 
Jan. 16. . 


W. S, Post. 


Feet. 
9.82 

9.62 
10.08 


Sec.-ft. 
60 

11 

168 


1915. 
Feb. 3... 
6... 

1916. 
Apr. 14 


F. C. Ebert 


Feet. 
10.20 
9.80 


'"im 


1914. 
Jan. 20... 


F, C. Ebert . . 


do 

do... 


57 


28 


do 


57 




May 24.. 


D.A.McClung 




12 











Note.— These measurements show only discharge over dam. 

Daily discharge, in second feet, of San Diego River at diverting dam near Lakeside, 

for 1913-1916. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


1913. 
1 . . ...... 






2 




1 
1 

1 
1 
2 

2 
2 
2 
2 

2 

2 
2 
2 

: 


1913. 
6 


27 
28 
10 

5 

2 

.5 




3 




2 






2 
1 


7. . . 




3 








8. 








4. . . 








9 








5 












2 
70 
10 

2 
55 

40 
55 

28 


1 




6... ... 










1 




7 .. 




2 
.5 






2... . 


6 
10 
.5 
5 

5 




8 








•3 




2.4 


9 








4 






10 .. 










5.. . 






11... 










6 






12. 










7... 






13 






4 

1 




8 






.1 


14 








9 






15. 








. 




















1 






















Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1913-14. 
1 






12 
3 


28 
23 
19 
15 
17 

4 
(a) 
(a) 




19 
23 
10 
2 

(a) 






2 










3 










4 












5 












6 






«2 






7 














8 








4 
4 
.5 


0.5 




9 










10 
















11 










3 






12 










.5 






13 ... . 
















14 




1 
4 

8 
10 
12 
17 
15 

9 
8 
8 
12 
15 

190 
925 
135 
55 
31 
14 








2 
2 

2 
2 

2 






15 














16 












17 


1 












18 


■"""295' 

135 

1 ,260 
425 
255 
117 

72 

50 
36 
31 


1' 








19 








20 












21 














22 














23 


.5 




28 
1 








24 








25 










26 


(a) 
(a) 












27 












28 


10 

1 
19 

1 










29 




4 
33 








30 










31 











aDischarge for day less than one-half second-foot. 



U. S. GEOLOGICAL SURVEY 



WATER-SUPPLY PAPER 447 PLATE IX 





GAGING STATIONS. 

A, San Diego River at diverting dam, near Lakeside, Calif. ; B, Cuyamaca Water Co.'s flume at diverting 
dam, near Lakeside, Calif.; C, Cuyamaca Water Co.'s flume at Los Coches Creek, near Lakeside, 
Calif. 



U. S. GEOLOGICAL SURVEY 



WATER-SUPPLY PAPER 447 PLATE X 





GAGING STATIONS. 

A. Santa Maria Creek near Ramona, Calif.; B. Santa Ana River near Mentone, Calif., showing 
vertical staff gage; C, Tunnel diversion near Azusa, Calif., showing weir. 



SAN DIEGO RIVER BASIN. 



61 



Daily discharge, insecovd-feet, of San Diego River at diverting dam near Lakeside, Calif., 
for 1913-1916— Continued. 



Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1914-15. 
1 






58 
295 
362 
157 

83 

55 
33 
24 
15 
530 

8.50 
509 
222 
102 
112 

168 
179 
130 
94 
179 

157 
104 
90 
112 
162 

99 

86 
72 

890 
850 
760 
010 
330 

300 
240 
260 
220 
210 

190 
170 
160 
150 
145 

145 
145 
140 
140 
130 

150 
125 
110 
111 

106 

153 
133 

185 
176 


319 
203 
146 
130 
126 

94 
90 
126 
69 
83 

83 
69 
55 
50 
42 

39 
19 
14 
12 
8.5 

10 
10 

9 

7 

4.5 

3.5 
4.5 

10 

23 

8.5 

7 

305 
267 
206 
188 
244 

202 
175 
165 
159 
123 

119 
114 
109 
103 
94 

89 
88 
80 
78 
105 

183 
129 
236 
207 
191 

163 
159 
123 
119 
112 
103 


2 

....... 

14 

6 
3 

.5 
174 
90 

168 
104 

66 

"i52""' 



94 
92 
92 
95 
90 

225 
319 

60 
56 
56 

57 

GO 
10 
62 
62 

62 
51 
23 
30 
23 

19 
19 
19 

18 
17 

16 
15 
12 
12 
12 


126 
222 
287 
416 
1,520 

380 
216 
152 
117 
80 

52 

31 
130 
117 

90 

90 
83 
389 
99 
86 

69 
72 
69 
55 
55 

50 
47 
42 
42 
39 
33 

12 
10 

9 

9 

9 

9 
9 
9 
9 
9 

9 
11 
10 
14 

8.5 

8.5 
8 
8 

8.5 
18 

12 
9 
8.5 

8.5 
8.5 

8.5 

8 

7.5 

7.5 

6 

6 


31 
31 

28 
28 

28- 

26 
24 
17 
12 
10 

10 
10 
10 

8.5 

7 

5 
3 
2 


1.5 


2 








3 
















I :;;::: 








6 








7 - -- 








8 








9 . .. 






2 


10 






.5 


11 








12 








13 








14 . 








15 








16 . .. 








17 








18 ..... 








19 








20 . . 










21 










22 






2 
1 




23 




3.5 




24 . .... 






25 










26 










27 










28 . - 










29 




425 

488 
130 






30 . 








31 








1915-16. 
1 






.6 


2 ... 






2.5 


3 






2.5 


4 






2.5 


5 






2.5 


6 






2.5 


7 






1.0 


8 





























11 










12 














36 
54 
147 

1,581 
4,410 
2,655 
1,815 

727 

409 
276 
205 
264 
509 

929 
10,200 
10,900 
5,910 
3,070 
2,227 






14 






.5 


15 ... .... 






16 








17 








18 




1 




19 














21 








22 
















24 








25 








26 








27 








28 




1 
25 
25 




29 












31 















Note.— No flow over dam on days for which discharge is not given. No gage height record Jan, 28 to 
Feb. 21, 1916. Discharge Jan. 1-12, 1916, estimated at 31 second-feet. 



62 SUKFACE WATER OE PACIFIC SLOPE, SOUTHERN CALIFORITIA. 
Monthly discharge of San Diego River at diverting dam near Lakeside, Calif., for 1912-1916. 



Month. 


Discharge in second- 
feet. 


Run-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
leet. 


Run-off 
(totalin 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1912-13. 


28 
70 
10 
2.4 


.0 
.0 
.0 
.0 


2.34 
9.45 
1.21 
.18 


144 
582 

74 
11 


1914-15. 


488 
850 
319 
174 
1,520 
31 
2 



15 

3.5 


31 






33.8 
182 
60.5 
26.6 
170 
9.78 
.13 


2,080 
10,100 
3,720 
1,580 
10,500 
582 


February 

March 


February 

March . 


April . . 


April 




May 


The year 


70 


.0 


1.04 


791 


Jime... 


July 


8 


1913-14. 
December 


1 
925 
1,260 
28 
28 
23 
.5 


.0 
.0 
.0 
.0 
.0 
.0 
.0 


.05 
47.4 
96.2 
4.47 
2.3 
2.35 
.01 


3 

2,910 
5,340 

275 

137 

144 
.6 


The year 

1915-16. 
January 


1,520 





39.4 


28, 600 


February 


10,900 
890 
305 
319 
18 
2.5 
2.5 


""ioe'"' 

78 

10 
6 
.0 
.0 


1,510 
256 
153 
59.3 
9.27 
.23 
47 


92,800 
14, 700 


April . . 


February 

March . 


Mav 


9 410 




April 


3,530 






570 
14 


The year 


1,260 


.0 


12.2 


8,810 


June... 


July 


29 




The year 






10,900 


.0 


167 


121,000 



Note.— Flow over dam only. No discharge for months for which record is not given. 

Combined daily discharge, in second-feet, of San Diego River and flume at diverting dam 
near Lakeside, Calif, for 1912-1916. 



Day. 



Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


3.0 


3.3 


2.3 


2.5 


4.3 


39 


28 


6.1 


6.0 


7.8 


4.4 


3.0 


3.8 


2.4 


1.4 


4.0 


43 


34 


5.3 


5.3 


7.4 


4.1 


2.6 


4.0 


4.0 


2.6 


4.0 


40 


37 


3.2 


4.7 


7.4 


3.8 


10 


3.5 


4.0 


2.8 


4.0 


36 


27 


3.2 


4.8 


6.5 


3.6 


10 


4.5 


3.5 


2.9 


4.0 


41 


24 


3.2 


4.4 


5.8 


3.5 


11 


4.1 


3.1 


1.5 


4.0 


37 


17 


3.2 


4.4 


5.8 


3.3 


6.9 


3.8 


3.5 


1.1 


6.0 


35 


17 


4.0 


4.2 


6.1 


3.3 


4.8 


3.8 


3.3 


1.4 


10 


29 


18 


4.0 


4.2 


7.4 


3.3 


3.7 


4.0 


3.2 


.5 


8.7 


23 


24 


5.2 


4.4 


7.8 


3.3 


2.0 


3.8 


3.1 


2.7 


7.1 


24 


18 


5.4 


4.2 


8.0 


3.5 


2.0 


3.8 


3.2 


5.6 


5.5 


22 


12 


5.2 


4.2 


8.0 


3.5 


3.2 


3.5 


3.3 


8.0 


5.5 


40 


11 


5.2 


5.8 


7.6 


3.3 


3.1 


3.5 


3.3 


7.2 


5.5 


50 


11 


4.9 


5.9 


8.2 


3.3 


4.2 


3.5 


3.3 


5.5 


5.1 


49 


11 


4.9 


5.9 


8.2 


3.3 


3.1 


3.6 


3.5 


4.4 


4.8 


8.2 


12 


4.0 


6.1 


8.0 


3.3 


4.1 


3.7 


3.6 


33 


4.5 


12 


12 


2.8 


6.1 


8.0 


3.3 


3.6 


3.8 


3.6 


37 


4.2 


21 


13 


2.6 


6.7 


7.6 


3.2 


3.5 


3.0 


3.5 


19 


4.2 


24 


13 


2.7 


4.8 


7.8 


3.5 


3.1 


3.0 


3.5 


14 


4.2 


27 


13 


2.7 


4.5 


7.2 


3.7 


3.0 


3.5 


3.3 


10 


4.2 


30 


14 


2.7 


5.1 


5.8 


4.0 


3.0 


3.7 


3.3 


8.6 


6.2 


32 


14 


2.7 


6.7 


5.5 


4.0 


2.7 


4.0 


3.1 


9.0 


83 


19 


13 


2.9 


6.7 


5.3 


3.8 


3.2 


4.0 


3.1 


8.8 


42 


54 


4.0 


3.0 


7.2 


4.8 


3.6 


3.5 


3.3 


.9 


7.9 


39 


52 


8.2 


3.0 


8.0 


4.5 


3.5 


3.5 


3.6 


2.0 


6.7 


92 


55 


7.6 


3.7 


8.0 


3.8 


3.5 


3.2 


3.5 


3.2 


5.0 


77 


55 


6.1 


4.4 


8.0 


3.5 


3.6 


3.6 


3.5 


3.0 


4.2 


92 


37 


6.1 


4.2 


8.2 


3.5 


3.6 


3.5 


2.9 


2.7 


3.8 


65 


29 


6.0 


4.1 


8.9 


4.0 


3.6 


3.2 


2.7 


3.0 


3.8 




28 


5.5 


4.0 


8.0 


4.5 


3.7 


3.5 


2.7 


3.3 


4.0 




24 


6.8 


4.8 


7.1 


4.5 


4.2 


3.3 




2.7 


3.8 




22 




4.9 




4.5 


4.1 



Sept. 



1912-13, 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



3.6 
2.9 
2.8 
2.7 
1.7 

2.8 
3.7 
4.0 
3.6 
2.1 

2.2 
3.7 
3.7 
3.8 
3.3 

2.9 
3.0 
3.0 
3.3 
3.2 

3.2 
3.0 
3.3 
3.0 
3.5 

2.8 
3.2 
3.0 
3.2 
2.9 



SAN- DIEGO RIVER BASIN. 



63 



Combined daily discharge, in secorvd-feet, of San Diego River and flume at diverting dam 
near Lakeside, Calif ., for 1912-1916 — Continued. 



I, 
Oct. Nov. Dec. Jan. Feb. Mar. Apr. May. June. July. Aug. Sept. 



3.5 

2.5 
2.1 
2.3 
2.2 

2.4 
2.5 
2.3 
1.4 

2.8 

2.7 
2.4 
2.0 
2.2 



2.3 
2.4 

2.4 
2.4 
2.2 



6.0 
3.5 
1.9 

2.0 
1.7 
1.5 
1.1 



2.3 
2.5 
2.0 
1.9 



2.3 
3.8 
4.9 

3.3 
3.3 
3.3 
3.3 
3.9 

3.2 
3.3 
1.9 
2.5 
2.3 



0.0 
.0 

4.0 
.0 
.0 

.0 
.0 



.0 
.0 
3.0 
.6 
.0 

.0 
4.4 



.6 
6.9 
24 
3.8 

.0 

4.1 
20 

3.0 
13 

6.5 

5.5 



4.3 
4.3 

3.8 



4.3 
3.6 



5.5 
8.3 
4.3 
5.9 



12 
17 
16 

9.0 
9.2 
8.0 

12 

15 

190 
925 
143 
73 

50 



3.0 
2.9 
2.6 
2.5 

2.4 

2.4 
2.4 
2.4 
1.8 



2.4 
2.4 
2.4 

2.4 
2.4 
2.5 



19 
18 
12.5 

12.5 

15 
9.4 
434 
498 
144 



18 
8.7 



13 
12 
11 

9.4 
7.8 
11 

302 

145 

1,260 
444 
279 
145 
94 



83 
312 
364 
159 



851 
509 
229 
174 
114 

176 
187 
138 
113 
195 

174 
126 
117 
143 
192 

131 
118 
104 



349 
231 



6.0 
6.4 



7.2 
12 



54 

16.5 

184 
100 
178 
114 

102 
124 
102 
121 



23 
14 
15 



13 
15 



224 
321 
399 
528 
1,620 



277 
242 
205 



137 
161 

148 
121 

121 
114 
420 
130 
117 

100 
103 



5.5 
5.5 
5.5 



3.9 
12 
9.6 



6.2 
3.8 

4.7 

3.3 
.1 



7.8 
7.6 

7.8 



8.3 
7.4 
7.( 
7.0 



0.0 
.0 



.0 
5.0 
3.0 

2.0 
3.5 
4.6 
4.3 

4.4 

4.6 
4.6 
3.0 
3.3 
3.8 

3.0 
3.0 
2.9 
2.6 
2.8 

2.6 
2.8 
2.8 
2.8 
2.9 
3.3 



16.5 

15 

14.5 

14.5 

14 



10.5 
12.5 
11 



7.3 
9.3 
8.2 



8.2 

8.0 
7.8 
8.2 
8.7 
12 



8.7 
8.7 
7.6 



64 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Combined daily discharge, in second-feet, of San Diego River and flume at 
near Lakeside, Calif., for 1912-1916 — Continued. 



Day. 



1915-16. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 - 

30 

31 



6.1 
5.9 
6.1 

6.3 
5.9 
5.9 



6.5 
6.1 
5.9 



4.8 
4.4 
5.4 
4.4 
5.4 
5.4 



4.2 
4.2 
4.2 



5.0 
5.0 
5.5 
5.7 

7.4 
4.8 
2.5 
2.0 
2.3 

2.4 
2.5 
2.5 
2.5 
2.4 

2.2 
2.2 
2.2 
2.4 
2.5 
3.6 
3.6 
3.6 
3.6 
3.6 



3.4 
3.4 
3.6 



3,4 
4.1 
5.9 
4.2 
4.8 
4.8 
4.8 
4.8 
4.8 
10.5 



1.4 
1.8 
.1 
.0 
.0 
.0 
.0 
.0 



3.1 
4.4 
.3 
.6 
7.2 
15.5 



147 

1,581 
4,410 
2,655 
1,815 

727 



276 
205 
264 
509 

929 
10,200 
10, 900 
5,910 
3,070 
2,227 



850 
760 
610 
330 

300 
240 
260 
220 
210 
190 
170 
160 
150 
145 
145 
145 
140 
140 
130 
150 
125 
110 
111 
106 

153 
133 
185 
176 



305 
267 
206 



202 
175 
165 
159 
123 

119 
114 
109 
103 
94 



105 

183 
129 
236 
207 
191 
163 
159 
123 
119 
112 
103 



Apr. 



92 
95 
90 

225 
319 



May. 



15.5 

14.5 

13 

12.5 

11 

10 
5.2 
13.5 
14 
14 
14 



7.6 
6.7 

11.5 
9.6 

12 

12.5 

12.5 

12 

10 

10 
7.6 
8.0 
9.5 
9.5 



July. 



8.4 
7.7 
6.5 
6.2 
6.2 
6.3 
6.9 
6.6 
5.9 
6.1 

5.4 
5.7 
5.2 
12 
8.5 
8.0 
6.1 
5.6 
5.7 
5.7 
5.2 
5.0 
4.9 
4.6 
4.4 
4.0 
3.7 
3.7 
3.7 
3.7 
4.2 



Aug. Sept. 



5.2 
3.7 
3.7 
3.7 
3.7 

3.7 
4.0 
4.3 
4.4 
3.7 
3.8 
3.7 
3.7 



3.0 
3.8 
4.3 
5.7 
5.2 

4.6 
4.0 
5.4 
3.1 
3.0 

5.6 
4.0 
3.3 
3.1 
3.1 
3.0 



3.0 
3.0 
2.4 
3.1 
3.0 
4.0 
4.0 
3.8 
4.6 
5.4 

5.7 
5.7 
5.7 
5.2 
4.9 

6.1 



7.2 
9.1 
7.6 
7.0 
7.4 
7.0 



8.3 
7.4 



Note.— Records for 1913-16 include discharge through waste gates in dam. Mean discharge Jan. 1-12, 
1916, 31 second feet. 

Combined monthly discharge of San Diego River and flume at diverting dam near Lake- 
side, Calif, for 1912-1916. 



Discharge ta second- 
feet. 



Maxi- 
mum. 



Mini- 
mum. 



Run- 
off 
(total 

in 
acre- 
feet). 



Discharge in second- 
feet. 



mum. mum 



(total 



acre- 
feet). 



1912-13. 

October 

November 

December 

January 

February 

March 

April 

May 

Jime 

July 

August 

September 

The year. 
1913-14. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September — 

The year . 



4.5 
4.0 

37 

92 

55 

37 



2.0 
2.7 
.9 
.5 
4.0 
8.2 
4.0 
2.6 
4.2 
3.5 
3.2 
1.7 



4.07 
3.58 
3.12 
7.38 
21.4 
33.5 
14.7 
3.94 
5.95 
6.28 
3.60 
3.10 



250 
213 
192 
454 
1,190 
2,060 
875 
242 
354 
386 
221 
18'i 



9.15 



24 

925 

1,260 

56 

49 

37 

12 
5.0 
4.3 
3.8 



.0 
.0 
.0 
.0 
7.8 
14 
6.0 
5.7 
.0 
.0 
2.4 
1.2 



1.81 
.00 
3.50 
51.1 
112 
25.5 
17.3 
14.2 
3.26 
2.50 
3.36 
2.25 



111 


215 

3,140 

6,220 

1,570 

1,030 

873 

194 

154 

207 

134 



19.1 



1914-15. 
October 3-31.... 
November 1-16 . 
December 23-31. 

January 

February 

March 

April 

May 

June 

July 

August 

September 

1915-16. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year . . . 



851 

349 

238 

1,620 

60 

16.5 



0.9 
1.3 
3.0 
1.8 

40 

40 

16.5 

62 

14 
6.9 
4.8 
4.8 



1.83 
2.89 
3.79 
39.3 
199 
98.2 
65.2 
232 
34.2 
10.1 
7.21 
7.35 



105 

92 

68 

2,420 

11,100 

6,040 

3,880 

14,300 

2,040 

621 

443 

437 



7.2 
7.4 
15.5 
10,900 
890 
305 
319 
44 
15. 
12 
5.7 
9.6 



4.2 
2.0 




106 

78 

38 

22 
6.7 
3.7 
3.0 
2.4 



5.50 
3.47 
3.39 
1,510 
256 
153 
75.1 
31.1 
11.4 
5.8i 
3.9c 
5.8^ 



338 

206 

208 

92,800 

14, 700 

9,410 

4,470 

1,910 

678 

360 

242 

347 



126,000 



Note. — Records for 191.3-1916 include discharge through waste gates of dam. 



SAISr DIEGO RIVEK BASIIT. 



65 



SAIT DIEGO mVER AT LAKESIDE, CALIF. 

Location. — In El Cajon grant, just above ford on Lakeside-Padre Barona Valley 
road, three- fourths of a mile above Cuyamaca k Eastern Railroad bridge, three- 
fourths of a mile north of Lakeside, San Diego County, and about a mile above 
mouth of San Vicente Creek. 

Drainage area.— 203 square miles (measured on topographic maps). 

Elevation.— About 400 feet above sea level. 

Records available. — December 3, 1905, to September 30, 1916. 

Gage. — Staff gage in three sections on left bank 100 feet above ford. The site and 
datum unchanged since station was established. 

Discharge measurements. — Made from cable at gage or by wading. Equipment 
was destroyed by flood of January, 1916. 

Channel and control. — Sand; shifting. Both banks are fairly high; overflow 
unusual. Right bank was overflowed for a considerable distance during the flood 
of January, 1916. 

Extremes of discharge. ^ — 1905-1016: Maximum stage recorded, 12.6 feet Janu- 
ary 27, 1916 (discharge not determined; see San Diego River near Santee and at 
San Diego) ; no flow for long periods each year. 

Diversions. — Cuyamaca Water Co.'s flume heads at diverting dam about 1,000 feet 
below Boulder Creek and about 15 miles above station. Several pumping plants, 
1 to 3 miles above station, obtain water for irrigation from wells along the banks 
of stream. 

Regulation.— Cuyamaca reservoir, on headwaters of Boulder Creek, has a capacity 
of 11,400 acre-feet. See also Boulder Creek near Julian. 

Accuracy. — Stage-discharge relation not permanent. Gage read to hundredths at 
low and medium stages, liaK-tenths at other times; usually twice daily with more 
frequent readings during higli v/ater. Daily discharge ascertained by applying 
mean dailj^ gage height to rating table or, for periods not covered by fairly well 
defined rating curves, by shifting-control method and by interpolating between 
discharge measurements when change in stage was slight. Records fair. 

Discharge measureriients of San Diego River at Lakeside, Calif., for 1906-1916. 



Made by— 



Gage 
height, 


Dis- 
charge. 


Date. 


Frrf.. 


Scc.-jt. 


1907. 


2.G7 


0.4 


Jan. 10 


S.04 


12.5 


18 


2.90 


1.3 


19 


8.20 


42 


20 


3.28 




Feb. 4 


3.54 


100 


11 


3.50 


92 


23 


3.40 


07 


Mar. 4 


3.10 


17 


5 


4.50 


714 


5 


4.80 


995 


5 


4.10 


280 


11 


3.90 


201 


18 


4.50 


403 


23 


4.25 


183 


Apr. 1 


4.15 


98 ' 


13 


4.07 


130 


24 


4.25 


186 


May 3 


3.92 


96 


17 


8.86 


62 


25 


3.94 


89 


31 


3.45 


2.8 


June 8 


3.39 


.3 


13 


3.30 


1.0 


July 22 
Dec. 14 


3.65 


39 


19 


3.80 


82 


30 



Made by— 



Gar^e 


Dis- 


height. 


charge. 


Ffft. 


Scc.-ft. 


4.10 


234 


4. GO 


667 


4.20 


419 


4.00 


303 


3. 75 


105 


3.60 


74 


3.90 


152 


3.62 


81 


4.15 


335 


4.35 


623 


4.50 


576 


3.85 


187 


3.75 


116 


3.95 


268 


3.90 


189 


3.80 


145 


3.G5 


91 


3.60 


02 


3.54 


33 


3.48 


26 


3.49 


20 


3.50 


23 


3.52 


30 


3.30 


.62 


3.16 


.57 


3.18 


.06 


3.20 


1.10 



1906. 

Jan. 9 
24 

Feb. 6 
12 
20 
22 
22 
22 

Mar. 9 
13 
13 
14 
15 

Apr. 7 

21 
24 
30 
May 1 
9 

12 
June 20 
Aug. 8 
Dec. 19 

1907. 
Jan. 3 



W. V. Hardy. . 

do......... 

do 

do 

do 

do 

do 

do 

....do 

....do 

....do , 

....do , 

do , 

....do 

....do... = 

....do , 

....do 

....do , 

....do 

....do , 

do.. 



C.H.Lee 

R.S.Hawley... 
W.V.Hardy.. 

VV. V Hardy... 
do , 



W. V. Hard} 

do 

do , 

....do....... 

..-.do 

....do 

....do 

....do 

....do 

....do 

....do 

-...do 

....do 

.-..do 

..-.do 

-...do 

....do 

....do....... 

....do 

....do 

.-.-do. 

....do 

-...do 

W. A. Lamb. 
W.V.Hardy. 

do , 

....do ., 



142131°— 21— wsp 447- 



66 SUEFACE WATER OE PACIEIC SLOI*E; SOUTHERIT CALIFOEISriA. 



Discharge measurements of San Diego River at Lakeside, Calif., for 1906-19-10 — Contd. 



Made by— 



W. V. Hardy . . . 

do 

.-..do 

-...do... 

...-do 

.-..do 

.-.-do 

.---do 

--..do 

..-.do 

....do 

....do 

.-..do 

....do-...._- ... 

....do 

...-do.... 

.-..do... 

....do 

do 

do. 

do 

do 

do... 

do 

do 

do 

do 



\Y. V. Hardy 

Beadic and ilardy 

do 

....do 

W. v. Hardy 

do 

-...do 

do 

-...do 

.-..do 

.-..do 

do.. 

Hardy and Tlium 

W.V.Hardy 

do 

do 

Beadle and Tuum 

W.V.Hardy 

- - . .do. 

¥. Thum andH. Thum. 

W. V. Hardy 

do 

¥. Thum and H. Thum 

Beadie and Thum 

W.V.Hardy 

R. E. Haines 



W. V. Hardy. 

do 

do 

do 

do 

do 

do 

.-..do 

....do 

....do 

do 

-.-.do _ 

do 

-do 



..do-. 
..do.. 
..do.. 
..do.. 
..do.- 
..do.. 
..do.. 



. V.Hardy... 
..do 



Gage 
height. 



Fed. 
3.20 
3.22 
3.23 
3.36 
3.40 
3.50 
3.60 
3.80 
3.60 
3.50 
3.45 
3.50 
3.60 
3.80 
3.48 
3.45 
3.38 
3.41 
3.40 
3.34 
3.35 
3.45 
3.31 
3.45 
3.38 
3.27 
3.26 

3.11 
6.00 
7.00 
4.60 
4. 55 
4.20 
3.80 
3.60 
3.33 
3.50 
3.60 
3.52 
3.52 
3.38 
3. 60 
3.58 
4.25 
3.70 
3.50 
3.45 
3.40 
3.35 
3.30 
3.22 
3.20 
3.04 

3.50 
3.33 
3.22 
3.14 
3.17 
3.18 
3.15 
3.13 
3.12 
3.13 
3.37 
3.28 
3.20 
3.07 
3.02 
3.06 
3.02 
3.00 
2.97 
2.95 



2.92 
3.47 



Dis- 
charge, 



Scc.-ft. 
1.0 
1.2 
1.4 
13 
23 
30 
105 
133 
84 



62 
132 
30 



4.5 

3.9 
21 

4.8 
16 

5.2 



1.0 

2,500 

3,440 

1,090 

946 

457 

236 

162 

50 
130 
200 
105 
105 

7.1 
163 
141 
457 
165 

96 

98 

67 

43 

29.8 

23.1 

10.3 

15.2 



152 
100 
65 
38 



18 

108 



1911. 

Mar. 10 
11 
Apr. 18 
May 9 
Oct. 9 

1912. 

Mar. 27 

28 

29 

30 

Apr. 13 

May 1 



June 6 
29 

1913. 
Mar. 15 
16 
17 

18 
Apr. 15 



1914. 
Jan. 27 



1915. 
Jan. 2{ 



Mar. ,3 
4 



Apr. 



May 18 
June 21 

July 8 
Aug. 2 

1916. 

Feb. 20 
21 

Mar. 13 

A 15 

18 
18 
21 

Apr. 15 
21 
26 

May 8 
27 

.June 12 
28 

July 17 

Aug. 12 
29 



W. v. Hardy . . 

.do :... 

.do 

.do 

-do 

.do..-- 

.do 

.do 

.do 

-do 

-do 



W. V. Hardv. 

....do \. 

..-.do.... 

....do 

F. C. Ebert... 



F.C. Sbert. 

....do 

....do 



H. r>. McGla 
F.C. Ebert. 

F. C. Ebert. 

....do 

....do 

.do.. 



.do.... 
.dn.... 



H. P. McGlashan. 



..do.. 



K. li. Slepi3y. 

F.C. Ebert... 
K. B. Bleppy. 
F.C. Ebert:.. 



,.do.. 



Ebert and Keenaa 

F.C. Ebert 

R.W.Day....... 



B. W.Dav.. 
F.C. Eb^:-ft. 
R.W.Day.. 



Gage 
height. 



Feef. 
3.95 
3.60 
3.10 
3.03 



F.C. jrocit... 


3.03 


McClar.g and Kills 

F. C !• bort 


2.18 
2.07 


do 


1.81 


F. C. Ebert 


5.50 


do 


6.55 


do 

!!!;;do!;";;!;!;!!!;!]" 

do 

do 


6.35 
5.35 
5.20 
6. 22 
5.40 


do 

do 


5.25 
6.13 




5.16 


do 


6.12 


D. A.McCiang 

F.C. Ebert 

do 

do.... 


5.02 
5.00 
4.94 
4.89 


do 




^^'> 


-3.50 



3.52 
3.30 
3.20 
3.62 
3. 94 
2.93 
2.88 
2.86 
2.87 
2.80 



2.60 
2.85 
2.62 
2. 56 
2.52 
2.42 

4.35 
2.80 
2.37 
2.32 
2.43 
2.40 
2. 33 
2.17 



a Estimated, 



SAls DIEGO EIVEPv BASII^. 67 

Daily discharge, in second-feet, of San Diego River at Laleside, Calif., 1907-1916. 



9.. 
10.. 



11. 
12., 



21., 

22. 
23.. 



29. 
30. 
31. 



83 
100 



145 
122 
83 
83 
230 

475 
145 
83 
122 
170 

145 
145 
1,050 
419 
303 

303 
260 
217 
142 
142 



142 
95 



Feb. 



260 
142 
105 
105 



40 
45 
32 

42 
240 
124 
102 

77 

75 
72 



65 
530 

310 
318 
330 
264 
208 

187 
215 
210 
151 

147 

170 
140 
115 
122 



200 
168 

940 
595 
345 
235 
200 
220 



Apr, 



222 

254 



258 
260 



225 
196 
200 
172 

172 
172 
148 
125 

128 

145 
145 
127 
108 
108 

108 
108 
91 
91 
110 

88 
106 



May. 



23 
23 
23 
23 
23 

23 
23 
35 
23 
23 

23 
23 
23 
23 
13 



28. 
29. 



9 


10 


0.5 

.3 
.3 

■X 

:: 

.3 

!3 
.3 

.3 
.3 
.3 
.3 
.3 

.3 
.3 


11 

12 ... . 

13 


14 


15 


16. 


17 


18 


19 . . . 


20. 


21 


22 .... . 


23... . 


24 

25 


26 


27 



0.3 
.3 
.3 
.3 



■M 



1.0 
1.0 

1.0 

1.0 

1.0 

1.0 I 

1.0 

1.0 



1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 

1.0 
13 



1.5 
1.0 

1.0 
1.0 
3.0 

23 

30 



Apr. 



300 
110 



21 
28 
205 

1.55 
140 
180 
112 
84 

81 
80 



50 
132 



62 ' 
61 : 



35 



26 [ 
26 i 
26 
26 



26 

18 



12 
16 



14 
12 



68 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 
Daily discharge, in second-feet, of San Diego River at Lakeside^ Calif., 19G7-1916 — Con. 



Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


1908-9. 
1 




0.2 
.2 

.2 

:i 

.2 
.2 

.2 
.2 

.2 

.2 
.2 

1.0 
5.0 
10 

8.0 
6.0 
4.0 
3.0 
2.0 

1.0 
a 2, 550 
850 
200 

162 

160 
120 
200 
165 
95 
55 


50 
45 
55 
235 
145 

110 

110 

1,310 

225 

170 

285 
285 
810 
390 
265 

240 
215 
170 
150 
150 

850 
320 
290 
240 
220 

200 
200 
145 


135 
125 
105 
110 
105 

105 
105 
100 
70 
70 

75 
75 
50 
50 
50 

50 
55 

55 

55 

55 
180 
160 
175 
150 

105 
300 
390 
265 
190 
150 


135 
120 
105 
85 
105 

125 
100 
96 
96 
96 

97 

98 
92 
88 
80 

74 
67 
63 
59 
55 

51 
47 
43 
42 
40 

39 
37 
36 
34 
33 


31 
30 
29 

28 

27 

26 
25 
24 
23 
22 

22 
21 
20 
19 
19 

18 
17 
16 
15 
15 

14 
13 
12 
11 
10 

10 
10 
10 
10 
9 
9 


9 

9 
9 
9 
9 

S 
8 
8 

s 

8 

8 

8 

7 
7 


6 
() 
6 
6 

6 
6 
6 

5 

5 


5 
5 
5 
5 
5 

3 
3 

3 
3 
3 
3 

1 

2 
2 

2 

2 
2 
2 
2 
1 
1 


1 


2 




1 


3 




260 


4 




125 


5 




125 


6 




2 


7 




1 


8 




1 


9 






10 






11 






12 






13.„... 






14....... 






15.... 






16 






1?.... . 


O.l 
.1 
.1 
.1 

.2 
.2 
.2 
.2 

.2 

'.2 
.2 
.2 
.2 




18 




19... 




20 




21 




22.,... 




23. 




24. 




25 .. 




26 . 




27 




28 




29 




30 




31 








I>a}'. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1909-10. 




391 

462 
355 
273 

217 

184 
149 
149 
120 
156 

138 
158 
120 
102 
102 

238 
355 
176 
138 
120 

102 
86 
71 
62 
59 

80 
70 
62 
65 
56 
50 


65 
86 
70 
56 
36 

56 
50 
58 
56 
56 

43 
41 
30 

27 

35 
27 
38 
44 
59 

124 
62 
46 
44 
46 

49 
37 
39 


40 
3S 
30 
22 
22 

20 
30 
32 
32 
24 

18 
27 
17 
12 

25 
15 
17 
17 
20 

17 
22 
23 
22 
20 

43 
54 
125 
194 
176 
109 


69 
62 
74 
64 
52 

47 
54 
47 
32 
29 

32 
52 
80 
54 
43 

30 
26 
18 
22 
20 

14 
11 
11 

6.0 
2.7 

4.3 
2.0 
1.2 
1.0 
1.2 


3.6 
3.6 
3.6 
3.0 
5.0 

2.4 
3.0 
2.4 
2.0 
1.6 

1.6 
1.2 
1.2 
1.2 
.6 

1.0 
.8 
1.0 
1.2 

.8 

1.0 
1.0 
.8 
1.0 
1.2 

1.2 
1.2 

1.2 
1.0 

.8 
.8 


0.6 
.6 
.6 
.2 
.2 

.2 
.3 
.6 
.6 
.4 

.2 
.1 
.1 
.4 
.3 

.4 
.3 
.4 
.3 
.3 

.3 

. .4 
.4 
.4 
.4 

.4 
.6 
.4 
.4 
.6 


0.4 






.4 


3 




.6 


4 




.6 




i 

1 
1 
1 
1 
225 

30 
6 
4 
3 
2 

2 

2 
2 
4 

75 
90 
50 
85 
35 

20 
20 
20 
15 
15 
15 


.6 


f). ... 


.6 


7 


.3 


8 


.2 


9 




10 












13 




14 




15 




16 




17 




18 




19 




20 












23 




24 




25 




25 




27 












30 




31 











; Maximum discharge 3,700 second-feet. 



SAI^J" DIEGO RIVER BASIN. 69 

Daily discharge, in second-feet, of 8 an Diego River at Lakeside, Calif., 1907- 1916 — Con. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


1910-11. 
1, 




2 

4 

18 

655 

375 

123 
93 
43 
32 

18 

14 
16 
37 
295 
116 


84 
56 
38 
290 
167 

113 

80 
120 
117 
140 

176 
133 
105 

75 
72 


17 

88 
44 
33 
29 

29 
57 
83 
55 
43 

32 
22 
16 
16 
16 


9 
9 
3 
2 
.3 

.3 
.3 
.3 
.3 
.5 

.2 
.2 
.2 

.2 
'.2 


2 
.2 
.2 
.2 

.2 

'.2 
.2 
.2 

.2 
.2 

.2 
.2 
.2 


1910-11. 
16 




97 
65 
50 
40 
37 

23 
18 
20 

18 
24 

37 
30 

56 




67 
58 
52 
46 
40 

40 
40 
40 
35 
32 

27 
20 
21 
17 
15 
17 


18 
12 
12 
10 

8 

8 
11 
11 

7 
7 

5 

10 
11 
10 

9 


1.2 
.4 
.2 
.2 

.2 

'.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 
'.2 


0.2 


2 




17, 




.2 


3 




18 




.2 


4. . . 




19 




.2 


5 




20 




.2 


6 




21 




.2 


7 





22 




.2 


8 




23 




.2 


9 




24 




.2 


10 








.2 


11 




26 


32 

22 
14 
14 
12 
14 


.2 


12 




27 


.2 


13 




28 


.2 


14 




29 


.2 


15 




30 


.2 






31 




Day. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Day. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


1911-12. 
1 




150 
103 
82 
64 
64 

64 
56 

42 
42 
73 

202 
307 
260 
2^5 
260 


29 
35 
35 
29 
23 

20 
16 
145 
195 
95 

55 

55 
38 
38 
26 


2 
.5 

'.5 
.5 

.5 
1.5 
1.5 
1.5 

.5 

.5 
.5 
.5 
.5 
.2 


0.2 
.2 
'.2 
.2 

.2 

.2 

*.2 

.2 
.2 

.2 
.2 

.2 
.2 
.2 


0.1 
.1 
.1 


1911-12. 
18 


26 
21 
16 
12 
9 

12 
46 
100 
21 
16 

02 
146 
62 
46 
150 
202 


245 
202 
125 
103 

82 

82 
64 
64 

48 

48 

42 
35 
35 
35 
35 


26 
16 
16 
16 
IG 

12 
15 
15 
15 
15 

14 

13 

8 

6 


0.2 
.2 
.5 
.2 
.5 

.5 
.5 
.5 
.2 
.2 

.2 
.2 
.2 
1.0 
.5 


0.2 
.2 

.2 




2 




17 




3 




18 




4 




19 




5 




20 




C) . ... 




21 




7 




22 




8 




23 




9 




24 




10 


285 

100 
6 
184 
146 
46 


25 




11 


26 




12 


27 




13 


28 




14 


20 




15 


30 






31 











Day. 


Feb. 


Mar. 


Apr. 


May. 


Day. 


Feb. 


Mar. 


Apr. 


May. 


1912-13. 
1 




30 
30 

25 

15 

. 25 
20 
15 
15 
10 

10 
15 
25 
35 
35 


12 
16 
16 
11 
11 

11 
11 

7 

10 

7 
1.5 
2.0 
1.5 


0.2 

.2 

'.2 
.2 

.2 
.2 
.5 
.2 
.2 

'.2 

.2 

. 2 
'.2 


1912-13. 
16 




12 
15 

3 

8 

17 
25 
10 
24 
38 

42 
23 
23 
13 
13 
8 


1.0 
1.0 
1.0 
1.5 
1.0 

1.0 
1.0 
.5 
.5 
.5 

.5 
.5 
.3 


2 


2 





17 




2 


3 . 




]8 




2 


4 




19 




.2 


5 . . 




20 




2 


6 




21 




2 


7 




22 




.1 


8 




23 






9 




24 






10 




25 


1 

40 
25 
40 




11 




26 




12 




27 




13 




28 




14 




29 




15 


0.3 


30 










31 .... 

















70 SURFACE WATER OF PACIFIC SLOPE, SOUTHER]N^ CALIFORIStIA. 

Daily discharge, in second-feet, of San Diego River at L(d:eside. Cal'f.. 1907-1916 -Con.. 



9.. 
10.. 



12.. 
13.. 
14.. 
15.. 



Apr. May. 



1.5 

1.5 
1.5 



Bay. 



2.5 

2. 
2. 



12. . 
13.. 



19.. 
20.. 



^5 1 


1 
26 ! 


27 ! . - 


28 i 


29 


160 


30 


900 


31 


270 



97 
280 
905 



1,580 
608 
410 



171 
234 
200 
131 

143 

270 
200 
143 
131 
143 



Apr. 



217 
200 



May. ; June, j July. 



530 
1,290 



64 
63 



SAN DIEGO PvIVEK BASIN. 71 

Daily discharge^ in secoud-feet^ ofScm Diego River at LaJceside, Calif., 1907-1916 — -Con. 



D' 



Day. 


Feb. 


Mar. 


Apr. 


May. 


Jrme. 


July. 


Aug. 


1915-16. 
1 


1, 530 
695 
570 
495 
360 

332 
332 
392 
255 
202 

210 
210 
28,0 
255 
31(5 

255 
265 
305 
332 
316 

532 
332 
219 
202 
202 

232 
332 
255 
265 


425 
265 
280 
280 
332 

305 
210 
232 
232 
190 

190 
178 
202 
190 
178 

192 
. 178 
138 
135 
265 

397 
390 
430 
350 
340 

380 
325 
270 
220 

170 
155 


155 
155 
150 
150 
140 

135 
130 
120 
120 
120 

120 
120 
125 
110 
98 

85 
77 
74 
70 
67 

64 
61 

65 

66 

66 
64 
61 
59 

56 




54 
51 

49 

44 

41 
39 
36 
36 
38 

36 
43 
43 
35 
31 

34 
26 
26 
23 
31 

31 
31 
31 
34 
34 

31 
31 
26 
25 

24 
23 


21 
20 
19 
18 
18 

15 
14 
13 
11 
10 

9 

8.5 
8 

6 
6 

I 

5 
5 

4 
4 
4 

3 
3 
3 
3 

3 


2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 

2 

2 
2 
2 
2 
2 

2 

1.8 

1.5 

1.5 

1.5 

1.5 

1 
1 
1 

1 

1 
.5 

.5 
.5 
.5 


0.5 


2. 




3 ... 




4 , 




5 




6 




7. 




8 




9 




10 




11 




1-2 




13. . . 




14.. 




16 




16. .. .. . . 




17 .. 




18 ... 




19 ...... . 




20 . . • 




21 





22. . 




23 




24 





25 . . . 




?6. 




27......... 




28 ... . 








30 




3'.. . 













II — \f 

•^ J II 



C01 

I'li 

cun 



.?iTC]i . Daily discharge determined as follows: 

ic'l from gage heiglits, preciioitoi ion rocords, and local 

^ond-foct; Feb. 13 to 
. cleiincd b&tweon 16 
;,? ^vei^deill2ed rating 



;urvc iajrly W(;ll defined between 30 and ISi- s; 

'lar. 12 to Apr. 16, from rating cm-ve fairly v.e 

1 i-g-control method; Apr. 25 to July 8, from fair 



'') IV h ui iHi;.! method; May 11 to June 30, estimated. 

' ' "^t ! i() :) 1 -^ s"! IP c ,^1 method. 
1 (, ) ; ' 1 s' 1 I m:; co"frol method. 

o ?a I '^i 6 -"o Y"i.x 6 from fairly well-defined rating curves. Jan. 31 to Feb. 5, 1914, gage- 
'i( -,11 1 ■) lis h gc '^-. iraited from discharge measurements. Mar. 7 to June 13, from poorly 

1*> o T-, I 2Q 10 \ ig o, by '='hifting control method and from fairly wcil-defined rating curves covering 
blio ( oei'oib. 



72 SUKFx4CB WATER OF PACIFIC SLOPE, SOUTHEEI^ CALIFORITIA. 

Mordhly discharge of San Diego River at Lakeside, Calif., for 1906-1916. 



Horxth. 


Disch 


arge in second- 
feet. 


Eun-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Run-off 
(total in 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1906. 
January 


212 
252 
3,800 
890 
170 
51 
2.8 
.8 
.3 


0.6 
1.4 
15 
105 
39 
2.8 
.8 
.4 
.0 


16.7 

43.6 

683 

277 

65.7 

15.1 

1.2 

.6 

.1 


1,030 

2,420 

42, 000 

16,500 

4.040 

'898 

, 74 

37 

6 


1910-11. 


32 
655 
290 
88 
9 
.2 


.0 

2 
15 

5 
.2 
.2 


3.5 

84.1 

75.3 

24.2 

.98 

.20 


215 


February 

March 


February 

March . 


4,670 
4,630 
1 440 


April 


Anril 


May 


May 


' 60 


June 


June 


12 


July 


The year.... 

1911-12. .. 
March 






655 


.0 


15.2 


11,000 


September 


285 

307 

195 
2 
.2 
.1 


.0 
35 
2 
.2 
.1 
.0 


55.3 

109 

33.7 

.58 

.16 

.01 




The period.. 








67,000 


3,400 

6,490 

2,070 

34 












1908-7. 


152 
1,050 
260 
940 
320 
83 
23 
.6 




27 

32 

60 

68 

23 
.6 
.2 


11 

183 

87.6 
242 
157 

45.4 

15 
.44 


676 
11, 300 
4,870 
14,900 
9,340 
2,790 
893 
27 




December 


June 


January 


July 


10 


February 


August 


1 




The year 

1912-13. 

February 

March 




.April 


307 


.0 


16.5 


12,000 




Jurfe 

Jul >'.... 


40 

42 
10 

.2 


.0 
3 
.3 
.0 


3.80 

19.4 

5.48 

.15 


211 




1,190 
326 


T'he year 






61.8 


44, 800 










May 


9 


1Q97 8 


.5 
1 
100 

2no 

130 
30 

.5 

.2 


.1 

l"' 

14 
12 

4 ^ 

."2 



.2 
.6 

15.5 

76 

44 

11.6 
5 
.4 
.1 


3 

953 

4,370 

2,700 

690 

307 

24 

6 


The year 

1913-14. 
January 




November 


42 


.0 


2.40 


1,740 


January. 

February- 


908 
908 

54 

20 

20 
1.5 


.0 

.05 
1.5 
1.5 
1.5 

.0 


48.8 
110 
14.5 
4.55 
4.39 
•.48 


2,880 
6 110 


Mareii 


February 

March 


Ar^YH 


'892 


M^^ 


Apri' 


271 




May . 


270 


J^%^---- 


June 


29 


The year 

1914-15. 

January 

February 

March . . . 










12,4 


9, 100 


908 


.0 


14.4 


10,500 








1908-9. 

iJecember 

January... 

February. 


.2 

2, 550 

1,310 

390 

135 

31 

9 

5 

260 


.0 

,2 
4.5" 
50 

6 
1 
.0 


.08 
148 
2Si 
122 
74.5 
18.2 
7.17 
3. 19 
16.6 


9, 100 
1.5, 600 
7, 500 
4.430 
1, 120 
427 
196 
1,020 


900 

1,580 

270 

432 

1, 290 

G7 

6 

.1 


.0 
36 

44 

13 

77 
7 
.1 
.0 


42.9 
270 
124 
84.6 
276 
27.3 
1.08 
.02 


2, 640 
1.5,000 

7,620 

5,030 
17,000 

1,620 
66 




April 


May. 


May 




June 


July 


July 


iiugust . . 


1 




The year.... 

1915-16. 

January 

Febrxiary 

March 






1,680 

i;536'"" 

430 
155 
54 
21 
2.5 
.5 


.0 

.0 
202 
135 
56 
23 
3 
.5 
.0 


67. 6 


49,000 


The year 


2, 550 


.0 


54.5 


39,400 


2,420 
361 
2.59 
98.4 
35.0 
8.78 
1.65 
.032 




1909-10. 
December. 


925 
'162 
124 
194 
80 

.6 


.0 

50 

27 

12 
1 
.6 
.1 
.0 


23.5 

156 

49. 5 

41.4 

31.7 

1.68 

.38 

.12 


1,440 
9.590 
2:750 

2, .550 

1,890 

103 

23 
7 


149,000 
20,800 
15,900 
5,860 
2,150 
522 


Feliruary. 

March 


April 


Miy 

June 


May . . 


July 

August 


101 




2 


Jply 










.0 


267 


194,000 


The year 


462 


.0 


25.4 


18, 400 







Note.— Discharge for January, 1916, estimated from study of mean rainfall computed for drainage area 
conipared with record of flow on San Diego River at diverting dam and at San Diego. No flow in months 
for y-iiich record is not given. 



SAN DIEGO EIVEE BASIN. 7^ 

Comhined daily discharge, in second-feet, of San Diego River and flume near Laleside, 
Caiif., for 1907-1916, 



Day. 


Oct. 


Nov. 


Doe. 


Jan. 


Fpb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1907. 
1 








92 
110 
52 
37 
35 

152 
129 
93 

8S 
23-1 

477 
149 
88 
128 
173 

IJR 
149 
1,0.50 
421 
305 

306 
2r,3 
219 
145 
143 

infi 
97 

97 
101 

146 

96 

5.5 
5.3 
4.9 
4.9 

4.7 
3.4 
3.2 
3.3 
3.3 

4.9 
5.3 
6.9 
6.9 

IS. 5 

29 

30 
7.8 
0.5 
6.5 

8.0 

8.5 
11 

33 

41 

77 
41 
65 
110 

73 
46 


261 
143 
106 
106 
96 

96 

84 

76 
76 

62 
46 
44 
50 
37 

48 
240 
129 
106 

79 

77 
74 
70 
60 
51 

83 

84 
68 

26 
25 
ill 
306 
117 

51 

49 
SO 
3? 
211 

161 

146 
187 
114 
86 

86 
88 
4,S 

50 

50 
60 
66 

64 
54 

44 
34 
3i 

38 


74 
78 
62 
71 
534 

314 
322 

332 
2i"6 
210 

189 
218 
213 
154 
150 

173 
143 
118 
125 
114 

294 
28't 
240 
205 
172 

943 

698 
349 

239 

203 

45 
43 
53 
134 

117 
80 
64 
63 
50 

3? 
38 
38 
30 
30 

30 
30 
30 
30 
31 

30 
22 

21 
16 

18.5 

65 
98 
64 
39 
30 
SO 


229 
261 
326 
265 
267 

266 
231 
202 
208 
178 

178 
180 
156 
132 
135 

152 
151 
133 
114 
114 

114 
118 
102 
102 
121 

99 
117 

79 
94 
114 

23 
25 
24 

24 
22 
22 
20 
17. 5 

15. 5 

16 

16 

16 

14.5 

14.6 
14.5 
15. 5 
14. 5 
1.3.5 

14. 5 

19.5 
39 
40 
32 

24 
18.5 
15 
15 


94 
74 
73 

73 

88 

84 
104 
82 
66 
65 

67 
67 
66 
62 

48 

•17 
45 
37 
38 
38 

37 
38 
40 
44 
45 

Ji 
42 
iO 
40 
X9 
39 

]." 

16. 5 
18.5 
37 
27 

25 
23 
20 

15. 5 
17.5 

16. 5 
17 

15. 5 

12 5 
12.5 
10.5 
9.5 
8.1 

8.5 
7.6 

7.8 
6.7 
6.9 

8.2 
8.9 
8.9 
8.2 
8.2 
8.5 


39 
36 
34 
S3 

30 

30 
30 
43 
32 
31 

32 
32 
35 
39 
21 

20 
21 
17 

16, 5 
16 

17 
18 

17.5 
17.5 

16. .'■■ 

13 

7.1 

G,S 

6.7 
6.3 
6.3 
6.3 

6.3 

7.4 
8. 6 
8.1 
7.0 

7.1 
7.-} 
7.S 
7.8 
7.8 

7.3 

l-l 

1.1 
7.9 
7.9 
7.7 


9.3 
9.6 

11 

11.5 

11 

11 

11.5 
11.5 
11 

10 

9.9 

8.8 

».G 
10 

11 
11 

10. 5 
9.2 
10 

10.5 
10 
9.9 
10 
10 

10. 5 
10.5 
11 

9.8 

7.7 
1:1 
1:1 
7.0 

7.0 
7.4 
8.2 

8.4 

8.6 
8.2 
8.2 
8.4 
8.4 

8.6 
8.9 

7.8 
7.1 
6.0 

6.0 

S.l 
8.3 
7.8 
8.1 

4.3 
6.8 
7.2 
7.0 
7.2 
8.4 


9.5 
8.7 
8.2 
7.5 
7.5 

7.7 
7.2 
7.0 
6.3 
7.0 

8.4 
8.7 
9.7 
9.5 
9 5 

14 

10 
9.7 
9.7 

10 

10. 5 
9.5 
8.2 

7.7 

7.5 

8.C 
9.C 
9. ■/ 
9.5 

10 

10.5 

8.7 

8^2 
7.2 

7.7 
6.1 
6.8 

7.7 

4.1 
1.8 
3.0 

s'.o 

7.7 

7.2 
7.5 

8.2 
8.0 
8.0 
8.0 
8.0 
8.2 


10 


2 








8.2 


3 








6.8 










7.5 


5 








10 


r> 








9.5 


7 








9.2 


8 








8.0 










8.2 


10 








9.7 


11 








9.7 


12 








iO 


13 








10 


14 








10.5 


15 








10.5 


\n, 








9.7 


17 








10 


18 








10 


19 








10.5 


20 








10.5 


21 








9.2 










5.7 


23 








G.l 


2J 








10 


25 








10 


2'!) 








10 


27 








9.7 


2S 








10 


29 








8.7 


30 








9.2 


31 










1P07-8. 
1.. . 


9.2 
8.4 
S.O 

7.7 
8.2 
7.5 
0.3 
6.8 

6.8 
6.6 
6.1 
6.3 
9.2 

8.4 
7.0 
.5.5 
5.3 

5.7 

3.7 
5.0 
7.0 
5.7 
6.3 

6.8 
G.l 
0.3 

6.G 
2.9 
3.2 


3. '^ 

3^9 
4.6 

4.6 
2.8 

4.9 
4.6 
4.9 

"1 

1.0 

2.0 
.7 
1.5 

I3 
.6 
6.4 
7.1 

7.1 
7.3 
2.5 
4.6 
3.0 


G.2 
2.6 

6.0 

2.7 
7.7 
7.5 
2.2 

1.4 
2.0 
1.1 
1.2 
4.1 

.9 
.7 
.() 
1.0 
2.3 

2.7 

4.6 
2.2 

2.7 
4.6 

1.0 
2.5 
4.6 
6.9 
10 
3.9 


7.7 


2 


6.8 


3 


7.2 


4.. 


8.2 




7.7 


fi 


6.3 


7 


5.9 


8 


0,1 


9 


7 2 


10 


7.7 


11 


G.3 


12... . 


6.3 


13 


5.0 


14 


6.1 


15.. 


7.2 


10 


8 2 


17 


8 4 


18 

19 


8.4 
8 7 


20 


7.0 


21 


6.8 


22 


6 3 


23 


8.4 


24 


9.7 


25 


6.3 


26 


9 2 


27. .. .. _ 


9 2 


28 


9.2 


29 


8 7 


30 . 


8 


31 






74 SURFACE WATER OE PACIFIC SLOPE, SOUTHEPvK CALIFOEE-IA. 

Cvrn.hined daily discharge, in second-feet, of San Diego River and flume near Laleside, 
Calif. , for 1907-1916— -Gontmiied. 



Oct. 


Nov. 


7.0 


5.9 


8.0 


5.5 


8.0 


4.S 


7.5 


5.0 


7.2 


5.5 


G.8 


5.3 


6.3 


4.6 


0.1 


4.3 


5.9 


4.5 


7.7 


4.S 


o.s 


G.l 


6.8 


6.1 


7.5 


5.9 


7.5 


5.7 


7.5 


5.7 


8.0 


5.7 


7.7 


5 5 


6.0 


5.9 


4.G 


6.3 


5.3 


5.9 


G.8 


4.8 


0.6 


4..S 


6.1 


5.3 


6.3 




5.7 


2.6 


5.7 


2,7 


6,1 




0.3 


5.6 


7.0 


5.7 


7.2 


5.5 


7,0 







5 










8 


6 


6 


6 


6 


5 





6 


6 


7 


6 


7 


C 


7 




6 


G 




G 




G 




7 




7 








r, 




(: 




6 




G 




6 




5 




4 


G 


3 


3 


4 


4 


(■' 







G 


8 






6 


5 


5 



an. 


Feb. 


ilar. 


Apr. 


May. 


Jxme. 


My. 


Aug. 





63 


135 


139 


43 


19 


10 


6 


H 


50 


125 


124 


42 


17 


10 


8 


5 


58 


105 


107 


41 


17 


11 


268 


8 


239 


111, 


90 


40 


16 


12 


133 


2 


148 


100 


109 


39 


11 


12 


133 


2 


113 


105 


129 


38 


9 


11 


10 


2 


113 


105 


105 


38 


10 


12 


7 


2 


1.320 


100 


104 


37 


17 


12 


7 


3 


2':'0 


75 


104 


30 


10 


11 


7 


G 


172 


72 


104 


35 


K) 


11 


8 


6 


288 


70 


105 


34 


10 


12 


8 


(; 


289 


75 


100 


33 


1.5 


12 


8 


4 


815 


55 


100 


83 


13 


12 


7 


10 


395 


53 


93 


32 


10 


11 


10 


IG 


268 


53 


S9 


32 


17 


4 





10 


211 


51 


85 


30. 


IS 


10 





10 


218 


£('i 


78 


29 


17 


10 





u 


172 


57 


74 


29 


IS 


10 





11 


1.50 


55 


71 


28 


18 


10 


7 


9 


150 


02 


00 


28 


10 


10 


8 


9 


858 


'^.0 


03 


27 


14 


10 


9 


550 


320 


1S5 


58 


20 


13 


9 


9 


SoO 


290 


lOi \ 


55 


24 


12 


11 


9 


204 


240 


1.^4 


54 


21 


12 


13 


10 


109 


220 


153 


51 


22 


12 


11 


10 


171 


003 




50 


22 


12 


10 


10 


13 i 


-jrw") 


f^05 


-r.) 


21 


12 


10 


9 


21! 


InO 


3r'4 


A:^ 


22 


13 


10 





179 






47 


22 


13 


9 


7 


109 






JO 


21 


11 


8 


8 


(■0 








20 




^ 


7 


308 


_ 


40 


-r 


16 





9 


6.7 


400 


8f) 




07 


10 


10 


9 


7.8 


3.^8 




30 


79 


15 


10 


9 


8.5 


275 




29 


50 


14 


10 


9 


8.5 


219 


■■•■' 




54 


10 


10 


8 


7.0 


i*;J- 


00 


25 


49 


14 


10 


10 


8.3 


149 


00 


30 


57 


1-i 


10 


9 


8.0 


149 


5!) 


32 


54 


13 


9 


8 


7.6 


120 


50 


32 


40 


12 


9 


7.4 


7.8 


159 


50 


28 


33 


11 


7 


0.4 


8.3 


143 


44 


27 


34 


11 


Q 


7.1 


7.3 


160 


44 


30 


54 


10 


6 


7.6 


8.0 


124 


38 


25 


S3 


10 


8 


7.8 


8.7 


100 


32 


14 


59 


10 


9 


8.5 


7.8 


107 


30 


14 


52 


11 


9 


8.3 


8.0 


212 


07 


20 


40 


11 


9 


8.3 


8.5 


359 


23 


23 


do 


9 


9 


7.0 


8.7 


180 


36 


25 


28 


9 


8 


7.1 


8.7 


141 


44 


24 


34 


9 


8 


7.0 


9.0 


123 


50 


27 


31 


9 


8 


7.8 


8.3 


105 


125 


24 


28 


10 


8 


7.6 


7.8 


89 


50 


29 


24 


10 


9 


7.8 


8.3 


73 


49 


31 


23 


9 


9 


8.0 


8.0 


04 


46 


30 


16 


8 


9 


7.4 


5.3 


61 


40 


27 


15 


8 


9 


8.0 


G.7 


80 


55 


51 


17 


9 


9 


8.7 


6.9 


VO 


42 


58 


14 


9 


9 


8.5 


6.9 


02 


40 


126 


14 


9 


9 


7.1 


5.4 


72 




196 


14 


9 


8 


G.4 


5.4 


58 




170 


9 


9 


8 


6.0 


7.1 


.'">(* 




110 




10 




0.4 


8.3 



2 1 

2. 4 
3.8 



8 

230 

38 
15 
13 



SAls DIEGO EIVER BASIIT. 



75 



Combined daily discharge, in second-feet, of San Diego River and flume near Lakeside, 
Calif. , for 1907-1916— Gontinwed. 



9.0 
9.0 
10.2 
10.9 

8.7 

7.6 
7.8 
8.7 
10.2 
9.9 



5.0 

4.2 
6.9 

7. 4 
6. 7 I 
5.8 
6.2 
5.6 
6.0 '. 



0.0 
.0 



.0 
.0 i 
2.2 i 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 



.0 
.0 
.0 
.0 
.0 



5.8 
6.0 
6.8 
6.0 
4.8 

2.2 
4.6 
6.9 
7.6 
6.9 

7.4 
7.1 
5.8 
5.6 
3.0 

.6 
.4 
2.8 

4.8 
5.4 

5.2 
5.2 
4.4 
3.2 
3.0 

5.0 
5.8 
4.6 
4.6 
4.4 



0.0 
.0 
.0 
.0 



4.2 
4.0 
4.8 
6.4 



6.7 
5.6 
3.3 
6.2 
5.6 



4.6 
5.0 

4.8 

4.8 



5.8 
2.3 
1.8 
3.9 
5.2 



4.6 
4.2 
4.6 



9.5 
9.5 
8.7 
6.9 



3.2 
4.2 
6.7 

40 
32 
22 
24 
22 



1.0 
.0 
3.0 



20 
47 
306 
127 

108 

74 
61 
51 

48 



38 : 34 
31 ■ 28 
59 I 30 
' 27 



G4 
41 
292 

170 

116 
82 
122 
121 
144 

180 
136 
107 
76 



48 
47 
40 
S9 



1.0 , 

1.0 

1.0' 

1:0 

1.0 



1.0 
1.0 



2.0 
5.0 
0.8 
6.4 
9.0 



1.0 
1.0 

LO 
1.0 



1.8 
1.5 
1.1 
1.3 
1.1 

1.0 
1.1 
1.0 
1.0 



111 

17.7 
195 
150 

60 



30 
26 
23 



158 
75 
60 

165 
215 



Apr. 


May. 


June. 


July. 


Aug. 


27 


20 


6.4 





7.8 


96 


20 


5.8 





8.3 


56 


15 


3.4 


.9 


7.8 


36 


12 


8.2 


7.1 


7.1 


41 


12 


8.2 


7.6 


7.4 


40 


9.8 


5.6 


8.0 


7.1 


67 


11 


3.6 


7.1 


7.4 


93 


11 


3.0 


1.0 


2.4 


67 


9.8 


2.9 








54 


9.2 


1.4 








44 


8.7 


2.9 








34 


8.7 


1.2 








16 


8.0 


1.5 





.9 


16 


7.8 


•1.1 


7.4 


6.7 


29 


8.7 


5.8 


8.5 


7.4 


29 


9.7 


6.6 


7.4 


7.8 


26 


8.2 


7.8 


5.0 


8.5 


27 


7.3 


7.6 


4.8 


9.0 


25 


7.1 


1.2 


4.6 


8. 5 


24 


5.8 


.2 


5.8 


7. () 


20 


4.6 


.2 


7.6 


5.G 


23 


2.7 


.2 


8.5 


3.0 


26, 


4.6 


3.0 


1.7 


1.2 


22 


8.2 


7.6 


Q 


1.3 


20 


8.7 


7.8 





1.8 


18 


9.3 


8.2 





3.2 


23 


9.7 


8.5 





6.7 


19 


9.7 


2.0 





7.1 


21 


7.8 


.2 


1.0 


6.9 


20 


6.0 


.2 


6.2 


5.8 




6.2 




7.4 


6.7 


164 


40 


16.2 


8.9 


5.7 


117 


40 


13.6 


7.8 


4.7 


96 


42 


12.5 


7.6 


7.7 


77 


43 


11.4 


8.0 


8.0 


78 


36 


11.2 


7.8 


8.5 


78 


35 


11.2 


6.6 


8.7 


70 


29 


11.7 


8.5 


8.0 


58 


157 


11.0 


10.4 


8.3 


57 


206 


10.5 


6.6 


3.9 


88 


106 


10.2 


7.8 


8.0 


216 


61 


•10.0 


7.8 


8.7 


319 


61 


9.5 


8.2 


8.5 


268 


43 


8.5 


8.7 


4.6 


254 


46 


9.0 


8.7 


4.0 


270 


36 


8.7 


8.5 


5.8 


258 


33 


7.8 


7.3 


7.1 


214 


28 


6.6 


7.6 


6.7 


137 


31 


4.4 


6.9 


7.4 


116 


31 


5.8 


7.5 


7.0 


95 


31 


7.6 


8.6 


7.6 


95 


28 


8.0 


7.7 


5.2 




30 


10.9 


8.1 


4.2 


72 


30 


11.2 


7.9 


2.0 


62 


28 


11.4 


8.6 


1.5 


62 


29 


10.6 


7.9 


S.0 


57 


28 


9.2 


6.3 


7.8 


50 


27 


9.2 


5.7 


1.1 


49 


22 


9.7 


7.0 


.0 


50 


21 


11.2 


8.1 


.0 


50 


21 


12.2 


8.1 


A. 




16.4 




6.8 


2.2 



Sept. 



76 SURFACE WATER OF PACIFIC SLOPE^ SOUTHERIS!' CALIFOPvNIA. 

Combined daily discharge, in second-feet, of San Dieao River and ftume near Lahesidcy 
Calif., for 1907-1916.— QontiuuQd. 



I)ay. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jime. 


July. 


Aug. 


Sept. 


1912-13. 
1.. 


1.4 
2.1 
2.1 
2.3 

8.7 

10 

11 
8.7 
5.6 
3.1 

1.2 
.2 
2.0 
2.0 

4.2 

2.5 
4.2 
3.6 
3.3 
4.2 

4.0 
4.2 
4.0 
3.6 
4.0 

4.2 
2.3 
2,5 
2.3 
2.1 
2.5 

2.0 
1.8 
.4 

is 

•'? 

1.4 

"4 
.5 

1.0 
1.0 
1.4 
1.0 

.9 

l.G 
. 5 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.2 
.0 


2.6 
2.5 
2.6 
2.0 
2.1 

3.1 
3.3 
2.5 
2.8 
3.0 

3.0 
3.1 
2.6 
2.6 

2.5 

2.5 
3.0 
2.5 

Si 

2.1 
2,0 
2.0 
2.0 
2.8 

2.6 
2.1 
2.0 
2.0 
2.1 


2.1 
1.6 
1.6 
2.3 

2.8 

2.5 
2.8 
2.3 
2.0 

1.8 

1.8 
2.0 
2.3 
2.1 
2.3 

2.1 
2.3 
2.5 

2.3 
2.5 

2.1 
2.3 
3.0 
2.8' 
3.1 

2! 8 
2.5 
2.3 
2.3 
3.0 


2.8 
2.3 
2.0 
2.0 
1.7 

.0 
.0 
.1 
.2 
.2 

.2 
6.9 
0.6 
6.0 
4.2 

4.8 
7.3 
7.5 
7.5 
6.9 

7.1 
5.4 
7.1 
6.4 
a 2 

4.6 
4.0 
3.3 
4.0 
3.0 
2.8 


2.8 
2.5 
2.3 
2.1 
5.0 

2.6 
3.6 
4.0 
4.2 
4.6 

5.8 
5.6 
5.6 
6.0 
6.9 

4.8 
3.5 
3.6 
3.5 
3.3 

3.5 

4.4 
7.7 
7.1 
9.7 

48 
34 
48 



18 
13 
11 
11 
13 

8.7 
11 
12 
12 
12 

13 
14 
13 
13 
13 

10 
12 
12 
12 
551 

922 
533 

332 
378 
128 

107 

87 
78 


38 
38 
32 
21 
22 

34 
29 
25 
24 
19 

20 
24 
33 
45 
45 

14 
25 

21 
16 

22 

28 
34 
20 
35 
45 

52 
33 
34 

24 
24 
19 

69 
62 
54 
48 

48 

41 
39 
37 
33 
32 

30 
29 
28 
28 
25 

25 
24 
23 
23 
22 

22 
21 
20 
19 
19 

19 
20 
25 
28 
25 
25 


20 
24 
26 
21 
21 

25 
20 
16 
10 
19 

15 
23 
11 
13 
14 

12 
13 
14 

14 
14 

14 
14 
10 
8.0 
10 

8.2 
8.2 
6.7 
5.5 
7.2 

26 
27 
22 
19 
19 

20 
19 

20 
18 
18 

18 
18 
18 
16 
15 

15 
14 
14- 

12 
8.1 

10 
14 
29 
24 
25 

24 
22 
21 
21 
36 


7.7 
7.3 
4.2 
3.8 
4.6 

4.2 
4.2 
4.1 
3.7 
4.2 

4,4 
4.6 
4.6 

4.8 
4.0 

4.2 
2.8 
2.8 
2.2 
2.2 

2.2 
1.9 
2.0 
2.0 
2.1 

2.8 
2.6 
2.8 
3.1 
2.8 
2.6 

36 
27 
27 
27 
26 

22 
21 
19 
15 
19 

17 
16 
.16 
15 
15 

14 
14 
15 
14 
12 

12 
10 
11 
10 
10 

11 
11 

10 
9.7 

8.5 
8.1 


3.3 
4.8 
3.5 
4.4 
4.0 

3.5 
3.1 
3.0 
2,8 
4.0 

3.6 
4.2 
5.0 
5.0 
6.6 

6.0 
6.0 
5.6 
3.6 
3.5 

4.0 
5.4 
7.1 
6.4 
6.2 

6.4 
6.0 
7.3 
6.6 

6.8 

H 

7.' 3 
7.1 

6.6 
6.6 
6.8 
8.5 
9.1 

7.8 
4.0 
5.5 
6.0 
4.2 

4.2 
2.8 
.8 
.5 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 


5.8 
5.4 
6.4 
4.2 
5.8 

3.6 
3,6 
4.4 
6,4 

6,4 

6,2 
5.8 
6.0 
6.8 

5.8 

6.0 
6.6 
6.4 
6.2 

6.4 

6.2 
4.4 
4.0 
3.5 
3.3 

2.6 
2.6 
2.8 
4.0 
3.6 
3.8 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 

4.8 

2.4 
3.5 
6.0 
6.0 
3.7 

6.8 
6.2 
5.2 
5.2 
5.4 

6.2 
6.0 
6.0 

4.8 
5.0 

4.8 
4.8 
4.6 
5.0 
5.0 
6.0 


3.5 
3,3 

2,8 
2,5 
2,6 

2.8 
2,1 
1.8 
2.5 
2.1 

2.3 
2.5 
2.1 
2.1 
2,0 

2,3 
2.3 
2.3 
2.8 
3,0 

3.5 
3,1 

2,6 
2,5 
2,5 

2,1 
2.5 
3.1 
2.8 
3.3 
3.6 

5.0 
4.8 
3.8 
3,8 
5.8 

4.0 
6.0 
6.8 
5.0 
4,0 

4.4 
3,3 
3,8 
4.4 
5.0 

5.0 
5.0 
5.0 
3,7 
4.4 

5.0 
6.0 
5.0 
4.0 
4.2 

4.6 
4.8 
4.8 
5.0 
3,8 
4.4 


2.8 
2.0 
1.4 
2.5 
1.3 

.7 
2.1 
2.8 
3.0 
1.8 

2:f 
2.5 
2.3 
2.5 

2 1 


2 


3 ... 


4 




6 




s 


9 


10.. 


]1.„ 


12 ... 


13 


14 


15 


16 


17 , ... 


lis 

1.4 
2.0 
2.0 

2,0 
1.6 
2.1 
1.8 
2.0 

1 6 


18... = 


19 


20 


21 


22 


23 


24 .......... 


2b...... 


28 


27... 


1.6 


2S 


1.4 
1 4 


29..... . . 


30. ..... . ... 


1.3 


31... 


1913-14. 
1 


5.2 










5 4 


3 








5,2 


4 








5 2 


6 








4,8 
4,8 


6 .. .. 
















4.8 


8 . 








4.8 


9 








4.8 


10.. . 








3 3 


11 . ..... 








3.8 


12 








4.0 


13 








3,5 


14 








3.3 


15 . 








3.5 


16 . . 








3.8 


17 








3,8 


18 








3.7 


19 








3.5 


20 








3,5 


21 








3,2 


22 








3,2 


23 








3,3 


21... 








3.5 


25 








3.5 


26 






.1 

908 
392 

96 

41 

22 


3.3 


27 






3.2 


28 






2.8 


29 






2.8 


30 . 






3.0 


31 









SAi^ DIEGO EIVER BASIN. 



77 



Combined daily discharge, in second-feet, of San Diego River and flume near Lakeside, 
Calif., for ^507-^916— Continued. 



July. 



3.3 
3.5 
3. J 



2.5 
2 A 
2.5 
1.1 
1.8 

1.1 

1.8 
1.8 



2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.1 
2.2 
2.0 
2.0 

2.0 
1.8 



2. J 
3.0 
2.8 
3.5 
4.8 



3.8 
3.! 



3.8 
5.0 
2.3 
1.5 
1.0 

1.3 
1.5 
.3 



3.3 

4.1 



3.3 
3.8 
3. 
4.1 

3.7 



2.3 
2.5 
3.0 

3.2 
3.0 
2.8 
2.1 
-2.2 

2.0 
2.2 
2.1 
2.2 
2.3 

2.1 
2.3 
2.3 
2.1 
1.5 



13 

16.5 
18.5 

14.5 

17 

12.5 
168 
910 
284 



116 
300 
911 
295 
142 



71 

57 
270 



410 
346 



171 
234 
202 
134 
160 

282 
216 
161 
152 
164 

238 
164 
137 



236 
236 
218 
204 
171 

207 
162 
144 
127 
112 



90 
90 



83 
73 
65 
64 

72 

66 
64 



66 
60 



42 
42 
42 

42 
42 
38 



58 
46 



442 
196 
210 

201 
141 
166 
105 
264 



356 
490 
515 
540 
1,300 

587 
420 
424 



454 
256 
222 
222 
208 

165 
162 
250 

227 
188 

156 
140 
141 
117 
125 

126 
113 
100 
GO 



76 
75 
73 
74 

75 



57 
53 
51 
43 



37 
36 
38 

31 
30 
30 

25 
26 

24 
24 



19 
18.5 
14.5 
12.5 



13 

14.5 



11.5 
11 

9.< 
11.5 
8.3 

8.5 
8.8 



10 

10 

10 

10 
9.3 
9.9 



6.0 
6.8 
7.0 
7.0 
7.0 

7.2 
7.2 
7.2 
7.0 

7.5 

7.5 
7.0 
7.0 
7.5 



7.0 

6.5 

7.5 



3.5 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 

5.1 
5.1 
5.1 



5.1 
6.0 
6.0 
6.0 
6.0 

7.5 
8.5 
4.5 
3.0 
5.3 

3.2 
4.1 
3.9 



3.4 
3.4 
3.5 
3.-; 

4.9 
5.1 
4.9 
4.9 



4.7 

4.7 
4.7 



7.2 
7.8 



7.2 
6.; 
6.5 
6.0 
10.0 



3.2 
5.1 

5.1 



1.8 
1.7 

1.9 
2.4 
1.4 
1.4 
2.9 

2.9 
7.0 
6.5 
1.9 

2.8 
1.7 



1,-530 
695 
570 
495 
360 

332 
332 
392 
255 

202 

210 
210 
280 
255 
318 

255 
265 
305 
332 
316 

532 
332 
219 
202 
202 

232 
332 
255 
265 



265 
280 



305 
210 
232 
232 
190 

190 
178 
202 
192 

182 

196 
182 
1^2 
139 
269 

402 
395 
434 
352 
344 

385 
330 
275 
225 
175 
160 



IGO 
167 
162 
163 



134 
134 



141 
144 
134 



108 
100 
98 
90 



86 

87 



84 
85 
83 



70 
70 
68 
67 



60 
67 
66 

58 
54 

67 
49 
49 
48 
5-1 



53 
53 
56 
58 



45 
44 



38 
36 

83 

29 
32 
31 



30 

28 



26 
28 
25 
22 
22 

20 
20 
20 
21 
20 



18.5 
15 

13.5 
14 



12 
12 

11.2 

12 

12 

15 

17 

19 

14.3 

11.5 



8.5 
7.3 
6.5 

7 
7 
8 



78 SURFACE WATEE OF PACIFIC SLOPE^ SOUTHERN CALIFORNIA. 

Corahined monthly discharge of San Dieqa Hlver and Jlume near Lakeside, Calif., for 1907- 

1916. 



Month. 


Discharge in second- 
feet. 


Run-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Rim-off 

(total in 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1907. 

January 


1,050 
261 
943 
326 
104 

43 

11.5 

14 

10.5 


35 

37 

62 

79 

37 
9.3 
8.6 
6.3 
5.7 


188 
90.5 
246 
165 
57.0 
24.4 
10.2 
8.92 
9.24 


11, 600 

5,030 

15, 100 

9,820 

3,500 

1,450 

627 

548 

550 


1911-12. 
October 


2.2 
.0 
3.0 
3.0 
1.8 
289 
319 
206 
16.2 
10.4 
8.7 
4.4 


0.0 
.0 
.0 
.0 
.9 

2.0 
49 
16.4 

4.4 

5.7 
.0 

1.6 


0.08 

.00 

.13 

.78 

1.06 

66.0 

122 

45.7 

10.0 

7.81 

5.55 

2.73 


5 


February 

March \ 


November 

December 

January 




8 




48 


May • 


February 


61 


June 


March 


4 060 


July 


April 


7*260 

.2,819 

595 


August.. 

September 


May 




July 


480 
341 


The period . 








48,200 












September 

The year 

1912-13. 
October 


162 


1907-8 
October 


9.2 
7.3 
10 
110 
306 
134 
40 
37 
8.6 
8.9 
9.2 
9.7 


2.9 
.3 
.6 
3.2 

25 

16 

13.5 
6.7 
6.3 
4.3 
1.8 
5.0 


6.63 
3.36 
3.38 
21.9 
82.6 
47.8 
20.9 
14.2 
7.28 
7. 58 
7.20 
7. 47 


408 

200 

208 

1,350 

4,750 

2,940 

1,240 

873 

433 

466 

443 

444 


319 


.0 


21.8 


15, 800 




December 


11 
3.3 
3.1 

7.5 

48 

26 _ 

7:3 
6.6 
3.6 
3.0 


.2 
2.0 

:o 
2.1 

14 
5.5 
1.9 

2.8 
2.6 

1.8 


3.81 
2.47 
2.29 
3.97 
8.70 
28.9 
14.8 
3.62 
4.86 
4.80 
2.62 
1.89 


234 


January 

February 

March 


November 

December 

January 


147 
141 








February 

March ' 




May . .... 


483 


















May 


















September 


July 


2:)5 




306 


.3 


19.0 


13, 800 




161 


The year — 


September 

The -j-ear 

1913-1 i. 
Oetob'^r 


112 


1908-9. 

October 

November 


8.0 
6.3 
5.5 
2,550 
1,320 
394 
139 
43 
19 
13 
268 
11 


4.6 

2.6 
.3 

2 
50 
51 
46 
20 

9 

4 
.0 

5 


6.76 
5.22 
2.74 
155 
285 
124 
83.5 
30.6 
14.7 
10.4 
23.6 
7.40 


416 

311 

168 

9,530 

15, 800 

7,620 

4,970 

1, SSG 

875 

640 

1,450 

440 


52 


.0 


6.88 


4,990 


2.0 
.0 
.0 
908 
922 
69 
36 
38 
9.1 
6.S 

5:1 


.0 
.0 
.0 
.0 

8.7 
19 
8.1 
8.1 
.0 
.0 

2:8 


.64 

.0 

.0 

47.1 

120 

31.1 

19.4 

16.1 

3.66 

3.56 

4.59 

3.88 


39 


December 

January 

February 

March :.. 

April. 

May..... 

June.. 


November 

December 

January . 





2,900 
6,660 
1,910 
1,150 


February 

March..: 


May 


990 


August 


Juno 

July 

August 

September 

The year 

1 1914-15. 

1 Cctober 

Novejiiuvc 

Deeeniber 

January.... 


218 


September 


219 

282 


The year 


2,550 


.0 


61.0 


44, 100 


231 


1909-10. 

October 

November 

December. .. 

•January 

I^'ebruary 

Majch.. ......... 

Iprp 


8 

230 
468 
.125 
196 

83 

16 

10 

10 
9 

10.7 


3 

1 

2 
50 
28 
14 

9 

8 

6 

6 

5.4 

1.3 


5.87 
4.70 
31.3 
159 
51.2 
46.0 
39.8 
.10.9 
8.68 
7.89 
7.80 
8.50 


360 

280 

1,920 

9,780 

2,840 

2.830 

2; 370 

670 

516 

485 

480 

506 


922 


.0 


20.1 


14,600 


6.3 
5.0 
4.8 
910 
1,580 
283 
442 
1,300 
76 
19 
10 
11 


1.6 
.0 
.0 

1.5 

62 

35 

86 

18 
7.8 
4.9 
1.4 


2.32 
1.81 
.99 
48.6 
282 
142 
101 
289 
39.9 
11.2 
7.62 
6.31 


143 

103 

61 

2,990 

15, 700 


March 


8,730 


May::::::::::::: 


April 

May 


6,010 

17,800 


Julv 

August 

September 




2,370 


July 


689 


August 

-September 

The year...- 

1915-16. 
October . 


469 
375 


The year — 


486 


1 


31.8 


23,000 


1,580 

8:5 
11.5 


.0 76.5 


55,400 


1910-11. 

October 

November 

December 

January 

February........ 

March 


12 
7.6 
7.8 

40 
660 
292 

96 

20 
8.5 
8.5 
9.0 
6.7 


.0 
.4 
1.8 
2.5 
13 
26 
16 
2.7 
.2 
.0 
.0 
.0 


7.27 
4.83 
4.99 
10.1 
93.6 
80.8 
35.3 
9.26 
4.18 
3.47 
5.19 
3.05 


447 

287 

307 

621 

5,200 

4,970 

2,100 

569 

249 

213 

319 

181 


3.5 1 6.35 


390 


November 

December 


3.0 
1.4 


4.71 
4.74 
2,420 
361 
261 
117 
57.2 
27.4 


280 

291 

149,000 

20,800 

16,000 


February 

March 


i,5ao 

4^4 

167 
76 
40 
18.5 
14.5 
14.5 


202 
139 
79 
42 
20 




April 


6,960 


liar . . 


May 


3,520 




June 


1,630 


Jllly 


July 


6. 5 11. 9 

5. 3 7. 49 
3. 9 8. 72 


732 


August 

September... 


August 

September 

Th'^ year 


461 
519 


The year.... 


660 


.0 


21.8 


15, 500 






276 


201,000 











SAN DIEGO EIVEK BASIN. 



79 



SAN BIEGO Kl\»!Em SE^S, SAITTEE, CALTF. 

Location. — In tract T, El Cajon grant, at old Mission dam. below Spring Canyon and 
just above Oak Canyon, about 4^ miles west oi' Santee, San Diego County. 

Drainage area. — 375 square miles (measured on topographic maps). 

Elevation. — About 275 feet above sea level. 

Records available. — ^May 25. 1912, to September 30, 1918 (record not complete). 

Gage.— Staff in two sections installed December 12, 1916; lower section bolted to 
upstream face of old dam near left end; upper section faBtened to large sycamore 
tree on left bank just above dam. Original gage was at wame datum and at prac- 
tically same site except that low-water section was at right of ])reak in dam. Gage 
datum 566.42 feet above sea level. 

Discharge measurements. — Made from cable about 500 feet a])OT-e gage or by 
wading. 

Channel and control. — Bed composed of sand; eliifting. The old dam serves as 
part control. May 10, 1913, a concrete weir, having steel plate's for crest and sides, 
was installed at old break in dam. This weir was parth' destroyed by drift 
Peb-ruary 2, 1915. The flood of Januarj^, 191G, wrecl-red weir and caused some 
change in control near left bank. (See Pi. XVIII. A. p. 493.) 

Extremes of discharge. — 1912-1918: Maximum stage recorded. 25.1 feet January 
27, 1916 (discharge, 70,200 second-feet); no flow for several months each year, ex- 
cept for a small quantity of ground water that rises to surface at dam. 

Diversions. — See San Diego River at Lakeside. Water for irrigation is pumped from 
wells along the river below Lakeside. 

Kegulation. — None except as noted for station at Lakeside. (See p. 65.) 

Accuracy. — Stage-discharge relation fairly permanent. There have been minor 
changes in control but all are covered by rating curves fairly well defined except 
for flood stages. Gage usually read to half- tenths once daily. Daily dis- 
charge ascertained by applying gage height to rating ta])le. Records good for 
periods in which gage was read regularly. 

Cooperation. — ^Gage-height record obtained in cooperation witli Charles Sampson, 
general manager, La Mesa, Lemon Grove & Spring Valley Irrigation District, and 
Ed. Fletcher, manager, Cuyamaca Water Co. 

Discharge measuremenU of San Diego River near Scmlee. Calif ..for j'91l^-1918. 



Dc-ite. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made bj-— 


Gar-e 
height. 


DiR.. 
charge. 


1912. 






Feet. 


Sec.-ft. 


1915. 




Feet. 


Scc.-/t. 


May I 


1^' 


C. Fbert 


7.66 


33 


Jan. 22 


Eeeand Sleepy 

F.C. Ebert 


8 14 


17 






..do 


7.47 


23 


Jan. 29 


12. 26 


1,050 


11 


i<: 


W.Case 


8.79 


126 


30 


do 


12.86 


1.980 


25 


K 


C. Ebert 


7.39 
7.15 


14 ^ 


31 
Feb. 3 


do 

K. B. Slecr-v 


n.30 

11.85 


'492 


June 6 


A.Eartl 


931 


Aug. 17 


F 


C.Fhert 


7.08 


a .05 


8 


do.,, 


9.20 


112 


Dee. 16 


Taylor and Harriett 


7.30 


f^-.l 


Mar. 4 


F.C.Ebcr; 


10.8 


430 


19 


F 


C. Ebert 


7.31 


a. 3 


9 
Apr. 1 


do 

Eberr. and Day 


9.77 

7.85 


219 






55 


1913. 










H 


F. C. Ebert 


7.83 


51 


Feo. 15 


\\ 


. S. Posi 


7. 22 


a. 3 


16 


11. W. Dav 


7. 37 


28 


28 


1-: 


W. Case 


7.79 


26 


May 18 


F.C. Ebert 


U. SO 


219 


Mar. 11 




-.do 


7. 23 


5.4 


June 21 


McCluiig and iCllis 


7. 70 


14 


14 


h' 


C. Ebert .-... 


7.63 


25 


July 7 


F. C. Ebat 


6.77 


a. I 


17 




.CO 


7 40 


14 


Aug. 1 

Dec. 9 

21 


do 


6 30 


a. 05 


Apr. 12 


"li 


..do 


7.14 
7.07 


.6 
.2 


do 


7.62 
7.62 


a. 1 


17 


I). McGlashan 


do.. 


n.l 


1914. 










1916. 








Jan. 27 


vv 


. S. Post 


12.6 


929 


Mar 12 


McGls^r.an and Fbe;"t 


8 35 


206 


28 


.^. 


C. Ebert 


10.35 
8.30 


271 
23 


20 
Apr. 13 


F C Ebert 


8.42 
8.07 


238 


T, "-^ 


..do 


do 


155 


Feb. 2 




..do 


8.00 


9.2 


15 


do..... 


7.77 


122 


Mar. 2 




-.do 


9.94 


69 


21 


do..... 


7.33 


69 


6 




-.do 


8.63 


49 


Apr. 26 


do 


7.28 


76 


, 24 




..do 


7.73 


2.9 


May 8 


do 


6.77 


36 


Apr. 19 




-.do 


7.61 


a.l , 


27 


do 


6.58 


25 


May 13 




..do 


7.64 


a. 3 


June 12 


do 


5.78 


1.8 



a Estimated. 



80 SURFACE WATER OF PACIFIC SLOPE, SOUTHERl^ CALIFORNIAo 
Discharge tneasurenients of San Diego River near Santee, Calif., for 1912-1918 — Contd. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


height. 


Dis- 
charge. 


1916. 
June 28 


F. C. Ebert 


Feet. 


Sec.-ft. 
0.04 
a, 02 
a. 02 

4.7 

175 
141 

39 
146 
126 
105 

45 
149 

85 

24 
.3 
.1 


1918. 

Jan. 4 

Feb. 7 

Mar. 6 

9 

11 

11 

11 

12 

12 

13 

14 

16 

May 8 


F. C. Ebert 


Feet. 
3.84 
3.84 
3.88 
3.85 
5.35 
10.11 
11.10 
12.8.5 
12.20 
10.95 
8.40 
7.10 
4.00 


Sec.-ft. 
2 


July 16 
Aug. 29 
Dec. 19 


do 

do 

W. J. Isbell 


'"4." 93' 

7.38 
6.92 
5.72 
6.95 
6.80 
6.52 
5.78 
7.03 
6.40 
5.24 
3.94 
3.82 


D. A. McClung. 

F.C. Ebert 

do 

do 

do 

do 

do 

do 

do 

do 

.....do 

do.. 




.09 
.26 
2 


1917. 
Jan. 22 

23 
Feb. 15 

19 

20 
Mar. 12 

29 
Apr. 18 

20 
May 23 
June 28 


F.C. Ebert... 

do 

do 

do 

do 

do 

do 

McGlashan and Ebert.. 
do 

F. C. Ebert 


38 

1,070 

1,810 

7,810 

4,950 

1,750 

500 

191 

1.1 


D. A. McClung 






Dec. 23 


F.C. Ebert 















a Estimated. 
Daily discharge, in secondfeet, of San Diego River near Santee, Calif,, for 1912-1918. 



Day. 


May. 


June. 


Day. 


May. 


June. 


Day. 


May. 


June. 


1912. 




1.7 
6.0 
.9 
.9 

.4 


1912. 
11 




0.1 
.1 


21. 
22. 
23. 
24. 
25. 


1912. 








2 




12 

















13 












■ 4. . 




14 












5 




15. 








14 

14 

14 
7.8 
7.8 
7.0 
7.0 




6 




16.... . 










? 




17 








27. 
28. 
29. 
30. 
31. 












18 












9 




19.. 












10 




20 






































Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


1912-13. 
1 




0.3 
. 3 


14. 

5 

4 
5 

2 

'.2 
5 

12 


26 
16 
9 

8 
8 

8 
6 
6 

5 

5 

12 
18 
31 
28 


28 
24 
24 
21 
18 

16 
14 
10 

6 

3 

le 

.6 

.4 

• .4 


1912-13. 
16 


0.1 


0.2 

:i 

.2 
.2 

.2 

.'2 
.2 
.2 

.2 

5 

12 
26 


0.3 
.3 
.3 

.2 
.1 
.1 
.1 
.1 

.1 
.1 
26 


12 
10 

3 
3 

5 
10 
iO 

38 
38 

46 
38 
28 
28 
34 
31 


0.2 


2 




17 


.2 


3... 




.3 
.3 
.3 

.3 
.3 
.3 
.3 
.3 

.2 
.2 
.2 
.2 
.2 


18 




.2 






19 


.3 


.2 


5 




20 


.2 


6 




21 




.2 


7 




22 




.1 


8 . 




23 




.1 


9 




24 




.1 


10 




25 




.1 


11 




26 




.1 


12 




27 




.1 


13 




28 




.1 


14 




29 


c3 
.3 
.3 


.1 


15 




30 




.1 






31 



























SAN DIEGO RIVER BASIN. 81 

Daily discharge, in second-feet, of San Diego River near Santee, Calif., for 1912-1918 — Con. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


1913-14. 
1 


0.1 


18 
9.7 
9.7 

6.7 
5.4 

4.8 
4.1 
4.1 
3.7 
2 

1 

.5 
.5 
.4 
.3 


77 
74 
67 
60 
54 

47 
43 
39 
35 
31 

27 
23 
19 
15 
11 


15 
9.7 
6.7 
4.1 
3 

2.7 
2.4 
2.1 
1.9 


""26" 
9.7 


1913-14. 
16 


0.1 

50 
930 
370 
116 

40 

26 


0.2 
.1 
.1 
.1 
715 

2,300 
715 
418 
244 
150 

110 

87 
80 


7.6 
7.6 
7.6 
5.4 
5.4 

3.2 
3.2 
3.2 
2.3 

2 

1.5 
2 

4.1 
6.7 
9.1 
20 






2 


17 






3 


18 


.2 




4 


19 




5 


20 






6 


21 






7 


22 






8 


23 






9 .... 


24 






10 


25 






11 






26 






12 






27 






13 




.3 


28 






14 




29 






15 






30 














31 


















Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May 


June. 


Day. 


.Tan. 


Feb. 


Mar. 


Apr. 


May 


June. 


1914-15. 
1 


0.1 


209 

1,840 

1,160 

570 

332 

250 
185 
120 
105 
710 

3,410 

1,060 

638 

465 

332 


738 
660 
450 
465 
355 

332 
289 
232 
206 
198 

310 

263 
228 
196 
181 


64 
59 
54 
51 
45 

39 
36 
34 
29 
26 

22 
22 
22 
22 
30 


515 

830 

970 

1,320 

2,120 

895 
615 
570 
465 
405 

355 
289 
234 
202 
170 


41 
37 
34 
30 

27 

20 
14 
13 
11 
10 

8 
7 
5 
4 
3 


1914-15. 
16 


0.1 

16** 
1.9 
1.0 
.5 

.2 
.1 
.1 

,090 

>,0G0 

500 


289 
334 
380 
310 
480 

530 
380 
269 
215 
465 

289 
232 
198 


167 
142 

lao 

119 
109 

99 

89 
72 
72 
72 

64 
64 
64 
80 

72 
68 


39 
34 
29 
22 
70 

119 

430 
319 
430 
212 

167 
142 
109 
263 
550 


141 
155 
269 
250 
186 

128 
104 
94 
75 
66 

58 
66 
58 
51 
48 
44 


1 


2 


17 


4 


3 


18 


6 


4 


19 . . . 


9 


6 


20 


11 


6 


21 


14 


7 


22 


12 


8 


23 


10 


9 


24 


8 


10 


25 


6 


11 


26 


4 


12 


27 


2 


13 


28 


. 1 


14 


29 ] 

30 i 


.1 


15 




.1 




31 














Day. 


Mar. 


Apr. 


May. 


Jiine. 


Day. 


Mar. 


Apr. 


May. 


June. 


1915-16. 
1 




199 
199 
191 
191 
183 

176 
168 
153 
153 
153 

153 
153 
160 
139 
126 


48 
45 
43 
41 
39 

36 
34 
32 
30 
27 

26 
24 
24 
30 

27 


16 
15 
13 
12 
10 

9 
8 
6 
5 
4 

3 

2 
2 
2 
1.5 


1915-16. 
16 




108 
96 
91 

86 
81 

76 
76 
72 

72 
72 

72 
64 
56 
53 
51 


24 
26 
27 
24 
30 

28 

27 
26 
24 

2i 

24 
24 
22 
21 
19 
18 . 


1.5 


2 




17 




1.5 


3 




18 . 




1.0 


4 




19 




1.0 


5 




20 




1.0 


6 




21 




.5 


7 




22 . . . 




-5 


8 




23 .. 




.5 


9....... 




24 




.1 


10 




25 




.1 


11 




26 




.1 


12 




27... 




.05 


13 .. 




28 




.05 


14 




29. .. 




.0 


15 - 




30. .. 


215 
199 


.0 






31 






1 
















1 
















1 





142131°— 21— wsp 447- 



82 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of San Diego River near Santee, Calif., for 1912-1918 — Con, 



Day. 


Dec. 


Jan. 


Feb. 


Mar. 


. Apr. 


May. 


June. 


1916-17. 
1 




89 
155 
116 
98 
80 

65 
72 
80 
72 
136 

50 
48 
47 
59 
126 

116 
116 
147 
218 
308 

267 
104 
107 
98 
94 

89 
89 
84 
80 
72 
68 


65 
59 
53 
50 
44 

42 
42 
40 
37 

42 

40 
42 
4-2 
42 
42 

37 
89 
158 
142 
126 

116 
147 
980 
374 
280 

254 
218 
194 


170 
116 
84 
80 
80 

80 
80 

89 
116 

89 
89 
80 
94 
89 

84 
80 
59 
59 
59 

59 
65 
59 
50 
53 

50 
53 
50 
42 
42 
44 


47 
47 
42 
40 
33 

33 
33 
31 
37 

76 

59 
50 
50 
44 
37 

430 
340 
194 
102 
112 

89 
80 
65 
65 
62 

53 
47 
50 
53 
53 


50 
44 
42 
40 
37 

33 
30 

27 
40 
42 

33 

29 
27 
22 
19 

17 
16 
29 
44 
32 

27 
24 
24 
22 
56 

47 
40 
42 
40 
37 
35 




33 


2 




20 


3 




19^ 


4 




17 


5 . 




1& 


6 




15 


7 




14 


8 




12 


9 




9.5 


10 . . 




7.5 


11 




6 


12 




4.8 


13 




4.0 


14 




3.2 


15. . 




3.0 


18 




2.8 


17. . . 




2.6 


18 




2.4 


19 


4.5; 

3,5 

2.5 
2.5 
2.5 
5 
147 

136 
107 
107 
107 
107 
107 


2,2 


20 


2.0 


21 


1.8 


22 


1.6 


23 


1.4 


24 


1.2 


25 


1.0 


26 


.» 


27 


.5 


28 


.3 


29 


.2 


30 




.1 


31 - - 












Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Day. 


Dec. 


Jan. ■ Feb. 

i 


Mar. 


Apr. 


May. 


1917-18. 
1 








0.2 
.2 
.2 
.2 
.2 

.3 
.3 
.5 
.2 
.2 

127 
5,350 
1,220 

462 

308 


38 
35 
32 
30 
30 

28 
21 
18 
16 
14 

12 

8 
8 
8 


2 
2 

2 
2 
1 

1 
1 
1.1 


3 
] 
] 
1 

2 

a 

3 


1917-18. 
6. 






201 
138 
117 
376 
475 

288 
161 
117 
108 
99 

82 
74 
67 
63 
47 
41 


5 

1 

5 

4 

4 
4 
4 
4 
3 

3 
3 
3 
3 
2 




2 
















3 








8 








4 




0.2 
.2 




9. 








5 











6. 




1. 






7 






0.2 


2 






8 






3 


0.1 






9. 








4 






10 








5. 


; 




11. 








6. 


i 




12. 








7 






13 








8. 


, I 




14 








9 


1 




15... 








0. 














1 










! 1 











Note, — Daily discharge determined as follows: 

1912-13: Dec. 29, 1912, to Jan. 27, 1913, estimated; Jan. 28 to Feb. 28 and Mar. 11 to Apr. 5, 1913, froH* 
fairly well-defined rating curves: Mar. 1-10 and Apr. 6-30, by shifting-control method. 

1914: Jan. 1-26, estimated. Gage-height not recorded Feb. 6, 10-19, 25 to Mar. 1. Mar. 3-5, 7-15, 22, 25^ 
27, and Apr. 6-8; discharge interpolated. Discharge for remainder of 1914 from well-defined rating curve. 

1915: Jan. 1 to Feb. 2, from well-defined rating curve; Feb. 3 to June 30, from fairly well-defined rating 
curves. Gage height not recorded Jan. 24-28, Feb. 7 and 17, Mar. 24 and 31, Apr. 2, 7, 12-13, 15, 17, 20, May 
30 to June 4. June 6, 7-15, 17-20, and 22-30; discharge interpolated. 

1915-16: No record Oct. 1, 1915, to Mar. 29, 1916. Gage not read Apr. 29 to May 7, May 9, 11, 15, 17, 21, 
23, 25, and May 28 to June 30; discharge interpolated. 

1916-17: Gagenotread Dec. 22-24, 28, 30, 1916, Jan. 2, 4, 7, 12, and June 15-20, 1917; discharge interpolated. 

On days for which discharge is not pven, except for periods explained above, there was no flow except 
small quantity of ground water rising to surface just above dam. 



SAF DIEGO EIVEE BASIISf, 83 

Monthly discharge of San Diego River near SavJee, Calif., for 1912-1918. 



Month. 


Discharge in second- 
feet. 


Run-Off 
(total in 


Month. 


Discharge in second- 
feet. 


Run-oflf 
(total 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


Maxi- 

muin. 


Mini- 

inum. 


ilean. 


m acre- 
feet). 


1912-13. 
October 






0.05 
.1 

.2 
1.72 
3.75 
17.2 
5.64 
.05 
.05 
.05 
.05 
.05 


3 

6 

12 

106 

208 

1,060 

336 

3 

3 

3 

3 

3 


191.5-16. 

March 30-31 

April 


215 
199 
48 
16 


199 
51 
18 
.0 


207 
121 
28.8 
3. .88 


821 








7,200 


December 






May 


1,770 


January 


26 
26 

46 

28 


0.2 
.1 

3 
.1 


June 


231 


February 

March 


The period-. 








10,000 


April 


1916-17. 

' December 19-31.. 
January . . 






May 


147 
30& 
980 
170 
430 
56 
33 


47 
37 
42 
31 
16 
.1 


64. o 

111 

136 
74.7 
81.8 
33.8 
6.8:5 




June 








July 






1, 669 











August .. 






September 






March . .'. 










4,.590 










1,750 


April . 


4,870 




: May 

Jmie 

The period... 










2, 080 


1913-14. 


930 
2,300 


.1 
.1 
1.5 


49.5 
175 
23 


3,040 
9,720 
1,410 


405 


January 








28, 0(10 


February 

March 


1917-18. 
December. . 












" .1 
«.2 
ffl.2 
320 
12.1 














14,200 


&. 1 




January ' 
















2,060 

3,410 

738 

550 

2,120 

41 


0.1 
105 
64 
22 

44 
.1 


118 
563 
212 

116 
379 
11. 7 


7,260 
31, 300 
13,000 

6,900 

23,300 

C96 








il. 1 


1914-15. 
January 


March 

April 


5,350 
38 


.2 
2 


19,700 
72a 


Februaiy 

March 


May 


43.0 


The year,... 




April 


5,350 


.0 


28.3 


20, 500 


May.. 




June 








The year , . . 






82,500 













SAF BIEGO RIVER AT SAN DIEGO, CALIF. 

Location. — At highway bridge in Block 3&1, Old Town subdivision, city of San Diego 

San Diego County, about 1^ miles above mouth. Station has also been maintained 

at Murray Canyon ford, in Ex Mission San Diego grant, al>out 3| miles north of 

San Diego and 2| miles al)ove station at highway bridge. 
Drainage. — 434 square miles: 431 squai'e miles at Murray Canyon ford (measured on 

topographic maps). 
Elevation. — Sea level. 
Records available. — October 1, 1912, to December 19, 1914; January 1-31, 1916. 

At Murray Canyon ford, December 20, 1914, to September 30, 1915. 
Gage. — Staff on left bank at highway bridge. At Murray Canyon ford staff was in two 

sections just above ford; lower section in center of channel ; upper section on left 

bank. Gages not at same datum. 
Discharge measurements. — Made from liighway bridge at Old To-wn or by wading. 

When measurements were made from bridge, during 1914-15, frequent readings 

were also made at Murray Canyon gage. 
Channel and control. — Sand; shifting. The concrete driveway built across channel 

at Murray Canyon served as a part control but results were not A-er;.- satisfactory as 

sand collected on the concrete. 
Extremes of discharge. — 1912-1916: Maximum stage recorded, 19.3 feet (gage at 

highway bridge) January 27, 1916 (discharge, 75,000 second-feet); no flow for 

several months each year. 



84 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Diversions. — See San Diego River near Santee. Water is pumped fi om gravels in 
Mission Valley above station. Record at this station shows quantity of water 
wasted into Pacific Ocean. 

Regulation. — None except as noted for station at Lakeside. 

Accuracy. — Stage-discharge relation not permanent. Rating curves usually well 
defined except for flood stages. Gages usually read to hundreths twice daily ; read 
frequently during floods. Daily discharge ascertained by applying mean daily 
gage height to rating table or by shifting-control method; for January, 1916, 
taken from a hydrograph drawn through discharge measurements and conform- 
ing in general shape with that determined for San Luis Rey River at Oceanside. 
Records fair. 

Discharge measurements of San Diego River at San Diego, Calif., for 1913-1916, 



1913. 
Mar. 14 



Apr. 8 
14 

1914. 
Jan. 27 
29 
31 
Feb. 2 
3 
7 

17 
19 
20 
Mar. 5 
8 
19 
27 
28 



1915. 

Jan. 29 

29 

30 

Feb, 2 

9 

Mar. 9 



Made by— 



F. C. Ebert 


Feet, 


W.S.Post 


6.44 


E. W.Case - 

....do 

F.C. Ebert 


6.64 
6.25 
6.01 


W. S. Post 


7.56 


F C Ebert 


7.40 


W. E. Keenan 


6.76 


F.C. Ebert 


6.46 


W. E. Keenan 


6.36 


....do 

....do 

Raylor and McFadden . 
Hickok and Keenan. . . . 
W. E. Keenan . 


6.18 
6.13 
6.58 
9.15 
6.67 


.-..do 

....do 

F C. Ebert 


6.56 
6.25 
6.15 


W.E. Keenan 


6.20 



Lee and McFadden . 

....do 

W.D. McFadden... 
Keenan and Armstrong 

F.C. Ebert 

....do 



Gage 
height. 



9.74 
11.25 
10.35 
2.34 
3.02 



Sec.-ft, 




1.1 

.05 



U4 
30 



18 
688 

54 

37 
9.7 
2.4 
4.2 
1.3 



574 
955 
2,380 
1,690 
107 
250 



1915. 
Apr. 3 

19 
May 5 

20 
June 2 

21 
Aug. 1 

1916. 

Jan. 17 

17 

18 

19 

20 

21 

22 

28 

29 

Feb. 5 

Mar. 18 

29 

Apr. 3 

17 

22 

May 10 

June 8 

Nov. 7 

Dec. 30 

Nov. 7 

Dec. 30 



Made by — 



Ebert and Keenan 

V/. D. McFadden 

Isbell and McFadden. . 

F.C. Ebert 

D.L.Lee 

McClung and Ellis 

F.C. Ebert.. 



R.H.Day... 

do , 

-do. 



Ellis and McFadden . 
do 

W. D. McFadden.... 
-do. 



Ellis and Day 

R.W.Day.. 

W.D. McFadden 

McGlashanand Ebert. 

T.P.ElUs 

R.W.Day 

do 

.do. 



McClung and Culver . 

do 

R.W.Day 

W. D. McFadden... - 

R.W.Day 

W.D. McFadden.... 



Gage 
height. 



Feet. 
2.38 
L92 
9.71 
2.90 
2.42 
L90 



13. 55 
13.45 
13.34 
12.1 
9.1 
7.8 
7.1 
9.9 
9.98 
9.5 
9.55 
9.64 



9.38 
9.14 
8.37 



i.l9 



Dis- 
charge. 



Sec.-Jt. 
55 
17 

1,130 
187 
65 



a 10, 400 

a 10, 100 

a 7, 380 

a 8, 650 

a 2, 180 

1,820 

1,270 

11,100 

6,560 

1,100 

190 

305 

232 

104 

102 

29 

.07 



14 



14 



a Float measurement. 
Daily discharge, in second-feet, of San Diego River at San Diego, Calif, for 1912-1916 



Day. 


Mar. 


Apr. 


Day. 


Mar. 


Apr. 


Day. 


Mar. 


Apr. 


1912-13. 
1 




4 
5 
4 
2 
.4 

.4 
30 


1912-13. 

8. .. . 




0.05 
.05 
.05 

.05 
.05 
.05 
.05 


1912-13. 
15 




0.05 


2 




9 




26 


2 
11 
18 
16 
5 
2 




3 




10 






4 




11 




27 




5 




28 








12 




29 




6 


13 




30 




7 




14 




31 

















SAN DIEGO KIVER BASIN. 



85 



Daily discharge, in second-feet, of San Diego River at San Diego, Calif, for 1912-1916— 

Continued. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


1913-14. 
1 . ... 




22 
12 
7 
4 
2 

1 
1 
1 










82 
75 
62 
62 

55 

49 
43 
38 

32 
27 

22 
22 
18 
18 
13 


20 
18 
13 
13 
9 

6 
3 
3 
1 









22 


1913-14. 
16 







5 
710 

1,820 

1,350 

422 

234 

222 

186 
124 
90 


13 
9 
13 
13 
13 

13 
9 
9 
6 
6 

6 
6 
6 
13 
18 
22 






2 




17 








3 




18 








4 




19 








5 




20 








6 




21 








7 




22 








8 




23 








9 




24 








10 




25 








11 




26 








12 : 




27 


237 
820 
188 
105 
34 






13 




28 .... 






14... 




29 






15 




30 












31 


















Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


1914^15. 
1 




390 
1,310 
2,120 
1,110 

635 

400 
315 
160 
100 
590 

2,480 

1,940 

1,200 

780 

465 


425 
740 
640 
465 
425 

310 
310 

280 
245 
235 

220 
210 
195 
185 
170 


55 
45 
40 
38 
35 

40 
37 
38 
40 
37 

27 
20 
15 
16 
16 


385 
530 
425 
555 
1,160 

885 
780 
535 
468 
400 

302 
285 
250 
215 
215 


74 
74 
74 
70 
63 

55 
53 
53 
42 
36 

34 

28 
25 
22 
16 


1914-15. 
16 




405 
385 
365 
345 
310 

740 

485 
310 
260 
345 

385 
245 
245 


155 
145 
130 
120 
100 

90 

85 
80 
75 
70 

65 
60 
55 
65 
60 
60 


17 

23 
26 
15 
8 

5 
100 
215 
215 
185 

165 
120 
110 
110 
170 


200 
165 
215 
250 
178 

165 
160 
160 
148 
135 

125 
118 
110 
103 
90 
74 


12 


2... 




17 




10 


3 




18 




2 


4 




19 




15 


5 




20 




1 


6 




21 




.7 


7 




22 




.6 


8 




23 




.4 


9... 




24 ... 




.3 


10 




25 




.2 


11... 




26 




.1 


12 




27 




.1 


13 




28 ... 




.1 


14 




29 


780 
2,240 




15 




30 










31 . 


1 om 








r""' 








Day. 


Jan. 


Day. 


Jan. 


Day. 


Day. 


1915-16. 
1 






11 
12 
13 
14 
15 

16 
17 

18 
19 
20 


1915-16. 









21. 

22. 
?3 


1915-16 




1,760 


2 














1,310 


3 














1,380 
1,260 


4 










2 

9 


4 






5 










^ 






1,280 


6 










26. 
27. 
28. 
29. 
30. 
•^1 






3,000 
38,000 
13,200 


7 








13 40 






8 








12, 700 
7,320 
2,550 






9 












5,980 


10 












2,750 














1.280 






































Note.— Daily discharge determined as follows: 1913: Mar. 26 to Apr. 15, from well-defined rating curve. 

1914, 1915: Jan. 28 to May 2, from fairly well defined rating curves. Jan. 29 to June 28, from fairly well 
defined rating curves and Dy shifting-control method. 1914-15 from four well-defined rating curves appli- 
cable for short periods and by shifting-control method. 

1916: Water began flowing early in morning Jan. 17; crest of first flood at midnight Jan. 17; crest of second 
flood at 7 p. m Jan. 27; concrete highway bridge failed at 2.20 p. m. Jan. 27 Stream dry for days for which 
discharge is not given except May 3 to 8 and 10 to 14, 1914, for which no record was reported. 



86 SURFACE WATER OE PACIFIC SLOPE^ SOUTHERInT CALIFORj^IA. 

Monthly discharge of San Diego River at Sa7i Diego, Calif ., for 1912-191(1. 



Month. 


Discharge in second- 
feet). 


Run-ofi 
(total in 
acre- 
feet). 


Month. 


Discharge in seeond- 
feet. 


Ru-u-otf 
(total ta 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum , 


Mean. 


■ acre- 

. feet). 


1912-13. 
Marcli 


18 
30 







1.7 

1.54 


105 
92 


1914-15. 

January.. 

February 

Marcli 

April 

May 


2,240 

2,480 

740 

215 

1,160 

74 



100 

74 



136 
672 
209 

66.1 
316 

25.4 


8 380 


April 


37' 300 
12,900 

3, 930 
19,400 

1 510 




The year.... 


30 





.27 


197 


1913-14. 


820 

1,820 

82 

20 




6 




44-6 
186 
25.6 
2.9 


2, 740 

10, 300 

1,570 

173 


June.::::::;:;::: 




The year 

1915-18. 
January.. 




February 

March 


2,480 


1 115 


83,400 




75,000 


3,460 




May 


213,000: 










The period... 


1, 820 





23,6 


14, 800 









BOTTLDEE CHEEK NEAR JULIAN^ CALIF. 

Location. — In Cuyamaca gi'ant,. at outlet of Cuyamaca re&ervoir, 7 miles south of 
Julian, San Diego County, and 12 miles above mouth of Boulder ('reek. 

Drainage area. — 12.0 square miles (measured on topographie maps). 

Elevation. — About 4,650 feet above sea level. 

Records available. — June 19, 1912, to September 30, 1918. 

Gage.: — Vertical staff fastened on right side of weir I30X, 3^ feet above weir. Zero at 
elevation of crest of the 6-foot Cippoletti weir wMch is 100 feet below outlet 
gates of reservoir. Read daily by an employee of the Cuyamaca Water Co. 

Discharge measurements. — Made by wading near weir. On account of velocity 
of approach it has been necessary to rate weir. 

Channel and control. — Cippoletti weir acts as permanent control. 

Extremes op discharob. — 1912-1918: Maximum stage not knov/n; maximum mean 
daily discharge recorded occurred January 28, 1016 (discharge, 1,877 second- 
feet); no water is released from, the reservoir except when needed for Cuyamaca 
Water Co.'s flume. 

Diversions. — None. 

Regulation. — Flow completely regulated ])y operation of outlet gate of reservoir. 
Cuyamaca dam, completed in 1886, was one of the first earth dams built in Cali- 
fornia to store water for irrigation. The dam was originalh' 35 feet high but in 
1894 was enlarged, increasing the capacity of the reser^'^oir to 11,400 acre-feet. 
The present dam is 635 feet long and 41-| feet high, with an inner slope of 2:1 and 
an outer slope of 1|-:1. From the reservoir the water flows 12| miles down the 
natural channel of Boulder Creek and San Diego River to the intake of Cuyamaca 
Water Co.'s flume. 

Accuracy. — Stage-discharge relation permanent except when changes are made in 
weir. Rating curves well defined. Gage read to hundredths daily with addi- 
tional observations when reservoir gates are changed. Daily discharge ascer- 
tained by applying mean daily gage height to rating table. Record excellent 
when discharge does not exceed capacity of weir. 

Cooperation, — Records of daily discharge for 1916, 19-17, and 1918 furnished by 
Cuyamaca Water Co., Ed. Fletcher, manager. 



SAN DIEGO EIVEK BASIN. 



87 



Discharge measurements of Boulder Creek at Cuyamaea reservoir, near Julian, Calif. ^ 

for 1912-1915. 



1912. 

July 25 

25 

26 

26 

1914. 

Aug. 21 

Sept. 10 

Oct. 11 



Made by— 



E. W. Case. 
do 

.-..do 

....do 

F. C. Ebert 

....do 

....do 



Gage 
height. 



Feet. 
0.58 



.40 
.22 



Dis- 
charge. 



5.5 
2-. 2 
3.0' 



1914. 

NOA". 4 



1917. 
June 28 



W. J. Isbell... 
--.-do. 

F.C. Ebert.... 
--..do-. 

!>. A. McChmg. 



(rage 
height. 



Feet. 
.71 



.32 
.43 

.35 



Daily discharge, in second-feet, of Boulder Creek oi Cuyamaea reservoir, near Julian, Calif., 

for 1912-1918. 



Day. 


June. 


July. 


Aug. 


Sept. 




Da 


V. 


June. 


July. 


Aug. 


Sept. 


1912. 
1 




7.5 
7.5 
7.5 
6.6 
5.5 

7.5 
9.5 
5.5 

7.5 
7.5 

8.5 
9.5 
9.5 
9.5 

9.5 


7.5 
12 
12 
12 
12 

12 

12 
12 
12 
12 

12 

.0 
9.5 
9.5 
9.5 


7.5 
7. 5 

5.5: 

5.5 
3.7 

3.7 
3.7 
3.7 
5.5 
3.7 

3.7 
4.6 
5.5 
6.6 

5,5 


16. 
17. 
IS 


1912, 




11 
12 
9.5 
11 

12 

12 
12 
12 
12 
8.0 

12 
12 
12 
.12 
7.5 
7.5 


9.2 
9.5 
9.0 
9.5 

7.8 

5.5 
5.5 
5.5 

12 

12 

.0 
.0 
1.3 

3.7 
3.7 
4.6 


4.6 


2 










4 6 


3 










5.5 


4 




19. 

20. 

21. 

22. 

24. 
25. 

26. 

27. 
28. 
29. 
30. 
31. 






4.6 
5.9 

5.9 
9.5 
9.5 
9.5 

7.8 

7.5 
9.5 
9.5 
9.5 

3.7 


4 6 


5 .,... 








4.6 


6 








4.6 


7 








4.6 


8 ... . 








4 6 


9 








4.6 


10 








4 6 


11 








4.6 


12 ... . 








4 6 


13 








4.6 


14 








3.7 


15 








3 7 






















Day. 


Oct. 


Nov. 


Dec. 


Jan. 


May. 


June. 


July. 


Aug. 


Sept. 


1912-13. 
1 


3.7 

.0 
.0 

.0 
.0 
.0 
.0 

.0 

2.1 
4.6 
6.6 
6.6 
5.5 

5.5 
5.5 
5.5 

5.5 
3.7 

3.7 
3.7 
3.7 

3.7 
3.7 

3.7 
4.1 
4.1 
4.1 
4.1 
2-4 


2.4 
2.4 
2.4 
2.4 
2.4 

2.4 
2.4 
2.4 
2.4 
2.4 

2.4 
2.4 
2.4 
2.4 
2.4 

2.4 
2.4 
2.4 
2.4 
2.4 

2.4 
2.4 
2.4 
2.4 
2.4 

2.4 

2.4 
2.4 
2.4 
2.4 


O.C 
.0 

.8 

is 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
2.1 
2.1 
2.1 


2.1 

2.1 
2.1 
2.1 
2.1 

2.1 
2.1 
2.1 

.8 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 

.0 
.0 


0.0 
.0 
.0 
.0 
.0 

.0 

:S 


.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 

.8 
.8 
.8 
•8 

.8 
1.3 
1.3 
1.3 
1.3 
1.3 


1.3 
1.3 
1.3 
1.3 
1.3 

1.3 
2.1 

2.8 
2.8 
2.8 

2.8 
6.8 
6.8 
6.8 
6.S 

8.5 
8.5 
8.5 
9.5 
10.6 

10.6 
12 

12 
12 

12 
5.5 
5.5 
7.0 

8.5 


8.5 
8.5 
8.5 
8.5 
8.5 

8.5 
8.5 
10.6 
10.6 

10.6 

10.6 
10.6 
10.8 
10.6 
10. 6 

10. 6 
10. 6 
10.6 
10.6 
10.6 

10.6 

sis 

5.5 

5.5 
5.5 

5.5 
6.6 
6.6 
6.6 


6.6 
6.6 
6.6 
6.6 
6.6 

6.6 
6.6 
6.6 
6.6 
6.6 

6.6 
6.6 
6.6 
6.6 
6.6 

6.6 
6.6 
6.6 
7.5 
7.5 

5.9 
5.9 
5.9 
5.9 
5.9 

5.9 
5.9 
5.9 
5.9 
5.9 
5.9 


2.4 


2 


2 4 


3 


2.4 


4 


5.5 


5 


2.4 


6 


2.4 


7 


8 


8 


8.0 


9 


8.0 


10 


3 7 


11 


7.5 


12 . 


7 5 


13..... 


7.5 


14 


7.5 


15 „ . 


7.5 


16.... 


7.5 


17 


6 5 


18 


5.5 


19 


5.5 


20 .... 


5 5 


21 


5.5 


22 


6 5 


23. . . 


5 5 


24 


5 5 


25 


5 5 


26 


5 5 


27 


5 5 


28 




29. 


5 5 
5 5 


30 


31 















88 SURFACE WATER OF PACIFIC SLOPE, SOUTHERl^ CALIFORInTIA. 



Daily discharge, in second-feet, of Boulder CreeTc at Cuvamaca reservoir, near Julian, Calif 
for 19n-1918—Gontmued. 



Day. 


Oct. 


Nov. 


•Tuly. 


Aug. 


Sept. 


Day. 


Oct. 


Nov. 


July. 


Aug. 


Sept. 


1913-14, 
1 


4.2 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
4.2 

4.2 
2.2 
2.2 
2 2 
2.8 

4.2 
4.2 
4.2 
.6 
.6 

.6 
.6 
.6 
1.6 
1.6 

1.6 

.6 
.4 
.4 

.4 

.4 


0.4 

.4 
.4 
.4 
.3 

:::::: 




0.0 
.0 
.0 
.0 
.0 

.0 
.0 
1.0 
6.0 
6.0 

6.0 

7.8 
7.8 
7.8 
7.8 

7.8 
7.8 
7.8 
7.8 
7.8 

7.8 
3.4 
3.4 
3.4 
3.4 

3.4 
3.4 
3.4 
5.2 

5.2 

7.8 


0.0 
.0 

8.3 
8.3 
8.3 

8.3 
8.3 
5.6 
3.6 
3.6 

.5.6 
5.6 
5.6 
5.6 
5.6 

5.6 
5.6 
5.6 
.5.6 
5.6 

5.6 
5.8 
3.6 
3.6 
3.6 

3.6 
3.6 
3.6 
3.6 
5.6 
5.6 


5.6 
5.6 
5.6 
5.6 
5.6 

5.6 
3.6 
3.6 
3.6 
3.6 

2.3 
2.3 
2.3 
2.3 
2.3 

2.3 
2.3 
3.3 
3.3 
3.3 

3.3 
3.3 
3.3 
3.3 
3.3 

3.3 
3.3 
3.3 
3.3 
3.3 


1 

1 
1 
1 

1 
1 

1 

1 
1 
1 

S 


1914-15. 
1 


2.3 
1.4 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

2.5 
3.3 
3.0 
2.3 
3.0 

3.0 
3.0 
3.0 
2.5 
2.0 

1.1 

.7 
.7 
1.7 
2.0 

2.0 
2.6 
3.3 
3.3 
3.3 
3.3 


3.3 
3.3 
6.2 

7.4 
1.2 

1.0 
1.0 
1.0 
.3 




3.1 
3.6 

4.2 
5.6 
7.0 

8.3 
8.3 
8.3 
8.3 
9.4 

11 
11 
7.9 

7.8 
7.8 

6.7 
5.3 
5.2 
5.2 
6.5 

8.3 
8.3 
7.2 
6.8 
5.6 

6.8 
5.8 
6.6 
5.6 
5.6 
6.5 


7 8 




2 






7 8 


3 


3 . . 






7 8 


4 


4 






6 8 


5 


5 






5 6 


6 


6 






5.6 
5 6 


7 


7 






8 


8 






5 6 


9 


9 






5 6 


10 


... 






7 6 


11 


1 








8 5 


12 


2 








8 6 


13 


3 








8 6 


14 


4 








7.2 


15 


5 









5 4 


16 


6 








4 2 


17 


7 








4 2 


18 


8 








4.2 


19 


9 








5 4 


20.. . 









21 

28 
30 
52 
92 
12 

36 
49 
67 
67 
58 
40 


5 4 


21 


1 






7 7 


22 


2 






7 6 


23 


3 






7.6 


24 


4 







7 6 


25 


5 







7.6 


26 ... 


6 






6 & 


27 


7 ... 







6.5 


28 


8 






6.5 


29 


9 






5 6 


30 









5.& 


31 


1 




















Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Aug. 


Sept. 


1 


1915-16. 


5.6 
6.7 
6.7 
6.7 
6.7 

6.7 

7.8 
7.8 
7.8 
7.8 

7.8 
6.7 
6.7 
6.7 
6.7 

7.3 
7.4 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 
6.0 


6.0 
6.0 
6.0 
6.0 
6.0 

2.7 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
4.6 
4.6 
4.6 
1.4 

1.4 
1.4 
1.4 
1.4 
1.4 

1.4 
1.4 
1.4 
1.4 
1.4 


1.4 
1.4 
3.3 

.8 




329 
325 
323 
240 


40 
40 
40 
40 
40 

40 
40 
40 
30 


1,5 
3.0 
5.2 
3.0 
3.0 

3.0 
3.0 
3.0 
1.9 
1.9 

1.1 
1.1 
1.1 
1.1 
1.1 

1.1 
1.1 
1.1 
1.9 
1.9 

1.9 
1.9 
1.9 
1.9 
1.9 

1.9 
1.9 
1.9 
1.9 
1.9 
1.9 


1.9 


2 




3.Q 


3 .... 




3 


4 




3 5 


5 




4. 1 


6 








4 1 


7 








4.1 


8 . 








4.1 










4 1 










4.1 


11 










4 1 


12 










4 1 


13 










4.1 


14 










4.1 


15 ... 










4 1 


16 










4.1 


17 










7.8 


18 




33 
106 
106 

66 






5.5 








5.5 








5.5 


21 






5.5 


22 ,. 






5.5 


23 








17 
30 
30 

30 
27 


5.5 


24 








5.5 


25 




11 

23 
820 
1,880 
815 
550 
345 




5.5 






5.5 


27 




5.5 


28 




5.5 




3 




4.5 






2.5 


31 




























1 





SAN DIEGO RIVER BASIN, 



89 



Daily discharge, in seco\ 



, of Boulder Creek at Cuyamaca reservoir, near Julian, Calif., 
for 1912-1918— Continued, 



Day. 


Oct. 


June. 


July. 


Aug. 


Sept. 


Day. 


Oct. 


June. 


July. 


Aug. 


Sept. 


1916-17. 
1 


2.5 
.9 




6.9 
6.9 
6.9 
6.9 
6.9 

6.9 
7.5 
8.3 
8.3 
9.3 

9.9 
8.6 

8.5 
8.6 
7.2 


9.1 
9.1 
9.1 
9.1 

8.G 

7.8 
7.8 
7.8 
7.8 
7.8 

7.8 
7.8 
7.8 
7.8 
7.8 


8.9 
8.9 
8.9 
8.9 
8.9 

8.9 
8.9 
8.9 
8.9 
8.9 

8.9 
8.9 
8.9 
8.9 
8.9 


1 
1 
1 
1 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
3 
3 


1916-17. 
5 






7.2 
7.2 
7.2 

7.2 
7.7 

9.1 
9.1 
9.1 
9.1 
9.1 


7.8 
7.8 
7.8 
7.8 

7.8 

8.2 
8.9 
8.9 
8.9 
8.9 

8.9 
8.9 
8.9 
8.9 
• 8.9 
8.9 


8.9 


2 


7 






8.9 


3 


8 






8.9 


4 






9 







8.9 


5 













8.9 


6 






1 






8.9 


7 






2 






8.9 


8 






3 






8.9 


9 .... 






4 






' 8.9 


10 






5 






8.9 


11 . 






8 




2.8 


9.1 


8.9 


12 






7 ... 




2.8 9.1 
4.4 1 9.1 
5.0 i 9.1 

6.9 9.1 


8.9 


13 




• 


8 




8.9 


14 






9 




8.9 


15 











8.9 








1 






9.1 






1 






Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


May. 


June. 


July. 


Aug. 


Sept. 


1917-18. 
1 .. 


8.9 
8.9 
8.9 
8.9 
8.9 

8.9 
8.9 
8.9 
8.9 
8.9 

8.9 
8.9 
4.4 
6.9 
3.0 

5.3 
2.6 
4.3 
4.3 
4.3 

4.3 
4.3 
4.3 
4.3 
4.3 

4.3 
4.3 
4.3 
4.3 
4.3 
4.3 


9.4 
4.3 
4.3 
4.3 

4.3 

4.3 




2.7 
2.7 
2.7 
2.7 
2.7 

2.5 
1.8 

1.8 
1.8 
1.8 

1.8 
1.8 
1.0 








7.2 
7.2 
11.4 
11.4 
11.4 

11.4 
11.4 
11.4 
11.4 
11.4 

11.4 
11.4 
8.9 
8.9 
<?.9 

8.9 
8.9 
8.9 
8.9 
8.9 

11.6 
11.6 
11.6 
11.6 
11.6 

11.6 
11.6 
11.6 
11.6 
11.6 
n.fi 


11.6 
11.6 
11.6 
11.6 
11.6 

11.6 
11.6 
11.6 
11.6 
11.6 

11.6 
11.6 
11.6 
11.6 
11.6 

11.6 
11.6 
11.6 
11.6 
11.6 

11.6 
11.6 
11.6 
11.6 
11.6 

11.6 
11.6 
11.6 
11.6 
11.6 
11.fi 


11.6 


2 




7.7 
11.1 
12.6 
24 

22 
19.2 
21 
23 

22 

22 
22 
22 
22 
22 

22 
22 
14.1 






7.5 


3 








7.5 


4 








7.5 


5 








7.5 


6 . .. . 








7 5 


7 








7.5 


8 








4.4 
7.2 
7.2 

7.2 
7.2 
7.2 
7.2 
7.2 

7.2 
7.2 
7.2 
7.2 
7.2 

7.2 
7.2 
7.2 
7.2 
7.2 

7.2 
7.2 
7.2 
7.2 
7.2 


7.5 


9 








7 5 


10 


2.2 

3.6 
3.6 
3.6 
3.6 
3.6 

3.6 
3.6 
3.6 
3.6 
3.6 

3.6 
3.6 
3.6 
3.6 
3.6 

3.6 
3.6 






7.5 


11 






9 2 


12 






11.6 


13 






11 6 


14 






10. 1 


15 








10.1 


16 








8 


17 






4.7 
4.7 

4.7 
3.9 

2.7 
2.0 

.8 
.8 
.8 

.8 
.8 
.8 
.4 


8 


18 


1.6 
1.6 
1.6 

1.6 
1.6 
2,3 
2.3 
.9 

.9 
.9 
.9 
.9 
.9 
,9 




8 


19 




8.0 


20 






8 


21 




2.0 
.6 


8.0 


22 




8 


23 ... . 




8 


24 






8.0 


25 . 






10 7 


26 






10.7 


27 






10 7 


28 






10.7 


29. 








10 7 


30 








10 7 


31 







































Note. — No water released from Cuyamaca reservoir except as shown by tables. 



90 SURFACE WATER OE PACIFIC SLOPE, SOUTHERNS CALIEORJ^IA. 

Monthly discharge of Boulder Creeh at Cuyamaca reservoir, near Julian, Calif., for 1912- 

1918. 



Month. 


Discharge in second- 
feet. 


Rm>off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Rtm-o3 
(total in 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1912. 
Jime 19-30. 


9.5 
12 

12 


3.7 
3.7 


7.70 
&.45 
S.24 
4. 80 


183 

581 
507 
286 


1915-16. 
October 


7 8 
6.G 
3.3 

1, 880 
329 

40 
5.2 
7.- 8 


5.6 
.0 
.0 
.0 
.0 
.0 
1.1 
1.9 


6.57 404 


Julv..-. 

August 


NoA'cmber 

December 

January . . . 


2. 06 123 
.22 14 


SeutemlDer- . 


153 9,410 
42.1 I 2-, 420 
15. 6 ! 9.59 




February 

March 


1912-13. 
October 


6. () 
2.4 
2.1 
2. I 
i.3 

10. r. 


.0 
2.4 
.0 
.0 
.0 
l.'i 
5.5 
5. 9 
2.4 


3.21 
2.40 

87 
.57 
.34 
6.37 

ti. 41 


197 
143. 
53 

35 
21 
379 
536 
394 
331 






Noveiul;er .... 

December 




September 

The year... 
1916-17. 


4. .33 ; 270 




1,880 


.& 




Mav 


18.9 iia, 700' 


June 


2.5 
6.9 
9.9 
9.1 

8.9 


.0 
.0 
6.9 

7.8 
8.9 




July 


.11 

.73 
8.20 
8.36 
S.90 


6.8 


Aiigutfi 

SepteinbeF.- 


June - 

Julv 


43.4 
504 


August 

September 

The year. . . 
1917-18. 

October 

November 

: December 

Januarv 

Fel)riiarv 

■ Mav 




Tfeeyeiu-- . 


12 


.0 


2.89 


2, 090 


514 
630^ 


1933-14. 


.; 2 

8^3 
5.6 


.4 
.0 
.0 
.0 
2.3 


1.R5 
.06 

4.48 
5.09 
3.57 


114 

313 
212 




9.9 


.0 


2.21 


1,600 


November 

Julv 




8.9 
9.4 
2.3 
2.7 

24 

4.7 

1L6 
11.6 
11.6 


2.6 
.0 
.0 
.0 

.0 
.0 
.0 
7.2 
11.6 
7.5 


6.10 
3.14 
.61 




August 

September 


375 
187 
37.5 


The year. . . 


S.3 


.0 


1.27 


918 


. 90 : 55. 3 

11.9 ! 661 
.90 i 55.3 


lObl-lo. 


3.3 

7.4 
12 
11 

X. 6 


.0 
.0 
.0 
3.1 
4.2 


1.78 
.82 
2.13 
6.86 
ti.54 


109 
49 
131 
422 
389 


NoYenit)er 




5. 43 323 


Julv 


10. 6 ! 652 


July 




11.6 I 713 




September 

The year... 




September 




The year... 


12 


.0 


1.52 


1,100 


24 


.0 


4. 96 3, 590 



Note.— No. water relea.sed from Cuyamaca reservoir in months for which dischargs is not shown. The 
totals therefore represent records for full year. 

BOTJLDKR CItEEK AT MOUTH, KEAR LAKESIDE, CALIF, 

Location. — In NW. i sec. 12, T. 14 S., R. 2 E., just above junction with San Diego 
River, about 14 miles northeast of Lakeside, San Diego County. 

Drainage area. — .33.5 square miles (measured on topographic maps). 

Elevation. — A]:)Out 800 feet above sea level. 

Rkcords avail.\_ble. — August 12, 1912, to January 26, 1916. 

Gage. — Vertical staff, installed March 1, 1914, on right wing wall of weir box, 300 
feet above mouth of creek, at same datum as gage destroyed by flood in January, 
1914. When the station was e.stablished a weir without end contractions, was 
installed. The g&ge, which was fastened to left side of box. was at same elevation 
as crest of weir. Weir board was removed Novem.ber 9. 1&12, and gage readings 
were obtained Ijy measurLcg from a reference point until January 22, 1913., when 
a vertical stall' was installed on left bank in pool above weir box; datum, 2.0 feet 
below original gage. 

Discharge measurements. — Made from foot plank over f],ume or by wading. 

Channel and control, — ^Sand, gravel, and boulders; fairly permanent. The weir 
box acts as a control. Both banks are fairly high and not likely to l>e overflowed. 

Extremes op discharge. — 1912-1916: Maximum stage recorded, 7.00 feet January 
18, l!il6 (discharge, 345 second-feet); no flow July 2 to 8. 1914. 

Diversions. — None. 

Regui-ation. — Water is stored at Cuyamaca reservoir and released during low- water 
period. See Boulder Creek near Julian. 

Accuracy. — Stage-discharge relation fairly permanent. Rating curves well defined 
below 80 second-feet. Gage read to hundredths twice daily. Daily dis- 
charge ascertained by applying mean daily gage height to rating table. Records 
good for medium and low stages; high- water records fair. 



SAK DIEGO EIVEH BASIN. ^ 91 

J>i:sckarg-e measnremenrs of Boulder Crech at mouth, near Laliesi>^:e . f'aMf.,for 191S-J9t5. 



Date.. 


im2. 


Aus. 


16 


Oct. 


2 


ms. ! 


Jan. 


12 




16 




22 


h>l>, 


1H 




2f> 


Mn,r. 


i.^ 


M:ay 


13 


1914. 1 


Jan. 


20 




28 


Apr. 


20 


Mav 


12 




1H 


Get. 


17 



Made by— 



F. C. Ebert. 
do 



W. 



-do. 



. Post. 



F. C. Ebert. 
....do 

E. W.Case.. 
F.C. Ebert. 
do 



F.C. Ebert 

do 

.-..do-.- 

W. D. MeFo,dden.. 

F.C. Ebert 

do 



Gage Dis- 
h eight, charge. 



Fret. 
0i53 



1.40 
.93 



1.17 
2. 50 
1.03 
1.20 
1.17 
1. 01 



Sec-it. 
7.3 
3.4 



IZ 
1.^ 



2.5 
5.. 4 



1915. 
Feb. ;; 



Gaga Dis- 
h-eight, eharg^. 



F.C. Ebert.. 

d0- 

Day and Muadiiv 



McCliin^ and Harritt. . 
do 



Id I 

23 

30 

July 10 

Sept. 24 

Doc. 8 



D. A, McChmg.. 
F.C. Ebert..:.. 

do 

....do 



Feet. 
2. S3 



3.60 
2. 50 
2.05 
>. S2 

i.ti2 

1. 1^ 

i.38 
1. 25 
1. 1.5 
1.32 

LOS 



Scc.-fl. 



».r> 

27 



10 
S.9 
G. 1 
4.6 
6.1 
2.2 



J)mh/ discharge, in second-feet, of Boulder Creek at m.&ath, itr,ir Laheslde, f'alif., for 191:2- 

1916. 



Day. 


Aug. 


Sept. 


Day. 


Aug. 


Sept. 


Day. 


•Aug. 


Sept. 


1 


1912. 




4.1 

5^6 
5.5 
3.6 

4. 
3.8 
4.3 

4.3 

4.7 


11.. 
12. 
13 


1912. 




4.1 
4.7 
4.3 
5. 1 
4.7 

5.1 
4.1 
4.1 
I.l 
3.4 


21.. 


1912. 


4.3 
4.7 
9.1 
9. 3 

i;3 

4.0 
1.3 
3.8 


4.1 


2 






2.S 
7.3 
7.3 
7.1 

7.1 

8.1 
8.1 
8.4 


22 .. 


3.8 


3^ 






23 


3 9^ 


4 . ... 




14.. 
15 




21 


4.0 


5. 






2:5.. 

26 . . 
'>7 




4 3 


6 , . 




IC. 
17. 
18. 
39 






4. ft 


7 








3 8 


8 . , 






28 


3.S 


9- 






29 


3 * 


10 




20. 




30. 
31. 




3.1 













Day. 


Oct. 


Nov. 


Dec. 


Jau. 


Fob. 


M;ar. 


Apr. 


May. 


.Tune. 


July. 


A us. 


Sept. 


1912-13. 
1 


3.1 

3.1 
3.4 
8.6 
7.5 
7.9 
3.4 
2.2 
1.8 
1.7 
1.5 
1.9 
4.1 
6.4 
4.7 

.5.1 

5. 1 
.5.2 
6.4 
5.2 

5.1 
5.2 
5.1 
4.7 
5.1 
5.2 
5.1 
5.2 
5.2 
4.7 
4.7 


4.1 
3.1 
3.6 
4.3 
4.0 
4.0 
4.0 
3.3 
2.8 
3.2 
4.0 
■ 4.2 
4.0 
3.0 
3.2 

2.9 
2.8 
2.7 
2.8 
2.8 

2.8 
2.6 
2.3 
2.7 
2.7 
2.8 
2.6 
2.6 
2.6 
2.8 


5.3 
3.1 
2.6 
2.6 
3.0 
2. -6 
2.6 
2.5 
2.5 
2.4 

2.5 
2.5 
2. 5 

2.4 
2.0 
2.4 
2.4 
2.6 
2.4 

2.4 
2.5 
2.2 
2.4 
2.5 
2.4 
2.3 
2.1 
2.2 
2.1 
2.0 


2.0 
2.9 
3.2 

2.9 
2.9 
2.8 
2.8 
2.9 
3.2 
2.8 
2.6 
2.3 
2.3 

12 

11 
9.5 
.5.6 
4.4 
4.0 
3.0 
3.0 
2.5 
2.5 

2.5 
2.6 
2.7 
2.6 
2.6 
2.6 


2.6 
2.6 
2.5 
2.5 
2.5 
2.9 
2.9 
3.8 
4.0 
3.2 

2.8 
2.9 
2.9 
2.9 
2.0 

2.3 
2.3 
2.2 
2.2 
2.4 

2.9 
26 

\6 
4.0 
26 
20 
18 


12.5 
13. 5 
8.6 
11 
14 

11 
16 
14 
16 
12 
10 
14 
14 
14 
12. 5 

11 
8.6 
8.0 
8.0 

S. 6 

11 
9. 5 

IS 
17 
14 

15 
13 
11 
11 
11 
11 


9.5 
11 

n 

10.5 

8.6 

8.0 
8.0 
7.4 
6.2 
6. 5 

.5.0 

5!o 

6.5 

.5.3 
.5.0 
4.6 
5.0 

4.6 
4.0 
4.2 
4.0 
3.0 
3.0 
3.4 
3.0 
3.0 
3.0 


3.0 
3.0 
3.0 

2.9 
2.9 
2.9 
2.9 
2. 9 
2.9 

2! 4 
1.8 
2.0 
1,7 
1.6 
1.6 
1.6 
1.6 
1. S 
1. 7 

2.5 
2.0 
2.0 
2.0 
2.3 
2.5 
2.5 
2.8 


2.8 
2.7 

2. 7 

i'.2 

3.2 
3.4 

4.8 

4.8 

5. G 

6.2 

6. 5 
0. 5 
7^1 

6. 5 

e! 5 
9. -^ 

8.0 

s.o 

S. 
8.9 

6!2 
5.0 


-' 8 

-1. ^ 

6!2 

6.5 
5.6 

6. 2 

S.O 
7.4 
7.4 

7. 1 

8.0 
8.0 

S. 

.'. l1 

4.4 
4.0 

4. 

".0 
3.0 

5. 
.">. 
3.0 
3,0 


3.0 
3.0 

3. 

4. 4 

;-;. 
3.4 

3.4 
3.2 

3. 2 
3.2 
3.2 
3.2 

4. (\ 

3, •> 
3 S 
3.6 
3.6 

4.0 

4. 
3.6 
4.4 
6.5 
4.0 


2.5 


2 


-'.2 


3.. 

4 „ 


2.1 
2I0 


6 


2.0 




4.2 


S 


4.4 


9 


4.4 


10.. 

11 


2.5 
1.8 


12 


4.2 


13 


4.6 


14 

15. 


4.6 
4,6 


16 


3.4 


17.. 

18 


3.0 
2.9 


19 


3 


20. 


3 


21 


3.0 


22.. 

23. 


3.0 

3 2 


24 


4.0 


25 


3.8 


26. 


3 5 


27 


3.3 


28 


3 


29 


3.0 


30 


3.0 


31 





92 SUKFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Boulder Creek at mouth, near Lakeside, Calif ., for 19 12- 
i9-? 6— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1913-14. 
1 


3.2 
3.6 
2.4 
2.6 

2.1 

2.0 
1.8 
1.6 
2.0 
3.4 

2.6 
2.3 
2.2 
2.3 
3.2 

3.4 
3.2 
3.0 
2.9 
2.0 

. 1.7 
1.5 
1.6 

1.7 

1.8 

1.8 
1.4 
1.3 
1.5 
1.4 
1.4 

3.0 
3.2 
4.2 
3.5 
1.8 

1.0 
1.5 
1.5 
1.5 
1.4 

1.5 
2.0 
2.2 
2.2 
2.4 

2.5 
2.5 
1.5 
1.5 

1.8 

1.6 
2.0 
1.5 
1.2 
1.2 

1.1 
1.0 
1.5 
2.1 
2.3 
3.4 


1.4 
1.5 
1.6 

1.8 
1.6 

1.5 
1.5 
1.4 
1.3 
1.1 

1.1 
1.1 
11.0 
2.3 

1.8 

1.8 
1.7 
1.6 
1.9 

3.0 

2.8 
2.2 

1.8 
1.8 

1.8 

1.8 
1.8 
1.8 
1.8 
1.8 

3.3 
3.3 
.3.3 
3.4 

7.8 

3.3 

2.4 
2.2 
2.0 
11 

2.1 
2.1 

2.0 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.4 
1.4 
1.4 
1.5 
1.5 

1.5 
1.6 
1.6 
1.6 
1.7 


2.0 
1.9 

1.8 
1.8 
1.8 

1.8 
' 1.8 
1.8 
1.8 
1.8 

1.8 
1.8 
1.8 
1.8 
1.8 

1.7 
1 8 
1.8 
1.8 
1.8 

1.9 
2.0 
5.0 

3.4 
2.7 

3.2 
2.0 
2.5 
2.5 
2.2 
2.5 

1.7 
1.7 
2.0 
1.5 
1.5 

1.6 
1.6 
1.6 
1.7 
1.7 

1.7 
3.1 
3.0 
2.7 
2.9 

2.2 
2.3 

8.0 
4.2 
4.1 

3.8 
3.2 
3.1 
3.5 
3.1 

2.9 
2.8 
2.5 
2.8 
2.7 
2.7 


2.7 
2.5 
2.3 
2.2 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

1.8 
1.8 
1.8 
1.8 
1.8 

2.5 
.5.0 
4.0 
11.0 
■ .5.0 

3.4 
3.0 

2.8 

11 

5.6 
83 
29 




12 
10.5 

8.6 
7.4 
7.1 

6.5 
6.5 
5.9 
5.3 

4.8 

4.8 
4.4 
4.2 
4.2 
4.0 

4.0 
3.8 
3.4 
3.6 
3.2 

3.4 
3.0 
3.0 
3.4 
3.2 

3.4 
3.8 
3.8 
3.4 
4.0 
3.6 

46 
46 

48 

. 42 

49 

38 
36 
34 
30 
30 

34 
28 
25 
24 
21 

20 
19 
18 
14 
16 

15 
15 
13 
13 
12 

12 
12 
12 
16 
13 
12 


3.6 
3.4 
3.4 
3.4 
3.4 

3.6 
3.4 
3.4 
3.2 
3.2 

3.4 
3.4 
3.2 
2 9 
2.9 

2.9 
2.8 
2.7 
2.7 
2.6 

2.5 
4.6 
18 
9.5 
4.6 

4.2 
4.2 
3.8 
4.8 
19.5 

11 

10 

10 
9.0 
9.4 

10 
9.8 
7.4 
9.0 
8.4 

8.0 
8.0 
7.8 
8.6 
11 

9.4 
8.4 
8.2 
7.8 
7.4 

13 

40 
40 
56 
34 

28 
25 
24 
28 
76 


14.5 
17 

10.5 
10.5 
7.4 

0.9 
5.9 
4.6 
4.0 
4.0 

4.0 
3.8 

4.4 
4.4 
4.4 

4.2 
4.2 

3; 8 

3.8 
3.8 

3.6 
3.2 
3.2 
3.2 
3.2 

3.2 
3 2 
3.0 
3.0 

2.8 
2.8 

61 

76 
71 
81 
190 

152 
134 
116 

104 
92 

76 

68 

. 61 

54 
46 

42 
40 
46 
44 
40 

36 
32 
30 

28 
26 

26 
24 
23 
22 
22 
21 


2.6 
2.6 
2.6 
2.6 
2.6 

2.4 
2.4 
3.6 
3.6 
3.0 

2.4 
2.4 
2.0 
1.9 
1.9 

1.8 

1.8 
1.8 
1.8 
1.8 

1.6 
1.6 
1.6 
1.5 
1.5 

1.4 
1.3 
1.3 
1.2 
1.1 

21 
19 
20 
19 
18 

16 
15 
15 
13 
12 

12 
12 
12 
11 

9.8 

9.6 
9.0 
8.6 
8.6 
8.2 

8.2 
8.0 
7.8 
7.4 
7.2 

7.2 
7.0 
6.8 
6.0 
6.2 


1.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
1.0 
2.0 

2.0 

2.8 
8.0 
4.2 
3.0 

6.5 
.5.6 
6.2 
5.9 
5.9 

.5.6 
2.8 
2.3 
2.3 
2.3 

2.3 
2.2 
2.2 
2.3 

2.8 
4.6 

6.0 
.5.6 
5.4 
5.4 
.5.0 

4.7 
4.6 
4.4 
4.4 
4.4 

4.1 
4.1 
3.8 

3.8 
3.8 

3.5 
3.4 
3.2 
3.1 
3.1 

3.3 
4.4 

5.4 
5.8 
17 

6.0 
5.0 
7.4 
7.6 
8.0 
6.8 


8.0 
1.8 
1.8 
4.6 
5.6 

5.6 
5.6 
4.2 
2.9 
2.5 

2.4 
2.3 
2.9 
2.9 
2.9 

3.0 
2.9 
2.3 
2.9 
2.9 

2.9 
3.0 
2.3 

2.5 

2.5 

1.6 
1.0 
1.0 
1.1 
1.9 
2.0 

5.2 
4.8 
5.0 
5.8 
6.2 

7.8 
7.8 
8.0 
7.8 
7.6 

9.4 
9.4 
9.0 
7.6 
7.6 

7.4 
7.0 
5.4 
5.4 

4.7 

5.8 
7.0 
7.0 
7.2 
5.8 

5.8 
4.8 
6.2 
5.4 
.5.0 
6.2 


2.2 
2.3 
2.2 
2,1 
2.1 

2 2 


2.. ... . 


3 


4 


5 


6 


7 


1.9 
2.7 
2.3 
2.3 

1 9 


8 


9 


10 


11 


12 


1.4 


13 


1.6 
1.6 
1 9 


14 


1,5 


16 


1 6 


17 


1 6 


18 


1 8 


19 

20 • 


1.9 

2 


21. . 


2 


22 


2.1 


23 


2.0 


24 


2 


25 


2.0 


26 


2 


27 


2.3 


28 


2 2 


29 


2.1 


30 






2.1 


31 








1914-15. 
1 


2.7 
2.3 
2.3 
2.3 
2.5 

2.5 
2.5 
2.6 
2.6 
3.0 

2.6 
2.6 
2.5 
2.5 
2.6 

2.6 
2.5 
2.4 
2.3 
2.3 

2.2 
6.8 
6.4 
4.2 
4.4 

5.0 
3.6 
4.1 

68 
116 

44 


40 
92 
86 
38 
46 

19 
14 
12 
10 
76 

183 
110 
22 
42 
32 

30 
34 
26 
22 

34 

42 
32 

28 
26 
42 

32 
26 
23 


7.8 


2 


8.4 


3 


9 4 


4.. 


9 6 


5 


7.4 


6 


7.4 




7.4 


8. 


7.4 


9 


7 2 


10 


7.8 


11 


8.2 


12. 


8.2 


13 


8.2 


14 


8.2 


15 


7.8 


16 


7.0 


17 . . 


4.7 


18 


4.7 


19 


5.0 


20.. 


5.0 


21 


5.8 


22 


7.0 


23 


6.6 


24 


7.0 


25 


7.4 


26 


7.4 


27 


6.6 


28 


6.6 


29 


6.6 


30 


5.4 


31 









SAN DIEGO RIVER BASIIT. 



93 



Daily discharge, in second-feet, of Boulder Creeh at mouth, near Laheside, Calif ., for 19 12- 
1916— Continued. 



. Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Day. 


Oct. 


Nov. 


Dec. 


Jan. 


1915-16. 
1 


4.4 
4.8 
5.0 
5.0 
4.8 

5.0 
5.5 
6.0 
6.0 
6.5 

7.0 
6.5 
5.5 
5.0 
5.5 


4.8 
4.8 
5.0 
5.0 
5.0 

6.0 
5.5 
2.3 
2.3 
3.6 

2.1 
2.4 
1.9 
1.5 
1.5 


2.5 
2.5 
2.8 
7.0 
9.0 

3.8 
3.2 
2.5 
2.1 
2.*1 

2.1 
2.0 
2.0 
3.7 
9.0 


3.1 
3.2 

4.8 
3.8 
4.4 

6.0 
5.5 
4.2 
4.4 
7.5 

22 

12' 
9.0 
7.5 

36 


1915-16. 
16 


5.5 
6.5 
4.8 
4.6 
4.4 


1.5 
1.4 
4.0 

4.2 
4.4 
3.0 
2.5 
2.5 
2.5 
2.8 
2.6 
2.6 
2.5 
2.5 
2.5 


5.0 
3.7 
3.2 
2.8 
2.5 

2.5 
2.3 
2.2 
2.1 
2.1 
2.2 
2.2 
2.1 
2.1 
3.4 
3.7 


75 


2 . . 


17 


25 


3 


18 


301 


4 


19 


232 


5 


20 


204 




21 


218 


6 


22 


99 
46 
64 
89 


7 




8 




9 




10 


26 .... 




194 


11 


27 




12 


28 




13 


29 




14 


30 




15... 


31 











Note. — Daily discharge determined as follows: Aug. 12 to Nov. 8, 1912, computed from weir formula 
Q-3.33 L Hf. 
Nov. 9, 1912, to Sept. 30, 1914, from fairly well-defined rating curve. 
Oct. 1, 1914, to Sept. 30, 1915. from rating curve fairly well defined I 
No gage-height record Jan. 29 to Feb. 28, 1914. 
No gage-height record Nov. 22-30, Dec. 5-9, 1914, and Mar. 16, 1915; discharge estimated. 



I between 1 and 80 second-feet. 



Monthly discharge of Boulder Creek at mouth, near Lakeside, Calif., for 1912-1916. 



1912. 

August 12-31.. 
September 



1912-13. 

October , 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September..., 



The year.. 



1913-14, 

October 

November — 

December 

January 1-28 

February 

March 

April 

May 



Discharge in second-feet 



Max.- Mini- 
mum, mum. 



4.3 
5.3 

12 

26 

18 

11 
3.0 
9.5 
8.0 
6.5 



3.( 
11 

5 



12 
19.5 



0.83 
3.00 



1.5 
2.3 
2.0 
2.0 
2.2 
8.0 
3.0 
1.6 
2.5 
2.5 
3.0 
1.8 



.3.0 
2.5 

2.8 



5.53 
4.20 



4.63 
3.18 
2.56 
3.70 
6.64 
12.2 
5.77 
2. .34 
5.14 
.5.40 
3.70 
3.23 



4. 86 



2.22 
2.05 
2.13 

G.84 



4.91 
4.64 
5.15 



Run-off 
(total 

in acre- 
feet). 



219 
250 



369 
750 
343 
144 
306 
332 



3,520 



302 
276 
317 



1913-14. 

June 

July 

August 

September 



1914-15. 

October 

November. . . 
December . . . 

January 

February 

March 

April 

May 

June 

July.... 

August 

September. . . 



The year . 

1915-16. 

October 

November 

December 

January 1-26. . 



The period . 



Discharge in second- feet. 



Maxi- Mini- 
mum, mum. 



3.6 
8.0 



4.2 

11 
8.0 
116 
183 

48 

76 
190 

21 

17 



7.0 
6.0 
9.0 
301 



1.1 
.0 
1.0 



1.0 
1.4 
1.5 
2.2 

10 

12 
7.4 

21 
6.0 
3.1 
4.7 
4.7 



1.0 



4.4 
1.4 
2.0 
3.1 



2.06 

. 2.77 

2.96 

2.01 



1.99 
2.46 
2.71 
10.2 
43.5 
24.3 
18.1 
60.8 
11.4 
5.24 
6.62 
7.11 



16.0 



5.05 
3.17 
3.24 
64.2 



Run -off 
(total 

in acre- 
feet). 



123 
170 



122 

146 

167 

627 

2,420 

1,490 

1,080 

3,740 

678 

322 

407 

423 



11,61 



311 

189 

199 

3,310 



4,010 



CUYAMACA WATEK OO.'S FLITME i AT DIVEHTING DAM, NEAB LAKESIDE, CALIF. 

Location. — In SE. J sec. 11, T. 14 S., R. 2 E., just below intake, at diverting dam 

about 13 miles northeast of Lakeside, San Diego County. 
Records available. — ^June 1, 1912, to September 30, 1918. 
Gage. — Vertical staff in stilling box on outside of flume, about 1,000 feet below intake; 

installed April 8, 1916. Staff and water-stage recorder previously used were 500 

feet below intake and just above sand box. Datum has always been elevation of 

floor of flume. (See PI. IX, 5, p. 60.) 

1 Previously called San Diego flume. 



94 SURFACE WATER OF PACIFIC SLOPE^ SOUTHER]^- CALIFORNIA. 



Discharge measurements. — Made from foot plank across flume at gage. 

Channel and control. — The flume was limed with tar paper in 1914 to reduce 

leakage. 
Extremes op discharge. — 1912-1&18: Maximum mean daily discharge 61 second- 
feet March 24, 1913. No flow for certain periods nearly every year. 
Accuracy. — Stage-discharge relation not permanent throughout the period covered 
by record on account of changes in flume. Several well-defined rating curves 
have been used. When water-stage register was not in operation staff gage was 
read to hundredths three times daily. Mean daily gage height determined 
from gage height graph by inspection. Daily discharge ascertained by applying 
mean daily gage heights to rating tables. Records good. 
Cuyamaca Water Co. 's flume which diverts water from San Diego River and receives 
water from the South Fork of San Diego River, is more than 30 miles long, 6 feet wide 
and 24 inches deep. It discharges into La Mesa reservoir, about 8 miles northeast of 
San Diego. (See also p. 99 and PI. IX.) This system supplied the city of San Diego 
with water until 1906, when the Southern California Mountain ¥/ater Co. extended its 
system to the city. The flume was again used to furnish the city of San Diego aft^ 
the floods of 191 (J, and it now supplies water for irrigation and domestic service. The 
Capitan Grande Indian Reser^'-ation has a water right of 0.8 second-foot from this 
flume. At the sand box, just below the gage, water is occasionally wasted into San 
Diego River. 

Discharge measurements of Cuyamaca Water Co.\sflu7ne at diverting da^n, near Laheside^ 
Calif. Jor 1912-1918. 



1912. 

May 1 

24 

24 

24 

24 

24 

24 

July 15 

15 

15 

15 

Aug. 16 

Oct. 2 

Nov. 9 

I>ec. 16 

1013. 
Jan. 13 

22 

Feb. 16 
Mar. 15 
May 13 

1&14. 

Jan. 20 
20 
20 
20 

Max. 10 
11 

Apr. 7 
20 

May 13 

Oet. 16 
16 

Oct. 17 

Dec. 23 

1915. 

Jan. 7 
13 
20 
27 
28 

Feb. 6 
14 
17 
18 

o 3Day. 



Made by- 



F. C. Ebert. 
do 



..do. 
-.do., 
..do. 
.At.. 
..do. 



W. &. Post... 

Taylor and Hanitt. . 



W. S. Post.. 
F. C. Eberi- 
E. W. Case... 
F.C. Ehert. 

.-..do 

do 



Cuyamaca Water Co 

do 

....do 

-...do 

W. S. Post 

C. E. Hickok.„..---. 

do - 

F.C. Ebert 

....do 

do. 

do 

do 

D. A. McClung 

D. A. MeClung 

do 

do 

do.. 

do 

Lee and Ebert 

W. &. Post 

R.W.Day.. 

do 



Gage 
height. 



Feet. 
1.71 
.50 
.68 
.96 
1.19 
1.67 
1.92 



.82 
.58 
1.30 
.56 

.43 
.27 
.70 
1.15 
1.28 
1.28 
.90 
.57 
.95 
.32 
.12 
0.36 
.56 



.43 
.43 
1.18 

.87 



Dis- 
charge. 



Sec.-Jt. 



lb. 5 

22 

40 

49 
8.4 
4.4 
2.2 

14.5 
7.0 
3.0 
3.3 
3.3 

9.4 
8.6 
9,7 
4.4 
23 
5.1 

6.0 
2.2 
11.7 

25 
25 
24 
13.6 

6.0 
12.2 

1.2 
(a) 

1.5 



2.5 
2.3 
2.1 
17.5 
10.5 
12.0 
34 



1915. 

Feb. 24 

25 

Mar. 3 

4 

10 



Mar. 31 
Apr. 7 



21 

22 
29 

May 12 
19 
26 

June 2 



July 10 
Sept. 24 
Dec. 8 

191G. 

A-pr. 14 

May 24 

Dec. Vi 

13 

22 

1917. 
Nov. 7 

7 
7 



1918. 
Feb. 8 
Mar. 7 



Made by — 



R. W. Day . 
do 

....do 

do 

....do 



do . 

do. 

do. 

....do 

do. 

F.C. Ebert 

R. W. Day 

do 

do... 

do.... 

do 

do 

Day and McClung;- 

McClnngaDd Harritt. 



..do. 
..do. 



..do. 
-do. 



. .ao. 



A. MeChmi,'.. 
F.C. Ebert.. ^-- 

....do 

....do 



F. C. Ebert 

D. A. McClnne;. 
F.C. Eber^ -.'--. 
do 



.do. 



D. A. MeClung.. 
do 



.do. 
.do. 
.do. 
..do. 



A. MeClnng.. 
e. Ebert 



Gage Dis- 
height. charge. 



1.67 
1.68 
1.59 
1.60 
1.60 
1.60 
1.63 
1.62 
1. 63 
1. CO 
1. 55 
1.10 
1.10 



1.68 
1.68 
1.70 
1. 59 
1.48 
1.16 



1.23 
1.17 



L02 
.40 



1.33 
.92 



Sec.-ft. 
32 
32 
31 
32 



25 
24 
25 
26 
26 
26 
25 
15.6 
15.9 
23 
11 
4.1 
32 



29 

25 

21 

13.6 

10.8 
6.2 
4.8 



26 
18.5 
10.5 
2.3 
5.5 



4.3 
10.5 

7.0 
13.4 

2.6 

9.3 

22 
12.2 



SAjS" DIEGO KIYEK BASII^. 



95 



Daily discharge, in second-feet, of Caijwnnca W&ter Co.'s flume at diverting dam, near 
Lakend^, 'CaUf..for i912~1918.. 



Day. 



11.6 
10.7 
9.1 



7.8 

7!.2 
6.9 



6.9 
6.9 
6.9 



10.0 
6.9 

8.0 

7.4 
8.9 
9.1 
9.3 



6.9 
7.2 
10. 2 
10.0 
10.4 



9.1 

7.8 



2.1 
6.3 
7.2 



Sept. 



3.6 

4.1 

4.8 



2.6 
3.2 
4. 

2.9 
3.2 



16 


-■ 6.9 


17 

18 


7.6 

1 5. 9 


19 


. ... 1 4.4 


20 


i 7 


21 


! 7.6 


22 


9 


23 


11 2 


24 


' 11.9 


25 


12 6 


26 . 


' 10.7 


27 


1 9. S 


28 . . 


11. 2 


29 


11 2 


30 


1 12_« 


31 :. 



Aug. 



Sept. 



9.8 
9.3 



10.7 
10.7 
10.2 
8.9 
10.2 



8.9 
10.7 
10; 2 



.6 
5.1 
8.0 



.2 
1.7 
3.1 

2.8 



3.3 

2.9 

2.8 

2.8 
2.6 
3.1 

2.7 



2.6 
2.9 
2.7 
2.8 
2.4 



3.0 
3.0 
2.6 
10 



6.9 
4.8 
3.7 
2.0 

2.0 
3.2 
3.1 
4.2 
3.1 



3.1 
3.0 

3.0 
2.7 
3.2 
3.5 
3.( 

3.2 
3.6 



3.3 
3.8 

4.0 I 
3.5 ! 
4.5 ; 

4.1 i 
3.8 I 
3.8 
4.0 I 
3.8 

3.8 
3. 5 I 
3.5 I 

3.5 I 

3.6 ' 

3.7 
3.8 1 
3.0 
3.0 i 
3.5 

3.7 i 
4.0 ! 
4.0 i 
3.3 

3.6 I 



)ec. 


Jan. 


2.3 


2,5 


2.4 


1.4 


4.0 


2.6 


4.0 


2.8 


3.5 


2.9 


3.1 


1.5 


3.5 


1.1 


3.3 


1.4 


3.2 


. 5 


3.1 


2.7 


3.2 


5.6 


3.3 


8.0 


3.3 


7.2 


3.3 


5.5 


3.5 


4.4 


.3.6 


6.4 


3.6 


8.8 


3.5 


8.8 


3.5 


8.8 


3.3 


8.5 


3.3 


8.1 


3.1 


9.0 


3.1 


8.8 


.9 


7.9 


2.0 


6.7 


.3.2 


5.0 


3.0 


4.2 


2.7 


3.8 


3.0 


3..8 


3.3 


4.0 


2.7 


3.8 



4.3: 
4.0- 
4. 0: 

4.0 
4.0 

4.0 

4.0 



5.1 

4; 8^ ! 



4.2 

4.2 



22 
40 



32 


14 


37 


51 


37 


50 


37 


50 


37 


37 


37 


29 



24 
22 



5.5 
5.8 



lay.. 


June. 


6.1 


6. 0: i 


5. h; 


5.3 


3. 2 


4.7 


3.2 


4.8 


3.2 


4.4 


.3.2 


4.4 


4. 0- 


4.2 


4.0= 


4.2: 


5.2 


4.4 


5.4 


4.2 


5.2 


4.2 


5.2 


5.8 


4.9 


5.9 


4. 9- 


.5.9 


4. 0^ 


6.1 


:?.,s 


i 


o' ■• 


-1. '^ 


•_'. 7 


4.5 


2. 7 


5.1 


2.7 


6.7 


2.9 


(). 7 


3.0 




3. 


8.0 


3.7 


8.0 


4.4 


s. 


4.'.i 


8 2 


4.1 


8.9 


4.0 


8.0 


4.8 


7.1 


4.9 





7.4 
8.0 



Aug. 



4.4 
4.1 
3.8 
3.6 
3.5 

3.3 I 
3.3 



.^ept. 



2.9 
2.8: 
2.7 
1.7 



5.3 

4.8 ' 
4.5 



3.5 
3.3 
3.3 
3.3 

3.3 



3.7 
4.0 

4.0 
3.8 
3.6 
3.5 
3.5 

3.6 
3.6 
:3. ti 



2.8 
3.7 
4.0 



3.7 
3.8 
3.3 

2.9 
3.0 
3.0 
3.3 
3.2 

3.2 
3.0: 
3.3 
3.0 



3.0 
3,2 
2,9 



96 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Daily discharge^ in second-feet, of Cuyamaca Water Co.'s flume at diverting dam, near 
Lakeside, Calif., for 1912-1918— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1913-14. 
1 


3.5 
2.5 
2.1 
2.3 

2.2 

2.4 
2.5 
2.3 
1.4 

2.8 

2.7 
2.4 
2.0 
2.2 

2.7 

2.3 

2.4 
2.4 
2.4 
2.2 

2.6 
1.6 
1.3 
1.2 
.5 

.2 
.0 
.0 
.6 
.5 
.0 




2.0 
1.6 
2.3 
3.8 
4.9 

3.3 
3.3 
3.3 
3.3 
3.9 

3.2 
3.3 
1.9 
2.5 
2.3 

1.3 


0.0 
.0 
.0 
.0 
.0 

.0 
.0 
.6 
.6 
.0 

.0 
.0 
.0 
.6 
.0 

.0 
.9 
.9 
.0 
.6 

.6 
2.4 
6.2 
3.8 

.0 

1.6 
3.9 
3.0 
3.0 
3.0 
2.0 


3.0 

2.8 
2.3 
2.4 
2.4 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.7 

.0 
1.2 
.0 
.0 
.0 

.0 
.0 
8.3 

18 

19 

19 

3.0 
2.9 
2.6 
2.5 
2.4 

2.4 
2.4 
2.4 
1.8 
1.9 

2.5 
2.6 
2.4 
2.4 
2.4 

2.4 
2.4 
2.5 
1.9 
2.1 

2.4 
6.2 

15.5 

18 

12.5 

12.5 

15 
9.4 
8.5 

10 

14.5 


19 
19 
19 
19 
15 

16 
16 
8.7 
11 
11 

11 
11 
13 
12 
11 

9.4 
7.8 
11 
6.6 
9.8 

3.5 
19 

24 
28 
22 

29 
28 
28 

25 

17.5 
1.5 
2.0 

12.5 

10 
23 
25 
25 
16 

.6 
.1 
6.8 
12.5 
2.0 

8.1 
8.1 
7.8 

19 

16 

17.5 

22 

27 

31 

30 

32 
32 
32 


28 
28 
28 
28 
28 

28 
26 
25 
24 

25 

24 
23 
23 
19 
18 

20 
18 
16 
16 
16 

15 
15 
14 
15 
14 

14 
17 
17 
22 
24 
24 

30 
28 
32 
32 
32 

32 
32 
32 
27 
25 

23 
25 
25 
26 
26 

26 
26 
26 
25 
26 

26 
26 
26 
26 
26 

26 
26 
26 
26 
26 
26 


22 
19 
16 
15 
14 

15 
17 
17 
14 
14 

14 
14 
14 
13 
12 

11 

11 

11 
6.0 
6.4 

7.2 
12 
21 
27 
26 

19 
16 
15 
16 
15 

26 
25 
24 
24 
24 

25 
25 
24 
21 
19 

17 

17 

18 

16.5 

15.5 

15.5 

15.5 

15 

17.5 

13.5 

16 

10.5 

10 

10.5 

10.5 

17.5 
6.4 
3.5 
2.6 
5.7 


13 
14 
20 

25 
24 

13 
14 
11 
12 
16 

14 
14 
12 
11 
11 

12 

11 

13 
9.1 
8.3 

7.4 
7.8 
7.6 
7.8 
7.8 

8.3 
7.4 
7.6 
7.0 
6.6 
5.7 

3.3 
3.8 

17 

15.5 
3.3 

15.5 

27 

30 

30 

30 

30 
31 
31 
31 
31 

31 
31 
31 
31 
31 

31 
31 
29 
29 
29 

29 
29 
29 
29 
29 
29 


5.5 
5.5 
5.5 
5.7 
5.7 

5.1 
3.9 

11 
9.6 

11 

6.4 
3.8 
6.2 
3.8 

4.7 

3.3 
.1 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

29 
29 
29 
29 
29 

28 
28 
28 
28 
28 

28 
27 
25 
25 
25 

25 
25 
25 
25 
25 

21 
21 
22 

22 
22 

18 

18 

18 

17.5 

14 


0.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
5.0 
3.0 

2.0 
3.5 

4.6 
4.3 

4.4 

4.6 
4.6 
3.0 
3.3 
3.8 

3.0 
3.0 
2.9 
2.6 

2.8 

2.6 
2.8 
2.8 
2.8 
2.9 
3.3 

15 

15 . 
14.5 
14.5 
14 

12.5 

12 

10.5 

10.5 

10.5 

11 
9.6 
7.3 

9.3 

8.2 

6.9 
9.1 

7.8 
7.6 
8.2 

8.0 
7.8 
8.2 
8.7 
12 

8.9 
8.7 
8.4 
8.7 
8.7 
7.6 


4.1 
3.2 
2.4 
3.2 
3.9 

2.9 
4.3 
3.9 
3.5 
3.2 

2.4 
2.4 
3.2 
3.2 
3.0 

3.2 
3.3 
3.3 
3.3 
3.8 

3.8 
3.9 
3.8 
3.2 
3.2 

3.6 
3.5 
3.5 
3.2 
3.2 
3.6 

8.0 
6.7 
6.9 

8.7 
8.4 

8.4 
8.4 
8.7 
9.6 
9.3 

9.3 

8.9 
7.8 
7.1 
7.1 

7.3 
6.3 
6.3 
6.3 
7.3 

7.6 
6.5 
5.8 
5.4 
6.3 

7.3 

4.8 
4.8 
5.4 
6.1 
6.7 


3.8 
3 8 


2 


3 


3 5 


4 


3 5 


5 


2.8 


6 


3 2 


7 


3.0 


8 . ... 


3 6 


9 


3.3 


10 


2.1 


11 


1.5 


12 


1.9 


13 


1 9 


14 


2.0 


15 


2 3 


16 


2.3 


17 


2 1 


18 


2.0 


19 


1.9 


20.. 


1 4 


21 


1.2 


22.,.. 


1 5 


23 


1.8 


24 


1 8 


25 


1.8 


26 


1.6 


27 . 


1 6 


28 


1.4 


29 


1 8 


30 


1.2 


31 




1914-15. 
1 


8.0 


2 




8 4 


3 


6.0 
3.5 
1.9 

2.0 
1.7 
1.5 
1.1 
.9 

1.4 
1.9 
1.6 
1.4 
1.2 

1.3 
1.2 
1.2 
1.3 
1.3 

1.5 
1.6 
1.6 
1.6 
1.9 

2.3 
2.5 
2.0 
1.9 
1.9 
1.9 


6.9 


4 


7.6 


5 


8 


6 


6.7 


7 


8 9 


8 


8.9 


9 


8.7 


10 


9.8 


11 


9.8 


12 


9.8 


13 


9.8 


14 .... 


8.2 


15 


8.2 


16 . . . 


8.4 


17 


8 2 


18 






4.8 


19 






4.8 


20 






5.0 


21 






6.5 


22 






6.3 


23 




4.3 
4.3 
3.8 

3.0 
3.9 
4.3 
3.6 
3.6 
3.3 


6.3 


24 .... 


6.3 


26 


6.5 


26 


6.5 


27 


6.7 


28 


5.4 


29 


5.6 


30 


5.6 


31 





SAN- DIEGO RIVER BASIN. 



97 



Daily discharge, in second-feet, of Cuyamaca Water Co.'s flume at diverting dam, near 
Lakeside, Calif., 1912-1918— Contt.aed. 



Apr. 



May. 



July. 



Aug. 



6.5 
6.1 
5.9 
5.9 
6.9 

5.9 
7.2 
4.8 



4.4 
5.4 
5.4 
5.4 
5.4 



4.2 
4.2 



5.6 
3.8 
5.0 
6.1 

4.4 

7.4 
5.6 
3.5 
.0 
2.9 

4.9 
5.0 
6.2 
5.2 
5.2 

5-2 
5.2 
5.2 
5-2 
5.2 

5.2 
5.2 
5.2 
6.2 
5.2 

5.2 
5.2 
5.7 
5.6 
6.6 
5.6 



5.0 
5.0 
5.5 
5.7 

7.4 
4.8 
2.5 
2.0 
2.3 

2.4 
2.5 
2.5 
2.5 
2.4 

2.2 
2.2 
2.2 
2.4 
2.5 



3.6 
3.6 



3.4 
3.4 
3.4 
3.4 
3.6 



5.6 
5.6 
5.6 
5.6 
6.6 

5.6 
5.6 
5.6 
5.6 
5.6 

5.6 
6.6 
5.6 
5.6 
5.4 

5.4 
5.6 
6.6 
6.6 
5.6 

5.6 
5.6 

5.6 



6.6 
4.3 
3.7 
3.7 
3.7 



4.8 
10.5 

9.0 
7.2 
1.4 

1.8 



3.1 

4.4 



7.2 
15.5 



3.7 
3.7 
2.3 
2.3 
2.3 

2.3 
2.3 
2.3 
2.3 
2.3 

2.3 
2.3 
2.4 
2.6 
2.6 

2.6 
2.6 
2.6 
2.6 
2.6 

2.6 
3.8 
4.0 
4.6 
1.8 

6.2 
6.2 
9.1 
9.1 
9.1 
9.1 



14.5 

13 

15 

15.5 

10.5 

9.0 
9.0 
9.0 
9.0 
9.0 

9.4 
9.0 
9.0 

12 

14 

12 
10 



9.1 
9.1 
5.6 
4.3 



4.0 
5.0 
4.0 

4.0 
2.1 
1.4 
1.4 
5.6 

5.6 
6.2 
3.3 
3.0 
3.0 

2.9 
3.0 
3.0 
3.0 
3.0 
2.6 



2.3 
2.3 
2.3 
3.7 
4.0 

2.2 
.0 
.0 
.0 
.0 

.0 
.7 
1.0 
1.0 
1.0 

3.7 
3.7 
2.3 
2.3 
2.3 

3.3 
3.7 
2.1 
2.7 
3.0 

3.0 
3.0 
3.0 



3.0 
3.0 
3.0 
3.4 
6.6 

5.2 
3.7 

6.2 
5.2 

5.2 

5.2 
5.2 
5.2 
5.2 
5.2 

6.2 
5.2 
6.2 
5.2 
5.2 

4.8 
3.7 
3.7 
3.7 
3.3 

4.8 
6.1 
6.1 



.0 
.0 
4.3 
3.7 
3.7 

3.7 
3.3 
13 

26 
26 

26 
26 
26 
26 

26 

26 
26 



3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
2.0 
1.0 

.2 
.7 
3.1 



3.1 
3.1 
3.1 
3.1 
3.1 

3.1 
3.1 
3.1 
4.4 
5.2 



27 
21 
20 
20 
20 

19.5 

18.5 

19 

20 

26 

26 

26 

18.5 

18 

18 

17.5 

17.5 

16.5 

16 

15.5 

15.5 



5.2 
5.2 
6.2 
5.2 
6.2 

6.2 
5.2 
5.2 
5.2 
5.2 

5.2 
5.2 
5.2 
5.2 
6.2 

6.2 
5.2 
5.2 
6.2 
5.2 

5.2 
5.2 
6.2 
5.2 
5.2 

5.2 
3.7 
3.7 
3.7 
3.7 
3.7 



15.5 

14.5 

13 

12.5 

11 

10 
5.2 
13.5 



14 

14 

8.7 
7.6 
5.7 
11.5 



12 

12.5 

12.5 

12 

10 



7.0 
7.0 
7.0 



3.7 
3.7 
3.7 
3.7 
3.7 

3.7 
3.7 
3.7 
3.7 

4.4 

4.9 
4.9 
6.8 
8.7 
11.5 



8.7 
8.5 
7.6 

7.6 
7.2 
6.8 
6.5 
6.1 

4.9 
5.0 
7.0 
7.6 
9.1 



7.8 
5.2 
4.0 
3.7 
3.7 



5.9 
6.1 



5.2 
11.5 

8.5 



5.6 

5.7 
5.7 

5.2 
5.0 
4.9 
4.6 
4.4 

4.0 
3.7 
3.7 
3.7 
3.7 
4.2 



10 
8.5 
8.3 
8.3 



8.3 
10 
9.1 
8.0 

7.4 

7.4 
8.7 



7.6 
7.0 
7.0 
9.3 
7.6 

7.8 
7.6 
7.8 
8.0 
8.5 

8.0 
8.6 

10.5 
8.9 
8.5 

11 



5.2 
3.7 
3.7 
3.7 
3.7 

3.7 
4.0 
4.3 



3.7 
3.7 
3.4 
3.0 

3.0 
3.8 
4.3 
6.7 
6.2 

4.6 
4.0 
5.4 
3.1 
3.0 



4.0 
3.3 
3.1 



8.5 
8.0 
8.0 



6.1 
6.1 



5.9 
5.6 

5.6 
5.6 



6.6 
6.6 
6.6 



142131°— 21--WSP 447- 



98 SURFACE WATER OF PACIFIC SLOPE; SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Cuyamaca Water Co.'s flume at diverting dam, neco' 
Lakeside, Calif., for 1912-1918— Gontinned. 



Day. 



1917-18. 

1 

2 

3 

4 

5 

6... 

7 

R 

' 9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24..: 

25 

26 

27 

28 

29 

39 

31 



6.1 
6.3 
6.3 
6.5 

6.8 
8.0 
7.6 
7.6 

7.8 

7.8 
7.2 
5.9 

4.4 
3.7 

3.7 
3.7 
3.7 
3.7 
3.7 

3.7 
3.7 
3.7 
3.7 
3.7 
3.7 



3.7 
7.8 
4.6 
3.7 
3.8 

5.2 
7.6 
4.9 
1.5 
4.0 

3.0 
3.0 
4.3 
5.2 
5.0 

5.0 
5.0 
5.0 



4.0 
4.9 
5.2 
5.4 



5.7 
5.6 



Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


3.0 


3.7 


9.6 


26 


8.3 


7.4 


6.1 


^.8 


3.3 


4.0 


7.8 


26 


7.6 


6.8 


5.6 


10 


3.3 


9.8 


6.8 


26 


6.3 


4.4 


7.0 


10 


3.4 


11 


6.3 


26 


5.7 


4.0 


8.7 


9.3 


6.1 


21 


6.1 


24 


5.7 


4.9 


9.1 


9.1 


3.3 


23 


6.1 


19.5 


6.3 


4.3 


9.3 


9.8 


3.1 


22 


10.5 


20 


6.5 


2.7 


9.6 


10.5 


3.3 


23 


22 


18 


7.2 


2 4 


9.6 


10 


3.4 


25 


29 


18.5 


10.5 


4.4 


9.8 


10.5 


3.6 


25 


29 


18.5 


10.5 


6.5 


9.6 


10.5 


3.3 


25 


20 


17.5 


8.7 


5.6 


9.6 


10 


2.9 


25 


13.5 


18 


8.0 


6.6 


9.6 


10 


10 


26 


18 


18.5 


6.3 


6.5 


9.1 


10 


9.3 


26 


14.5 


19.5 


6.3 


5.9 


8.0 


10 


4.6 


ae 


28 


17.5 


5.7 


6.8 


7.2 


10.5 


3.1 


20 


28 


16 


6.3 


7.4 


7.2 


12 


2.7 


24 


28 


14 


5.9 


8.5 


6.5 


11.5 


2.6 


27 


28 


12.5 


7.2 


7.4 


6.5 


10 


1.8 


22 


26 


9.1 


8.3 


7.6 


7.4 


9.8 


1.8 


12.5 


15 


9.6 


7.8 


8.3 


6.5 


9.8 


2.0 


10.5 


25 


10.5 


8.0 


6.8 


7.6 


9.8 


2.0 


23 


27 


12.5 


8.3 


7.8 


8.7 


9.8 


2.0 


23 


28 


11 


9.1 


7.0 


9.3 


9.8 


2.0 


23 


25 


12 


7.0 


7.8 


9.6 


9.8 


2.0 


18.5 


25 


11.5 


6.6 


7.4 


9.8 


9.8 


16 


20 


27 


10 


6.6 


6.8 


9.8 


9.8 


17 


16.5 


26 


9.6 


6.6 


6.3 


9.8 


9.8 


7.0 


13. 5 


26 


8.3 


7.2 


6.3 


9.8 


10 


5.2 




26 


8.5 


14 


6.1 


9.8 


10.5 


3.7 




26 


8.7 


13.5 


6.5 


9.6 


10.5 


3.7 




26 




7.8 




9.6 


10.5 



Sept. 



10.5 
7.4 



6.3 
6.6 
6.5 
6.3 
6.3 

7.4 
8.7 

10.5 

10 



6.1 
6.6 
6.1 

6.3 
7.2 
8.0 
9.3 
9.6 



9.6 
10 



Note.— Probably no discharge during November, 1913. 

Discharge Oct. 27, '?8, 31, Dec. 6 and 7, 19^13, and July 8-10, 1914, estimated. No record Oct. 1-2 and Nov. 
17 to Dec. 22, 1914. No flow Jan. 18 to Apr. 7, Oct. 9^, 1916, and Feb. 7-11 and Dec. 1-18, 1917. Discharge 
July 24, 1918 interpolated. 

Monthly discharge of Cuyamaca Water Co.' s flume at diverting dam,, near Lakeside, Calif., 

for 1912-1918. 



1912. 

June 

July 

August 

September. . . 

1912-13. 

October 

November. . . 
December . . . 

January 

j^ebruary — 

March 

April 

May. 

June 

July......... 

August 

September. . . 

The year 



Discharge in second- 
feet. 



Maxi- 
mum. 



Mini- 
mum. 



12.6 i 

10.7 I 

10.4 ; 



8.2 
4.4 
4.0 



.2 
2.4 



2 

2.7 
.9 
.5 
4.0 
8.2 
5.5 
2.6 
4.2 
3.5 
3.2 
1.7 



9.04 
6.33 
3.20 



4.07 
3.58 
3. 12 
5.05 
12.0 
32.2 
14.6 
3.94 
5.95 
6.28 
3.60 
3.10 



Run^jff 
(total in 
acre- 
feet). 



514 
556 



250 
213 
192 
311 



242 
354 



221 

184 



8.11 5,870 



1913-14. 

October 

November 

December , 

January 

February 

March , 

April 

May , 

June , 

July , 

August 

September 

The year. .. 

1914-15, 
October 3-31.... 
November 1-16. 
December 23-31 

January 

February 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



3.5 
.0 
6.2 
19 



27 
25 
11 

4.6 
4.3 



6.0 
4.9 
4.3 

18 

32 



0.0 
.0 
.0 
.0 

3.5 
14 

6 

5.7 
.0 
.0 

2.4 

1.2 



1.3 
3.0 
1.8 
.1 



Run-off 
(total in 
acre- 
feet). 



1.81 
.0 

1.09 
2.55 
15.6 
21.0 
15.0 
11.9 
3.23 
2.50 
3.36 
2.25 



6.64 



2.89 
3.79 
5.56 
16.5 



111 



67 

157 



732 
192 
154 
207 
134 



4,80» 



105 
92 



342 
916 



SAN DIEGO RIVER BASIl!?, 



99 



3Iantkly discharge of Cuyamaca Water Co.^s flume at diverting dam, near Lakeside, Calif. ^ 
for 1912-1 9 is—Continued. 



Montli. 


Discharge ia second- 


Run-ofE 

(total in 

acre^ 

feet). 


Month. 


Discharge in second- 


Run-ofl 
(total in 


Maxi- 
mum. 


Mini- 
mum. 


Mean, 


Maxi- 
mum. 


Mini- 
mum, 


Mean, 


acre- 
feet). 


1914-15- 
Mafeb 


32 

26 

31 

29 

15 
9.6 
9.8 


23 
2.6 
3.3 

14 
6.9 
4.8 
4.8 


27.2 
16.4 
26.0 
24.4 
9.9» 
7.21 
7.35 


1,670 
976 
1,600 
1,450 
614 
443 
437 


1916-17. 
January 


10 
4.0 
6.1 
5.2 
5.2 

12.5 

11 
9.6 
7.0 


1-4 
.0 
3.0 
.2 
3.7 
3.7 
7.0 
5.6 
5.2 


5.52 
2.09 
4.71 
2.90 
4.96 
6.31 
3.48 
6.67 
6.28 


339 


April 


February 

March 


116 


May . 


290 




April . ... 


173 


July 


May 


305 




TuTifi 


375 


September 


July 


521 




410 
374 


1915-16. 


7.2 
7.4 
15.5 
15.5 
.0 
.0 
26 
27 
15.5 
11.5 
5.7 
9.6 


4.2 
2.0 
.0 

:S 
:§ 

15.5 
5.2 
3.7 
3.0 
2.4 


5.50 
3.47 
3.39 
6.09 
.00 
.00 
15.8 
21.8 
11.1 
5.39 
3.93 
5.88 


338 

206 

208 

374 





940 

1,340 

660 

331 

242 

347 


Septem'oer 

The year 

1917-18. 
October 


November 

December 

January 


12.5 


.0 


5.19 


3,760 


8.0 
7.8 
6.3 

17 

27 

29 

26 

14 
8.5 
9.8 

12 

10.5 


3.7 
J. 5 
.0 
1.8 
3.7 
6.1 
8.3 
5.7 
2.4 
5.6 
9.1 
5.6 


5.50 
4.79 
1.70 
4.-53 
19.6 
20.6 
15.9 
7.74 
6.24 
8. 56 
10.1 
8.08 




Febraary 

March 


338 


November 

December 

January 


285 


April 


105 


May 


279 


June 


February 

March 


1,090 


July 


1,270 




April 


946 


September 


May 


476 
371 


The year 


27 


,0 


6.88 


5,000 


July 


526 
621 


191&-17. 


7.4 
5.6 
9.1 


.0 
3.7 
1.8 


4.99 
5.35 
3.70 


307 
318 
228 


September 

The year 


481 


November 

Desember 


29 


.0 


9.37 


6,790 



CITYAMACA WATER CO.S FLUME i NEAR LAKESIDE, CALIF. 

LcMDATioN. — At patrolman's cabin, half a mile above trestle crossing at Los Coches 
Creek, 3 miles southeast of Lakeside, San Diego County, and 20 miles below 
intake on San Diego River. 

Records available. — January 1, 1907, to September 30, 1918. 

Gage. — Vertical staff in stilling box fastened to outside of flume just below patrol- 
man's cabin at same site as water-stage recorder. Position of gage has been 
changed slightly several times since station was first established, but datum has 
always been same as elevation of floor of flume. (See PI, IX, C.) 

Discharge measurements. — Made from foot plank across flume at gage. 

Channel and control. — In the fall of 1914 the flume was deepened 8 inches, and 
more tar-paper lining was put in. Elevation of flume appears to vary slightly 
with quantity of water flowing. Capacity of fiume slightly increased as a result 
of repairs made December 1-19, 1917. 

Diversions. — Water is diverted into the flume Irom South Fork of San Diego River, 
and a small quantity is diverted from this flume at Capitan Grande Indian Res- 
ervation above station. 

Extremes of discharge. — 1907-1918: Maximum mean daily discharge 25 second- 
feet February 16, 1918. No flow for certain periods nearly every yeai'. 



1- Previously kno\vn as San Diego flume. 



100 SUEPACE WATEE OF PACIFIC SLOPE, SO"CTHEIlX CALIFOKXIA. 

AccTTRACY. — Stage-discharge relation not permanent on account of changes in flume. 

The flume is in poor condition, and during the summer months contains a growth 
of moss. Rating cur\-e3 fairly well defined. Gage is read to hundredths three 
times daily. Water-stage recorder in operation during a part of the record; mean 
daily gage heights obtained by inspecting recorder graph. Daily discharge 
ascertained by apph"ing mean daily gage height to rating tables and by shifting- 
control method. Records for 1916 and 1917 fair: remainder of those for periods 
covered good. 

See description of Cuyamaca Water Co.'s flume at diverting dam near Lakeside, 
page 93. 

IHscharoe jneasurenutits of Cuyamaca Water Co.'s f.ume near Lakeside, Calif., for 1908- 

191S. 



Made by- 



Gage 
height. 



Dis- 
charge. 



1908. 
May 27 
Nov. 13 
Dec. 6 

1909. 
Jan. 25 
Mar. 23 

2o 
Apr. 6 

19 
May 25 

1910. 
Jan. 22 
Feo. 12 
Mar. 4 

11 

Apr. 1 

3 

25 

27 
May 6 

23 
Tone 3 

26 
Nov. 18 

1911. 
Feb. 10 
Oct. 9 



W.V. Hardv. 

do "... 

do 



W.V. Hardv. 

do :.. 

do 

.do. 



Clapp and Hardv . 
W.V. Hardy...'.. 



W.V.Hardy. 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 



W.V. Hardv - 
F.C. Ebertl-. 



1912. 
May 6 F.C. Ebert. 

Jime 29 do. . _ 

Aug. 20 , E. W. Case. . 
Oct. 4 ■ F.C. Ebert. 



1913. 
Jan. 23 
Feb. 17 
Mar. 16 
Apr. 15 
May 14 
June 20 
Aug. 24 



Feet. 
0.66 
..50 
.27 



.52 
.51 
.74 
.42 
.74 
.SO 



.35 
.53 
.56 



.64 
.30 



F 


C.Eb«»rt 




..do 




-.do 


H 


D. McGUsban 


F 


C. Ebert 




..do 




..do 




..do 



Oct. 3 
1914. 


do 




Feb. 1 


F.C. Ebert 


Mar. 3 


do 




24 


do 




Apr. 19 
Mav 12 


do 

do 




Oct. 5 


do 




16 


do 




Dec. 30 


D. A. McClong- 




1915. 


1 


Jan. 14 


D. A.McClong ,- 1 


21 


do 





See.-ft. 
9.6 
5.8 
1.8 



6.3 
6.2 
12.4 
4.5 
11.5 
11.6 



3.3 
7.8 
8.8 
9.8 

11 
6.8 

12 

12 

11 
8 

9.5 
8.1 
2.7 



14 




12.8 
10.4 
4.7 
2.6 



8.2 
3.6 
1.7 
42 
4.7 
3.0 
2.2 
.4 



1.7 

16 

16 

11 

12 
2.3 
2.1 
4.0 



2.0 
1.5 



1915. 
Jan. 27 



10 

25 

Mar. 3 

5 

10 
17 
24 
29 
Apr. 1 
7 

14 

21 

28 

May 5 

■ 12 

18 

19 

26 

i June 2 \ 

! 9) 

16 



F.C.Ebert 

D.A.McChing...-..- 

F.C. Ebert-... 

Ebert and McClung . . 

F.C.Ebert..-. 

Lee and Ebert 

C.H.Lee.. 

D. A. McClung... 

R.W. Dav 

.do. ■ 



F. C. Ebert - 
R. W. Dav- 
..-..do...'.- 
.do. 



F.C.Ebert....... 

...do 

R.W.Dav 

do...'- 

do 

.do- 



McChmg and Harritt.. 

do 

F.C.Eben.--- 

McChmg and Harritt.. 
do 





21 




30 


July 


8 


1916. 


Apr. 


13 




22 




Z) 


May 


7 




as 


June 


n 


July 


17 


Dec. 


15 


191 


7, 


Feb. 


14 


Mar. 


2S 


Apr. 


IS 


Wav 


'Z.^ 


Nov, 






8 




9 




10 




11 


Dec 


22 


1918. 1 


Feb. 


7 


Mar. 


9 


May 


7 


Aug. 


22 


Kept. 


' 



do 

---.do 

...-do--. 

McCltms and Ellis. 

D. A. McClung 

F.C.Ebert 



F.C.Ebert.... 

do 

do 

.do- 



D. A. McChmg.. 

F.C.Ebert 

do 

W. J. Isbell 



F.C.Ebert. 
do- 



McGlashan and Ebert. 

F.C.Eberr 

D. A. McClung 

do 

do 

do 

do 

F.C.Ebert 



D. A. MeCtang.. 

F.C.Ebert 

do 

do 

D. A. McClune... 



SAN DIEGO RIVER BASIN. 



101 



Daily discharge, in second-feet, of Cuyarhaca Water Co.' s flume near LaJceside, Calif., for 

1907-1918. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1907. 
1 








9.2 
9.5 
12.2 
10.0 

7.7 

7.2 
7.0 
10.0 
5.3 
4.5 

2.2 
3.6 
4.6 
5.7 
3.0 

3.2 
3.6 
1.7 
1.9 
2.3 

2.6 
3.0 
2.4 

2.7 
1.4 

1.3 
1.8 
1.9 
6.1 
4.3 
1.4 

4.5 
4.3 
3.9 
3.9 
3.9 

3.7 
2.4 
2.2 
2.3 
2.3 

3.9 
4.3 
5.9 
5.9 
5.5 

5.7 
6.8 
6.3 
5.0 
5.5 

7.0 
7.5 
8.2 
9.7 
11.1 

11.1 
11.1 
11.1 
10.3 
11.1 
11.6 


1.2 

.8 
.8 
.8 
1.5 

1.3 
1.2 
1.4 
1.5 
1.4 

1.5 

l:f 

5.3 
5.0 

5.9 
5.7 
5.3 
3.9 
1.9 

1.9 
2.3 
1.9 

4.6 
6.8 

6.3 
4.8 
2.7 

11.1 
11.1 
13.4 
5.7 
7.2 

7.7 
8.2 
8.7 
8.7 
5.9 

5.7 
5.5 
6.8 
2.4 
2.0 

3.9 
8.2 
.0 
.0 
5.5 

5.5 
5.5 
5.5 
5.5 
5.5 

5.5 
5.7 
5.0 
3.2 


2.7 
2.6 
2.4 

5.7 
4.5 

4.1 
4.1 
2.4 
2.4 
2.4 

2.3 
2.6 
2.9 
3.0 
2.7 

2.7 

2.7 
3.0 
2.7 
3.0 

4.1 
3.9 
3.6 
4.6 
3.6 

2.6 
3.2 

3.6 

3.6 
3.2 

5.5 

2.9 
2.9 
3.2 
2.7 
2.0 

1.9 
1.9 
1.9 

1.8 
1.8 

2.4 
4.5 
4.5 
4.5 
4.3 

4.1 

4.1 
4.3 
4.3 

4.8 

4.1 
4.3 
4.1 
3.9 
2.4 

4.8 
5.0 
3.7 
4.1 
4.8 
4.8 


6.8 
7.0 
6.3 
6.6 
6.6 

5.9 
6.3 
6.3 
5.9 
5.9 

5.9 

7.7 
7.7 
7.0 

6.8 

6.6 
6.3 
6.1 
5.9 
5.9 

5.9 
9.5 
11.1 
11.1 
11.1 

11.1 
11.1 
11.1 
11.1 
11.1 



4.6 
4.8 
4.8 
7.0 
6.6 

6.6 
7.0 

8.7 
9.2 

8.7 

8.7 
11.1 
11.1 
11.1 
10.5 

10.5 
10.5 
10.3 
9.5 
9.7 

10.5 
11.4 
9.2 
10.5 
11.4 

11.1 
10.5 
10.5 
11.1 

10.8 


11.1 
11.1 
11.1 
11.9 
10.0 

8.7 
8.7 

8.7 
8.7 
8.7 

11.6 
13.4 
12.5 
10.5 
10.0 

10.0 
9.7 
10.0 
10.0 
9.5 

10.0 
10.5 
11.4 
14.0 
14.3 

14.6 
14.9 
15.2 
16.1 
16.1 
16.1 

11.1 
12.5 
12.5 
11.9 
11.4 

11.1 
10.8 
10.5 
10.3 
10.3 

10.3 
11.1 
11.6 
10.8 
10.3 

9.7 
9.5 
8.4 
7.6 
6.1 

7.5 
6.6 

6.8 
5.7 
5.9 

7.7 
8.4 
8.4 
7.7 
7.7 
8.0 


16.1 
13.1 
10.8 
10.0 
6.6 

7.0 
7.0 
8.4 
9.5 
8.2 

8.7 
9.5 
11.6 
16.1 
8.2 

7.0 
8.2 
9.2 

8.7 
8.2 

9.2 
10.0 
9.5 
9.5 

8.7 

9.2 
9.2 

8.7 
8.4 

8.7 

8.0 
6.6 
6.6 
6.3 
6.1 

6.3 
5.9 
5.9 
5.9 
5.9 

7.0 

8.2 
7.7 
6.6 
6.3 

6.8 
7.0 
7.5 
7.5 
7.5 

7.0 
7.0 
7.2 

6.8 
7.0 

7.0 
7.5 
7.7 
7.7 
7.5 



8.7 
9.2 
10.5 
11.1 
10.8 

10.8 
10.8 
11.1 
10.5 
9.7 

9.7 

8.4 
8.2 
8.2 
9.7 

10.5 
10.5 
9.7 

8.7 
9.5 

9.7 
9.5 
9.5 
9.5 
9.5 

10.0 
10.0 
10.3 
9.5 
9.2 
9.5 

7.5 
7.7 
7.7 
7.2 
6.6 

6.8 
6.8 
7.2 
8.0 
8.2 

8.4 
8.0 
8.0 
8.2 
8.2 

8.4 
8.7 
7.7 
7.0 
5.9 

5.9 
8.0 
8.2 

7.7 
8.0 

4.3 

6.8 
7.2 
7.0 
7.2 
8.4 


9.5 

8.7 
8.2 
7.5 
7.5 

7.7 
7.2 
7.0 
6.3 
7.0 

8.4 
8.7 
9.7 
9.5 
9.5 

14.0 
10.0 
9.7 
9.7 
10.0 

10.5 
9.5 
8.2 

7.7 
7.5 

8.0 
9.5 
9.7 
9.5 
10.0 
10.3 

8.7 
8.7 
9.2 
8.2 
7.2 

7.7 
6.1 
6.8 
7.7 
7.7 

4.1 
1.8 
3.0 

7.5 
7.7 

5.7 
6.8 
7.2 
7.5 
8.0 

7.7 
7.7 
7.5 
7.2 
7.5 

8.2 
8.0 
8.0 
8.0 
8.0 
8.2 


10 


2 








8 2 


3 








6 8 


4 








7 5 


5 








10 


6 








9 5 


7 








9.2 


s 








8 


g 








8 2 


10 








9 7 


11 








9 7 


12 








10 


13 








10 


14 








10.3 


15 








10 3 


16 








9 7 


17 








10 


18 








10.0 


19 








10 3 


20 








10 3 


21 








9 2 


22 








5 7 


23 








6 1 


24 








10 


25 








10 


26 








10 


27 








9 7 


28 . 








10 


29 








8 7 


30 








9 2 


31 










1907-8. 
1 


8.4 
8.4 
9.2 
8.4 
8.0 

7.7 
8.2 
7.5 
6.3 
6.8 

6.8 
6.6 
6.1 
6.3 
9.2 

8.4 
7.0 
5.5 
5.3 

5.7 

3.7 
5.0 
7.0 

5.7 
6.3 

6.8 
6.1 
6.3 
6.6 
2.9 
3.2 


4.5 
3.6 
4.5 
4.3 
4.1 

3.2 
3.9 
4.6 
4.6 
2.3 

4.6 
4.3 
3.7 
2.0 
.2 

.9 
1.7 

.4 
1.2 

.0 

.0 
.0 
.3 
6.1 

6.8 

6.8 
7.0 
2.2 
4.3 
2.7 


5.9 
2.3 
4.3 
2.6 
6.3 

2.4 
7.2 
7.0 
1.7 
,6 

.9 
1.5 

.6 
.7 
3.6 

.4 
.2 
.1 

.0 

1.8 

2.2 
4.1 
1.7 
1.7 
3.6 

.0 
1.5 
3.6 
5.9 
9.2 
2.9 


7 7 


2 


6 8 


3 


7.2 


4 


8 2 


6 


7 7 


6 


6 3 


7 


5.9 


8 


6 1 


9 


7 2 


10 ... - - 


7 7 


11 


6 3 


12 


6.3 


13 


5 


14 


6 1 


15 


7.2 


16 


8 2 


17 


8 4 


18 


8 4 


19 


8 7 


20 


7 


21 


6 8 


22 


6 3 


23 


8 4 


24 .... .*. . 


9 7 


25 


6 3 


26. ... 


9 2 


27 


9 2 


28 


9 2 


29 


8 7 


30 . ... 


8 


31 





102: SURFACE WATER OF PACIFIC SI.OPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Cuyamma Water Co.' s flume near Lakeside, Calif, for 
1907-1918— Gontmned. 



Apr. 



. May. 



July. 



7.0 

8.0 
8.0 
r.5 



6; 8 

6.3 
6.1 



7.5 
7.t 
7.5 



6.8 
6.6 



5^.0 
5.5 

5.3 

4.6 
4.3 

4.5 
4.8 



5.9 

517 
5.7 

5.7 
5.5 
5.9 



4,8 
5.3 
5.0 
2.6 

2.7 
5.3 
5.5 
5.7 

5.5 



5.3 

4.6 
2.7 
.3 



2.9 
5.5 
5.5 



4>3 
3.2 

2; 6 
2-7 
2.7 

2,6 
3.( 
3,( 
2.7 
2;0 

1.7 
1.5 
1.4 



2.2 

316 



5.4 
6.0 
4.6 
2.8 
2.3 

2.3 
2.0 
2.1 
3.0 
5.4 

5.6 
5.6 
3.1 



7.5 
.6 



4.2 

r.i 



13 
4.6 
2.8 
4.0 
3.3 

2.8 
3.3 
5.0 
4.0 



3.0 
3.6 
5.0 



.3 
.3 



3.0 
,0 



.0 

.7 



.0 

4.8 
2.0 



.1 
5.0 
2.i 
3.0 

1.2 
1.0 



4.8 
5.0 
4.4 



3.1 

4.8 
4.0 
1.8 



2.5 
5.2 
4.2 

4.2 
5.2 

8.2 
8.4 



8.2 
8.0 
8.0 



12 
12 
12 

12 
13 
13 
13 
13 

12 
12 
13 
13 
13 

12 
12 
13 
13 
13 

13 

13 

12.4 

13 

12 



12 
12 



10 

8.2 



7.3 
2.0 



8.4 
8.2 

7.5 
6.6 
6.0 
8.7 
10 

11 
10 
11 
11 

9.4 



6.2 
6.0 

5.8 



8.0 
6.4 



5.2 

5.2 
5.6 
6.6 
6.9 

6.9 
8.0 
8.0 
7.1 
6.9 

7.5 
7.7 
7.5 
8.0 
1.1 



7.3 
7.1 
7.1 

6.6 



7.7 
8.0 
8.0 
7.3 
6.6 
6.0 



5.4 
7.1 
8.0 
8.0 
8.2 

7.5 
5.8 

6.i 

8.2 

8.0 
8.2 
7.3 
9.6 



.0 
.0 
6.6 
7.5 



7.1 

7.7 
7.3 



5.8 
0.8 
0.8 

0.8 
0.6 
0.6 
6.4 
5.8 

5.8 
6.4 
6.2 
6.9 
7.3 

6.4 
5.{ 
5.8 
5.8 
5.8 



5.2 

4.4 



6.4 
8.4 
8.2 
6.0 
5.0 
5.0 



5.4 

5.8 
5.6 



6.4 
6.5 
6.9 



4.2 
3.8 
2.3 



6.0 
5.6 
4.6 
4.0 

5.6 
5.8 
7.1 
5.6 



3.0 
1.7 
2.0 

2.8 
3.0 



7.3 
5.2 
5.0 

7.7 
9.4 
9.4 



8.2 
7.3 
7.5 
7.1 

7.7 



6.9 
3.7 
2.5 
2.0 
1.6 



5.0 
4.4 
42 
€0 
5.0 

4.0 
4,4 
3.5 
3.0 
3.0 

2; 7 
2.8 
2.2 
2.5 
1.6 



.0 
.0 
6.9 
2.2 
.0 



.0 
.2 
.0 



3.3 

7 A 
3.2 

2.8 

1.7 
.7 
.0 
.0 
.0 

1.3 
4.4 
3.3 
1.7 
.0 

5.6 
5.4 



.0 
.9 
.0 
7.4 
6.9 

4.8 
.0 
.0 



9.2 
8.5 
2.0 
.2 

4.4 
8.0 
8.0 

7.4 

7.4 

7.4 
7.1 
7.! 
8.5 
7.1 

7.J 
4.0 

.5 
2.1 

.0 
1.1 



7.1 
5.0 
5.2 
2.4 
2.0 



3.2 
6.7 
8.0 
4.2 

2.4 
2.4 
3.0 
5.2 

8.5 

10.4 
10.2 
10.2 
12.3 
14.2 

13.6 
12.5 
12.3 
11.4 
12.0 

12.5 
12.5 
12.8 
12. 5 
7.6 



12.5 
12,3 
H.7 
10. i 
10. t 

11.4 
11.4 
10.7 
9.7 
9.5 

9.5 
9.0 
8.5 
8.7 
10.2 

9.7 
8.0 
7.( 



9.5 
8.5 

7.8 
7.1 
6.7 

7.4 

7.4 
7.6 
7.6 
8.3 
9.5 



9.0 
9.7 
9.9 
9.7 



9.5 

8.5 
8.0 



6.2 
6.0 
8.0 
9.0 

8.7 



7.8 
7.6 

7.8 
8.3 
8.3 
8.3 

8.7 



8.3 
8.0 



8.7 
8.7 
8.3 
8.0 
7.8 

9.7 
8.7 
7.6 
7.4 



7.1 
7.6 

7.8 
8.5 



8.3 
7.6 
7.1 



8.0 
7.4 
8.0 

8.7 
8.5 
7.1 
6.4 
6.0 



6.7 

7.8 



7.8 
8.0 
8.7 



8.5 
8.7 
8.7 
9.0 
8.3 

7.8 
8.3 
8.0 
o8.S 
6.7 



5'. 4 
5. 4 
T-.l 

8.3 



SAlSr DIEGO EIVER BASIN. 



103 



Ikiily discharge, in second-feet, of Cuyamaca Water Co.'s flume near Lakeside, Calif ., for 
1907-1918— Gontiimed. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. July. 


Aug. 


Sept. 


1910-11. 
1 


9.0 
9.0 
10.2 
10.9 

8.7 

7.6 
7.8 
8.7 
10.2 
9.9 

12.0 
9.5 
9.7 
9.7 

8.3 

2.7 
.0 
.9 
5.4 
5.4 

7.6 
8.5 
5.0 
4,2 
6.9 

7.4 
6.7 
5.8 
6.2 
5.6 
6.0 

.0 
.0 
.0 
.1 
.0 

.1 

.0 
.0 
2.2 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 
.0 


: 5.8 

6.0 
5.8 
6.0 
4.8 

2.2 
4.6 
6.9 
7.6 
6.9 

7.4 
7.1 
5.8 
5.6 
3.0 

.6 
.4 
2.8 

4.8 
5.4 

5.2 
5.2 
4.4 
3.2 
3.0 

5.0 
5.8 
4.6 
4.6 
4.4 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
,0 

.0 
.0 
.0 
.0 
.0 


4.2 
4.0 

4.8 

6.4 

1 7.8 

■ 6.7 
5.6 
3.3 

6.2 
5.6 

5.2 

4.6 
5.0 

4.8 
4.8 

5.0 

5.4 
5.4 

5.8 
7.8 

5.8 
2.3 
1.8 
3.9 
5.2 

5.8 
4.6 
4.2 
4.6 

4.8 
3.2 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.7 
3.0 
.4 


2.5 
2.7 
2.5 
4.6 
5.2 

5.4 
5.6 
5.6 
6.4 
6.4 

6.2 
8.3 

8.7 

7.8 
7.6 

9.5 
9.5 

8.7 
6.9 
5.4 

4.4 
3.9 
3.2 
4.2 
6.7 

8.0 
10.2 
8.5 
9.5 
10.4 
10.2 

.6 
.2 
.2 
.0 
.0 

.2 
.0 
.0 
.0 
1.5 

.0 
.6 

1.0 
.0 

3.0 

.1 
.4 
2.7 
1.5 

.8 

.8 
.8 
.6 
.3 
1.1 

1.0 
1.1 
1.7 
1.5 
1.6 
1.0 


11.2 
11.4 
9.5 
4.6 
5.2 

10.9 
13.1 
12.8 
13.1 
13.1 

H.7 
9.9 
9.9 
11.4 
11.4 

10.9 
9.0 
10.9 
10.9 
10.9 

11.4 
10.9 
10.4 
10.4 

8.0 

1.0 
1.2 
3.0 

1.0 
1.0 
1.0 
1.0 
1.0 

.9 
.9 
1.0 
1.0 
1.1 

1.1 
1.0 
1.0 
1.0 
1.0 

.9 
.9 
.9 
.9 
1.3 

1.8 
1.5 
1.1 
1.3 
1.1 

1.0 
LI 
1.0 
1.0 


3.0 
8.0 
3.2 
2.5 
3.4 

2.5 
2.1 

2.1 
4.2 
4.4 

4.4 
3.0 
2.5 
1.5 

1.0 

5.4 
9.0 

7.8 
7.4 
7.4 

7.1 
8.0 
6.9 
4.8 
6.7 

7.1 

7.6 
8.7 
10.2 
10.9 
11.4 

2.0 
5.0 
5.8 
6.4 
9.0 

9.7 
8.0 
5.4 
6.4 
4.4 

11.2 
11.7 

m.9 

13.9 
14.4 

14.4 
12.2 
13.9 
13.9 
13.6 

13.3 
13.9 
13.3 
11.4 
12.5 

12.2 
11.7 
13.3 
13.9 
14.7 
1^.3 


9.9 
8.5 

12.2 
2.5 

11.7 

10.9 
9.9 
10.2 
11.7 
11.2 

11.7 

12.2 

.0 

.0 

12.8 

13.3 
13.6 
14.8 
15.3 
15.6 

11.7 
12.2 
14.8 
15.0 
13.1 

13.3 
12.8 
8.3 
10.9 
10.9 

14.4 
14.4 
13.6 
12.8 
14.4 

13.6 
14.2 
16.1 
15.0 
15.0 

14.4 
12.2 
8.5 
8.5 

9.7 

12.8 
12.5 
12.2 
13.1 
13.1 

12.8 
8.0 
8.5 

14.4 

14.2 

14.7 
14.7 
14.4 
15.0 
14.7 


10.9 
11.4 
11.7 
9.5 
11.4 

9.5 
10.9 
10.4 

9.5 

8.7 

8.5 
8.5 

7.8 
7.6 
8.5 

8.5 
7.8 
7.1 
6.9 
5.6 

4.4 
2.5 
4.4 
8.0 
8.5 

9.0 
9.5 
9.5 

7.6 
5.8 
6.0 

11.4 
5.0 
7.4 

13.6 

12.8 

15.0 
13.1 
12.0 
10.9 
10.7 

5.8 
5.6 
5.2 

8.5 
10.4 

6.7 
12.5 
15.3 
15.3 
15.0 

15.6 
14.7 
15.3 

12. 8 
14.4 

14.4 
14.2 
13.9 
13.9 
14.7 
14.4 


6.2 
5.6 
3.2 
8.0 
8.0 

5.4 
3.4 
2.8 
2.7 
1.2 

2.7 
1.0 
1.3 
3.9 
5.6 

6.4 
7.6 
7.4 
1.0 
.0 

.0 
.0 
2.8 
7.4 
7.6 

8.0 
8.3 
1.8 
.0 

.0 

14.2 
13.1 
12.0 
10.9 
10.7 

10.7 
10.2 
9.5 
9.0 

9.7 

9.5 
9.0 
8.0 

8.5 
8.5 

7.6 
6.4 
3.9 

5.6 

7.1 

8.0 
10.4 
10.7 
11.2 
10.4 

9.0 
9.0 
9.5 
10.2 
11.7 


0.0 
.0 
.9 

7.1 

7.6 

8.0 
7.1 
1.0 
.0 
.0 

.0 
.0 
.0 

7.4 
8.5 

7.4 
5.0 
4.8 
4.6 

5.8 

7.6 
8.5 
1.7 
.0 
.0 

.0 
.0 
.0 
1.0 
6.2 
7.4 

8.7 
7.6 
7.4 
7.8 
7.6 

6 4 


7.8 
8.3 
7.8 
7.1 

7.4 

7.1 
7.4 
2.4 
.0 
.0 

.0 
.0 
.9 

6.7 
7.4 

7.8 
8.5 
9.0 
8.5 
7.6 

5.6 
3.0 
1.2 
1.3 

1.8 

3.2 
6.7 

7,1 
6.9 
5.8 
6.7 

5.6 

4.5 
7.6 
8.0 

8.5 

a 7 


6.4 


2 


6.7 


3 


6.4 


4 


6 4 




6.4 


6- 


6 


7 


5 6 


8. . . . 


5 4 


9 


3 2 


la 


2 5 


11 


1 


12. 


2.1 


13 


2 2 


14 . 


2 7 


15 


3.4 
3 9 


16 


17 


3 9 


18 . 


3.5 
3.2 
2.5 

1 3 


19 


20 . . . 


21 


22 


1 5 


23..., 


2 


24.. . 


2.4 

.0 

.3 
.1 




25 


26 


27 


28 


29 


.3 


30 


31 




1911-12. 
1. 


2.7 
3.9 
4.4 
4.2 
3.9 

2.5 
2.1 

2.2 

2.2 
3.2 

2.1 
1.6 
2.0 
2.7 
2.1 

2.5 

2.8 
3.2 
2.8 
2.0 

2. J 
2.2 
3.2 
2.7 
2.7 

2.7 

2.8 
2.7 
2.5 
2.5 


2.. 

3 


4.... 


5 


6 


7 


8^3 8!o 
10.2 8.3 

6.4 1 3.9 
7 6 s ^ 


8. 


9.. 


10 


11 

12 


7.6 
8.0 
8.5 
8.5 
8.3 

7.1 

7.4 

6.7 

7.4 
8.5 

7.6 
8.0 

7.8 
8.5 
7.8 

6,2 
5.6 
6.9 
8.0 
8.0 
6.7 


8.7 
8.5 
4.6 
4.0 
5.8 

1:1 

7.4 
7.6 
7.8 

5.2 
4.2 
2.0 
1.5 
8.0 

7.8 
1.1 
.0 
.0 
.4 
2.2 


13 


14.. 


15 


16.. 


17 


18. . 


19.. 


20 


21 


22 


23 


24 


25 


26 


27 

28. 

2&... 


30...... 


3K 



104 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Cuyamaca Water Co.' s flume near Lakeside, Calif., for . 
1907-1918-—GoJitimiQd. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1912-13. 
1 


1.4 
2.1 
2.1 

2.3 

8.7 

10 

11 
8.7 
5.6 
3.1 

1.2 
.2 
2.0 
2.0 
4.2 

2.5 
4.2 
3.6 
3.3 
4.2 

4.0 
4.2 
4.0 
3.6 
4.0 

4.2 
2.3 
2.5 
2.3 
2.1 
2.5 

2.0 
1.8 
.4 
.7 
.8 

.7 
.9 
.7 
.2 

1.4 

.7 
.4 
. 5 

.7 

1.0 
1.0 
1.4 
1.0 
.9 

1.6 
.5 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.2 


2.6 
2.5 
2.6 
2.0 
2.1 

3.1 
3.3 
2.5 

2.8 
3.0 

3.0 
3.1 
2.6 
2.6 
2.5 

2.5 
3.0 
2.5 
2.1 
2.1 

2.1 
2.0 
2.0 
2.0 

2.8 

2.6 
2.1 
2.0 
2.0 
2.1 


2.1 
1.6 
1.6 
2.3 

2.8 

2.5 
2.8 
2.3 
2.0 
1.8 

1.8 
2.0 
2.3 
2.1 
2.3 

2.1 
2.3 
2.5 
2.3 
2.5 

2.1 
2.3 
3.0 

2.8 
3.1 

.7 
2.8 
2.5 
2.3 
2.3 
3.0 


2.8 
2.3 
2.0 
2.0 
1.7 

.0 
.0 
.1 
.2 
.2 

.2 
6.9 
6.6 
6.0 
4.2 

4.8 
7.3 
7.5 
7.5 
6.9 

7.1 
5.4 
7.1 
6.4 
6.2 

4.6 
4.0 
3.3 
4.0 
3.0 
2.8 


2.8 
2.5 
2.3 
2.1 
5.0 

2.6 
3.6 
4.0 
4.2 
4.6 

5.8 
5.6 
5.6 
6.0 
5.6 

4.8 
3.5 
3.5 
3.5 
3.3 

3.5 

4.4 
7.7 
7.1 

8.7 

7.7 
8.7 
8.2 

...... 



1.6 
1.3 
1.2 
.9 
3.0 

7.7 
10.0 
10.5 
11.5 
11.5 

12.3 
12.6 
12.1 
12.3 
12.6 

10.3 
11.5 
11.5 
10.5 
6.0 

13.7 
3.3 
10.5 
13.7 
13.2 

15.4 
14.8 
15.1 


8.2 
8.0 
6.9 
6.4 
7.3 

8.9 
9.1 
9.6 
9.1 

8.9 

9.6 
8.9 
8.2 
9.9 
9.6 

2.5 
10 
12 
13 
14 

11 

8.7 
10 
11 

9.4 

10 
10 
11 
11 
11 
11 

15.1 
16.0 
16.0 
15.7 
16.3 

16.0 
15.7 
15.7 
15.7 
15.7 

16.0 
16.0 
16.0 
16. 6 
17.2 

16.9 
16.6 
16.6 
16.9 
16.9 

17.5 
17.2 
17.2 
17.5 

17.8 

17.5 
17.2 
18.1 
18.1 
15.4 
14.6 


8.4 
8.4 
10 
9.9 
9.9 

14 
9.1 
9.1 
9.1 

8.9 

8.4 
16 

9.1 
11 
12 

11 
12 
13 
13 
13 

13 

13 
9.9 
7.5 

10 

7.7 
7.7 
6.4 
5.2 
6.9 

16.0 
16.6 
15.4 
15.7 
16.3 

16.6 
16.3 
16.6 
15.4 
15.7 

15.7 
15.7 
15,1 
14.0 
13.4 

12.9 
12.4 
11.8 
10.8 

6.6 

8.6 
12.9 
14.0 
17.2 

18.4 

17.2 
18.7 
17.8 
18.1 
15.7 


7.5 

7.1 
4.0 
3.6 

4.4 

4.0 
4.0 
3.6 
3.5 
4.0 

4.2 
4.4 
4.4 
4.6 
4.4 

4.0 
2.6 
2.6 
2.0 
2.0 

2.0 
1.8 
2.0 
2.0 
2.1 

2.8 
2.6 
2.8 
3.1 
2.8 
2.6 

16.3 
16.9 
16.9 
16.6 
16.3 

15.4 
14.0 
11.8 
12.3 
15.7 

14.2 
12.6 
13.4 
12.3 
12.1 

11.5 
11.8 
12.1 
11.3 
9.0 

9.0 
8.4 
8.8 
8.4 
8.4 

8.8 
8.6 
8.4 
7.7 
7.0 
6.6 


3.3 

4.8 
3.5 
4.4 
4.0 

3.5 
3.1 
3.0 

2.8 
4.0 

3.6 
4.2 
5.0 
5.0 
5.6 

6.0 
6.0 
5.6 
3.6 
3.5 

4.0 
5.4 
7.1 

6.4 
6.2 

6.4 
6.0 
7.3 
6.6 

5.8 

6.2 
6.2 
6.2 
5.8 
5.6 

5.6 
5.6 

5.8 
7.5 
8.1 

6.8 
3.5 
5.0 
5.0 
4.2 

4.2 
2.8 
.8 
.5 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 


5.8 
5.4 
5.4 
4.2 
5.8 

3.5 
3.6 
4.4 
5.4 
5.4 

5.2 

5.8 
6.0 
5.8 
5.8 

6.0 

6.6 
6.4 
6.2 
6.4 

5.2 
4.4 
4.0 
3.5 
3.3 

2.6 
2.6 
2.8 
4.0 
3.6 
3.8 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 

4.8 

2.4 
3.5 
6.0 
6.0 
3.7 

6.8 
6.2 
5.2 
5.2 
5.4 

5.2 
5.0 
6.0 
4.8 
5.0 

4.8 
4.8 
4.6 
5.0 
5.0 
5.0 


3.5 
3.3 
2.8 
2.5 
2.6 

2.8 
2.1 
1.8 
2.5 
2.1 

2.3 
2.5 
2.1 
2.1 
2.0 

2.3 
2.3 
2.3 

2.8 
3.0 

3.5 
3.1 
2.6 
2.5 
2.5 

2.1 
2.5 
3.1 
2.8 
3.3 
3.6 

5.0 
4.8 
3.8 
3.8 
5.8 

4.6 
5.0 
5.8 
5.0 
.4.0 

4.4 
3.3 
3.8 
4.4 
5.0 

5.0 
5.0 
5.0 
3.7 

4.4 

5.0 
5.0 
5.0 
4.0 
4.2 

4.6 
4.8 
4.8 
5.0 
3.8 
4.4 


2.8 


2 


2.0 


3 


1.4 


4 


2.5 


5 


1.3 


6 


.7 


7 


2.1 


8 


2.8 


9 


3.0 


10 


1.8 


11 


.8 


12 


2.1 


13 . 


2.5 


14 


2.3 


15 


2.5 


16 


2.1 


17 


1.8 


18 


1.4 


19 


2.0 


20 


2.0 


21 


2.0 


22 


1.6 


?3 


2.1 


24 

25 


1.8 
2.0 


26 


1.6 


27 


1.6 


28 


1.4 


29 


1.4 


30 


1.3 


31 




1913-14. 
1 


5.2 


2 








5.4 


3 . 








5.2 


4 








5.2 


5 








4.8 


6 








4.8 


7 






4.8 


8 .. 






4.8 


9 


1 




4.8 


10 






3.3 


11 








3.8 


12 








4.0 


13 








3.5 


14 








3.3 


15 








3.5 


16.. 








3.8 


17 








3.8 


IS 








3.7 


19 . . 








3.5 


20 








3.5 


21 








3.2 


22 








3.2 


23 








3.3 


24 








3.5 


25 .. 








3.5 


26 






.1 
.3 
.5 
1.0 
4.0 
2.1 


3.3 


27 






3.2 


28 






2.8 


29 , 






2.8 


30 






3.0 


31 









SAN DIEGO RIVER BASIN. 



105 



Daily discharge, in second-feet, of Cuyamuca Water Co.'s f-ume near Lakeside, Calif, for 
1907-1918— Continued. 



Apr. 



May. 



June. 


July. 


Aug. 


8.5 


13 


10 


8.7 


13.5 


8.0 


K.fi 


9.5 


8.0 


10.5 


8.5 


9.8 


13 


8.0 


9.2 


12 


9.0 


8.2 


14 


8.5 


8.0 


16 


11.5 


8.0 


15 


12.5 


8.5 


15 


14 


10 


16 


1.3.5 


9.8- 


15 


13 


9.2 


12 


9.5 


8.8 


12 


11 


7.2 


14.5 


10.5 


7.7 


14 


9.5 


7.0 


14 


U 


7.2 


15 


8.0 


5.5 


14 


8.2 


6.8 


12 


8.5 


7.0 


n 


8.0 


7.2 


11.5 


8.0 


6.8 


13 


7.5 


6.0 


13 


9.0 


4.9 


13 


12 


6.5 


11 


10 


8.8 


10 


10 


6.0 


10 


10 


5.8 


10 


9.8 


5.8 


14 


9.2 


7.0 




9.8 


7.2 


19 


16 


9.0 


18.5 


12.5 


7.2 


19 


11 


7.2 


20 


11.5 


8.0 


19.5 


12.5 


6.8 


18 


9.5 


6.5 


15 


11 


6.8 


19.5 


11.5 


7.0 


20 


10 


7.8 


21 


10 


7.0 


21.5 


9.2 


6.5 


20 


10 


6.2 


20.5 


10 


6.0 


19.5 


13 


7.2 


13.5 


15 


6.5 


19.5 


17 


6.5 


15.5 


12.5 


7.0 


14.5 


10 


7.8 


21 


10 


9.2 


20 


10 


9.5 


21 


10 


9.5 


22.5 


9.0 


6.8 


21 


8.0 


6.0 


17.5 


8.0 


6.5 


17.5 


8.5 


5.3 


17.5 


7.5 


14.5 


17.5 


6.8 


9.5 


17.5 


6.0 


8.2 


18 


6.5 


7.0 


17.5 


6.5 


6.5 




7.5 


5.8 



3.3 
3.5 



7.0 
7.0 
7.0 

7.2 
7.2 
7.2 
7.0 

7.5 

7.5 
7.0 
7.0 
7.5 
7.5 

7.0 
6.5 
7.5 
3.5 
5.1 

3.5 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
5.1 
5.1 
5.1 



2.8 
3.0 
2.8 
3.5 

4.8 

3.8 
3.8 
3.8 
4.6 



3.8 
5.0 
2.3 
1.5 
1.0 

1.3 
1.5 
.3 



4.7 
4.7 
4.7 
4.7 
4.7 



3.3 
3.8 
3.8 
4.1 
3.7 



7.2 

7.8 



7.2 
6.5 
6.5 
6.0 
10 

11.5 
9.5 
3.2 
5.1 



2.6 
2.3 
1.8 
1.8 
1.7 

1.9 
2.4 
1.4 
1.4 
2.9 

2.9 
7.0 
6.5 
1.9 
2.8 
1.7 



3.3 
3.9 
2.3 
2.5 
3.0 

3.2 
3.0 
2.8 
2.1 
2.2 

2.0 
2.2 
2.1 
2.2 
2.3 

2.1 
2.3 
2.3 
2.1 
1.5 

1.6 
3.9 
13 

16.5 
16.5 

14.5 

17 

12.5 

7.5 
9.7 
14 



1.4 
2.3 
3.9 
10 

7.8 

3.9 
3.2 
2.3 
2.6 
2.6 

3.9 
3.7 
3.9 
6.0 
9.5 



.0 
.0 
5.5 
5.5 
5.3 

3.2 
.0 
.0 
.0 
.0 
.0 



18.5 
19.5 
6.3 
4.7 
15.5 

12 

16.5 

21 

21 

17.5 

.2 
.0 
.0 
.0 
.0 

.0 
.0 



17 

11.5 

16.5 

18 

20.5 

20.5 

20.5 
20.5 

18 



18 
18 
18 
18 
18 

18.5 
18.5 
18.5 
18 

18 

17 

16.5 
16 
15 



17.5 
18.5 
18.5 
18.5 

18.5 

21 
20 
19 
18 
18.5 

19.5 

18.5 

18 

18 

18.5 

18.5 



18 

18.5 

18.5 

18 

18 

18 
18 
18 
18 
18.5 

18.5 
18.5 
19.5 
20.5 
21.5 

21.5 

21.5 

21.5 

22 

22 

20.5 

10.5 

10.5 

10 

10 

15 

10 
9.4 
8.1 

12 



12.5 
13 



14 

14.5 
14.5 
17.5 

21 

21 

19.5 

23.5 

23.5 

23.5 

22.5 

24 

20.5 

21 

22.5 

21.5 

22 

21.5 

21 

IS. 5 
21 



10 

9.5 
10 
10.5 

5.2 

6.9 
9.6 

14 

19.5 

22 



.22 
22 

22 
19 
16 
12 



8.7 
6.9 

9.2 
9.0 
9.1 
9.7 



22.5 

19 

20.5 

22 

23 

24 
24 

24 
23 
24 

24 

24 

23.5 

23.5 

23.5 

23 

23 

23 

22.5 

22.5 

22.5 
22 
22 
22 

22 

22 

20.5 

20 

20 

19.5 

19 



106 SURFACE WATER OE PACIEIC SLOPE, SOUTHERN CALIFORilinA. 

Daily discharge, in second-feet, of Cuynmaca Water Co.^s flume near Lakeside, Calif., for 
1907-1918— ^ontimied. 



2.6 
5.7 
2.8 

5.. 5 
3.8 
5.5 
5.9 



4.5 
5.2 
4.4 
4.5 

5.2 

5.2 
4.4 
5.2 
3.3 
3.2 

3.4 
3.6 
5.5 
6.1 



5.7 
3.4 
5.7 
5.7 



3.6 
3.7 
3.9 



5.9 
6.1 

7.2 
5.7 



6.6 
6.6 
6.4 
5.9 

6.1 
6.2 



5.7 
6.2 

5.7 
5.7 

5.7 

5.9 

5.7 
5.2 



4.0 
4.5 
3.6 
4.6 
5.. 5 



5.3 
5,3 

5.9 
6.6 
5.9 
6.2 
3.0 

3.4 
5.5 
6.1 
7.4 
7.4 
7.2 



7.0 
2-2 
5.0 

7.0 
7.0 
7.0 
8,0 



2.4 
3.3 
3.8 

5.2 
2.8 
1-3 
3.8 



4.4 
4.4 
2,3 
2.1 

2.0 
2.0 
3.0 
2.8 
2.5 
2.6 



3.9 
3.4 
3.9 



3.9 
4.0 
3.9 
4.0 

4.0 
2.6 
5.2 
11 
5.5 

2.4 

2.4 
3.0 

2.8 
2.2 

3.6 
3.3 
4.0 
3.2 
4.0 

14 
16. 5 
10.5 
7.2 
5.9 
5.9 



1.9 
1.2 
1.7 
1.8 
3.6 

3.0 
3.3 
3.8 
3.9 
3.9 

3.4 
3.6 
3.4 
3.3 

3.8 

3.4 
3.4 
2^.8 
2.1 
2.0 

2.0 
3.2 
2.3 



2.3 
2.2 



5.9 
5.0 

10 

11.5 

19 

23 
22 
22 
23 
24 



12.5 
20 



23 
19.5 



22.0 
19.5 



2.2 
2.1 
2.1 
2.1 
3.2 



4.0 

5.7 
4.6 



4.5 
4.4 
4.5 
4.5 

4.5 
4.6 
4.6 
4.8 
5.0 

4.5 
3.3 
3:. 3 
3.3 
3.2 

2.9 
5.0 
6.4 



12.5 
10 
9.3 

8.8 
8.2 



18 

6.1 
20 
20 
22 

2.9 

20 
22 
23 
21 
21 

22 
22 
22 
22 
22 
22 



Apr. 



7.4 
5.5 
5.2 
5.5 
5.5 

5.7 
5.5 
5.5 
5.9 
6.2 



5.2 
5.5 
5.2 
2.9 



2.7 

2.8 
2.8 

2.6 
3.3 
4.0 



4.0 
4.0 
4.0 

4.8 
5.7 



19 
20 
20 

17.5 



19.5 
20 
21 
19 

17.5 
15.5 
13 
11 
9.3 

8.6 
6.6 

11.5 

13 

13 

12 

12.5 

12.5 

15.5 

11.5 



May. 



5.9 
6.2 
6.2 
6.4 
5.9 



6.1 
5.9 
7.6 
5.5 



11.5 
11 



13.5 
15 

13 
12 
9.3 



5.2 
&.2 
5.2 
5.2 
5.0 

5.0 
5.2 
5.0 
5.2 
5.2 

5.5 
5.7 
5.7 

7.2 
13 



5.2 
4.0 
6.4 
7.2 



7.6 
7.4 
5.3 



5.3 
4.0 
3.4 
3.6 
6.2 

4.6 
5,0 



6.4 
7.6 
6.2 
7.0 
7.6 



July. 



8.0 
9.5 
9.3 
8.0 

7.6 

6.3 
5.9 
8.4 
9.3 
9.1 



10 
9.3 



9.3 
10 
10 

.0 



8.4 
7.6 
8.0 
8.0 
8.0 



Note.— No water in flume Oct. 31, 1913, to Jan. 25, 1914. Discharge interpolated Apr. 17, May 1 and 11, 
1914, as water-stage register was not in operation. Daily discharge Sept. 29-30, 1914, estimated. Oct. 1 
and 2, 1914, discharge estimated. No record Nov. 19 to Dec. 23, 1914; Feb. 1 to Mar. 13, 1916; and July 31, 
1917— probably no water in flume. Gage not read Aug. 9, 1918— discharge interpolated. 



SA'N DIEGO RIVER BASKST. 107 

Monthhj discharge of Cuyamaca Water Co.' s flume near Lakeside, Calif ., for 1907-1918. 



Discharge in second- 



Maxi- Mini- 



12.2 
6.8 
5.7 
11.1 
16.1 
16. 1 
11.1 
14.0 
10.3 



9.2 
7.0 
9.2 
11.6 
13.4 
5.0 
11.4 
12.5 
8.2 
8.7 
9,2 
9.7 



8.0 
6.3 
5.5 

15 

13 
7.1 

13 

13 



6.9 

7.8 
9.2 
14.2 
12.5 
9.9 
9.7 
9.0 
10.7 



12.0 
7.6 
7.8 
10.4 
13. 1 
11.4 
15.6 
11. 7 
8.3 
8.5 
9.0 



2.3 

5.9 



.0 
.0 
2.2 
.0 
1.8 
4.6 
5.7 
5.9 
4.3 



4.6 

2.6 
.3 
.6 
.0 
.0 

2.5 
11 
.7 

1.1 
.0 

5.2 



6.0 
6.0 



4.62 
2.97 
3.31 
7.79 
11.58 
9.44 
9.76 
8.91 
9.20 



6.63 
3.16 

2.79 
6.38 
6.02 
3.58 
9.27 
9.29 
6.94 
7.95 
7.20 
7.50 



1.39 



6/76 
5.22 
2:65 
6.47 
3.26 
2.28 
9.00 
12.4 
7.59 
7.11 
6.89 
7.35 



1.0 
.0 

2.5 
.0 
.0 
.0 
.0 



4.57 
7.79 
2.63 
1.71 
4.57 
8.14 
9. 22 
8.30 
7.77 
7.80 
8.50 



6.43 



Run-off 
(total in 
acre- 
feet). 



7.27 
4. 83 
4.< 
6.60 
9.58 
5.62 
11.0 
8.25 
3.98 
3.47 
5.19 
3.05 



165 
204 

464 
712 
562 
600 
548 
547 



188 
172 
392 



552 
571 
413 

489 



4,620 



416 
311 
163 
398 
181 
140 
536 
762 
452 
437 



362 

272 
479 
162 
95 
281 



447 
287 
307 
406 
532 
346 
655 
507 
237 
213 
319 
181 



1911-12. 

October 

November. . . . 

December 

January , 

February 

March 

April 

May 

June 

July 

August 

September... 



The year . 



1912-13. 
October 

November. - - 
December... 
.January. .. . - 
February..-. 

March 

April 

May 

June - . 

July. 

August . . 

September . . . 



The year . 



L913-14. 

October 

November. - - 
December . . . 
Jamiary ....- 

February 

March . -" 

April.. 

May. 

June - . 

July. 

August . . 

September... 



The year . . . 

1914-15. 

October - . ■ 

November 

December...-. 

January 

February.. 

March 

April.. 

May. 

June. 

July. 

August 

September 



The year . 
1915-16. 

October 

November. - . - 

December 

January ...... 

FebruaVy..-.. 
March 14r-31.. 

April - 

May 

Jmie 

July. 

August 

September... 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



.0 
3.0 
3.0 
1.8 
14.7 
16.1 
15.6 
14.2 
10.2 
8.7 
4.4 



16.1 



11 
3.3 
3.1 

7.5 
8.7 

14 

16 
7.5 
7.3 
6.6 
3.6 
3.0 



2.0 
.0 
.0 

4.0 
15.4 
IS.I 
18. 7 
16.9 

8.1 

6.8 



6.3 
5.0 
4.6 



8.5 
11.5 
10 



24 
24 

22.5 
17 

14.5 
14.5 



0.0 
.0 
.0 



.2 
2.0 

!o 

2.1 
2.5 

5.2 

1.8 
2.8 
2.6 

1.8 



.0 
.0 
.9 
14.6 
6.6 
6.6 
.0 
.0 
3.3 
2.8 



8.1 
5.2 
8.5 
7.5 
4.9 
1.4 



3.5 

3.0 

1.4 

.0 

1.5 
5.5 

19 

13.5 
6.0 
5.3 
3.9 



Run-off 
(total in 
acre- 
feet). 



0.08 

.0 

.13 

.78 

1.06 

10.8 

13.1 

12.0 

9.47 

7.65 

5.54 

2.73 



5.29 



3.81 
2 47 
2 29 
3.97 
4.89 
9.49 
10.1 
3.47 
4.86 
4.80 
2.62 
1.89 



16.5 

14.9 

^11.7 

3.18 

3.56 
4.59 

3.88 



5.71 



2.32 
1.81 
.99 
5.68 
11.4 
18.0 
16.8 
12.7 
12. 5 
10.1 
7.61 
6.31 

8.84 



6.35 
4.71 
4.74 
3.16 

'"4." 27' 
18.9 
22.3 
18.8 
10.2 
7.46 
8.72 



108 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Monthly discharge of Cuyamaca Water Co.^sjlume near Lakeside, Calif., for 1907-1918- 

Continued. 



1916-17. 

October 

November 

December . . . - - 

January 

February. . 

March 

April 

May. 

June 

July. 

August 

September 

The year . . 



Discharge in second- 


i 




feet. 




Run-ofl 

(totalin 

acre- 








Maxi- 


Mini- 


Mean. 


feet). 










13.5 


2.6 


5.24 


322 


7.2 


5.5 


6.17 


367 


7.4 


3.0 


5.51 


339 


8.8 


1.3 


4.61 


283 


3.9 


1.7 


2.79 


155 


9.9 


2.1 


4.55 


280 


7.4 


1.9 


4.55 


271 


7.6 


5.3 


6.33 


389 


13.5 


4.0 


6.64 


395 


11 


.0 


8.24 


507 


11 


5.0 


6.83 


420 


6.3 


4.3 


5.57 


331 


13.5 


.0 


5.61 


4,060 



1917-18. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September... 

The year. 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



23 

22 



25 



3.0 
3.2 
.0 
2.2 
5.0 
2.9 
6.6 
6.4 
3.4 
5.3 
7.0 
4.0 



8.82 



Run-oflE 
(totalin 
acre- 
feet). 



303 
318 
115 
314 
1,100 
1,050 
964 
584 
345 
435 
503 
355 



6,390 



SOTTTH FORK OF SAN DIEGO RIVER NEAR ALPINE, CALIF. 

Location. — In NE. ^sec. 10, T. 15 S., R. 2 E., in Capitan Grande Indian Reservation, 

about half a mile above junction with San Diego River, and 4 miles north of Alpine, 

San Diego County. 
Drainage area. — 44.5 square miles (measured on topographic maps). 
Elevation. — About 800 feet above sea level. 
Records available. — January 1, 1913, to September 30, 1915. 
Gage. — Sanders & Rising "water-stage recorder on left bank about 100 feet below 

intake of South Fork flume. Vertical staff, fastened to outside of gage Well, was 

read during practically the entire year 1914-15, as water-stage recorder was not 

operating satisfactorily. 
Discharge measurements. — Made by wading or from bridge 1,500 feet below gage. 
Channel and control. — Solid rock and gravel ; rough; permanent. 
Extremes of discharge. — 1913-1915: Maximum stage recorded, 5.0 feet during 

morning of February 11, 1915 (discharge, 242 second-feet); no flow during several 

months each year. 
Diversions. — South Fork flume, which heads above the station, diverts water into 

Cuyamaca Water Co.'s flume. 
Regulation. — None. 
Accuracy. — Stage-discharge relation practically permanent. Rating curves fairly 

well defined. Water-stage recorder in operation only part of time; for such 

periods mean daily gage heights were determined by inspecting recorder graph; 

staff gage usually read once daily when water-stage recorder was not in operation. 

Daily discharge ascertained by applying mean daily gage height to rating table ; 

discharge for periods when gage-height record was not obtained, estimated by 

comparison with records of flow at adjacent stations. Records fair. 



Discharge measurements of South Fork of San Diego River near Alpi 

1914-15. 


ne, Calif , for 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1914. 
Jan. 27 


F.C.Rbert 


Feet. 
3.80 
2.10 


Sec.-ft. 
129 
25 


1915. 

Feb. 3 

6 

Mar. 18 

25 


r.C. Ebert 


Feet. 

2.30 

.7 


Sec.-ft. 
a 38 


28 


do 


do 

R. W. Day 


6 1 
t) 




do 
















o Made by wading 2,000 feet below gage. 



SAN DIEGO RIVER BASIN. 



109 



Daily discharge, in second-feet, of South Fork of San Diego River near Alpine, Calif, for 

1912-1915. 



Day. 


Feb. 


Mar. 


Sept. 


Day. 


i^eb. 


Mar. 


Sept. 


Day. 


Feb. 


Mar. 


Sept. 


1912-13. 
1. 




0.05 




1912-13. 
11 










1912-13. 
21 


■ 






2 




12. . . 








22.. 


10 

.1 



.2 
.5 
.3 






3 








13 






30 




23 






4 








14 






5.8 


24 






5. 








15. . . . 










25 














16 








26 






7 








17.. 








27 . ... 






8 








IS 








28 






9. . 








19 









29 






10. 








20.. 








30 


























31 




















Day. 


Jan. 


Feb. 


Apr. 


May. 


June. 


Day. 


Jan. 


Feb. 


Apr. 


May. 


June. 


1913-14. 
1 








26 

14 
5.2 
6.0 
1.3 

1.3 
.6 
.5 




16 
17 
18 
19 
20 

21 
22 
23 
24 
25 

26 
27 
28 
29 
30 
31 


1913-14. 


.3 
.3 
.3 
.1 










2 




















3 




















4 












42 
98 

217 
130 

60 

20 

15 

10 
5 
2.5 








5 


















6 






0.7 
1.0 

.7 
.7 
.5 

.4 
.3 
.05 


0.05 




.05 
.1 
.05 
.05 








7 






.05 




.7 
8.5 
16 
2 

3 
3 ^ 

2*' 
16 






8 


:::::::::::: 












9 














10 


0.05 
.05 














11 








14 
54 
39 

6.8 
.6 

4.5 






12 


.05 










13 














14 
















15 


.05 

















































Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jime. 


1914-15. 
1 




15 
40 
35 
5 

.7 

.5 
.5 
.5 
.5 

4.4 

217 
75 
50 
40 
25 


105 
113 

71 

39 

24 

21 
24 

7.5 
.5 
6 

3.5 
4.5 
3.5 
2.5 
2.5 


'"6." 7" 


44 
25 
9.5 
24 
146 

71 
39 
18 
14 
9.5 

3.5 
1.5 
.5 
.2 
1.5 


0.1 


1914-15. 
16 




30 
40 
35 
20 
24 

44 
24 
24 
20 
16 

12 
11 
10 


1.5 




0.8 
.2 
3.5 

.4 
.2 


1 


2 




17 . 






3 




18 










4 




19 . 










5 




20 










6 




21 


0.1 
.5 








7 




22 










8 




23 


.4 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 
.5 


9.5 
14 
5 

.5 






9 




24 








10 




25 








11 




26 




.1 




12 




27 






13 




28 


.1 

20 
146 
24 








14 




29. . . 








15.... 




30 


44 










31.. 

















Note.— Discharge determined from fairly well-defined rating curve. 

Discharge Jan. 19 and 20, 1914, estimated. No gage-height record Feb. 22-27, 1914; discharge estimated 
by comparison with record, of flow on San Diego River and from precipitation records. 

No gage-height record Jan. 20, Feb. 1 and 2, 4, 6-9, 12-19, 24 and 25^ 27 and 28, Mar. 26-29, Apr. 25, May 
2, 16, 20, 1915; discharge estimated. Stream dry on days for which discharge is not given. 



110 SURFACE WATEE OF PACIFIC SLOPE^ SOUTHEEl^ CALIFORJSTIA. 

Monthly discharge of South Fork of San Diego Hirer near Alpine, Calif ., for 1913-1915. 



Month. 


Discharge in second- 
feet. 


Run-off 

(total iji 

acre- 

I'eet). 


Month. 


Discharge in second- 
feet. 


Run-off 
(total 


Maxi- 
mum. 


Mini- 
raum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1913-14. 


54 
217 

16 
26 
.05 



& 






3.88 
21.4 


1.88 
1.77 
.003 


139 

1,190 



112 

109 

.2 


1914-15. 


146 
217 
113 
44 
146 
.1 



.5 




a 


6.15 
29.3 
14.1 

2.46 

13.3 

.05 


37S 


February 

March 


February 

March 


1,630 

887 


April 


April.. . . 


146 


May. 


May . 


81S 


.Tnnfl... 




3 




The year- . . 




The year... 


217 





2.41 


1,650 


217 





5. .30 


3,840 



Note. — ^No flow in months for which discharge is not shown. Records represent full 5-ear. 

SOXJTH FORK OF CTTSrAMACA WATER CO.'S FLITME 1 FEAR ALPINE, CALIF. 

Location.— In NE. I sec. 10, T. 15 S., R. 2 E,, in Capitan Grande Indian Reservation, 
100 feet below diversion dam, half a mile above mouth of South Fork of San 
Diego River, and 4 miles north of Alpine, San Diego County. 

Records available. — January 10, 1913, to September 30, 1915. 

Gage. — Sanders & Rising water-stage recorder on left side of flume 100 feet below 
intake. Vertical staff fastened to flume at same site is occasionally read. 

Discharge measurements. — Made from foot plank across Hume at gage. 

Channel and control. — As gage is only a short distance above wasteway, the velocity 
depends largely on the position of the gate. 

Extremes of discharge. — 1913-1915: Maximum mean daily discharge of flume, 28 
second-feet May 10 and 11, 1915. 

Accuracy. — Stage-discharge relation not permanent owing to changes in opening 
of wasteway. Sufficient discharge measurements were obtained to define these 
changes. Mean daily gage heights determined by inspecting recorder graph. 
Daily discharge ascertained by applying mean daily gage height to rating tables 
covering short periods and by shifting- control method. Records fair. 
South Fork flume is a feeder for Cuyamaca Water Co.'s flume. When the water is 

not needed it is wasted into South Fork of San Diego River a short distance below 

gage in flume. 

Discharge measurements of South Fork of Cuyamaca Water Co .' s flum.e near Alpine, Calif., 

for 1913-1916. 



Made by— 



Gage 


Dis- 


Date. 


height. 


charge. 


Feet. 


Sec. -ft. 


1915. 


0.16 


0.8 


Mar. 25 


.22 


1.0 


31 


.17 


.4 


Apr. 7 


.85 


12 


14 


.50 


5.5 


22 


.19 


.4 


28 
May 5 


.60 


7.9 


12 


.40 


2.8 


19 

26 


1.20 


8.7 


June 2 


.65 


7.6 


9 


.89 


8.6 


16 


.70 


10.2 


23 


.97 


9.7 


30 


.78 


12.1 


July 10 


.18 


23 


1916. 


1.10 


15.8 


Deo. 12 



Made by- 



Gage 
height. 



Dis- 
charge. 



1913. 
Jan. 11 
16 
Feb. 16 
26 
Mar. 15 
May 13 

1914. 

Jan. 27 

28 

1915. 

Feb. 3 

6 

7 

18 
25 
Mar. 4 
11 
18 



W. S. Post.. 

do 

F.G.Ebert. 
E. W.Case.. 
F.G.Ebert. 
do 



F.G.Ebert. 



D. A. McClung-. 

F.G.Ebert 

do.. 



R. W.Day 

F.C. Ebert 

R. W. Day 

do 

...-do 

Day and MoGlmig 

McGlmigand Harritt.. 



..do.- 
..do.. 
..do.. 



R. W. Day.- 

do 

do 

do 

do 



do 

do 

do 

D.G.McGlung.. 

F.G.Ebert 



F. G. Ebert. 



Feet. 
0.60 
.73 
.60 
.80 
.56 
.98 
.45 
1.50 
1.43 
1.15 



Sec.^t. 

8.1 



10.4 
12.9 
i6.2 
24 

27 
23 
17.7 
14.7 
10.2 
8.3 
6.0 
3.6 
2.6 

4.4 



1 Previously called South Fork of San Diego flume. 



SAN DIEGO EIVEB BASII^r. 



Ill 



Daily discharge, in second-feet, of South Fork of Cuyamaca Water Co.'' s flume near Alpine, 
Calif, for 1913-1915. 



Bay. 


Oct.. 


Nov. 


Dec. 


.Tail. 


Feb, 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1913. 
1 








0.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
3.7 

.2 
.2 
.1 
.1 
.5 

.9 
.8 
.4 
.4 
.3 

.2 
.2 
.2 
.2 
.2 

.2 

'.2 
.2 

'.2 

.01 
.01 
.01 
.01 
.01 

.01 
.01 
.01 
.01 
.06 

.06 
.06 
.04 
.03 
.02 

.01 
.00 
.02 
.04 
.00 

.00 
.00 
.00 

:o8 

10. 5 

26 
3.7 
9.2 
4.6 
3.7 


0.2 
.2 
.2 
.2 
.2 

.3 

.3 
.3 

.4 
.4 

.4 
.3 
.3 
.3 
.3 

.3 
.3 
.3 
.3 

.4 

3.7 

19 
8.6 
4.0 

14 

12.*5 

15 

13 

1.6 
1.3 
1.1 
l.f> 
1.0 

1.0 

.8 
.6 
.6 
.6 

.6 
.4 
.2 
.08 
.08 

.08 
.08 

08 

1 

15 

2.1 
5.1 
5.1 
3.4 
.4 

.6 
3.0 

3.7 


11.5 
6.8 
5.8 
6.6 
8.2 

7.3 

5.8 
5.5 
5.3 

4.8 

4,4 
13 

7.3 
12 

5.1 

4.2 
5.5 

5.8 
5.8 
6.0 

11 

13.5 
10.5 
8.8 
7.3 

16.5 

18.5 

16 
9.4 
9.9 

18 

4.4 
4.0 
3.9 
3.9 
3.9 

3.9 
3.9 
3.3 
2.7 
2.1 

2.1 
2.1 
2.0 
1.8 
1.8 

l.S 

1.8 

1.8 
1.8 
1.8 

1.4 
1.0 
1.0 
.9 
.9 

.03 
.03 
.00 
1,0 
l.O 
1.0 


18 

16.5 

13.5 

8.4 
5.6 

5.0 
3.7 
4.6 
3.4 
3.9 

6.4 
7.0 
9.2 
9.6 
5.1 

3.4 
3.6 
4.4 
4.0 
3.2 

2.8 
2.4 
1.8 
1.5 
1.0 

.9 
.9 
.9 
.9 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1,0 
1.0 

.9 
.9 
.6 
.5 

.4 

.4 
.4 
.4 
.6 
1.0 

1.2 
1.0 

.8 
.5 
.4 


0.9 
.8 
.9 
.6 
.6 

'.5 

' .5 
.5 

.5 
.5 
.5 

.4 
.4 

.3 

:1 

.3 
.3 

.3 
.3 
.3 
.3 
.3 

.3 
.3 
.3 
.3 
.3 
.3 

.8 
.6 
.8 
.8 
.6 

.6 
.6 
.6 
1.0 
1.0 

1.0 
.9 
.9 
1.2 
1.5 

1,5 
1.4 
1.0 

.8 
.5 

.4 
.4 
.2 
.3 
.5 

.5 
.5 
.5 
.5 
.2 
.2 


0.4 
.4 
.5 
.4 
.3 

.2 
.1 
.1 

;i 

.1 
.1 

.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 

.0 






0.0 


2 












.0 


3 












.0 


4 












.0 


5 












.0 


6 












.0 


7 


_ ____ 








.0 


8:::: ■;:::■;:::: :::::; 








.0 


9 








.0 


10 













11 










.0 


12 










.0 


13 . 











5 5 


14 




j 






2 


15 










Q 


16 




1 






.0 


17 













1^ 




i 









19 















20 















21 















22 












Q 


23 















24 












n 


25 












.0 


26 












Q 


27 















28 















29 















30 . 















31 














1913-14. 
1 




0.0 
.0 
.0 
.0 
.0 

.0 
.0 

.0 
.0 

.0 
.0 
3,7 
.2 
.2 

.2 
.2 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 


0.00 
.00 
.00 
.0^ 
.00 

.01 
.01 
.01 
,01 
.01 

.01 
.01 
.01 
.01 
.01 

.01 
.01 
.01 
.01 
.01 

.01 
.01 
.01 
.01 
.01 

.01 
.01 
.01 
.01 
.01 
.01 


.15 
.08 
.08 
.06 
.06 

06 








2 










3 










4.. 






5 
























.15 
.2 
.2 
.15 

.08 
.04 
.03 
.00 
.00 

.00 
.00 

.00 
.00 
.00 

.00 
.00 
.00 
.00 
.00 

.00 
.00 
.00 
.00 
00 








S 






9 










10 










11 








• 


12 


























lb;:;::::::::::: 






























18 










19 










20 










21 










22.,, 










23 










24 










25 






























28 










29 




















31 











112 SURFACE WATER OF PACIFIC SLOPE, SOUTHERlI^r CALIFORNIA. 

Daily discharge, in secorhd-feet, of South Fork of Cuyamaca Water Co.^s flume near 
Alpine, Calif, for 1912-1915— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1914-15. 
1 . 








0.00 
.00 
.00 
.00 
.00 

.01 
.01 
.01 
.01 
.01 

.03 
.05 
.05 
.05 
.05 

.m 

.05 
.05 
.00 
.00 

1.0 
3.7 
.6 
.4 
.4 

.2 
1. S 
1.9 
2.0 
2.1 
15 


16 
18 

19.5 
15 

8.9 
8.4 
6.4 
6.8 

8.4 

16 
15 
14 
13 
12 

11 
10 
10 
12 

15 

12.5 

18 

14 
10 

19.5 

16 

13 


14 

12.5 

15.5 

14.5 

20 

20 
21 
22 
23 
23 

22 
23 
25 
19 
13 

13.5 

16 

14 

12.5 

11.5 

12 
13 

13.5 
12 

8.7 

9.0 
8.8 
9.2 

10 

10 
9.8 


10.5 

10 

10,5 
8.0 
8.1 

8.2 
8.4 
7.2 
7.0 
6.8 

6.4 
6.0 
5.6 
6.7 
10.5 

10.5 

10 

11 

12 

13 

13 
13 

17 
16 
15 

16.5 

16.5 

16 

21 

22 


16 
19 
20 

24 
24 

25 
26 

27 
27 
28 

28 
27 
27 
24 
24 

24 
22 

22 
24 
21 

19 
18 
17.5 

17 
17.5 

17.5 

17 

16 

15 

15 

14.5 


15 
15 
14 
14 
13.5 

13 

12 

10.5 
9.5 
9.6 

9.8 
9.1 

8.9 

8.8 
S.6 

7.9 
7.4 
6.8 
6.6 
6.2 

5.9 
5.7 
5.6 
5.6 
5.0 

4.6 
4.0 
3.5 
3.4 
3.4 


3.8 
3.6 
3.7 
3.5 
3.4 

3.3 
3.0 

2.7 
2.3 

1.3 
.5 
.5 

.5 
.4 

.4 
.3 
.3 
.2 
.2 

.2 
.2 
.2 
.3 
.4 

.5 
.4 
.3 
.3 
.3 
.3 


0.3 
.3 
.3 
.3 
.2 

.2 
.2 
.1 
.1 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.2 
.1 
.0 
.0 
.0 




2 










3 










4... 










5 










6 










7 










8... . 






• 


. . - 


9 










10 










11 










12 










13 










14 










15 










16... 










17. . . 










IS 










19 










20 










21 ... 










22 






".' " 




23 










24 . . 










25 










26 










27 










2« 










29 










30 










31 





















NoTK.— No cage-height record .Tan. 12 and 15, May 18-23, 25-30, .Time 1 and. 2, 4-6, 8-10, 12 and 13, 1913; 
Dec. 14, 1913, to Jan. 9, 1914, and Feb. 1-6, 1914; .Tan. 4 and 5, 11, 13, 15, 17, 20, and 21, 28, and 29, Feb. 1 
and 2, 3, 12-17, 19, 24, 27, May 23 and 30, 1915; discharge estimated. Daily discharge for 1913 and 1914 
computed from fairly well defined rating cnr-ves; for 1915, from fairly well defined rating curves covering 
short periods and by shifting-control method. Flume dry on days for which discharge is not given. 

Monthly discharge of South Fork of Cuyamaca Water Co.' s flume at Alpine, Calif, 
for 1913-1915. 



1913. 
January 10-31. . 

February 

March 

April 

May 

June 



The period. 

1913-14- 

November 

December 

January 

February 

March 

April 



Discharge in second- 




feet. 




Run-off 
(total in 








acre- 


Maxi- 


Mini- 




feet). 


mum. 


mum. 






3.7 


0.01 


0.45 


20 


19 


.2 


3.42 


190 


18.5 


4.2 


8.91 


548 


18 


.9 


5.09 


303 


.9 


.3 


.43 


26 


.5 


.0 


.09 


5 


5.5 


.0 


.19 


11 








1,100 


3.7 


.0 


0.15 


9 


.01 


.0 


.008 


.5 


26 


.0 


1.89 


116 


5.1 


.08 


1.24 


69 


4.4 


.0 


2.03 


125 


1.2 


.4 


.86 


49 



1913-14. 

May 

June 

The year 

1914-15. 

January 

February 

March 

April 

May 

June 

July 

August 

The year.. 



Discharge in second- 
feet. 



15 
19.5 
25 
22 
28 
15 
3.8 
.3 



0.2 
.0 



.0 
6.4 
8.7 
5.6 
14.5 
3.4 
.2 
.0 



0.72 
.045 



.953 
13.0 
15.2 
11.4 
21.4 
8.43 
1.27 
.07 



Run-ofl 
(total in 



feet). 



722 
935 
678 
1,320 
502 
78 
4 



4,300 



Note. — Flume dry in months in which discharge is not given. 



SAN DIEGO EIVEE BASIN. 



113 



SAN VICENTE CREEK AT FOSTER, CALIF. 

Location. — In sec. 31, T. 14 S., R. 1. E., at old diversion dam three-eighths of a 
mile above Foster, San Diego County. 

Drainage area. — 74. 9 square miles (measured on topographic maps). 

Elevation. — About 500 feet above sea level. 

Records available. — February 2, 1914, to May 22, 1917 (discharge measurements). 
Daily discharge January 29 to April 4, 1915. 

Gage. — ^Vertical staff in two sections fastened to solid rock on right bank about 25 
feet above dam. 

Discharge measurements. — Made from footbridge at Foster or by wading near gage. 

Channel and control. — Sand, gravel, and rock. The concrete dam which formed 
the control was destroyed by flood of January, 1916. 

Extremes of discharge. — 1915: Maximum stage reported, 6.5 feet February 11 
(discharge, 1,190 second-feet); no flow for several months during the year. Maxi- 
mum discharge, flood of 1916, occurred January 27 (discharge, 18,600 second-feet). 
See Water-Supply Paper 426, p. 55. 

Diversions. — None. 

Regulation. — None. 

Accuracy. — Stage-discharge relation permanent during 1915. Rating curve well 
defined. Gage read to hundredths twice daily. Daily discharge ascertained 
by applying mean daily gage height to rating table. Records good for periods 
covered by gage-height record. 

Discharge measurements of San Vicente Creek at Foster, Calif., for 1914-1917. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1914. 
Feb 2 


F. C. Ebert 


Feet. 


Sec.-ft. 

1.8 
12 

3.5 
a. 2 

148 

66 

37 
&723 
6 237 

98 

50 

27 
6 102 

90 

72 

66 

28 

15 

15 

16 

13 

11 

13 


1915. 
Apr. 5 
9 

May 17 

June 1 

Dec. 9 

21 

1916. 
Mar. 15 
Apr. 15 
May 8 
June 10 
July 17 

1917. 
Jan. 22 
Feb. 14 

19 
Mar. 12 

28 
Apr. 18 

19 
May 22 


Lee and Sleppy 

R.W.Day.... 


Feet. 
2.58 
2.52 

2.80 
2.41 


Sec.-ft. 
10 


Mar. 4 


do 

do 

do 




7.8 


Apr. 23 
May 12 


F.C. Ebert 


28 


F. C. Ebert 


3.71 
3.39 
3.23 
5.35 
4.00 
3.49 


D. L. Lee 


5.6 


1915 


F. C. Ebert 


05 


Jan. 29 


H. D. McGlashan 




.05 


31 

Feb. 1 

2 


do 

do 

.... do 


McGIashan and Ebert 




33 


3 


K. B. Sleppy 


F. C. Ebert. 




16 


4 
5 


F.C. Ebert ,. 

do 


do 

do 




5.5 
.4 


8 


do 




Ellis and Ebert 




.05 


25 
Mar. 5 


D. L. Lee 

F.C. Ebert 


3.46 
3.44 
3.35 
3.30 
3.00 
2.78 
2.73 
2.80 
2.76 
2.63 
2.60 


F. C. Ebert 






6 


Ebert and Keenan 

F. C. Ebert 


25 


8 


do 

do 

do 

do 

McGlashan and Ebert.. 




2.4 


19 


R.W.Day 


26 


26 
27 


do 

F. C. Ebert ... . 


15 
4.2 


29 


do 


15 


30 


R. W. Day 


do 

F. C. Ebert 




10 


Apr. 2 


R.W.Day 


1.4 


W. E. Keenan 















a Estimated. 

6 Made from footbridge 2,000 feet below gage; all other measurements made by wading near gage. 

142131°— 21'—wsp 447 8 



114 ■ SUEFACE WATER OF PACII'lC SLOPE^ SOUTHEEIT CALIFORJ^IA. 
Daily discharge, in second-feet, of San Vicente Creelc at Foster, Calif,, for 1915. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


1 




37 
723 
237 
98 
50 

40 
30 

27 
20 
438 

783 
332 
115 
89 
90 


135 

■ 178 
102 
90 
78 
• 71 
67 
61 
54 
62 

60 
49 
44 
39 
35 


12 
11 
10 
10 


16 




92 

94 
81 
74 
96 

89 
78 
69 
62 
104 
.84 
64 
64 


33 
30 
28 

25 
22 

20 
20 
19 
19 
16 
16 
15 
20 
18 
16 
14 




2 




17. 






3 




18 






4 . . . 




19 






5 




20 






6 - .-. 




21 






7 




22 







8 




23 






9 




24 






10...... 




25 


. 




11 




26 






12 




27 






13 




28 






14 




29 


148 
500 
66 




15. ,, 




30 








31 















Note. — Water began flomng between 11 and 12 o'cloclc on night of Jan. 28, 1915. No gage-height 
record Jan. 29 to Feb. 9; Feb. 15 and 16, 26; Mar. 18 and 19, 25, 27, 31, Apr. 3; no observations after April 
4. Daily discharge Jan. 29 to Feb. 9 estimated from discharge measurements and by comparison with 
record of flow of San Diego River at Lakeside. For other periods for which gage heights are missmg dis- 
charge was interpolated or estimated by comparison with record of flow at Lakeside. 

Monthly discharge of San Vicente Creek at Foster, Calif., for 1915. 





Month. 


Discharge in second-feet. 


Run-off 
(total in 
acre-feet). 




Maximum. 


Minimum. 


Mean. 


February 


783 
178 


20 
14 


149 
47 


8,280 




2,890 








The period 


783 


14 


88 


11,200 





MISGELIiANEOirS MEASUBEMENTS. 

The following miscellaneous measurements have been made in the 
San Diego River basin: 

Miscellaneous discharge measurements in San Diego River drainage hasin. 



Date. 


Stream. 


Locality. 


hdght. 


Dis- 
charge. 


Mar 7 1918 


San Diego River 

.....do 


1 mile above diverting dam and one-eighth 

mile belov/ Cedar Creek. 
Just above mouth of Boulder Creek, 13 miles 

northeast of Lakeside, NE. \ NE. J sec. 11, 

T. 14S., R.2E. 
.... do.... 


Feet. 


Sec.-ft. 

7.8 


Dec 16, 1912 




1.1 


Feb. 16,1913 


do 




2.4 


Mar 16 1913 


.do ... 


do .... 




15 


Mav 13,1913 


do 

do 


do 




2.4 


Apr. 20,1914 

May 13,1914 
Apr. 7, 1915 
July 10,1915 
Nov 23 1905 


One-fourth mile above mouth of Boulder 
Creek, 
do 




4.4 


do 




7.3 


do.. 






22 


do .... 


do . 




6.6 


do 






1.9 


May l' 1912 
Mar 17 1915 


do 


DivertiQg dam just below junction of Boulder 

Creek, NE. JNE. \ sec. 11, T. 14 S., R. 2 E. 

do 




22 


do . 




41 


Mar. 24,1915 


do.. 


.. . do.: 




26 


Mar. 31,1915 


do 


do . 




23 


Apr. 7, 1915 
]\Iar. 31 1915 


. . do. ... 


do 




9 


.....do 

do 


Capitan Grande dam site, three-eighths mile 
below mouth of Chocolate Creek, and about 
5 miles northeast of Lakeside, 
do . . 




52 


Apr. 2, 1915 
Apr. 14,1915 
Mky 1,1912 
May 4, 1912 
May 20,1912 




33 


do 


do 




20 


-do 






39 


do 


do . 




34 


do 


.....do 




25 



SAN DIEGO RIVER BlSIN. 

Miscellaneous discharge measurements in San Diego River drainage 



115 

-Continued. 



Date. 


Stream. 


Locality. 


Gage 
height. 


Dis- 
charge. 


May 25,1912 
June 6, 1912 


San Diego River 

do 


About 2^- miles east of San Diego 


Feet. 


Sec.-ft. 
13 


do 




a 1 


Aug. 18.1912 
Nov 7' 1917 


. . do 


do 







Boulder Creek 

. . do 


Mouth .... 


0.56 
.36 
.80 
.43 


5.6 

1.8 
19 


Nov 9^ 1917 


do.. 


Feb 8 1918 


. do 


do 


Mar l' 1918 


do 


do 


Apr. 2,' 1913 
Feb. 16,1917 


Cuvamaca Water Co. 's 

flurae. 
do... 


Sand Creek crossing, in NE. i sec. 22, T. 14 

S., R. 2E. 
South Fork of San Diego River 


40 




3 2 


Nov. 9,1917 
Nov 10 1917 


. do 


. do - - 


.54 
.81 
1.52 
L37 
.60 

.50 
.25 

.29 
.90 
.90 
1.12 
1.20 
1.20 
1.30 
.62 
.84 
1.08 
.56 
.96 
1.51 


3.5 
8.5 
22 


do. . 


do 


Feb. 8, 1918 


... do . . . 


.. . do 


Apr. 14,1916 
Aug. 16,1912 

Aug. 20,1912 
Oct. 16, 1914 


do. .. 


Just below South Fork feeder 


26 


do. 

do 

do .... 


115 feet below section house. Chocolate Creek, 
about 8 miles east of Lakeside, in SW. I 
sec. S, T. 15 S., R. 2 E. 

do.. 

Cuyamaca Water Co.'s gaging station just 
below^ Chocolate siphon, 
do 


7.1 

5.1 
1 6 


Oct. 17,1914 


.. . do 


2.0 
XL 6 
12 1 


Jan. 28.1915 


do 


do 


Feb. 6' I9ir> 


do... ... 


. do 


Feb. 10, 1915 


do . 


do . 


16 8 


Mar. 31.1915 


do .. . . . . . 


. . do 


19 6 


Apr. 7', 1915 


. . do. . . 


do 


19 1 


Apr. 1^,, 1915 
Dec. 12,1916 


do 


do 


22 


do.. . . 


do 


4.6 

7 4 


Nov. 7, 1917 


do 


do 


Nov. 8, 1917 


....do 


. . do 


12 


Nov. 9, 1917 


. . do 


do 


3 6 


Nov. 10,1917 


.... do 


...do... 


9 5 


Feb. 8, 1918 


do 


do 


23 


Oct. 17,1914 


do 

do 


Above inflow from Ei Monte pump 


1 58 


Do 


Be'ov/ inflow from El Monte pump 




1 99 


Apr. 3, 1915 
Apr. 21,1916 


do, = .. 

do.. 




1.00 


16 4 


do 


20 


Feb. 15,1917 


do . 


.do 


.35 
.38 
.66 
.90 
.44 
.35 
1.26 
1.25 
.35 


1 7 


Nov. 1, 1917 


- . do 


do 


1 5 


Nov. 7,1917 


.....do 


. . do 


4 9 


Nov. 8, 1917 


. . do 


. . do 


9 3 


Nov. 9,1917 


do 


do 


2 2 


Nov. 10,1917 


.... do 


... do 


1 3 


Feb. 7,1918 


. do 


do 


20 


Feb. S, 1918 


do 


do ^. 


20 


Sept. 7,1918 


.. . do ... 


do 


1 7 


Dec. 16,1912 


South Fork of San 
Die:iO River. 

do . . 


About one-half mile above mouth, NE. \ soc. 
10, T. 15 S., R. 2E. 
do 


a 1 


May 13,1913 







Mar. 31,1915 


do 

... do 


. . 300 feet above mouth 




16 


Apr. 7, 1915 


do 






Apr. 14,1915 


do 


do 




7 4 


Apr. 14,1916 


do 

....do 


Between intake and spillway of South Fork 

flume. 
do 




18 


May 28,1916 


1.26 
.47 

.12 


9 "^ 


Feb. 16,1917 

Feb. 8, 1918 


do. 

....do 


Abandoned U. S. G. S. station, no water in 

South Fork flume. 
Month 


5.8 
03 


Mar. 7, 1918 


... do 


do 


1 


Apr. 14,1916 


South Fork fliune 

....do 


100 feet below temporary intake . . . 




15 


Dec. 12,1916 




.64 
3.70 
3.66 
3. 65 

.42 


4 4 


Nov. 7, 1917 
Nov. 8, 1917 


....do 

. . do 


Entire flow of South Fork diverted into flurD.e 
do 


1.6 
1 2 


Nov. 9,1917 


....do 


. . do 


1 1 


Feb. 8, 1918 


....do 

....do 

Chocolate Creek 

do. 


New ga^e installed . . . 


1 9 


Mar. 7, 1918 


One-fourth mile above junction with Cuya- 
maca Water Co. 's flume, 
300 f ee^^ above mouth .... . . . 


4 6 


Mar. 31,1915 




2 3 


Apr. 7, 1915 


... do...., 




1 5 


Apr. 14,1915 
May 6, 1912 


....do 


. . do 




1 2 


San Vicente Creek .... 
....do 


One-half mile above Foster 




2. 1 


Dee. 23,1917 


... do 




1 


Mar. 8, 1918 


....do 


do 




1 


Mar. 14,1918 


...do 


...do... 




77 


May 8, 1918 


....do 


. . do..... 




1 


Feb. 7, 1918 


La Mesa ditch 


Outlet near La Mesa 


L97 
1,90 

1.87 
L94 


18 1 


Do 


...do 


Intake near La Mesa 

Intake near Grossmont 


17 


Feb. 8, 1918 


...do 

....do . 


IS 


Do.. 




16 


Apr. 3, 1915 


Alvarado Creek 


600 feet above mouth. Flow includes waste 
from Cuyamaca Water Co.'s flume and 
leakage from I^a Mesa reserA^oir. 


12 



116 SURFACE WATEROF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 
SAN DIEGUITO RIVER BASIN. 
GENERAL FEATURES. 

San Dieguito River, or Santa Ysabel Creek, as it is known from 
its source to the San Pasqual Valley, rises in the Volcan Mountains 
on the western slope of the Coast Range and flows westward through 
San Pasqual Valley, below which it takes its true name, and discharges 
into the Pacific Ocean midway between Oceanside and San Diego. 
Its length is 50 miles, and the maximum width of the drainage basin 
is about 15 miles. The total drainage area is about 340 square miles. 
It lies south of San Luis Rey River and north of the San Diego River 
basin. 

Numerous small tributaries enter Santa Ysabel Creek between its 
source and San Pasqual Valley, the largest being Black Canyon and 
Temescal creeks from the north and Santa Maria Creek from the south. 
Above San Pasqual Valley the creek maintains a light flow through- 
out the year, but below that point the channel is dry during the 
summer months. 

The upper part of the basin is rough, the surface being cut by 
many canyons. The lower part in the foothills is more rolling, with 
large areas of valley and high mesa land. The basin has very little 
timber, the principal cover being brush, grass, and a few scattered 
oaks. The rocks of the region are described in the report on the 
geology and ground-waters of the western part of San Diego County 
by A. J. Ellis and C. H. Lee, published by the Survey as Water- 
Supply Paper 446. 

The mean annual rainfall ranges from 10 to 15 inches along the 
foothills and from 20 to 40 inches in the mountains. 

There is no large amount of irrigation in this basin. The East 
and West San Pasqual ditches irrigate a small area along the river 
in San Pasqual Valley. A storage reservoir site exists on the main 
stream at Pamo Valley, below the junction of Temescal Creek with 
the Santa Ysabel. 

G AGING-STATION RECORDS. 
SANTA YSABEL CREEK NEAR SANTA YSABEL, CALIF. 

Location. — In Santa Ysabel grant, at bridge on Santa Ysabel- Warner Springs road, 
1| miles north of Santa Ysabel, San Diego County. 

Drainage area. — 12.8 square miles (measured on topographic maps). 

Elevation, — About 2,950 feet above sea level. 

Records available. — August 29, 1913, to September 30, 1914. Discharge measure- 
ments only for 1914-1915. 

Gage. — Vertical staff fastened to left abutment of bridge. 

Discharge measurements. — ^Made from bridge or by wadiag. 

Channel and control. — Bedrock and boulders; fairly permanent. October 5, 
1913, a concrete control was built across the channel just below gage. 



SAN DIEGUITO EIVEK BASIN. 



117 



Extremes of discharge.— 1913-1914: Maximum stage recorded, 2.00 feet January 
27, 1914 (discharge, 84 second-feet); no flow October 1-7, 1913, and July 1 to 
September 30, 1914. 

Diversions. — A small ditch to divert water for irrigation was constructed during the 
summer of 1914 a short distance above the station. 

Regulation. — None. 

Accuracy. — Stage-discharge relation fairly permanent. Rating curves well defined 
except for flood stages. Gage read daily, except Sundays, to half-tenths. Daily 
discharge ascertained by applying gage height to rating table. Records good. 

Discharge measurements of Santa Ysabel Creeh near Santa Ysabel, Calif., for 1912-1915. 



Date. 


Made by — 


height. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1912. 

Nov. 18 


W. J. Isbell 


Feet. 
1.20 
1.28 
1.26 

.78 
.90 
.90 
.98 
.99 
.89 
.86 
.76 
.68 
.65 
.45 
.53 


Scc.-jt. 
1.5 
2 
1.5 

2.1 

r 

10 
5.2 
4.1 
3.2 
1.2 
1.1 
.8 
.4 
a.3 
.5 
.4 
.3 
.7 
.7 
1.1 
1.1 

1.4 

4.2 


1914. 

Feb. 8 

Mar. 5 

14 

17 

Apr. 3 

17 

24 

May 7 

11 

18 

June 2 

16 

Aug. 21 

1915. 

Feb. 8 

Mar. 6 

Apr. 23 

May 12 

June 2 

29 

July 10 

10 

28 

.iug. 2 

Sept. 10 


W. J. Isbell 

do 

do 

do 

do 

do 

F.C. Ebert 

W.J. Isbell 

do 

do 

do 

do 

F.C. Ebert 

W.J. Isbell 

F.C. Ebert 

W.J. Isbell 

do 

do 

do 

F.C. Ebert 

W.J. Isbell 

do 

do 

do 

do 


Feet. 
0.93 
1.02 
.96 
.94 
.93 
.88 
.95 
.94 
.93 
.91 
.85 
.83 
.57 

1.04 
1.30 
.97 
1.50 
1.15 
.89 
.82 
.84 
.76 
.76 
.72 
.82 


s«../,. 


Dec. 10 
17 


do 

F. C. Ebert 


9.3 
6.1 


1913. 
Jan 14 


W J Isbell.. 


6.8 
5.8 


31 
Feb. 18 


do 

F C. Ebert 


4.1 
7.2 


Mar. 4 


W.J. Isbell 


5.7 


Apr. 26 

May 8 

10 


do 

do 

F.C. Ebert 


5.0 
4.4 
3.1 


June 15 
23 


do 

W.J. Isbell 


1.8 
.0 


July 23 

Aug. 21 

29 

Oct. 5 


do 

do 

do 

F.C. Ebert 


14 
31 
9.3 


8 


W. J.Isbell 


.72 

!73 

.75 

.78 
.78 

.81 

.88 


55 


15 

Nov. 4 

15 

18 

Nov. 22 

1914. 


do 

do 

do 

do 

do 

W. J.Isbell 


24 
5.0 
3.1 
3.3 
1.0 
.8 
• 6 


23 


F.C. Ebert 


1.8 









Daily discharge, in secondfeet. of Santa Ysabel Creek near Santa Ysabel, Calif, for 

1913-14. 



Day. 


Aug. 


Sept. 


Day. 


Aug. 


Sept. 


Day. 


Aug. 


Sept. 


1.. 


1913. 




0.4 

.4 
.3 
.3 
.3 
.2 


11. 
12. 
13. 
14- 
15. 

16. 
17. 

18. 
19- 
20. 


1913. 




0.2 
.2 
,2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 


21. 
22. 
23- 
24. 
25. 

26. 
27. 
28. 
29. 
30. 
31. 


1913. 




0.2 


2 












.2 


3 












.3 


4 












.4 


5 












.4 


6 












.5 


7 












.5 


8 












.5 


9 










0.3 
.3 
.3 


.5 


10 










.5 























118 SURFACE WATEE OF PACIFIC SLOPE, SOUTHEillJf CALIFORNIA. 

Doily discliaige. in second-feet, of Santa Ysahel Creek, near Santa Ysahel. Calif., for 
1913-1914— Gontmwed. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


Ma jr. 


June. 


1913-14. 
j 


0.0 
.0 
.0 
.0 
.0 

.0 
.0. 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 

.2 
.2 
.0 
.0 
.0 

.0 

;§ 

.2 
.0 

.0 
.0 
.2 
.2 
.2 
.2 


0.2 
.5 
.8 
.2 
.8 

.2 
.2 
.2 
.2 
.2 

.2 

.8 
2.9 
1.5 

.8 

.8 
.8 
.8 
2,9 
2.9 

1.5 
1.5 

1.0 

1.5 

L5 

1.5 
1.5 
1.5 
1.5 
1.5 


1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 

.8 
.8 

.8 
1.5 

.8 
1.2 
1.5 

1.5 
1.5 

1.5 
1.5 
1.5 

1.5 
1.5 
4.3 
2.9 
1.5 

2.9 
2.9 
2.2 
1.5 
4.3 
2.9 


2.9 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
4.3 

4.3 
4.3 
5.3 
6.3 
4.3 

2.9 
2.9 
2.9 
4.3 
10 

25 
84 
32 
22 
19 
13 


11 
8.3 
6.3 
6.3 
6.3 

6.3 
4.3 
6.3 
4.3 
4.3 

4.3 
4.3 
4.3 
4.3 

4.3 

4.3 
4.3 
4.3 

19 

80 

80 
50 
36 
25 
22 

19 
19 
19 


17 
16 
13 
11 

11 

11 

11 
9 

8.3 
8.3 

8.3 
6.3 
6.3 
6.3 
5.3 

4.3 
4.3 
6.3 
6.3 
6.3 

6.3 
6.3 
6.3 
6.3 
6.3 

G. 3 
6.3 
6.3 
8 
11 
8.3 


8.3 
8.3 
6.3 
6.3 
6.3 

6,3 
6.3 
6.3 
6.3 
6.3 

6.3 
6.3 
6.3 
6.3 
6.3 

4.3 

tl 

4.3 

6.3 

6.3 

6.3 
8.3 
6.3 
6.3 

6.3 
6.3 
6.3 
6.3 
8.3 


8.3 
6.3 
8.3. 
6.3' 
6.3 

6.3 
6.3 
6.3 
6.3 
6.3 

6.3 
6.3 
6.3 
6.3 
6.3 

6.3 
5.3 
4.3 
4.3 
4.3 

4.3 
4.3 
4.3 
4.3 
4.3 

4.3 

4.3 
4.3 
4.3 
2.9 
2.9 


2.9 




2.9 


3. 


2.9 


/i 


2.9 
2.9 


5 


G. 


2.9 


7 


4.6 


8-. . . ... 


6.3 


9 


4.3 


10 


4.3 


u 


4.3 


12 


4,3 


1:5 


2.9 


14 


^.9 


15 

16 


2.9 
2.9 


1" . . . 


2.9 




2 9 


i^;::;;: ::;:::;:;::.::;:::: 


2.9 


20.. 


2.9 


21 


2.9 


22 


2.9 


23 


2.9 


24.. 


2.9 


25 . 


1.5 


2f^... 


1.5 

1.5 


2S 


1.5 


28 .. 


1.5 


30 


1.5 


31 









Note. —Previous to Oct. 8, 1913, gage was read only occasionally. No gage-heLgiit record for Sundays; 
discliarge interpolated or estimated by comparison witli record of flov/ at Mesa Grande station. 

Monthly discharge of Santa Ysahel Creeh near Santa Ysahel, Calif ., for 1913-14. 



Month. 


Discharge in second- 
feet. 


Kun-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Run-off 
(total in 


Maxi- 
mum. 


S: «-- 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1913. 
September 


0.5 


i 

0. 2 1 0. 32 


19 


1913-14— Con. 

February 

March 

A pril 


80 

17 
8.3 
8.3 
6.3 


4.3 
4.3 
4.3 
2.9 
1.5 


16.7 
8.17 
6.37 
5.34 

2.98 


928 
502 
379 


1913-14 


.2 

2.9 
4.3 
84 


. i .10 
.2 1.10 

.!^ ' 1.7S 

1.5 ' S.68 


6 

66 

109 

. 534 


October 


May 


328 






177 


December 

January 


The year.. 




84 


.0 


4.18 


3,030 



Note.— No flow July to September, 1914. 

SANTA YSABEL CREEK NEAR MESA GRANDE, CALIF. 

Location. — In NW. I sec. 21, T. 12 S., R. 2 E., at Sutherland dam site, about 1 mile 
below Sutherland, 1^ miles above mouth of Black Canyon Creek, and 4| miles 
southwest of Mesa Grande, San Diego County. 

Drainage area. — 53.4 square miles (measured on topographic maps). 

Elevation. — About 1,900 feet above sea level. 

Records available. — December 29. 1912, 'to September 30, 1918. 

Gage. — Friez water-stage recorder on right bank just above Sutherland dam site in- 
stalled August 27, 1913. Before this date, record from staff gage and Sanders & 
Rising water-stage recorder at same site and datum. Gage datum was lowered 
0.31 foot April 21, 1916, and 0.21 foot October 12, 191G. 



SAN DIEGUITO RIVER BASIJT. 



119 



Discharge measurements. — Made from cable at gage or by wading. 

Channel and control. — Sand ; sliifting. A concrete control was constructed at an 
outcrop of bedrock 20 feet below gage. It was damaged by the flood of 1916 and 
repaired in June and November 6-9, 1916. (See PL VI, A, p. 17.) Both banks 
are high, covered with brush, and not subject to overflow. 

Extremes op discharge. — 1912-1918: Maximum stage recorded, 11.0 feet January 
27, 1916 (discharge, 21,100 second-feet); no flow October 1 to 2, 1913, August 12 
to 29, and September 6 to 13, 1914. 

Diversions. — No large diversions above the station. 

Regulation. — None. 

Accuracy. — Stage-discharge relation not permanent, as sand collects at artificial con- 
trol. Rating curves covering short periods are fairly well defined. Daily dis- 
charge ascertained by applying to the rating table mean daily gage height obtained 
by inspecting recorder graph, or, for days of considerable fluctuation, by aver- 
aging the hourly discharge; discharge for period for which rating curves were 
not available determined by shifting-control method or interpolated between 
discharge measurements . Records goods. 

Discharge measurements of Santa Ysahel Creek near Mesa Grande, Calif., for 1912-1918. 



Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1912. 




Feet. 


Sec.-tt. 


1914. 




Feet. 


Sec.-ft. 


Dec. 8 


E W. Case 




3.0 


Jam. 22 


F. C. Ebert 


0.55 


5.0 


17 


F. C. Ebert 




2.9 


28 
Feb. 4 


R.W.Day 


1.41 

.82 


88 









do 


22 


1913. 








11 


do 


.72 


15 


Jan. 17 


E. W. Case 


0.70 


16 


18 


do 


.79 


15 


Feb. 7 


do, 


.51 


6.7 


19 


do... 


1.44 


105 


14 


(Jo 


.49 


5.2 


20 


do 


L21 


79 


15 


do 


.48 


4.9 


21 


do 


2.95 


481 


16 


do 


.47 


4.6 


22 


do.. 


2.36 


243 


IS 


F. C. Ebei-t 


.47 
.50 


4.1 
5.2 


26 
Mar 5 


do 

F C Ebert 


L45 
.93 


66 


20 


R W Day 


40 


26 




.81 


26 


11 


R. W.Dav 


.83 


24 


Mar. 5 


do, 


.71 


19 


18 


.....do....: 


.76 


19 


13 


do 


.76 


23 


25 


.....do. 


.75 


16 


18 


F.C. Ebert > 


.66 


14 


Apr. 1 


do 


.77 


19 


26 


R. V/. Dav 


.76 
.72 


23 

18 


8 
15 


.....do 

do.... 


.73 

.67 


15 


Apr. 3 


do....: 


12 


10 


do... 


.63 


12 


23 


F.C. Ebert 


.78 


22 


18 


do 


.69 
.60 


17 
9.5 


29 

May 6 


R.W.Day... 


.79 
.71 


19 


23 


do., 


13 


30 


do 


.55 


8.0 


13 


do 


.65 


11 


May 19 


do...... 


.49 


4.8 


Dec. 14 


D. A. McCluBg 


.47 


3.3 


29 


do 


.51 


5.7 










June 6 


do. 


.45 


3.7 


1915. 








11 


do.... 


.48 


4.0 


Jan. 18 


D.A.MeClung 


.46 


2.7 


17 


F. C. Ebert 


.37 
.31 
.26 


2.4 
L5 
1.1 


25 
Feb. 22 

Mar. 8 


do 

R. W. Dav 


.73 

1.40 
L38 


13 


25 


R, W.Day 


84 


July 2 


do.... 


.do..,.: 


100 


9 


do.,.,..... 


.14 


.2 


15 


.....do.. 


1.19 


60 


16 


do............. 


.13 


.2 


22 


do 


LOS 


51 


23 


do..., 


.15 


.3 


Apr. 5 


do 


1.07 


31 


29 


do.... 

F. C. Ebert 


.22 
.15 


.6 
.1 


^ 12 
Apr. 19 

May 11 
25 




.91 

.90 


25 


Aug. 27 
Oct. 1 


R. W. Day 


25 


R. W. Dav 




.0 
.3 


W. J. Isbeil 


L69 
L27 


129 


8 


do....: 


.19 




78 


15 


do 


.18 


.2 


June 1 


(Jo.,., 


Lll 


63 


25 


do 


.13 


.1 


9 


(Jo 


.96 


39 


29 




.18 


.3 


29 


do..., 


.81 


17 


Nov. 5 


do. 


.27 


.8 


July 13 


do..... 


.66 


10 


12 


do 


.28 


.9 


20 


do 


.65 


9.9 


18 


do 


.35 


L7 


27 


do 


.61 


7.3 


26 


do..... 


.40 


2.2 


Aug. 3 


do 


.56 


6.4 


Dec. 3 


do 


.41 


2.2 


10 


do 


.49 


3.4 


10 


do 


.37 


L8 


17 


do 


.49 


3.4 


17 


do...... 


.40 


2.2 


24 


do 


.47 


3.4 


24 


.... do . 


.53 


4.5 


31 


.....do 


.46 


3.2 


31 


do 


.56 


5.1 


Sept. 14 


do 


.51 


4.7 










21 


do 


.45 


2.9 


1914. 








28 


do... 


.46 


2.9 


Jan. 3 


R. W.Dav... 


.48 


3.8 


Oct. 5 


do 


.46 


1.7 


7 


do 


.45 


2.7 


12 


do 


.45 


2.9 


14 


do 


.43 


2.9 


20 


do 


.37 


1.8 


21 


do 


.57 


5.9 


26 


do 


.38 


L8 



120 SURFACE WATER 0:F'PACIEIC SLOPE, SOUTHERN CALIFORETIA. 

Discharge measurements of Santa Ysabel Creek near Mesa Grande, Calif. , for 1912- 
1918— Continued. 



Date. 


Made by — 


height. 


Dis- 
charge. 


Date. 


Made by — 


Gage 
height. 


Dis- 
charge. 


1915. 
Nov. 2 


W. J. Isbell 


Feet. 
0.40 
.52 
.48 
.56 
.52 
.55 

1.04 
,96 
1.02 
.73 
.82 
.72 
.73 
.67 
.65 
.44 
.36 
.60 
.48 
.63 
.63 
.62 
.63 
.60 
.67 
.56 
1.16 
1.14 
1.37 
1.34 
1.35 


Sec.-ft. 
1.9 
3.6 
3.5 
7.0 
5.2 
5.2 

35 
120 
123 

85 

96 

72 

93 

52 

50 

32 

37 

32 

26 

22 

18 

18 

13 
6.7 
5.7 
2.7 
8.8 
6.2 
5.8 
7.8 
6.2 


1917. 

Jan. 2 

21 

Feb. 13 

18 

23 

27 

Mar. 7 

9 

20 

27 

Apr. 13 

19 

May 21 

June 7 

29 

Aug. 20 

Oct. 1 

Nov. 19 

Dec. 9 

24 

31 

1918. 

Mar. 8 

14 

31 

May 6 

Aug. 13 

30 


D. A McClung 


Feet. 
1.41 
1.86 
1.50 
1.73 
2.78 
1.97 
1.70 
1.72 
1.63 
1.58 
1.52 
1.67 
1.48 
1.42 
1.30 
1.16 
1.10 
1.20 
1.22 
1.23 
1.22 

1.-68 
1.87 
1.42 
1.34 
1.15 
1.12 


Sec.-^L 


16 


do 

do 

F. C. Ebert 


F. C. Ebert 


54 


30 
Dec. 6 


McClung and Dubois.. . 
F. C. Ebert 


17 
42 


11 


do 

W. J. Isbell 


T, B. Dubois . 


345 


21 


McClung and Dubois.. . 
D. A. McClung... 


91 




W. J. Isbell 


41 


1916. 


F.C. Ebert 


45 


Jan. 11 


D. A. McClung 


32 


Feb. 18 


Day and Case 


F. C. Ebert 


23 


Mai-. 7 
17 


do 

R. W. Day.. 


McClung and Holley . . . 
McGlashan and Ebert.. 
F. C. Ebert 


23 
35 


29 


do 

W. J. Isbell : . . 


16 


Apr. 5 
12 
25 

May 2 


D. A. McClung 


16 


do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

F. C. Ebert 


do 

McClung and Rogers . . . 
D. A. McClung 


6.6 
1.5 
.6 


9 
16 
23 
30 


do 

do 

do 

F. C. Ebert. .. 


1.4 
1.9 
2.8 

2.8 


June 6 
13 
20 


F. C. Ebert . . . 


35 


July 11 
19 


do 

D. A. McClung 


79 
19 


Aug. 10 
Sept. 1 
Oct. 10 


W. J. Isbell - . 


F.C. Ebert. .. 


12 


do 

S. L. R. Case 


D. A. McClung . 


1.6 


do 


.4 


19 


W. J.Isbell 




Dee. 1 
9 


Isbell and McClung. . . 
F. C. Ebert 




21 


McClung and Case 





Daily discharge, in second-feet, of Santa Ysabel CreeJc near Mesa Grande, Calif., for 1912- 

1918. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1912-13. ^ 








2.8 
2.8 
2.8 
2.8 
2.8 

2.5 

2.5 

3 

4 

6 

4 

6 

4.5 

4.5 

5 

42 
17 

10 

7.5 
5 

5 
5 

3.9 
3 9 
5 

5 

5 

3.9 

3.9 

3.9 

3.9 


5 
5 
5 
5 

8 
5 
10 
5 
5 

5 
5 
5 

5 
5 

3.9 

3.9 

3.9 

4 

5 

10 
80 
17 
15 
91 

26 
61 
31 


31 
31 
31 
24 
17 

20 
23 
26 
26 
26 

25 
24 
22 
21 
19 

17 
15 
14 
14 
17 

22 
26 
31 
61 
26 

22 
22 
22 
22 
17 
17 


17 
17 
17 

17 
16 

16 
16 
15 
14 
14 

10 
10 
10 
10 
10 

12 
14 
17 
10 
10 

10 
10 
10 
10 
7.5 

7.5 
7.5 

n 


7.5 
7.5 
7.5 
7.5 
7.5 

7.5 

5 

5 

5 

5 

5 
5 
5 
5 

5 

5 
5 
5 
5 
5 

5 

5 
5 
5 

5 
5 
5 
5 

5 

5 


5 

5 

5 

4.5 

4 

3.9 
3.9 
3.9 
3.9 
3.9 

5 

2.8 

2.8 

2.8 

2.8 

2.5 

2.2 

3 

3.9 

2.8 

1.5 

1.5 

3.9 

5 

1.5 

3 

5 

4.5 

4 

3.9 


1.5 

.8 
1.2 
1.5 

2.8 

1.6 
.5 
.5 

•4 
•J 

.5 


0.4 
.3 
.3 
.3 
.2 

.2 
.1 
.1 
.1 
.1 

.1 

.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 

.1 

.2 

.3 
.4 
.4 
.2 
.2 
.4 


0.4 


2... 








.4 


3 








.4 


4 








.2 


5 .. .. 








.1 


6 








.1 


7 








.1 


8 .. .. 






3.0 


.0 


9 






.0 


10 . .. 








.0 


11 






. 


.0 


12 








.0 


13 








.0 


14 


.. 






.0 


15 








.0 


16 








.0 


17 






2.9 


.0 


18 







.0 


19 









.0 


20 








.0 


21 








.0 


22 .... 








.0 


23 








.0 


24 








.0 


25 








.0 


26 .... 








.0 


27 








.0 


28 








.0 


29 






2.8 

2.8 
2.8 


.0 


30 






.0 


31 






.0 



SAN DIEGUITO RIVER BASIN. 



121 



Daily discharge, in second-feet, of Santa Ysabel Oreeh near Mesa Grande, Calif., for 1912- 
1918— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1913-14. 
1 


0.0 
.0 
.05 
.05 
.05 

.1 
.2 
.3 
.4 
.4 

.4 
.3 
.3 
.3 
.3 

.3 
.3 
.3 
.3 

,.2 

.2 
.2 
.2 
.3 
.3 

.3 
.2 
.2 
.3 
.3 
.4 

.2 
.5 
.8 
1.1 
1.4 

1.4 
1.4 
1.4 
1.4 
1.1 

.9 
.8 
.5 
.5 
.5 

.5 
.5 
.6 
.7 
.5 

.8 
1.3 
1.2 
.8 
.5 

.4 
.4 
.4 
.4 
.5 
.8 


0.4 
.7 
.9 
.9 
.9 

.9 
.9 
.9 
.9 
1.0 

1.0 
1.0 
1.3 
1.3 
1.3 

1.4 
1.5 
1.7 
1.5 
4.4 

4.8 
4.4 
3.2 
2.5 
2.2 

2.2 
2.2 
2.2 
2.2 
2.2 

.9 
.9 
1.0 

.8 

.7 

.5 
.5 
.5 
1.3 

2.7 

2.5 
2.3 
2.1 
1.9 
1.7 

1.5 
1.3 
1.1 

.8 

.7 

.7 

i!i 

1.3 
1.3 

1.4 
1.4 
1.4 
1.6 
1.6 


2.4 
2.4 
2.4 
2.4 
2.4 

2.4 
2.2 
2.2 
2.1 
1.9 

1.9 
1.9 
2.0 
2.1 
2.1 

2.2 
2.2 
2.2 
2.2 
3.0 

3.9 
5.0 
9.1 

4.6 

4.6 

6.2 
5.5 
5.3 
5.0 
5.3 
5.3 

2.7 
4.1 
3.4 
3.4 
3.6 

3.4 
3.2 
2.7 
2.7 
2.5 

3.0 
6.2 
4.8 
3.2 
3.0 

3.2 
5.3 

6.7 
7.6 
7.6 

5.5 
5.7 
6.0 
5.5 
5.3 

5.3 
4.6 
3.9 
3.9 
3.9 
4.1 


• 5.0 
5.0 
4.4 
4.1 
3.9 

3.6 
3.0 
2.9 
2.9 
2.9 

2.9 
2.9 
2.9 

2.7 
3.6 

9.1 
9.6 
9.1 

14 

• 8.6 

5.5 
5.0 
5.7 
5.0 
13 

270 
800 
154 
122 

40 

33 

4.1 
4.1 
4,4 
4.4 

4.8 

4.8 
4.6 
4.8 
5.5 
5.3 

3.4 
3.4 
3.4 
3.6 
3.4 

3.4 
3.6 
3.2 
3.2 
3.2 

3.4 

14 
7.6 
5.7 

10 

10 
8.1 
26 
471 

408 

78 


29 
25 
24 
22 
22 

20 
19 
18 
17 
16 

15 
13 
12 
12 
11 

10 
10 
9 
205 
264 

593 
175 
75 
50 
32 

28 
28 
31 

60 

278 
227 
107 
66 

53 

45 
42 
52 
455 

571 
332 
181 
121 
91 

112 
134 
130 
127 
192 

130 
93 
84 
112 
192 

136 
125 
123 


32 
31 
34 
36 
37 

33 
31 
27 
25 
23 

24 
24 
22 
22 
21 

20 
19 
19 
19 

18 

17 
17 
16 
16 
16 

17 
18 
18 
19 
35 
25 

181 
215 
136 
130 
120 

110 
105 
100 
94 
115 

96 
88 
78 
69 
62 

62 
60 
58 
57 
53 

52 
51 

48 
47 
44 

43 
40 
40 
42 

40 
38 


17 
17 
16 
16 

20 

18 
17 
15 
15 
15 

17 
15 
15 

14 
12 

12 
11 
10 

8.5 

7 

10 
32 
30 
18 
16 

15 
16 
15 
21 
24 

37 
35 
34 
32 
31 

34 
36 
37 
35 
26 

27 
25 
25 
25 
30 

34 
29 
27 
25 
22 

60 
107 
63 
69 
52 

44 
44 
44 
60 
182 


20 
20 
18 
17 
15 

14 
12 
12 
12 
12 

12 
11 
11 
11 
11 

11 
11 

10 
10 
9.4 

8.9 
8.9 
8.4 
8.4 
8.4 

8.4 
8.4 
8.1 
7.7 
7.7 
7.0 

255 
379 
263 
240 
540 

313 
251 
214 
180 
153 

125 
116 

108 
101 
99 

81 

98 
1.36 
106 

96 

91 

87 
77 
78 

75 

73 
70 
66 
66 
65 
62 


7.0 
7.0 
7.4 
7.0 
7.4 

7.4 

11 

14 
6.7 
6.0 

5.7 
5.0 
4.8 
4.8 
4.6 

4.6 
4.4 
4.2 

4.2 

4.2 

4.2 
4.0 

3.8 
3.8 
3.6 

3.6 
3,0 
2.4 
1.5 
1.0 

60 
56 
55 
54 
51 

47 
44 
41 
41 
39 

38 
37 
36 
35 
34 

31 
30 
29 
28 
28 

27 
26 
25 
23 
22 

21 
21 
19 
17 
16 


1.0 
1.0 
1.1 
1.1 
1.0 

.9 
1.2 
1.3 
1.2 
1.0 

1.0 
1.1 
1.2 
1.4 

1.4 

1.2 
.9 
.7 
.6 
.5 

.6 
.2 

'.2 
.2 

13 
13 
14 
14 
14 

14 
13 
12 
12 
11 

11 
10 
10 
10 
10 

10 
10 
10 
10 
9.5 

8 

8 

8 

7.5 

7.5 

7.5 
7.5 
6.5 
6.5 
6.5 
7 


0.1 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.2 
.2 

6.5 

6.5 

6.5 

5 

4.5 

4.5 

3.5 

3 

3.5 

3.5 

3.5 

3 

3 

2.5 

2.5 

3 

3.5 

3.5 

3 

3 

3 
2 
1.5 

2.5 
3 

5.5 

7 

4.5 

4 

3.5 

3 


0.4 


2 


,4 


3 ... 


.4 


4 


.2 


5 


.1 


6 


.0 


7 


.0 


8 


.0 


9 


.0 


10 


.0 


11 


.0 


12 


.0 


13 


.0 


14 


.3 


15 


.3 


16 


.3 


17 


.2 


18 


.1 


19 


.1 


20 


.1 


21 


.1 


22 


.2 


23 


.2 


24 


.2 


25 


.1 


26 


.2 


27 . ... 


.6 


28 


.6 


29 


.4 


30 


.2 


31 




1914-15. 
1 


3 


2 


3 


3 


3 


4 


3.5 


5 


3.5 


6 


3.5 




3.5 


8 


3.5 


9 


3.5 


10 


3.5 


11 


2.5 


12 


.5 


13 


1.5 


14 . 


4 


15 


4.5 


16 


4.5 


17 


4 


18 


1 


19 


3 


20 


3 


21 


3 


22 


3 


23 


3 


24 


3 


25 


3 


26 


3 


27 


3 


28 


3 


29 


3 


30 


3 


31 





122 SURFACE WATER OF PACIFIC SLOPE^ SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Santa Ysabel Creek near Mesa Grande. Calif., for 1912-^ 
:?Qi^— Continued. 



Day. 


Oct. 


Nov. 


Dee. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1915-16. 
1.. 


2.6 
2.4 
2.2 
2.0 

1.7 

1.8 
2.0 
2.1 
2.3 
2.5 

2.7 
2.9 
2.8 
2.7 
2.5 

2.4 
2.3 
2.1 

2.0 
1.8 

1.8 
1.8 
1.8 
1.8 
1.8 

1.8 
1.8 
1.8 
1.8 
1.9 
1.9 

20 
30 
11 

9 
8.5 

11 
6.5 

7 

7.5 

9 

8 
13 
5.5 
5.5 

4.8 

4.6 

5 

5.5 

5.5 

5 

5 

4.8 
5.5 
6.5 

4.8 

4.6 
5.5 
5.5 
6.5 

6.5 


1.9 
2.0 
2.0 
2.0 
2.2 

3.0 

6 

4.9 

4.3 

6.5 

6.5 
5.5 
4.9 
4.3 
4.0 

4.0 
3.4 
3.2 
3.2 
3.2 

3.4 
3.6 
3.8 
3.6 
3.4 

3.4 
3.2 
3.2 
3.2 
3.2 

5.5 
5.5 
5.5 

5.5 
9.5 

9 

8 

6 
5.5 

6.5 

6.5 

5.5 

6 

5 

5.5 
5.5 
5.5 
5 

5.5 
6 

7 
7.5 

8 

7.0 
7.5 
6 


3.2 
3.2 
3.2 

12 

13 

6.5 
6 
6 
5.5 

5 
5 
5 

Ps 

'I 

6.5 

6 

5 

5 

5 
5 
6 
6.5 

6 

6 

6 

7.5 
10 
12 

6.5 

9 
11 
11 

8 

8.5 
7.5 
6 

6.5 

5^5 

5.5 

6.5 

6 

5.5 

6.5 
6.5 
6.5 
7.5 

7.5 

7 

8 
31 
48 

27 
23 
14 
14 
14 
14 


4.0 
10 
12 
9 
10 

10 
9.5 
8 
18 
62 

45 
19 
15 
36 

54 

405 
4,130 
4,200 
2,580 
1,280 

500 
480 
225 
200 
416 

406 

10, 800 

4,720 

1,520 

800 

560 

13 
12 
88 
39 
21 

16 
13 
11 
11 

10 
12 
32 
19 
35 

35 
23 
39 
72 

72 

54 
44 
36 
32 
29 

29 
28 
31 
30 
28 
27 


493 
461 
400 
341 
313 

287 
262 
239 
206 
196 

186 
166 
157 
148 
130 

130 
130 
122 
122 
114 

139 
139 
122 
107 
107 

122 
157 
122 
200 

25 
25 
17 

18 
18 

17 
16 

17 

17 
18 
17 
16 
16 

15 
50 
55 

77 
86 

64 
204 
294 
162 
165 

118 
96 
83 


240 
195 
125 
115 
330 

150 
123 
95 
90 

85 

150 
140 
125 
120 
110 

100 
85 
83 
84 

110 

113 
110 

204 
127 
122 

119 
107 
100 
96 
93 
89 

72 
65 
54 
54 
54 

51 
45 
41 
46 
70 

61 
52 

48 
50 
48 

42 
40 
38 
35 
35 

30 
27 
25 
25 
25 

24 
23 
21 
21 
21 
22 


86. 
82 
79 
75 
72 

75 

78 
81 

84 
87 

90 
93 
72 
70 
75 

74 
67 
64 
62 
59 

57 
61 
58 
56 
52 

51 
51 
51 
51 
51 

20 
19 

18 
15 
14 

15 
16 
15 
31 
31 

21 
19 
19 
19 
21 

86 
68 
42 
35 
28 

27 
26 
24 
22 
20 

20 
27 
28 
27 
22 


50 
50 
45 
42 
41 

40 
38 
35 
32 
33 

33 
34 
34 
35 
36 

37 
36 
35 
35 
34 

33 
33 
32 
31 
30 

30 
29 
28 
27 
26 
26 

19 
18 
16 
15 
16 

16 
17 
22 
22 
21 

19 
16 
16 
15 
14 

14 
14 
28 
22 
19 

17 
17 
19 
36 
43 

34 
29 
28 
29 
30 
27 


25 

24 
24 
23 
22 

22 
22 
21 
20 
20 

19 
19 
18 
18 

18 

18 
18 
18 
18 
18 

18 
18 
18 
17 

17 

16 
16 
16 

21 
20 
21 
21 
21 

21 
21 
21 
20 
15 

14 
14 
13 
13 
12 

12 
13 
13 
12 

8.5 

6 
6 

7.5 
7.5 

7.5 

6 

6 

4.8 

3.4 


15 
15 
15 
14 

14 

14 
14 
13 
13 
13 

13 
12 
11 
10 
9 

8 

7.5 

7 

6.5 

6.5 

6.5 
6.5 
6.5 
6.5 
6 

6 
6 
6 
6 
6 
6 

4.3 
5.5 

7 
8 

7 

7 

6.5 

6.5 

6 

5 

2.5 

4.8 

6 

5.5 

6 

5 

4.8 

2.1 

3.8 
3.4 
3.4 
6.5 
5 

4.8 

6.5 

6 

5.5 

5.5 

6 


6 
6 
6 
6 
5.5 

5.5 
5.5 
5.5 
5.5 
5.5 

1.8 
1.8 
1.6 
1.4 
2.0 

4.9 
3.3 
3.5 
5.3 

5.3 

4.9 
2.9 
2.7 
3.5 
4.9 

5,5 
5.5 
5.5 
4.2 
4.2 
3.5 

4.8 
4.8 
4.8 
4.8 
4.8 

3.8 
3.4 
3.0 
2.5 
2.5 

3.4 
3.4 

3.'0 
2.3 

2.5 
2.3 
2.3 
2.3 
2.3 

2.5 
1.9 
2.3 
2.1 
2.3 

2.1 
1.9 
.8 
.6 
.5 
.5 


3.3 
3 3 




3 


3 9 


4 


4 2 




3.9 
3 9 


6 


7 


3 9 


8 


4 2 


9 


4 6 


10... 


4.6 


11 


3 5 


12 


3 1 


13 


2 7 


14 


2.7 


If) 


8 


l'^, 


6 5 


17 


4 6 


18 .... 


9 


19 


12 


20 


10 


21 


10 


22 


11 


2'i 


11 


•^l ..-- 


12 


25 


9 5 


26 


6 5 


27 . 


6.5 


2S - - - - 


7 5 


20 


18 


30 - . - - 


18 


31 ' - - 




1916-17. 


5 


2 


.5 


3 


3.4 


4 


1.4 


5 


2.5 


6 


2.5 




2.3 


8 

9.. 


2.3 
2.1 


10 


1.9 


11 


1.9 


12 


1.9 


13 . ... 


2.1 


14 


2.3 


15 


1.7 


16 


1.6 


17 


1.6 


18 


1.6 


19 


1.7 


20 


12 


21 


3.0 


22 


1.9 


23 


2.1 


24 


2.5 


25 


2.3 


26 . .. 


1.9 


27 


1.4 


28 


1.4 


29 


1.4 


30 . 


1.7 


31 





SAN DIEGUITO EIVEE BASIN ^ 



123 



Daily discharge, in second-feet , of Santa Ysahel Creek near Mesa Grande, Calif. , for 1912- 
1918 — Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June, 


July. 


Aug. 


Sept. 


1917-18. 
1 


1.0 
1.0 
.6 
.5 

.5 

.9 

.7 
.7 
.7 
.9 

1.2 
1.2 
1.3 
1.8 
1.5 

2.2 
2.9 
2.2 
1.2 
1.2 

1.0 
1.1 
1.1 
1.0 
1.1 

1.1 

1.3 
1.8 
1.4 
1.2 
1.0 


0.9 

.9 
.7 
1.1 
1.8 

4.6 

5 

4.0 

3.2 

2.9 

2.6 
2.2 
2.2 
2.6 
2.9 

2.9 
2.2 
1.4 
1.4 
2.2 

1.8 
2.6 
3.2 
4.0 
4.0 

3.2 
3.2 
2.9 
2.9 
2.9 


2.9 
2.9 
2.9 
2.2 

2.2 

2.6 
2.6 
1.5 
1.4 
1.4 

1.8 
1.8 
2.6 
1.8 
1.5 

1.5 
1.5 
1.8 

1.8 
1.8 

2.2 
2.9 

2.2 
2.6 
2.2 

2.2 
1.8 
2.2 
1.8 
2.2 
1.8 


2.2 
2.2 
1.5 
1.5 
1.5 

1.8 
1.8 
2.2 
2.9 
2.9 

2.9 

2.9 

9 

4.0 

3.6 

2.9 
2.9 
2.2 
3.2 
2.9 

2.9 
2.6 
2.2 
2.2 



13 
7 

5.5 
5 

4.3 
4.0 


3.2 
3.2 
3.2 
3.2 
3.2 

2.9 
3.6 
2.9 
2.6 
2.9 

2.9 
3.2 
3.2 
3.6 
3.6 

3.6 
4.6 

18 
11 
7.5 

5.5 
27 
13 

8.5 
9.5 

8 
7 
5.5 


5 

4.6 

4.6 

4.3 

4.3 

7 
36 
52 
14 
19 

204 
671 
208 

78 

56 

38 
34 
30 
68 
93 

59 
51 
45 
43 
34 

32 
29 
24 
22 
21 
20 


21 
22 
22 
21 
21 

20 
19 
17 
18 
17 

17 
18 
20 
19 
17 

16 
15 
14 
13 
12 

11 
12 
13 
14 
14 

15 
16 
16 
15 
14 


12 
12 
12 
12 
12 

12 
12 
12 

14 
13 

12 
12 
12 
12 
12 

12 
12 
12 
12 
12 

11 

10 

10 
9.5 
9.5 

10 
10 
14 
22 
13 
12 


10 
9.5 
9.5 
9.5 
9 

8.5 

9 

8.5 

9 

8.5 

6.5 
3.5 
4.7 
3.5 
6.5 

7.5 
6 
6 
7.5 

7 

6.5 

7.5 

7 

6 

5.5 

6.5 

6 

5.5 


5.5 
4.1 
3.5 
3.5 
3.5 

3.0 
3.5 
3.5 
4.1 
.3 

.3 
.3 
.3 
.3 
.3 

.2 
2.0 
3.0 
2.0 
1.5 

1.0 
1.0 

.2. 

.2 

.2 
.2 
.2 
.3 
.2 
.2 


0.5 
.5 
.3 
.5 

.7 

1.0 
3.5 
4.1 
2.0 
2.5 

1.0 
1.5 
2.0 
3.0 
4.1 

4.1 
3.5 
2.5 
1.5 
.3 

.3 
.2 
.2 
.2 
.2 

3! 5 
1.0 

.5 
1.5 
2.5 


1.5 


2 


.7 


3 


.2 


4 .. 


.2 


5 


.2 


6 


.2 


7 


.1 


8 


.2 


9 


.2 


10 


.2 


11... 


.5 


12 


3.0 


13^ 


5.5 


14 


6 


15 


- 3.5 


16 


3.0 


17 


2.5 


18 


2.0 


19 


2.5 


20 


1.0 


21 


1.0 


22 


2.5 


23 


3.0 


24 . ... 


1.5 


25 


.7 


26 


.5 


27 


.5 


28 


.3 


29 


.3 


30 


.4 


31 









Note.— Daily discharge determined as follows: 1912-1915, Dec. 29, 1912, to Jan. 25, 1914, from welJ-defined 
rating curve; Jan, 26 to Apr, 29, 1914, from rating curves covering short periods and by shifting-control 
method; Apr. 30, 1914, to Mar. 2, 1915, from well-defined rating curves; Mar. 3 to Sept. 30^ 1915, from rating 
curves covering short periods and by shifting-control method. 

1916: Shifting-control method used Oct. 1-25, 1935, Dec. 4-14, Mar. 30 to Apr. 12, and May 10 to Aug. 10. 
.Tan. 16-31, computed from hydrograph; Oct. 1-11, estimated from discharge measurements; Nov. 6-9, 
interpolated. Staff gage read Jan. 28 to Feb. 28, and Aug. 11 to Sept. 21, no record Mar. 1-16; discharge esti- 
mated from record of flow on San Luis Rey River near Mesa Grande. Control repaired Nov. 6-9; discharge 
interpolated. 

Staff gage read Oct. 7-12, 1917, and June 8-14, 1918. Hourly discharge averaged for March 7, 10-13, and 
19,1918. 

Monthly discharge of Santa Ysabel Creek near Mesa Grande, Calif, for 1913-191S. 





Month. 


Discharge in second-feet. 


Run-ofr 
(total in 
acre-feet). 




Maximum. 


Minimum. 


Mean. 


Januarv 


1913. 


42 
91 
61 
17 
7.5 
5 

2.8 
.4 
.4 


2.5 

3.9 
14 

7.5 

5 

1.5 
.4 
.0 
.0 


6.00 
15.6 
23.60 
11 

7.42 
3.58 
.65 
.14 
.06 


369 


Februarv 


866 


March.." 


1 450 


April 


'7O8 


Mav 


456 


June 


213 


July. 


40 


August 


9 


September 


4 








The period 








4 120 
















124 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Monthly discharge of Santa Ysahel Creek near Mesa Grande, Calif., for 1913-1918 — Con. 



Month. 


Discharge in second-feet. 


Run-oflE 
(total in 




Maximum. 


Minimum. 


Mean. 


acre-feet). 


1913-14. 
October 


0.4 
4.8 
9.1 
800 
593 
37 
32 
20 
14 
1.4 
.2 
.6 


0.0 
.4 

1.9 

2.7 

9 
16 

7 

7 

1 

.1 
.0 
.0 


0.24 

1.76 

3.37 

50.2 

63.9 

23.6 

16.2 

11.3 

5.28 

.74 

.05 

.19 


15 


November ... 


105 


December 


207 


January 


3,090 


February 


3,550 


March 


1,450 


April . . . 


964 


May 


695 




314 


July 


46 


August 


3 


September 


11 






The year 


890 


.0 


14.4 


10,400 






1914-15. 
October 


1.4 
2.7 
7.6 

471 

571 

215 

182 

540 
60 
14 
7 
4.5 


.2 
.5 
2.5 
3.2 
42 
38 
22 
62 
16 
6.5 
1.5 
.5 


.78 
1.27 
4.39 
36.2 
156 
79.8 
44.4 
150 
34.4 
10.0 
3.77 
3.07 


48 


November 


76 


December 


270 


January 


2,230 


February. . . . 


8,660 


March 


4,910 


April 


2,640 


May 


9,220 


June 


2,050 


July ■. . 


615 


August . 


232 


September 


183 






The year 


571 


.2 


4.3.0 


31, 100 






1915-16. 
October .... 


2.9 

6.5 

18 

10,800 

493 

330 

93 

50 

25 

15 

6 

18 


1.7 
1.9 
3.2 
4.0 
107 

83 

51 

26 

16 
6 

1.4 
2.7 


2.12 

3.70 
7.13 

1,080 
201 
127 
68.8 
34.8 
19.2 
9.63 
4.36 
7.06 


130 


November 


220 


December .. 


438 


January 


66,400 


February 


11,600 


March 


7,810 


April 


4,090 


May 


2,140 


June 


1,140 


July 


592 


August 


268 


September 


420 






The year 


10,800 


1.4 


131 


95,200 






1916-17. 
October 


30 
9.5 

48 

88 
294 

72 

86 

43 
21 

8 

4.8 
12 


4.6 

5 

5.5 

9 
15 
21 
14 
14 

3.4 

2.1 
.5 
.5 


7.87 
6.43 
11.4 
30.6 
62.1 
40.8 
26.5 
21.5 
13.0 
5.48 
2.71 
2.25 


484 


November 


383 


December 


701 


January 


1,880 


February 


3,450 


March 


2,510 


April 


1,580 


May 


1,320 


June 


774 


July 


337 


August 


167 


September 


134 






The year 


294 


.5 


19.0 


13,700 






1917-18. 
October 


2.9 

5 

2.9 
13 
27 
671 
22 
22 
10 

5.5 

4.1 

6 


.5 

l".4 
1.5 
2.6 
4.3 
11 
9.5 
3.5 
.2 
.2 
.1 


1.20 
2.61 
2.08 
3.60 
6.29 
64.9 
16.6 
12.1 
7.14 
1.57 
1.59 
1.46 


73.8 


November 


155 


December 


128 


January 


221 


February 


349 


March 


3,990 


April 


988 


May 


744 


June 


425 


July 


96.5 


August 


97.8 


September 


86.9 








671 


.1 


10.2 


7,360 







SAN DIEGUITO RIVEiT BASIN. 125 

SANTA YSABEL CREEK NEAR RAMONA, CALIF. 

Location.— In NE. i NE. 1 sec. 27, T. 12 S., R. 1 E., at Pamo dam site, below Pamo 
Valley, li miles below mouth of Temescal Creek, 4| miles north of Ramona, San 
Diego County, and about 4 J miles above site of station maintained at mouth of 
canyon near Escondido from 1906 to 1912. Previous to February 1, 1916, station 
was maintained at Pamo Camp, half a mile above dam site. 

Drainage area. — 110 square miles (measured on topographic maps). 

Elevation. — About 900 feet above sea level. 

Records available.— February 5, 1912, to September 30, 1918. 

Gage. — Leitz water-stage recorder, with concrete well and house, on left bank afc 
dam site. Two vertical staffs have been used : " C " is fastened to outside of con- 
crete well and is at same datum as water-stage recorder; "B " is fastened to solid 
rock on left bank a short distance above "C" and is at different datum. Staff at 
original station above dam site was in four sections on left bank, a short vertical 
section at control being read at extremely low water. 

Discharge measurements. — Made from cable about 1,000 feet above gage at dam 
site or by wading. The cable at Pamo Camp was at gage. 

Channel AND CONTROL. — Sand; somewhat shifting. Banks high and clean. Channel 
straight for 200 feet above and 600 feet below gage. Concrete control, built across 
channel just below gage, was completed December 8, 1916, and was destroyed by 
high water March 12, 1918. It was only partly effective during high water, as a 
large boulder in the channel a few feet upstream caused a sand bar to form at 
control. This boulder was removed in September, 1917. November 19, 1912, a 
concrete control was built about 30 feet below gage at Pamo Camp. (See PI. V, C, 
p; 16.) It was destroyed by the flood January, 1916. 

Extremes of discharge. — 1912-1918: Maximum stage recorded, 14.0 feet January 
27, 1916 (discharge, 28,400 second-feet); minimum stage recorded, 0.74 foot 
October 1-6, 1915 (discharge, 0.1 second-foot). 

Diversions. — No large diversions above the station. Water is diverted from Santa 
Ysabel Creek near the mouth of the canyon, 4 J miles below the station, by East 
San Pasqual ditch, which takes out on left bank, and West San Pasqual ditch, 
which takes out on right bank and below intake of the East San Pasqual. 

Regulation. — None. 

Accuracy. — Stage-discharge relation not permanent. The concrete control at Pamo 
Camp, except for short periods after high water, was very effective. The rating 
curves for gage at Pamo Camp are well defined; those for new gage are fairly well 
defined. Staff gage read to hundredths three times daily. Water-stage recorder 
in operation January 22 to June 30, 1917; mean daily gage height obtained by 
inspecting recorder graph. Daily discharge ascertained by applying mean daily 
gage height to rating tables, or, for periods not covered by rating curves, by 
shifting-control method and by interpolation between discharge measurements 
when there was little change in stage. Records for 1916, 1917, and 1918 fair; 
earlier records good. 



126 SURFACE WATER OF PACIFIC SLOPE, SOUTHERIT CALIFORJSTIA. 

Discharge measureme7its of Santa Ysabel Creehnear Bamona, Calif., for 191^-1918. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


height. 


Dis- 
charge. 


1912. 
Feb. 5 


H. L. Da\is. . . 


Feet. 
0.30 
.30 
.32 
.28 
.94 
.62 
.60 
.94 
1.01 
.85 
2.22 
1.70 
1.72 
1.68 
.84 
.92 
.50 
.10 
- .10 
.06 
.99 
1.01 
1.09 

1.24 
1.25 
1.54 
1.43 
1.31 
1.23 
1.22 
1.23 
2.35 
2.00 
1.74 
2.27 
1.47 
1.39 
1.39 
1.39 
1.46 
1.93 
1.44 
1.36 
1.28 
1.33 
1.27 
1.25 
1.24 
1.19 
1.17 
1.18 
1.16 
1.12 
1.11 
1.11 
1.00 
.71 
.70 
.68 
.75 
.72 
.67 
.79 
1.47 
1.15 
1.00 
1.21 
1.18 
1.00 
.99 
.99 
.99 

1.10 
1.25 

1.32 
1.18 


Sec. ft. 
3.3 
3.8 
3.8 
3.0 
49 
21 
18 
50 
50 
41 
206 
154 
154 
141 
53 
54 
21 
1.4 
O.05 
2.2 
2.4 
2.5 
3.5 

9.2 
8.5 

40 

22 

13 
6.9 
6.7 
6.9 
168 

97 

56 
172 

27 

21 

19 

18 

25 
106 

24 

17 

15 

13 
9.5 
6.6 
6.8 
5.3 
4.6 
4.8 
4.7 
2.6 
1.7 
1.4 

b'.l 
6.1 


.2 

6.05 
6.1 

.2 
25 
5.7 
1.7 
7.2 
6.3 
2.8 
2.5 
2.4 
2.4 

3.5 
9.5 
12 

8 


1914. 

Jan. 26 
29 

Feb. 6 
10 
22 

Mar. 4 
11 
20 
28 

Apr. 9 
23 

May 1 
9 
12 

Oct. 12 

Dec. 12 

1915. 

Jan. 14 
16 
17 
23 
24 

Feb. 6 
7 
13 
20 
27 

Mar. 6 
7 
12 
20 
27 

Apr. 2 
9 
17 

May 7 

7 

7 

8 

June 1 

July 13 

Aug. 10 

24 
Sept. 16 

28 
Oct. 8 

12 

26 
Nov. 9 

30 
Dec. 6 

21 

1916. 
Jan. 11 
26 
Feb. 1 
2 
4 
5 
8 
10 
12 
16 
19 
23 
24 
26 
Mar. 1 
6 
8 
14 
16 
20 
21 
26 
27 
30 


R.W.Day... 


Feet. 
4.90 
1.90 
1.50 
1.43 
3.05 
1.72 
1.57 
1.47 
1.73 
1.46 
1.52 
1.52 
1.39 
1.38 
.84 
1.24 

1.16 
1.15 
1.15 
1.34 
1.26 
1.90 
1.82 
3.. 02 
2.23 
2.17 
2.27 
2.24 
2.11 
1.87 
1.74 
1.72 
1.66 
1.61 
3.02 
3.06 
2.94 
2.93 
2.90 
1.84 
1.37 
1.15 
1.13 
1.14 
1.14 
1.07 
1.17 
1.08 
1.26 
1.21 
1.31 
1.27 

1.83 
2.50 
4.80 
4.70 
4.40 
4.30 
3.95 
3.80 
3.65 
3.45 
3.18 
2.90 
2.88 
2.90 
3.05 
2.75 
2.55 
2.50 
2.35 
2.30 
2.50 
2.30 
2.30 
2.20 


Sec.-ft. 
1310 


5 

8 


do 

F.C. Ebert 


do 

do... 

do... 

do 

F. C. Ebert 


90 
26 


17 


H. L. Davis.. 


20 


Mar. 6 


F.C Ebert 


386 


8 


do 


60 


8 
27 




36 

27 


F.C. Ebert 


..V/aoV^V/^V.'.'.'.'.'.'.'.'. 

do 

F. C. Fbert 


Apr. 1 


do 

H. L. Da^'is . 


61 

28 


12 


F C Ebert 


33 


14 


H. L. Davis.. 


R. W. Day.. 


32 


14 
15 


do 

do 

.do.-.. 


do : 

F. C. Ebert 


18 
17 


23 


do.... 

D.A.McClung 

Lee and Sleppv 

D. A. McClung 


.2 


May 8 


F C Ebert 


10 


^ 27 


H. L. Davis 




July 15 


F. C. Ebert 




Aug. 12 


H. L. Dai^s 


.5.8 


Oct. 29 


F.C. Ebert 

E. W.Case 

do 

do 

J. E. Gerish.. . • 


4.6 


Nov. 19 

20 

Dec. 8 

1913. 
Jan. 10 


.....do 

do.... 

do 

do... 

do 

do.... 

R. W.Dav 

do... 


4.1 
15 
11 
90 

82 
277 


10 


W. S. Post 


152 


16 


E. W. Case 


131 


17 


.do.... 


do 


157 


19 


J. E. Gerish 


Ebert and Day 


157 


Feb. 15 


W. S. Post 


R. W.Day. 


119 


17 


F.C. Ebert 


do....: 

do.. 

do 

do.... 

do... 


71 


18 
22 


do 

R. W. Day 


.64 
55 


22 
25 


do 

do 


45 
41 


25 

Mar. 4 

11 

17 

18 


do 

do 

do 

do 

F. C. Ebert 


do 

do... 

do.. 

do.... 

do 

W. J. Isbell 


326 
373 
315 
311 

297 


20 


do 

do 

do. \ 

do 

do 

do 

do 

do. .. ... 


72 


24 

31 

Apr. 9 

16 


do 

do.... 

do 

F. C. Ebert 


14 
3.9 
3.0 
4 3 


22 


W. J.Isbell 


4.1 


29 


F. C. Ebert 


2.2 


May. 6 


W. J IsbeH 


3 3 


^ 11 
17 


do 

R. W. Day 


dor!! ""-'"""' 


2.5 

7.8 


23 

27 


.....do....: 

do 

do. 

do. 

F. C. Ebert 


do 

F. C. Ebert 


5.5 
11 


June 3 
13 
16 


H. D. McGlashan 

W J. Isbell 


8.9 


26 


R. W. Day ... . 


69 


July 2 


do.... 


W.D.McFadden 

.....do... 


531 


" 8 


do 


742 


14 
22 


do 

do... 

do.... 

F. C. Ebert . . 


.....do 

R W Day , 


704 
508 


30 

Aug. 28 


do.... 

do.... 

do 

do 

!;!"do!!]!"!'!!!""!!!! 

do 

do 

do 

do 

do 

F. C. Ebert 


496 
373 


Oct. 4 
Nov. 12 
13 
14 
16 
20 
21 
30 
Dec. 4 
16 
16 


do... 

do 

do... 

do 

do.... 

do 

do 

do.... 

do.... 

do 

do 

R. W. Day.... 


345 
308 
268 
221 
186 
187 
215 
310 
203 
178 
148 




R. W. Day 


141 


1914 


R.W.Day 


158 


Jan. 8 


do 

do 

dof 


183 


16 
20 


F.C.Ebert 


150 
165 


22 


do 


151 



a Made by JEioats. 



SAN DIEGUITO RIVER BASIK. 127 

e measurements of Santa Ysabel Creek near Ramona, Calif ., for 19 12-19 IS — Con. 



Made by- 



height. 



Dis- 
charge. 



Made by— 



Ciage 
height. 



Dis- 
eaige. 



1916. 

Apr. .5 
12 
19 
25 

May 2 
9 
16 



June 6 
13 
20 

July 11 
18 

Aug. 10 

Oct. 7 
17 



18 



1917. 
Jan. 19 
21 





W. J. Isbell. 




...do...... 






...do 

...do 

...do 

...do 

.do 






...do 

...do...... 

...do 

.do. .. 






...do 

...do 

F. C. Ebert 




1 


>Y. J. Isbell . 




3. L. R. Case 

...do 

W. J. Isbell . 






shell and McClung.... 
F.C. Ebert. -- 


D. A. McClui 
McClung and 
D. A. McClm 
VIcClung and 

F.C. Ebert. 


ig 


Case 

Case.'.".";'. 



Feet. 
2.14 
2.02 
1.90 
1.66 
1.66 
1.52 
1.37 
1.33 
1.24 
1.15 
1.08 
1.00 
.87 
.79 
.71 
.58 
.65 
.64 
.42 
1.64 



2.56 
2.18 



Sec.-ft. 
126 
139 
90 



164 
102 



1917. 
Feb. 13 

18 

27 

Mar. 8 

9 

21 

28 
Apr. 13 

18 
May 21 
June 8 

29 
Aug. 20 
Sept. 4 
Oct. 4 
Nov. 19 
Dec. 23 

31 

1918. 
Mar. 8 
14 
Apr. 1 
May 5 
Aug. 12 
29 



D. A. McCliuig 

F.C. Ebert 

D. A. McCliuig... 

MeClung and Dean 

F.C. Ebert 

D. A. McOlung 

F.C. Ebert 

MeCIung and EoUey . . . 
McGlashan and Ebert.. 

F.C, Ebert 

D. A. McClung 

do 

McClung and Gavin 

McClung and Campbell 

T.P.Ellis 

McClung and DeVenelle 

D. A. McClung 

F.C. Ebert 

F.C. Ebert 

do 

D. A. McClung 

F.C. Ebert 

D. A. McClung 



1.78 
1.76 
2. 45 
2.34 
2.33 
2.17 
2.02 
1.78 
2.06 
1.S2 
1.77 
1. 55 
1.40 
1.29 
1.25 
1.34 
1.47 
1.48 



2.16 
2.38 
2.65 
2.41 
2.08 
2.10 



Sec. -ft. 
27 
80 
145 
61 
66 
52 
42 



4.5 
6.4 



104 

131 

. 32 

15 

1.2 

.5 



128 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Daily 



e, in second-feet, of Santa Ysabel Creeh near Ramona, Calif., for 1912- 
1918. 



Day. 


Feb. 


Mar. 


Apr. 


May. 


Juno. 


July. 


Aug. 


Sept. 


1 


1912. 






9.5 
17 

9.5 
14 
17 

55 
29 
21 
31 

278 

54 
52 
182 
69 
44 

38 
25 
18 
14 
11 

19 
21 
16 
16 
13 

44 
55 
36 
45 
122 
73 


59 
52 
43 
40 
40 

36 
30 
37 
42 
45 

218 
252 
185 
168 
133 

114 
89 
85 

75 
66 

59 
53 
47 
43 
41 

40 
46 
40 
38 
36 


34 
34 
34 
31 
31 

30 
45 
92 
106 
80 

68 
58 
50 
40 
34 

30 
25 
24 
22 
20 

20 
20 
20 
20 
19 

20 
20 
19 
18 
18 
16 


14 
14 
14 
12 
12 

12 
12 
11 
10 
11 

11 
11 
11 
12 
11 

11 
9 

7.4 
7.0 
6.6 

6.2 
6.2 
6.6 
6.6 
6.2 

5.0 
4.5 
4.0 
5.4 
7.0 


4.2 
4.8 
6.6 
, 9 
5.8 

4.5 
4.2 
3.8 
3.0 
2.8 

2.0 
2.0 
2.2 
2.0 
2.0 

1.3 
1.8 

7.4 
4. -8 
2.4 

1.8 
1.3 
1.0 
1.0 
1.0 

.8 
.8 
1.0 
1.3 
1.6 
1.6 


1.3 
1.0 
1.0 

.8 

.3 

.3 
.1 
.1 

.05 
.05 

.1 
.05 
.05 
.05 
.05 

.05 
.05 
.4 
.5 
.5 

.3 
.2 
.1 
.05 
.04 

.04 
.05 
.1 
1.6 
1.3 
1.0 


0.5 
.4 
4 


2 




3 




4 




.6 


5 


4.8 
4.8 

4.8 
4.8 

3.4 
3.1 
3.1 
3.1 
3.1 

3.7 
3.4 
3.1 
3.1 
3.1 

3.1 
3.1 
3.1 
1.9 


6 


6 


7 


.4 


8 


.5 


9 


.6 


10 


.5 


11 


.04 


12 


.04 


13 


.04 


14 


.04 


15 ... 


.04 


16 


.04 


17 .... 


.03 


18 


.02 


19 


.02 


20 


.02 


21 


.03 


22 


.02 


23 


.02 


24 - - 


.02 


25 


.03 


26 


.03 


27 


.02 


28 


.02 


29 


.02 


30 


.03 


31 
















Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1912-13. 
1 


0.05 
.05 
25 
14 
25 

14 
6.5 

4 
4 
4 

2 

2 

2 

1.5 

1.5 

1.5 

1.5 

1 

1.5 

1.5 

1.5 

1.5 

1.5 

2 

2 

2 
2 
2 
2 
2 
2 


1 

1 

2 

2.0 

2.5 

2.5 

2.5 

2 

2 

2 

2 

3 

3 

2.5 

2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
3.5 


4.5 

4.5 

4.5 

4 

3.5 

3.5 
3.5 
3.5 

4 
4 

4 

4 

3.5 

3.5 

4 

4 

4 

4 

3.5 

3.5 

3.5 
3.5 
.3.5 
3.5 

4 

3.5 
3.5 
3.5 
3.5 
3.5 
4 


4 
4 

3.5 
3.5 

4 

3.5 
3 
4 
5.5 

8 

5 

5 

5.5 

5.5 

6 

39 
22 
16 
12 
9 

7.5 

7 

7 

6.5 

6 

6 

5.5 

6 

6.5 

6 

6 


6 

5.5 
5.5 
5.5 

7.5 

11 
9 
21 
11 

8.5 

7.5 

7.5 

7 

7 

7.5 

8 
7 
7 
7 
8.5 

16 

118 
28 
24 
81 

58 
123 

67 


40 
33 
30 

28 
28 

26 
25 
21 
19 
19 

19 
39 
39 
30 
25 

21 
19 
19 
20 
30 

25 
22 
20 

72 
49 

39 
33 
32 
27 
26 
25 


24 
30 
27 
24 
21 

19 
18 
17 
16 
15 

15 
15 
14 

18 
12 

10 
10 
16 

18 
14 

14 
13 
13 
11 
10 

9.5 
9.5 
9.5 
9.5 
9.5 


10 

9.5 
10 

9 

9 

8 

8 

8.5 

9 

8 

8 
8 

7 
7 
7 

6 
6 
6 
6 
6 

6 

6 

5.5 

5.5 

5.5 

5 

5.5 

7.5 

9 

6 

5.5 


5.5 
5.5 
5.5 
4.5 

4 

4 

3.5 

3.5 

3.5 

3.5 

3 

3 

2.5 

2.5 

2 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 

1.6 

2 

1 

1 


0.5 
.5 
.5 
.5 
.5 

.3 
.2 

.1 
.05 
.05 
.05 
.05 

.05 
.0 
.0 
.05 
.05 

.1 
.1 
.4 
.5 
.2 
.2 


0.2 
.2 
.2 
.2 
.1 

.1 
.1 
.1 

!i 

.1 
.1 
.1 
.1 
.1 

.1 
.1 
.1 

.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 

!l 


0.1 


2 


.1 


3 


.3 


4 


.3 


5 


.3 


6 


.3 


7 


.3 


8 


.3 


9 


.3 


10 


.3 


11 


.3 


12 


.3 


13 


.2 


14 


.2 


15 


.2 


16 


.2 


17 


.2 


18 


.2 


19 


.2 


20 


.2 


21 


.1 


22 


.1 


23 


.1 


24 


.1 


25 


.1 


26 ,. 


.1 


27 


.1 


28 


.1 


29. . 


.1 


30 




.1 


31 















SAN" DIEGUITO RIVER BASIK. 



129 



BoiUy discharge, in second-feet, of Santa Ysabel Creek near Ramona, Calif., for 1912- 
1918 — Continued. 



Day. Oc1 



Apr. 



May. \ June 



July. 



2.5 
2.5 
3 
13 



.3 
2.8 

18 

4.6 
3.4 

2.6 
2.4 
2.4 



2.5 
2.5 
2.5 
2.5 

2.5 

2 

2 

1.5 

1.5 

1.5 

2 
2 



2.5 
2.5 
2.5 
3 



5 

4.5 
5 
6.5 



4.6 
4.6 
4.3 
3.8 

4.0 



4.0 
3.8 
4.3 

5.2 
10 
7.0 
5.5 
5.5 



12 
9.0 
10 

9.5 
8.0 
8.5 
6.7 
6.4 

7.0 
7.0 
7.0 

6.7 
5.8 
6.7 



13 

26 

785 

1,140 

208 

101 



5.8 
5.8 
5.8 
7.0 



5.8 
5.5 
4.9 
4.6 

5.5 
25 
13 
10 
19 

17 
13 
21 
915 

780 
255 



24 
19 
685 
255 

1.490 
'440 
285 
210 

155 

122 

38 
81 



151 
460 
365 
170 



76 

67 

62 

1,080 

1,250 
510 
270 
230 
185 

180 
190 
135 
120 
203 



152 
136 

150 

278 

168 
142 
132 



628 
470 
375 
850 

438 
350 
283 
255 
220 

190 
170 
160 
140 
135 

125 
120 
225 
145 
130 

120 
110 
110 
103 
100 



10 
13 
22 
14 
12 

11 
9.5 
8.0 
9.0 
6.5 

8.0 
8.5 
8.0 



6.5 
6.0 
6.0 

5.0 
4.5 
4.5 
3.0 
2.0 



9 
10 
9.5 

9.5 

9 



142131°— 21— W3P 447- 



130 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORISriA. 

Daily discharge, in second-feet, of Santa Ysabel Creek near Ramona, Calif., for 1912^ 
iW^— Continued. 



3.9 
3.3 
3.6 
3.3 

2.6 

2.0 
1.6 
2.0 

1.8 



3.3 
3.6 
3.3 
4.2 
4.5 

4.2 
3.3 
3.3 
2.4 
214 

2.0 
2.4 
2.8 
2.8 
3.3 

2.6 
2.4 
1.4 
1.4 
1.8 
2.4 



Nov. 


Dec. 


2.4 


6.5 


3.3 


7 


3.9 


7 


4.2 


38 


4.2 


34 


7 


11 


8.5 


9 


7.5 


7.5 


8 


7 


10 


7 


9 


7.5 






7 


7 


6 


12 


5.5 


42 


6 


13 


6 


11 


5.5 


11 


5.5 


9 


5.5 


&5 


5.5 


9 


5.5 


8.5 


6 


9 


6 


9 






6 


' 


6 


8 


6 


7 


6 


7.5 


6 


11 


6.5 


21 




20 


11 


1 
12 


11 


18 


11 


25 


12 


20 


15 


16 


15 


17 


14 


15 


13 


11 


13 


12 


12 


12 


12 


12 


12 


15 


11 


15 


11 


9 


11 


10 


12 


11 


11 


12 


11 


12 


13 


13 


15 


14 


14 


16 


13 


15 


13 


12 


14 


260 


15 


102 


15 


40 


15 


35 


15 


36 


12 


39 


11 


48 




55 J 



55 
81 

664 
6,060 
7,420 
3,680 
2,110 

865 
560 
450 
400 



611 
14, 100 
9,740 
2,540 
1, 160 

865 



30 
37 

101 ; 
50 ' 
83 I 

170 ! 

140 I 

116 
80 
50 
50 
47 



Feb. 


Mar. 


754 


300 


694 


290 


666 


240 


666 


230 


612 


255 


517 


215 


459 


200 


382 


190 


343 


165 


320 


160 


320 


150 


309 


165 


298 


150 


277 


148 


258 


160 


258 


150 


249 


150 


240 


145 


224 


150 


210 


170 


210 


190 


198 


180 


187 


210 


182 


180 


190 


165 


205 


150 


210 


165 


245 


158 


320 


165 




151 




145 


25 


95 


30 


80 


32 


70 


28 


80 


26 


75 


25 


70 


26 


65 


27 


60 


25 


65 


26 


110 


25 


70 


27 


60 


27 


60 


25 


60 


25 


60 


25 


60 


80 


60 


90 


55 


100 


50 


125 


47 


120 


48 


700 


49 


1,130 


49 


205 


50 


235 


47 


170 


43 


135 


41 


115 


40 




36 




39 




40 



Apr. 



140 
135 
130 
125 
120 

125 
115 
105 
110 
105 

110 
139 
115 
105 
110 

105 
100 
95 



235 

128 



34 
33 
32 

32 

47 
40 
47 
39 



May. 


June. 


67 


38 


65 


38 


65 


37 


65 


37 


65 


36 


65 


36 


60 


35 


60 


30 


55 


30 


55 


30 


56 


25 


56 


25 


56 


25 


56 


25 


57 


25 


57 


26 


55 


26 


55 


27 


60 


27 


55 


27 


55 


27 


55 


26 


50 


26 


45 


25 


45 


24 


45 


24 


45 


23 


40 


22 


40 


22 


40 


21 


39 




33 


29 


33 


28 


33 


23 


29 


21 


29 


20 


30 


20 


34 


20 


30 


19 


34 


18 


32 


18 


29 


16 


26 


16 


25 


15 


23 


13 


22 


11 


22 


10 


18 


9.5 


38 


8.5 


39 


8.5 


33 


8 


33 


8 


32 


7.5 


32 


7 


48 


6.5 


71 


7 


45 


6.5 


36 


6.5 


32 


6.5 


33 


7 


32 
32 


7.5 



!. July. 



4.8 
4.5 
4.0 
4.0 

4.0 
4.5 
4.2 
4.0 
4.0 

3. J 
4.0 
4.2 

8 



o. o 
6.5 
5.5 



SAN DIEGUITO EIYEK BASIN. 



181 



Daily discharge, in second-feet, of Santa Ysabel Creel, near liamona, Calif ., for 19 12- 
19i,?— Continued, 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1917-18. 
1 


1.5 
1.4 
1.4 
1.4 
1.4 

1.4 
1.4 
1.6 
1.4 
2.0 

1.8 
2.9 
3.0 
3.7 
5 

5.5 
4.7 
4.0 
2.3 
2.2 

2.2 
2.2 
2.3 
2.4 

2.6 

2.8 
2.6 
2.4 
2.6 
2.6 
2.2 


2.2 
2.2 
2.0 
2.3 
2.4 

5.5 
19 
13 

8 

5.5 
5.5 
.5.5 
.5.5 
5.5 

5.5 

5 

4.0 

2.6 

2.3 

2.6 
2.9 
4.4 
5 

5 

5 
5 

5 
5 

5 


4.7 
4.4 
4.7 
4.2 
4.2 

4.4 

5 

4.4 

4.0 

4.7 

4.7 
5 
5 

5.5 
5. 5 

5 
5 
5 
5 
5.5 

5 
4.7 

4.7 
4.7 
5.5 

6 
6 
6 
6 
6 
6.5 


6 
6 
6 
6 
6.5 

6 
6 
6 

6.5 

6.5 
6.5 

54 ■ 

17 

10 

10 
9 

8.5 
7.5 

7.5 

7 
6 
7 
15 

48 
31 
18 
12 
12 
12 


12 

11 

10 
9.5 
9.5 

8.5 

9.5 

9.5 

9 

7.5 

7 

7.5 

8 

8.5 

8.5 

9 

9.5 
50 
29 
22 

17 
60 
31 
20 

22 

20 
17 

15 


14 
13 
11 

9.5 

9 

13 
128 
121 

22 

14 

580 
1,.300 
420 
131 
90 

60 

55 

50 
140 
185 

90 

75 
70 
65 
50 

42 
41 
43 
42 
34 
32 


31 
32 
32 
30 

28 

27 
27 
25 
22 
23 

23 
23 
25 
23 
21 

20 
. 18 
16 
13 
13 

20 
18 
18 
15 
15 

14 
15 
13 
14 
12 




12 
12 
12 
12 
12 

12 
12 
12 
16 
14 

13 
12 
12 
12 
10 

9 

7.5 
6.5 
6 

6 

5.5 

4.6 

5 

4.6 

4.6 

5 

4.6 

6.5 
33 
12 

4.2 


3.6 
3.3 
3.3 
2.7 

2.4 

2.1 
2.1 
1.8 
1.5 
1.3 

1.1 
1.0 
1.1 

1.8 
2.7 

2.4 
2.1 
1.8 
2.1 
2.4 

2.4 
2.4 
2.4 
2.7 
3.0 

3.3 
3.6 
3.0 
2.4 

1. S 


1.8 
1.5 

1.8 
2.1 

1.8 

2.1 
2.1 
1.8 
1.5 
1.5 

1.1 
1.0 
1.0 
1.1 
1.1 

1.0 
1.1 
1.3 

1.5 
1.8 

1.5 

1.8 
1.5 
1.5 
1.5 

1.3 
1.1 
1.1 
1. 1 

.9 

.8 


0.9 
1.0 
1.0 
1.1 
1.3 

1.5 
2.4 
3.6 
1.3 
1.1 

1.3 
1.1 
1.3 
1.1 

1.5 

1.8 
2.7 
1.8 
2.2 
1.5 

.9 
.4 
.4 
. 4 
.2 

.2 
1.2 

.5 
.4 

.7 
1.8 


1.8 


2 


1.5 


3 


l.l 


4 


1.0 


5 


.9 


6 


.8 


7 

8 


1.0 
1.1 


9 


1.1 


10 

11 


1.1 
.9 


12 . .. 


.8 


13 


.8 


14 


.8 


15 


1.3 


16 


1.8 


17 


1.8 


18 


2.1 


19 


1.3 


20 


1.1 


21 


.8 


22 


.7 


23 


.5 


24 


.9 


25 


1.1 


26 

27 

28 


1.1 

l.l 
1.1 


29 


1.0 


30 


1.0 


31 





Note. — Daily discharge determined as foiiows: 1912, Feb. 5 to Sept. 30, 1912, from rating curves well 
defined above 3 second-fot^t. 

1912-13: Oct. 1, 1912, to June 3, 1913, from well-deflned rating curves; June 4 to Sept. 30, by shifting- 
control method and interpolation between measurements. 

1913-14: Oct. 1 to Nov! 12, 1913, estimated from measurements; very little change in stage; Nov. 13, 
1913, to Sept. 30, 1914, when shifting-controi method was used, except Mar. 28 to May 1, 1914, from well- 
defined rating curve. 

1914-15: Oct. 1, 1914, to Feb. 11, 1915, from well-defined curve; Feb.12-19, 1915, by shifting-control method; 
Fel). 20 to May 5, from an average rating curve well defined; May 6-31, 1915, by shif ling-control method; 
June 1 to Sept. 30, from well-defined rating curve. 

1915-16: Oct. 1 to Dec. 31, 1915, from well-defined rating curve; Jan. 1-15, 1916, gago-hcight record lost; 
discharge estimated from record obtained at Mesa Grande; Jan. 16-31, computed from hydrograph: Feb. 
1-24, well-defined rating curve; Feb. 25 to Sept. 30, from fairly well defined rating curves covering .'^iiort 
periods, computed by shifting-control method and by interpolation ])etween discharge mea.surements. 

1916-17: Oct. 1 to Dec. 7, 1916, estimated from discharge measurements and record obtained at Mesa 
Grande; Doc. 24, 1916, to Jan. 2, 1917, Jan. 19 to Apr. 15, and May 18-23, from fairly well-defined rating 
curves applicable for short periods and by shifting-control method. Jan. 13, 1917, gage not read; discharge 
estimated. 

1917-18: Two rating curves used, Oct. 1, 1917, to Mar. 11, 1918, are fairly well defined. Discharges Mar. 
12-13 and 15-25 computed from record obtained at Mesa Grande; remainder of year computed from fairly 
well defined curves covering short periods. Record Mar. 12-25, poor. 



132 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA, 

- Monthly discharge of Santa Ysahel Creek near Ramona, Calif., for 1912-1918. 



Month. 


Discha 


rge in second-feet. 


Run-off 
(total in 




Maximum. 


Minimum. 


Mean. 


acre-feet). 


1912. 


4.8 
278 
252 
106 
14 
9 

1.6 
.6 


1.9 
9.5 

30 

16 

4 
.8 
.04 
.02 


3.62 
46.7 
75.0 
35.4 
9.22 
2.90 
.37 
.19 


180 


March 


2,870 


April 


4,460 
2,180 


May. 




549 


July 


178 




22.8 




11.3 






The period . . . 








10.. 500 












1912-13. 
October 


25 
3.5 
4.5 
39 
123 
72 
30 
10 
5.5 
.5 
.2 
.3 


.05 

1 

3.5 

3 

5.5 
19 

9.0 

5.0 

1 

.05 
.05 


4.29 

2.38 

3.77 

7.68 

24.3 

29.0 

15.4 

7.19 

2.00 

.19 

.10 

.19 


264 




142 


December 


232 




472 


February 


1,350 
1,780 


March 


April 


916 


May 


442 




155 


July 


12 




6 


September 


11 








123 


.05 


7.99 


5,780 




1913-14. 
October 


.1 

28 
18 
1,149 
1,490 
94 
64 
32 
22 
1.5 
.1 
.1 


!i 

1.5 
4 
19 
25 
14 
11 
2.0 
.1 
.1 
. 1 


.10 

3.33 

4.53 

82.4 

153 

40.5 

27.2 

17.9 

8.77 

.32 

.10 

.10 


6 




198 




279 


January 


5,070 




8,500 


March 


2,490 
1 620 




May 


1 ; 100 




522 


July. 


20 


August . 


6 


September 


6 






The year 


1,490 


.1 


27.3 


19,800 




1914-15. 
October 


1.6 
18 
12 
915 
1,250 
412 
412 
850 
74 
26 
110 
5.5 


.1 
.2 

3.8 
4.6 

62 

58 

38 

73 

27 
9 

2.5 
1.5 


.57 
2.10 
6.45 
70.2 
259 
122 
81.6 
221 
47.0 
15.6 
9.26 
3.90 


35 




125 


December 


397 


January 


4,320 




14,400 
7, 500 


March . 


April 


6,860 


Mav -^ 


13,600 
2,800 


June 


July 


959 


August 


569 


September 


232 






The year 


1,250 


.1 


68.7 


49,800 




1915-16. 
October . . . 


4.5 
10 
42 
14, 100 
754 
300 
140 
67 
38 
20 
12 
10 


1.4 
2.4 
6.5 
7 
182 
145 

70 

39 

21 

12 
8 
8 


2.75 
6.05 
12.2 
1,690 
345 
182 
102 
54.3 
28.2 
14.9 
10.5 
8.6 


169 




360 


December 


750 


January 


104,000 




19,800 
11,200 
6,070 






May . - 


3,340 




1,680 
918 




August 


646 


September 


512 








14,100 


1.4 


206 


149, 000 







SAN DIEGUITO RIYEE BASIK. 133 

Monthly discharge of Santa Ysahel Creek near Ramona, Calif., for 1912-1918 — Continued. 



Month. 


Discharge in second-feet. 


Run-off 
(total in 




Maximum. 


Minimum. 


Mean. 


acre-feet). 


1916-17. 


50 

15 

260 

170 

1,130 

110 

235 

71 

29 

8 

5 

55 


9 

11 
9 

21 

25 

36 

26 

18 
6.5 
3.8 
1.3 
.5 


16.9 
12.8 
30.3 
57.5 
130 
59.2 
46.4 
32.8 
13.3 
5.66 
2.66 
3.15 


1,040 




762 




1.860 


January. . 


31540 




7,220 


March... 


3,640 


April. 


2,760 


Mav 


2,020 




791 


July 


348 




164 


September . - . 


187 






The j'ear . . 


1,130 


0.5 


33.6 


24,300 






1917-18. 
October 


5.5 

19 
6.5 

54 

50 
1,300 

32 

33 
3.6 
2.1 
3.6 
2.1 


1.4 
2.0 

4.0 

6 

7 

9 
12 

4.2 

1.0 
.8 
.2 


2.48 
5.13 
5.06 
12.0 
16.3 
127 
20.9 
9.99 
2.32 
1.42 
1.25 
1.11 


152 




305 


December. 


311 




738 


February . . . 


905 


March 


7,810 


April 


1,240 


Mav.... 


614 




138 


July.... 


87.3 




76.9 


September 


66 






The year 


1,300 


.2 


17.2 


12,400 







SAKTA YSABEL CHEEK NEAR ESCONDIDO, CALIF. 

Location. — In SW. I sec. 31, T. 12 S., R. 1 E., at mouth of canyon at upper end of 
San Pasqual Valley, about 10 miles southest of Escondido, San Diego County. 
Roden Canyon Creek enters 1-| miles above and Santa Maria Creek 4 miles below 
station. 

Drainage area. — 128 square miles (measured on topogTaphic maps). 

Elevation. — About 500 feet above sea level. 

Records available. — ^January 1, 1906, to September 30, 1912. 

Gage. — Inclined staff fastened to large boulder on left bank at mouth of canyon. 
Original datum was maintained. 

Discharge measurements. — ^Made from cable at gage or by wading. 

Channel and control. — Sand; very shifting. 

Extremes oe discharge. — 1906-1912: Maximum stage recorded March 24, 1906 
(discharge, 8,000 second-feet); no flow for at least a few days each season from 
1908 to 1912. 

Diversions. — ^No large diversions above the station. . East and West San Pasqual 
ditches divert below the station. 

Regulation. — None. 

Accuracy. — Stage-discharge relation not permanent. Several fairly well defined 
rating curves were developed covering short periods. Gage read to hundredths 
once daily. Daily discharge ascertained by applying daily gage height to rating 
tables by shifting-control method and by interpolation between discharge meas- 
urements. Records fair, the degree of accuracy depending principally on the 
number of discharge measurements obtained during the season. 



134 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Discharge measurements of Scmta i^saheJ Creel, neur Escondido, Calif., for l&OS^Ml^'. 
[By W. V. Haidy, F. C. Ebert, and others.] 



Date. 


Gao:e 
height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge. 


1905. 
Nov. 21 


Feet. 


Sec.-ft. 
4.5 
41 
10.4 

4.2 
13. 5 
17.8 
25 
44 
28 
158 
132 
5, 300 
3, 240 
2,040 
916 
870 
900 
713 
183 
116 
151 
88 
25 
3.7 
2.6 
15 

10.8 
10 

60 
127 
101 
311 
242 

67 

55 

97 
111 
177 
146 

95 

82 

61 

58 

40 

42 

28 

35 

22 
5.7 

12 

10 

15 

11 
10 
10 
14 
71 
44 
43 
60 
42 
37 
41 
91 
72 
30 
26 


1908. 
Mar. 25.. . 


Feet. 
1.92 

1. 91 
1.91 
1.87 
1.86 
1. 85 
1.8') 
1.84 
1.82 
1.78 
1.77 
1. 77 
1.77 
1.73 
1.72 
1 61 
1.70 
1.77 
1.80 
1.78 
1.83 
1.80 

1.87 
.76 
.54, 
.90 
.78 
.68 
1.10 
1.02 
.84 
.87 
.98 
.93 
1.15 
1.25 
1.28 
1.32 
1.80 
1.70 
1.60 
l.,55 
1.51 
1.40 
1.40 
1.35 
1.28 
1.23 
1.20 
1.22 

.60 
.51 

'. 60 
.67 
.69 
.72 
.76 
.80 
.96 
.94 
.90 
.90 
.86 
.87 
.84 
.75 
.79 
.77 
.74 
.80 


Sec.-ft. 
23 


28 


3. 72 
3. 55 

3.56 
3. 55 
3.57 
.3.64 
3.70 
3.70 
3. 75 
3.52 
4.00 
2.65 
2.00 
1.00 
.85 
.70 
.50 
1.00 

1. 4,5 
1.82 
2.18 

2. ,35 
2.45 
2. 46. 
2, 54 
2.64 
2.70 

2.80 
2. 05 
1.90 
2.20 
2.30 
1.90 
1.99 
2.05 
2.18 
2.10 
2.00 
1. 95 
1.90 
1.90 
2.00 
2.02 
1.99 
1.99 
2.01 
2.06 
2.02 
2.02 
2.28 
2.28- 
2.32 

2.- .30 
2.30 
2.27 
2.30 
2.50 
2.40 
2.24 
2.19 
2.12 
2.06 
2.05 
2.29 
2.10 
1.95 
1.98 


31 


25 


Dec. 21. . 


Apr. 7 

12. 


23 




18; 


1906. 
Jan. 10 


18 

25.. . 


14 
34 


30 


29 

May 4 


1& 


Feb. 8 


21 


11 


14. 


20. 




20 

22 


10 




It 


]•" 


29 


9i2 


23 


June 4 


8.2 


26 


June 10.. . 


.5.6 


26 


14 


4.9 


26. . 


.July 6 

Nov. 11.. . 


.31 


27 


1. 8 


27 


26 


5. 6 


27. . . 


Dec. 3 


8.1 


28 


11 


3.8. 


Apr. 14 

25 


16 


4.8 


24 


.5.4 


30 

Mav 12 

June 24. 


1909. 
.Tan. 19 


11 


Aug 10 


28 


156 


0<'t. 3 . 


Feb. 1 


65. 


Nov. 30 


4 


173 


Dec. 7 


,5 


163 


20 


6 . .. 


lOI 




8 


325 


1907. 


8 


284 


Jan. 1 


' 9 


260 


22 


9 


238 


28.. . 


17 


129 


30 


28 


154 


30 

Teh. 12 


Mar. 4 

13 


96 

86 


16 


' 18 


82 


21 


, 26 


89 


Mar. 12 


' 27 


342 


15 


27 


265 


Apr. 2 

6 


! 28 


214 


1 28 


288 


15 


1 28 


191 


19 


1 29 


173 


May 4 

10 


1 Apr. 5 


115 


i 10 


loa 


21 


' 15 


63 


24 


' 24 


44 


June 4 


May 24 


31 


7 


Dec. 23 


83 


17 

July 19.... 

Dec. 13 


1910. 
Jan. 11 


105 


21 


31 


66 


29 


Feb. 11 


44 




19 


46 


1908. 
Jan. 4 


22 ,.-.. 

23 


53 
56 


13 


Mar 6 


31 


18 


10 


34 


23 


22 


39 


29 


31 

Apr. 4 


57 


30 


42 


Feb. 8 


8^ 


42 


17 


15 


34 


21 


28 

1 Mav 5 .. .. 


18 


26 


20 


Mar. 2 


1 " 16 


10 


5 


30 


4.2 


6 


June 2 


5.7 


14 


8 


3.3 


19 ... 


30 


1.3 




Nov. 25 


2.9 



SAi^ DISGUIXO PvIYEPv BASIisT. 



135 



Discharge measurements of Santa Ysahel Creeh near Esco^idido. Calif., for 1905-1912 — 

Continued. 



Date. 


Gage 
height. 


charge. 


]>ate. 


Gage 
height. 


Dis- 
charge. 


Feb 7 


1911. 


Feet. 
0.80 
.87 
.48 
.25 
.10 
.06 

.12 
.14 

.47 


140 

48 
17 
2.4 

<i. 2 

3.7 

4.2 

47 


1912. 
Mar. 8 


Feet. 

0.26 

.12 

.75 

.18 

.10 

.00 

-.06 

-.14 

-.19 

-.33 


Sec.-ft. 
22 


Mar. 5 


Apr...l 


49 


Apr 11 


12 


266 


May 10 . .. 


22 


62 




1 Mav 8 


53 


Oct. 15.. 


; 15 


36 




1912. 


1 23 


21 




June 22 


5,1 


Jan 22 


July 13 


1 


Feb 8 


Aug. 3 




Mar. 6 











a Estimated. 
Daily discharge, in second-feet, of Santa Ysahel Creek near Escondido, Calif ., for 1907-1912. 



Day. 



21.. 
22.. 



Oct. 



Nov. 



Dec. 



Jan. 



100 
145 

265 



280 
200 
200 

200 
250 
500 
200 



120 
115 

110 
105 
101 
130 
276 
125 



Feb. 


Mar. 


Apr. 


May. 


Jane. 


July. 


Aug. 


110 


50 


170 


G5 


32 


15 


5 


110 


50 


177 


64 


31 


15 





100 


50 


200 


62 


29 


14 


5 


98 


75 


180 


61 


28 


14 


5 


95 


250 


160 


60 


30 


13 


5 


90 


175 


146 


60 


32 


13 


5 


85 


150 


140 


59 


35 


12 


5 


80 


125 


140 


59 


34 


12 


5 


80 


110 


125 


58 


32 


11 


5 


75 


100 


115 


58 


31 


11 


5 


70 


100 


no 


-^ 


30 


10 


5 


67 


97 


no 


br, 


28 


10 


5 


60 


100 


105 


53 


27 


9 


5 


60 


100 


100 


51 


26 


9 


5 


60 


111 


95 


50 




8 


5 


62 


110 


100 


48 


23 


8 


5 


60 


no 


90 


46 


22 


7 


5 


60 


no 


85 


45 


22 


7 


5 


55 


no 


82 


43 


21 


6 


5 


0.) 


175 


80 


42 


21 


6 


5 


55 


175 


79 


40 


20 


5 


5 


80 


ISO 


78 


40 


20 


5 


5 


70 


170 


76 


41 


19 


5 


5 


60 


160 


75 


42 


19 


5 


5 


50 


290 


74 


41 


18 




5 


60 


17,, 


72 


40 


18 


5 


5 


60 


200 


70 


38 


17 


5 


5 


60 


185 


70 




17 




5 




170 


08 


36 


16 


5 


5 




160 


67 


34 


16 


5 


5 




160 




33 




5 





Sept. 



136 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second- feet, of Santa Ysabel Creek near Escondido, Calif., for 1907- 
1912— Gontmued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June, 


July, 


Aug. 


Sept. 


1907-8. 
1 


6 
6 
6 
6 
6 

8 
6 
6 
6 
6 

6 
6 
6 
6 

15 

8 

15 
12 
10 

10 
10 
12 
12 
10 
10 

.1 
.1 
.2 

.0 

.5 

.5 
.2 
.1 
.1 
.0 

.0 
.2 

.5 
.2 

.5 

.5 
1.0 
2.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

."5 
lio 

1.0 
1.0 


10 
9 
9 
9 
9 

10 
10 
10 
10 
12 

10 
10 
10 
10 
12 

12 
12 
12 
10 
10 

10 
10 
10 
10 
10 

10 
10 
10 
10 
10 

1.0 
1.0 
1.0 

1.0 
1.5 

1.5 
1.5 
1.6 
1.6 
1.7 

l.S 
1.8 
1.8 
1.8 
1.8 

1.8 
2.0 
4.0 
4.0 
3.3 

3.3 
3.3 
5.0 
5.0 
5.0 

5.0 
5.0 
3.0 
5.0 
5.0 


10 
10 
10 
10 
10 

10 
15 

15 
15 
15 

12 
12 
12 
12 
12 

12 
11 
11 
11 

10 

10 
10 

11 
11 

12 

12 
13 
14 
15 
15 
15 

4 
8 
17 

8 
8 

7 
7 
7 
6 
6 

2 
2 
2 
3 

3 
3 
3 
4 
4 

9 
9 

5 

5.4 

5.4 

5.4 
5.4 
5.4 
5.4 
5.4 
5.4 


11 
11 
11 
11 
11 

11 
11 
11 
11 
11 

11 
11 
11 
12 
11 

11 
11 
10 
10 
11 

12 
13 
14 
71 

136 

42 

42 
87 
71 
44 
44 

5 
5 

5 

6 

8 
8 
8 
8 
8 

8 
40 
65 
15 

15 
11 
11 
11 
11 

6,500 

1,000 

200 

160 

160 
320 
156 
110 
90 
85 


48 
43 
146 
56 
50 

46 
48 
67 
77 
80 

51 
54 
65 
61 
56 

59 
60 
45 
43 
42 

42 
40 
47 
41 
37 

37 
37 
44 
46 

65 
65 
65 
173 
153 

101 
135 
360 
250 
270 

310 
410 
490 
290 
190 

120 
130 
130 
130 
90 

800 
220 
210 
200 
185 

175 
165 
154 


47 
41 
42 
82 
82 

72 
54 
51 
49 
46 

43 
41 
38 
30 
35 

33 
22 
25 
26 
21 

23 
20 
20 
22 

23 

30 
47 
28 
25 
26 
25 

140 
125 
110 
96 
95 

94 
93 
92 
91 
90 

89 
88 
80 
85 
84 

S3 
83 
82 
90 
80 

90 
110 
180 
155 
130 

89 
340 
230 
173 
140 
130 


25 
25 
23 
22 
23 

23 
23 
21 
20 
19 

15 
18 
12 
14 
14 

13 
14 
14 
15 
16 

19 
30 
44 
37 
34 

25 
21 
17 
16 
15 

125 
125 
120 
120 
115 

110 
105 
105 
105 
100 

93 
85 
78 
70 
63 

60 
58 
56 
54 
52 

50 
48 
46 
44 

44 

43 
43 
42 
42 

42 


16 
16 
25 
21 
17 

17 
18 
16 
10 
17 

18 
21 
21 
20 
17 

14 
12 
8 
10 
10 

11 
11 
7 
10 
13 

9 
6 
9 
9.2 

5 

41 
41 
40 
40 
39 

39 

38 
38 
38 
37 

37 
36 
36 
35 
35 

35' 
34 
34 
33 
33 

32 
32 
31 
31 
31 

30 
SO 
29 
29 

28 
28 


9 

8 
8 

8.2 
8 

8 
7 
8 
4 
5.6 

5.6 
5 6 
4 

4.9 
5 

5 
3 
5 
5 
5 

4 
4 
4 
3 
3 

3 
2 
1 
3 
3 

27 
27 
27 
26 
26 

26 
25 
25 
25 
25 

24 
24 
24 
24 
24 

24 
22 
22 

22 
22 

22 
22 
22 
22 
22 

22 
22 
20 

18 
14 


0.5 
,6 

1.0 
,2 
.6 

.3 
.4 
.1 
.2 
.0 

.0 
.0 
.1 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 
.0 

22 
22 
22 
14 
14 

22 
22 
14 
14 
14 

14 
14 
14 

8 
8 

8 

8 
14 
14 

4 

3 
4 

8 
4 

4 

8 
14 

8 
8 
8 
8 







































8 
4 

8 
8 
8 

4 

8 
8 
8 
8 

4 

■ 4 

4 

3 

4 
4 
4 
4 
4 

2 
4 
2 

4 
4 

4 
4 
2 

8 
20 





2 


Q 


3 





4 





5 





6 





7 





8 


5 


9 





10 





11 





12 





13 





14 





15 





16 





17 





18 





19 





20 





21 





22 . 





23 





24 





25 





26 





27 





2S 





29 





30 





31 




190S-9. 
1 




2 




3 




4 




5 




6 


14 


7 


14 


8 




9.... 




10 




11 




12 




13 


2 


14 


2 


15 


2 


16 


1 


17 





18 





19 





20 





21 





22 ... 





23 





24 


4 


25 


8 


26 


8 




8 


'/8 


8 


29 


8 


30 


8 


31 





SAN DIEGUITO RIVER BASIN. 



137 



Daily discharge, in second-feet, of Santa Ysabel Creeh near Escondido, Calif., for 1907- 
79i^— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1909-10. 
1 


8 
8 
8 
8 
14 

8 
8 

8 
8 
8 

8 
8 
8 


8 
4 
4 
4 
4 

4 
4 
8 
8 
14 

22 
22 
14 
14 
52 

22 
14 
14 
14 
14 

14 
14 
14 
22 

14 

52 
32 
32 
22 

32 


32 
32 
32 
32 
52 

96 
75 
52 
400 
200 

96 
75 
75 
75 

52 
52 
52 
52 
120 

700 
60 
83 
60 
40 

30 
30 
30 
20 
20 
20 


3,100 
1,320 
1,020 
690 
-390 

170 
155 
155 
140 
125 

105 
105 
105 
90 
105 

340 
170 
105 
100 
80 

70 
65 
65 
65 
65 

65 
65 
65 
65 
65 
66 


64 
62 
60 

58 
56 

54 
52 
50 
48 
46 

44 
44 
44 
45 
45 

45 

46 
46 
46 
48 

50 

53 
56 
58 
54 

52 
53 
49 


45 
41 
39 
35 
33 

31 
31 
32 
33 
34 

35 
35 
36 
36 
36 

37 
37 
37 
38 
38 

38 
39 
40 
40 
40 

42 
51 
90 
70 
54 
57 


50 

47 
44 
42 
42 

42 
42 
42 

45 
42 

42 
62 
60 
62 
56 

49 
48 
47 
45 
40 

33 
29 
19 
21 

22 

22 
23 
18 
18 
18 


19 
19 
20 
20 

2a 

19 
18 
17 
16 
15 

14 
13 
12 
11 
10 

10 
10 
9 

8 

7 

6 
6 

6 

5 
o 

4 
4 

4 




5 
6 
5 

4 

4 
3 

3 
3 

3 
3 
3 
3 
3 

2 

2 
2 


1 

1 
.5 
.5 
.5 

.5 
.5 
.5 






2 




* 


3 






4 






5 






6 






7 






8 






9 






10 .... 








11 








12 




1 


13 








14 ... 








15 








16 








17 








18 . - 








19 


2 








20 


2 








21 








22 








23 








24 








25 








26 








27 








28 






i 


29 




1 


.-$0 






31 


















Day. 


Apr. 


Ma 


y- 


June. 


July. 


Day. 


Apr. 


May. 


June. 


July. 


1911. 
1 




29 
22 
23 
25 
16 

17 
19 
19 
16 
18 

16 
17 
19 
16 
20 


14 
12 
15 
16 
10 

10 
8.9 
9.7 
6.4 
8.1 

9.7 
9.7 
7.3 
6.4 
5.6 


2.4 
2.4 
1.9 
2.4 

1.9 

1.0 


16. 
17. 
18. 
19- 
20. 

21. 
22. 
23. 
24. 
25. 

26. 
27. 
28. 
29. 
30. 
31. 


1 


.n. 


35 
33 
36 
36 
35 

32 
36 
35 
35 
32 

32 
38 
38 
36 
32 


17 
13 
10 
16 
8.9 

9.7 
8.9 

10 

16 

14 

13 


8.1 
8.9 
6.4 
7.3 
7.3 

9.7 
10 
4.8 
5.6 
3.2 

4.0 




2... 









' 


3 










4 










5 








** 


6 










7 








** 


8... . 












9 












10 














49 
52 
47 
36 
44 










12 .... 








10 2. 4 
10 3. 2 1 




13 










14 








.13 
16 
14 


2.4 

2.4 




15 















































"138 SLTRFACE WATER OF PACIFIC SLOPE, SOUTHERT^ CALIFOPvOTA. 

Daily discharge, in second-feet, of Santa Ysahel Creeh near Escondido, Calif., for 1907- 
IQl^—Gontmued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jiine. 


July. 


Aug. 


1911-12, 
1 




1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1,0 
1.0 
1.0 

1.0 
1.0 
1.4 
1.9 
2.4 

2.4 
3.2 
2.4 
1.9 
6.4 

6.4 
5.6 
4.0 
2.4 
2.4 

2.4 
1.9 
1.4 

.1) 
1.4 


2.4 
2.4 
2.4 
3.2 
3.2 

8.1 
10 
8.9 
6.4 
3.2 

4.0 
2.4 
1.9 
1.9 
2.4 

3.2 
4.0 
4.0 
2.4 

2.4 

3.2 

10 

12 
9.7 
8.1 

6.4 
6.4 
7.3 

10 
12 
9.7 


10 
10 
10 
10 
10 

5 
5 
5 
5 
10 

10 
5 

5 
5 
5 

10 
10 
10 
10 

10 

10 
5 
2 
5 
5 

5 
10 
10 
10 
10 

5 


5 
5 
5 
10 
10 

5 
5 
5 

5 
5 

5 
5 
5 

5 
5 

5 
5 
2 
5 
2 

2 
5 
5 
5 
5 

5 
5 
5 
5 


5 

20 
5 
5 
10 

5 
38 
24 
30 
630 

133 
118 
315 
118 
118 

118 
102 
102 
102 
102 

102 
102 

88 
88 
88 

102 
102 
102 
133 
205 
150 


51 
63 
51 
51 

51 

40 
40 
30 
51 

75 

315 
315 
205 

168 
168 

168 
150 
102 

88 
75 

63 
63 
63 
51 
51 

51 
51 
51 
51 
51 


40 
30 
40 
30 
30 

30 
30 

51 
75 
75 

63 
51 
51 
40 
30 

30 
30 
30 
21 

21 

21 
21 
21 
21 
21 

21 
21 
21 
21 
12 
12 


12 
12 
12 
6.5 
12 

21 
12 
12 
12 
12 

12 
12 
12 
12 
12 

12 

6.5 
12 
12 

6.5 

6.5 
6.5 
6.5 
6.5 
6.5 

6.5 
6.5 
6.5 
6.5 
6.5 


6.5 
6.5 
12 
8.5 
6.5 

6.5 
6.5 
6.5 
6.5 
6.5 

1 

6.5 
1 
.6 
6.5 

6.5 
1 

6.6 
30 
1 

1 
1 
1 
1 
.6 

.6 
.6 
.3 
.6 
.3 
.3 


3 


2 




.3 


3 . . 




.0 


4 




.0 


5 




.0 






.0 






.0 


8 ! 


9 






10 






11 






12 - 




13 






14 






15 


0.2 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 
.05 




10 




17 




IK 




19 




20 




21 




22 




2',i 




24 

25 




26 




27 




28 




29 




30 




31 









Note. — Daily discharge determined as follows: 1907 to 1911 from rating curves cohering short periods and 
by shifting-control method. 

1911-12: Oct. 16 to Nov. 12, 1911, estimated; Jan. 1 to Mar. 9, 1912, from fairly well-deMned rating curves; 
Mar. 10 to Aug. 2, 1912, from rating curve well defined above 10 second-feet. 

Stream dry on davs for which discharge is not given except Jan. 1 to Apr. 10, 1911, when no record was 
obtained. Maximum discharge, Jan. 22, 1909, v/as 6, 800 second-feet. Maximima discharge Jan. 1, 1910, was 
3,950 second-feet. 



SAK DIEGUITO RIVER 3ASIK. 



139 



Monthly discharge of Santa Ysahel Creel' n<:ar Escondido, Calif ., for 190G-1912. 
[Draiiiatje area, 12S square lnile^.] 





Discharge in second -feet 




Rut 


-oil. 


Month. 


Maximtun. 


Minimum. 


Mean. 


Per 
square 
mile. 


Deplli in 

inches on 

drainage 

area. 


Total in 
acre-feet. 


190t). 


83 
95 
8,000 
400 
90 
35 
30 
6 
4 


2 

8 
29 
102 
35 
23 

4 
3 


11.4 
30. 5 

G33 

221 

i;9. 7 

2^.4 
12.4 
4.2 
3.1 


0. 089 
.238 
4.94 
1.73 
. 545 
.222 
.097 
. 033 
.02-1 


0.10 
.25 
5. 70 
1.93 

.25 
.11 
.04 
.03 


701 




1,69(1 
38, 90O 


March " 


April 


13,20(> 


May 


4, 2m 


June 


1,690 
762 


July 


August 


258 


SeptemVer 


184 






Thp poriod 









61,700 












1906-7. 
October 


15 
21 
500 
110 
290 
200 
65 
35 
15 
5 
6 


3 

11 
4(1 
50 
50 
07 
33 
16 

5 


4.7 

9.fi 
12.4 

1S5 

72.4 
188 
ION 

49 

24. (i 
8.t) 


.037 

. 075 

097 

1.21 

. rwvti 

1.08 
.8-14 
. 383 
.192 

. 0*i7 
.039 
. 043 


.08 
.11 

1.40 
.59 

1.24 
.94 
.44 
.21 
.08 
.04 
. 05 


2.,9 


November 


571 


December 


762 


Jamiarv 


9,5;» 


Febmarv 


4,020 




8,480 


April 


6,4;w 


mS".. ...:.: :.:.;.:.: 


3,010 




1,400 


July 


■ 521^ 




307 


September . 


327 






The year 


500 


3 


49.4 


.ZH\ 


5.22 


35,700 


1907-S. 

October.. 

November 


15 
12 
15 
136 

14(i 
82 
44 
25 
9 
1 




G 

10 
10 
37 
20 
12 
5 
1 


a 




8.1 
10.2 
12 

25.0 
54.1 
37.7 
20. 9 
13.7 

S.OO 
.129 
.0 


. 0(33 
. OSO 
.093 
.2tt<3 
.123 
.294 
. iG3 
. 107 
. 040 
. 0010 
.00 
.00 


.07 
.09 
.11 
.23 
.41) 
.34 
.18 
.12 
.04 
.001 
.00 
.00 


498 
607 


December 


738 


Jannary 


1,570 


February 


3,110 




2,320 
1,240 


April 


May 


842 


June 


301 


July 


8 


August 





ScptfTnbei' 









The ve;v.- 


14fi 





]■,..■, 


. 1-12 


1.64 


11,200 






1908-9. 
October .... 


2 

17 
6, 500 
800 
340 
125 
41 
27 
22 
20 




2 
5 

65 
80 

42 
28 
14 
3 




.603 
2.74 
o.tio 
298 

118 
74.8 
34.5 
23.2 

11.7 

4.;Jo 


.0047 
.■)21 
.044 

2.29 

1.69 
.^>22 
.584 
.270 
.ISI 
. (J91 


.005 
.02 
.05 
2.64 
1.76 
1.06 
.65 
.31 
.20 

. I'v) 

.04 


37 


November 


163 


December 


347 


Januarv 


18,000 


February 


12,000 


March 


7,260 


April 


4,450 


May 


2,120 
1,380 


June 


July 


719 


August 


327 


September 


258 






The year 


P,500 





03. s 


..3)4 


6.^.9 


47,100 






1909-10. 
October 


14 
52 
700 
3,100 
U 
90 
62 
20 

1 




4 
4 
20 
<o5 
44 
31 
IS 
4 
1 





5.S7 
17.1 
90. 2 

aw 

51.0 

41.3 

39.1 

1L4 

2.6 

.16 

.0 

.0 


.134 
.705 
2.34 
.398 
. 321', 

. osy 
. 020 
. 001 
.0 
.0 


.05 
.15 
.81 
?. 70 
.41 
.37 
.34 
.10 
.02 
.001 
.0 
.0 


361 


November. . 


1,020 

5,550 
18, 400 


December 


January 


February 


2,830 
2, 540 


March. . ' 




2 330 


May 


701 


June 


155 


July 


10 


August 





September 











3,100 





46.6 


.364 


4.95 


33,900 

^ 





140 SURFACE V/ATEE OF PACIFIC SLOPE, SOUTHEKN CALIFORNIA. 

Monthly discharge of Santa Ysahel Creek near Escondido, Calif ., for 1906-1912 — Contd. 





Discharge in second-feet. 


Run-off. 


Month. 


Maximum. 


Minimum. 


Mean. 


Per 

square 
mile. 


Depth in 

inches on 

drainage 

area. 


Total in 
acre-fee t. 


1910-11. 
October 





52 
29 
16 
2.4 
.0 
.0 







32 

8.9 

2.4 
.0 
.0 
.0 


0.0 
.0 
.0 
37.2 
15.8 
7.82 
.39 
.0 
.0 


0.0 
.0 
.0 
.291 
.123 
.061 
.003 
.0 
.0 


0.0 
.0 
.0 
.22 
.14 
.07 
.004 
.0 
.0 






November 


December 




-April 11-30.. 


1 480 


May 


'"72 




465 
24 


July... . 







September 









1911-12. 
October 




.0 
.0 

1.9 

5 

2 

5 
30 
12 

6.0 
.3 
.0 
.0 


.032 
2.06 
5.60 
7.65 
5.03 
108 
93.4 
32.6 
9.92 
4.46 
.019 
.0 






2 


November 


6.4 
12 
10 
10 
630 
315 
75 
21 
30 
.3 
.0 






123 


December 






344 


January 






470 


February . 






289 


Ivf arch 







6,640 
6,560 
2,000 


April 






May 




June . . 






590 


July 






274 








1 2 


September . . 

















The veor 


630 


.0 


22.5 






16,300 









SAH BIEGTJITO RIVER AT BERNARDO, CALIF. 

Location. — In San Bernardo grant, at highway bridge at Bernardo, San Diego County, 
5 miles below junction of Santa Ysabel and Santa Maria creeks, and 16 miles 
above mouth of river. 

Drainage area. — 266 square miles (measured on topographic maps). 

Elevation. — About 300 feet above sea level. 

Records available. — April 17, 1912, to January 16, 1916. 

Gage. — Chain gage fastened to upstream guard rail of bridge over main channel near 
left bank; length of chain 23.18 feet. Original datum was maintained. 

Discharge measurements. — Made from cable 30 feet above gage, from highway 
bridge, or by wading. 

Channel and control. — Sand; shifting. At flood stages water overflows left bank. 

Extremes of discharge. — 1912-1916: Maximum stage recorded, 21 feet January 16, 
1916 (discharge, 11,000 second-feet); no flow for several months each year except 
for a small quantity of ground water that rises to surface above the bridge. 

Diversions. — East and West San Pasqual ditches divert water for irrigation from 
Santa Ysabel Creek at the upper end of San Pasqual Valley (see Santa Ysabel 
Creek near Ramona, p. 125). Water for irrigation is also pumped from wells along 
the river. 

Regulation. — None. 

Accuracy. — ^Stage-discharge relation not permanent. Rating curves fair!}'' well 
defined except for flood stages. Gage read to quarter-tenths twice daily. Daily 
discharge ascertained by applying mean daily gage height to rating tables, by 
shifting-control method, or by interpolation between discharge measurements for 
periods vvhen the change in stage was slight. Records fair. 



SAE" DIEGUITO EIVER BASi:sr. 141 

Discharge measurements of San Dieguito River at Bernardo, Calif., for 1912-1916. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1912. 
Apr. 17 
22 


F.C. Ebert 


Feet. 

10.29 
9.92 
9.48 
9.88 
9.80 
9.51 
9.19 
9.15 
9.11 
9.10 
9.08 
8.95 

""'9." so' 

9.30 
9.75 
9.62 
9.40 
9.38 
9.36 

9.31 
10.24 
10. 15 
9.99 
9.70 
15.62 
10.68 
10.60 
10.38 


Sec. -ft. 
125 

66 

14 

53 

37 

16 
.6 
.2 

a .2 

a .1 

a .04 
.0 
.0 
.3 

a_.l 

13 
.8 
.1 
.05 

.10 
59 
38 
19 
2.9 
2,430 
84 
55- 
23 


1914. 

Apr. 3 

17 

18 

Apr. 24 

May 8 

14 

1915. 

Jan. 25 
31 

Feb. 10 
11 
12 

Mar. 2 
3 
10 
27 

Apr. 6 
10 

May 6 
17 
20 

July 6 
7 

Dec. 10 
IS 

1916. 

Jan. 24 

24 

Feb. 22 

Apr. 12 


R. W. Day 


Feet. 
10.58 
10.28 
10.19 
10.62 
10.53 
10. 27 

10.18 
11.83 
14. 47 
15.75 
12.81 
12.16 
11.71 
11.35 
10.40 
10.50 
10.21 
12. 52 
10.89 
11.01 
9.70 
9.67 
9.53 
9.81 

11.26 
11.33 
5.62 
1.95 


Sec-feet 
34 


H. L. Davis 


do 

F.C.Ebert 

R.W.Day 

do 

F.C.Ebert 




3.3 


May 2 
8 
15 


F.C. Ebert 


,4 


do 

E.W.Case 


23 
13 


23 


F.C. Ebert 


.8 


June 8 


W.S. Post 


F. C. Ebert 




June 23 

July 1 

13 


E.W.Case 

F.C. Ebert 


a. 1 


do 

E.W.Case 


K. B. Sieppy 




382 




F.C.Ebert 




1,580 


13 


F.C Ebert 


do 

do 

do 

do 

do 

do 

do 

R W.Day . . . 




3,110 
861 
470 
368 
230 
64 
58 
30 


Sept. 24 
Dec. 18 

1913. 
Jan. 20 
Mar. 12 
19 


!!!;!da;;;!'.".!"]!!;!!. 

F.C. Ebert 

do 

do 

do... 

do 

do 

F. C. Ebert 


Am. 10 
May 12 
June 16 


C.E.Hickok 




683 


F.C.Ebert 




158 


do 

W. E.Kecnan.. . 




156 
2,6 


1914. 
Jan. 18 


F.C. Ebert 

do 

do 




.8 
,1 


30 


R.W.Day 


7 4 


31 


F.C.Ebert 


R.W.Day 

"kc-'e'ikti!!!!!!!!!;!! 

do 




Feb. 3 
16 
21 


do 

Hickok and Shell 

C.E.Hickok 


281 
589 


Mar. 2 


F.C.Ebert 


298 


6 
23 


R. W. Day 

F.C.Ebert 


158 









Daily discharge, in secondfsi. 



a Estimated. 
, of San Dieguito River at Bernardo, Calif ., for 1912-1916. 



Day. 



May 



20 
12 


0.7 
.5 


6.5 


.7 


2.1 


1.0 


1.3 


1.0 


1.8 


_7 


28 


.7 


59 


.8 


192 


.8 


127 


.8 



Day. 



1912. 
11 . . . 




1-2 




13 




14 




15 




16 




17 


127 


18 

19 


109 
90 


20 


78 



Apr. 



May. 


June. 


107 


0.8 


85 


.8 


71 


.7 


58 


. 7 


41 


.7 


30 


.7 


24 


.7 


19 


.3 


23 


.3 


23 


.3 



Day. 



22 


59 


23 


56 


24 


50 


25 


46 


26 


38 


27 


36 


28 

29 

30 

31 


34 
31 
30 



Apr. 



May. 



19 
21 
11 

5.0 

4.5 

3.6 
2.1 
2.1 
2.5 
1.3 
1.3 



June. 



0.3 
.3 
.3 
.3 



.3 
.3 
.3 
.2 
.2 




Apr. 



0.2 


36 


30 


.2 


25 


30 


.2 


25 


30 


.2 


16 


20 


.2 


12 


18 


.2 


12 


12 


.2 


12 


5 


.2 


12 


3 


.2 


12 


1 


.2 


12 


1 


.2 


12 




.2 


20 




.2 


25 




.2 


25 




.2 


20 





May. 



16 .. 


1912-13. 


0.2 


17 




18 


.2 


19 


.2 


20 


.2 


21 


.2 


22 


8 


23 


20 


24 


16 


25 


12 


26 


72 


27 


12 


28 


12 


29 




30 




31 .- 





Apr. 



.05 
.05 
.05 
.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 
.05 



142 SURFACE WATER OE PACIFIC SLOPE, SOUTHER:^T CALIFOEI^IA. 

Daily discharge, in second-feet . of San Dieguito River at Bernardo, Calif., 1912-1916- 

Continued. 



Day. 


Dec. 


.Tan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


1913-14. 
1 




0.1 

52 

1,680 

285 

110 

52 

33 


33 
45 
23 
19 
15 

23 
23 
23 
19 
15 

12 
8 
3 
3 
3 

3 

6 

8 

555 

820 

2.870 
705 
399 
211 

157 

157 
132 

108 


108 
88 
93 
80 
67 

55 
47 
39 
16 
20 

20 
20 
20 
16 
16 

16 

8 
8 
8 
8 

8 
12 
16 
19 

18 

22 
21 

44 

48 
155 
95 


61 
37 
29 
23 
23 

29 
23 
23 
17 
12 

12 
12 
12 
12 
5 

5 
2 
2 
3 

2 
14 

27 
21 

7 
3 
11 
52 
52 


52 
52 
42 
35 
35 

21 
21 
11 

3 

2 
1 

1 
1 
1 

1 
16 

.11 
3 

3 
3 
3 

2 
2 

3 
3 

2 
2 


3 


2.. 






S 




1 


4 




1 


5 




.5 


0. . . 




.2 


7 . 




.2 


S 




.2 


9. . . 




.2 


10 ... 




.2 


11 . 




.2 


12 




.2 


13 




.2 


14 . - - 




.2 


15 




.2 


16 






17 




.2 


18 ..... 




.2 


19 




.2 


20 . . 


0.1 


.2 


21 


.2 


22 


.2 


23 


.2 


21 


.2 


25 


.2 


26 . 


•2 


27 


.2 


28.. . 


.1 


29 





30 





31 









Day. 


Jan. 1 Fe!>. 

i 


Mar. 


Ap. 


May. 


.Tvnie. 


July. 


Aug. 


1914-15. 
1 




286 

1,060 

915 

352 

334 

226 
197 


318 
520 
336 
267 
234 

230 
198 
180 
165 
186 

220 
170 
148 
139 
120 

112 
104 

97 
100 

92 

68 
70 
64 
58 
60 

54 
57 
48 
126 
100 
88 


6S 
67 

47 
60 

50 
46 

35 
27 
29 

29 
36 
29 
50 

91 

72 

42 
42 

42 
710 
382 
334 
242 

199 
199 
199 
303 

570 


son 

905 

770 

650 

1,250 

690 
482 
398 
366 
303 

272 
242 
213 
185 
185 

172 
172 
305 
207 
155 

145 
140 
130 
120 
115 

110 

100 
95 
85 
75 
70 


65 
65 
60 
60 
55 

50 
50 
45 
45 
40 

35 
35 

30 
30 
25 

20 
20 
20 
15 
15 

15 
14 
13 
12 
11 

10 
9 

8 
7 
6 


5 
4 
4 
3 
3 

2.5 

1 

1 

.5 
.5 

.5 
.4 
.4 
.3 
.3 

.2 
.2 
.2 
.1 
.1 




2 




3 






4 






5 . . 






6 






7 






8 




18:3 




9 




183 

1,840 

2,380 
740 
399 
318 
241 

226 
211 
211 
197 
197 

399 
211 
183 
183 
241 

271 
226 
183 




10 . 







11 




12 




13 






14 






15 






16 . . 






17 






18 






19 






20 






21.. . 



.1 
.1 
.1 
.1 

.1 
.1 
.1 

1 . 080 

i;660 

432 




22 






23 






24 .. .. 






25 






26 






27 

28 

29 




20 
5 
1 


30 

31 


.5 
.2 











SAX DIEGUITO EIVER BASIN. 



14S 



Daily discharge, in second-feet, of San Dieguito River at Bernardo. Calif., 1912-1916 — 

Continued . 



Day. 


Dee. 


Jan. 


Day. 


Dec. 


Jan. 


Day. 


Dec. 


Jan. 


1915-16. 
1. 


0.5 

."5 

8 

1.5 
.3 
.3 
.1 
.1 


22 
22 
27 
22 
22 
32 
32 
32 
32 
45 


11. 
12. 

n 


1915-16. 


0.1 
.1 
.1 
.1 

22 

18 
10 
10 
10 

7 


257 
100 
82 
74 
230 
1,310 






21. 
22. 
23. 
24. 
25. 
26. 

is! 

29. 
30. 
31. 


1915-16. 


7 

5 

2.5 

2.5 

2.5 

2.5 

2.5 

14 

45 

33 




2 








3 








4 - 


14. 
15. 

10. 
17. 
18. 
19. 
20. 








5 








6 . ... 








7 








8 








9 








10 

























Note.— Daily discharge determined as follows: 1912: Apr. 17 lo June M), from fairly well defined rating 
curve. 

1913: Feb. 1 to Apr. 10, from well-defined rating curve; Apr. 10 to May 30, 1913, interpolated between 
measurements. 

1914: Jan. 26 to June 28, from rating curves covermg short periods and by shifting-control method. 

1915: Jan. 29 to Mar. 3, from fairly well-defined rating curve; Mar. 4 to July 20, from rating curves cover- 
ing short periods and by shifting-control method. 

1915-16: Oct. 1, 1915, to Jan. IG, 1916, from curve fairly well defined except for iLood stage. No gage- 
height record Nov. 17 and Dec. 1, 2, and 3, 1915— discharge estimated . 



Monthly discharge of S 


w Dieguito River at Bernardo, 


Calif, 


for 191 


.'-1916. 




Month. 


Disch 


irge in second- 
feet. 


Run-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Rim-oft- 
(total in 


Maxi- 
mum. 


Mini- 
mum-. 


Mean. 


Maxi- 
mum. 


:HiiU- 
nium. 


Mean. 


acre- 
feet). 


1912. 
April 17-30 

Mav 


127 

192 
1.0 
.0 
.0 
.0 


30 

1.3 
.2 
.0 
.0 
.0 


61.1 
32.4 
.55 
.0 
.0 
.0 


1,700 

1,990 

32.7 

.0 

.0 

.0 


1913-14. 

Februarv 

March 


2,870 

155 

72 

52 

3 


3 

8 
2 
1 



229 
39.1 
20.3 
11.3 
.4 


12, 700 
9 400 


June 


April 


1 210 


July. 


May 


' 095 


August 




24 


September 


The year 

1914-15. 




2,870 





29. 6 


21,400 


1912-13. 




.2 
.2 
.2 

5.58 
22. C) 

' '. 13 
.05 





12 
12 
12 

310 
1,390 

320 

I 






November 


1, uuO 

2,380 

520 

710 

1, 250 

65 

2<) 


183 
70 

I 




102 
450 
153 
139 

322 
29. 5 

.88 
.86 




December 




6 270 


January 




February 

March 


25^000 
9 410 


February - 




64 
30 


.2 
.05 


March. 


April 


8 270 


April 


May 


19,' 800 
1 76(1 


May 




June 


July 


54 


July 


1 




53 






The year 

1915-10. 

December 

January 1-16 




September. 




2, 380 





97.4 










The year 


72 





2.80 


2,070 


45 
1,310 


.1 

22 


7.18 
146 


441 


1913-14. 


.1 

1,680 




.1 


.04 
71. 4 


2 
4,390 


4,630 


January 








5,070 






1 





Note.— No flow in months for Avhich discharge is not given. See Extremes of discharge, page 140. 
SAN DIEGUITO RIVEB, NEAR BERNARDO, CALIF. 

Location.— In SE. i NW. ^ sec. 18, T. 13 S., R. 2 W., at CurroU dam site— the reser- 
voir now known as Lake Hodges (PL VI T, B, p. 44)— 5i miles below Bernardo 
Bridge, about 10^ miles above mouth of river, and 4 miles southwest of Bernardo, 
San Diego County. 

Drainage area. — 299 square miles (measured on topogi-iphic maps). 

Elevation.— About 200 feet above sea level. 

Becords available.— January 17, 1916, to September 30, 1918. 

Gage. — Vertical staff in four sections on right bank at dam site. Zero of gage 214 feet 
above sea level. 

DiscHARaE measurements.— Made from cal)le at gage or hj wading near giige. 

Channel and control.— Shifting sand with bedi-ocfc outcropping about 400 feet 
below gage; fauiy permanent except during low stages. 



144 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERE" CALIFORNIA. 



Extremes of discharge. — 1916-1918. Maximum stage recorded, 21,2 feet 1 to 3 p. m. . 

January 27, 1916 (discharge, 72,100 second-feet); no flow July 30 to September 30, 

1916, and June 30 to September 30, 1917. 
Diversions. — East and West San Pasqual ditches divert water for irrigation in San 

Pasqual Valley. In addition there are several pumping plants along the river 

above the station. 
Regulation . — None . 
Accuracy. — Stage-discharge relation not permanent, except for short periods. Fairly 

well-defined rating curves were used February 1 to March 19, March 25 to May 18, 

and October 3 to December 1, 1916; January 3-18, and May 9 to June 29, 1917. 

Gage read to hundredths twice daily; more frequently during high water. Daily 

discharge ascertained by applying mean daily gage height to rating tables, by 

shifting-control method, or read directly from rating curves covering short 

periods. Records good. 
Cooperation. — Daily-discharge record for 1918 furnished by San Dieguito Mutual 

Water Co. through Ed. Fletcher, president. 
Discharge measurements of San Dieguito River at Carroll dam site, near Bernardo, Calif. ^ 

for 1916-19] 8. 



Date. 


Made by— 


Gaee 
height 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1916. 




Feet. 


Sec. -ft. 


1917. 




Feet. 


Sec.-ft. 


Feb. 20 


E. A. Bartl 

EbertandBarll 


2.67 
2.60 


335 
326 


Mar. 
10 


E A. Bartl 


1.67 
1.60 


100 


23 


Bartl and Hayes 


107 


Mar. 2 


E. A. Bartl 


■ 3.28 


467 


10 


Ebert and Bartl 


1.78 


178 


8 


....do 


2.60 


254 


11 


do 


1.64 


112 


11 


McGlashan and Ebert.. 


2.43 


224 


17 


E. A. Bartl 


1.28 


64 


14 


E. A. Bartl 


2.33 


213 


30 


.....do 


1.00 


42 


18 


do 


2.18 


173 


Apr. 8 


do 


.68 


15 


21 




2.83 


360 


10 


do 


.91 


54 


25 


do - 


2.49 


234 


12 


do 


.83 


32 


31 


do 


2.08 


161 


16 


do 


.99 


72 


Apr. 5 


do 


2.05 


159 


17 


do 


2.37 


349 


10 


do 

do 


1.80 
1.70 


123 
98 


18 
20 


do 


1.73 
1.43 


126 


19 


do 


65 


24 


do 


1.55 


84 


23 


do 


1.20 


59 


30 


do 


1.43 


77 


29 


do 


1.16 


61 


May 5 


do 


1.35 


63 


May 17 


E. W. Case 


.59 


6.3 


12 


do 


1.22 


45 


21 


Case and Grem 


.91 


37 


20 


do 


1.31 


75 


28 


Hayes and Case 


.94 


49 


Juno 23 


do 

do 

.....do 


.77 
.62 

.58 


16 
2.4 
2.0 


Nov. 9 

17 

Dec. 25 


F. E. Green 







30 


D. A. McCluns. . . 




.1 


July 8 


do 




.2 


14 


Bartl and Ebcrt 


.68 


11 


1918. 








15 


E. A, Bartl . . . .. 


.80 
.73 
.65 


25 
11 
5.9 


Jan. 25 
25 
26 


F. E. Green 




5.7 


19 


do 

do 


do 




6.7 


23 


do 




46 


29 


do 


.46 


.5 


27 


do 


.54 


34 


Oct. 2 


do 


.58 


17 


31 


do 


.01 


13 


3 


W. J. Isbell 


.96 

.64 
.57 


75 
19 


Feb. 4 
7 
11 


do 

do 

do 


-.12 
-.09 
-.34 


8.3 


13 


E. A. Bartl 


11 


21 


do 


3.5 


28 


do 


.42 


11 


14 


do 


-.24 


7.0 


Nov. 4 


do 


.40 


7.5 


18 


do 


.62 


74 


9 


do 


.40 


6.8 


21 


do 


.05 


24 


19 


do 


.46 


13 


23 


do 


.57 


74 


25 


do.. 


.48 


14 


25 


do 


.42 


34 


Dec. 3 


do 


.54 


29 


Mar. 1 


do 


.08 


15 


16 


do 


.48 


19 


4- 


do 


.06 


12 


27 


do 


1.70 


119 


7 


do 


.37 


39 


31 


do 


1.08 


38 


8 


do 




279 


1917. 


E. A. Bartl 


1.14 


39 


9 
11 


do. . 


1.31 


72 


Jan. 7 


do 


4,500 


15 


do 


1.33 


80 


12 


do 




3,150 


18 


do 

do 


1.46 
2.6 


108 
602 


, 13 
13 


do.. . 




1,380 


19 


do 




720 


21 


do 


2.45 


309 


14 


do 


1.70 


325 


22 


do 


2.06 


191 


15 


do 


1.30 


168 


27 


do 


1.46 


78 


19 


do 


.30 


101 


Feb. 1 


. .do 


1.30 
1.17 


60 
41 


21 

25 


do 


.88 
.30 


175 


4 


do 


do 


96 


10 


do 


1.09 


42 


29 


do 


.08 


68 


18 


. . .do ... ... 


1.96 
1.78 
1.84 


235 
124 
159 


Apr. 2 
8 
12 


do 


7.80 
7.76 

7.72 


57 


21 


F. C. Ebert 


do 

do 


45 


22 


do 


30 


23 


Ebert and Bartl 


4.41 


1,400 


17 


do 




28 


23 


do 

E. A. Bartl 


4.17 
2.80 
2.64 


1,210 
340 
290 


20 

26 

May 16 


. do 




6.9 


24 


do 

do 




5.0 


25 


do 


1.0 


Mar. 1 


.....do..... 


2.02 


142 


June 22 


D. A . McClung 




2.0 











SAN DIEGUITO KIVER BASIN. 145 

Daily discharge, in second-feet, of San Dieguito River near Bernardo, Calif, for 1916-1918. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1916. 
1 








22 
22 
27 
22 

22 

32 
32 
32 
32 
45 

257 
100 
82 
74 
230 

1,310 
11,800 
27,000 
14,800 

5,220 

1,730 
909 
662 
708 

1,060 

2,950 
37,200 
15, 100 
4,750 
2,200 
1,220 

30 
30 
139 
218 
92 

57 
41 
35 
31 
26 

23 
100 
189 

87 
70 

152 
97 
114 

555 
535 

325 
180 
120 
95 

85 

80 
76 
72 
68 
64 
60 


718 
672 
649 
626 
581 

537 
493 
449 
449 
449 

428 
428 
407 
407 
396 

386 
365 
355 
345 
345 

335 
335 
325 
315 
305 

345 
335 
365 
396 

56 
50 
47 
43 
42 

42 
42 
41 
41 
40 

40 
39 
38 
37 
35 

31 
90 
232 
197 
170 

140 
160 
1,240 
360 
285 

260 
225 


537 
471 
407 
407 
428 

359 
316 
254 
244 
235 

226 
217 

208 
199 
190 

182 

182 
174 
174 
210 

360 
275 
310 
300 
235 

217 
199 
190 

182 
174 
166 

130 
120 
110 
105 
100 

86 
66 
66 
66 
150 

125 
108 
88 
83 
80 

76 
68 
66 
64 
■ 62 

59 
57 
55 
52 
50 

48 
45 
43 
41 
39 
36 


158 
158 
150 
158 
158 

150 
138 
126 
124 
120 

123 
141 
141 
116 
116 

113 
109 
103 
105 
96 

89 
85 
84 
84 
80 

79 
75 
73 
69 
68 

33 
30 
27 
24 
22 

20 
17 
14 
14 
53 

53 
33 
24 
25 
25 

260 
315 
123 

82 
64 

47 
52 
58 

48 

44 
41 
60 
61 
52 


66 
64 
62 
61 
59 

57 
58 
58 
56 
52 

51 
49 
48 
49 
49 

44 
42 
41 
50 

75 

68 
67 
60 
55 

54 

52 
49 
48 
45 
44 
42 

40 
31 
25 
21 
23 

17 
15 
14 
35 
42 

36 
31 
30 
21 
14 

6 

4.2 
11 
46 
36 

34 
26 
22 
31 
90 

79 
61 
50 
43 
42 
40 


40 
38 
34 
37 
38 

35 
30 
29 
27 
26 

•24 
23 
24 
21 
19 

18 
15 
12 
11 
9 

8 
13 
16 
16 
12 

10 
9 
7 

4.0 
2.5 

38 
29 
26 
21 
21 

22 
20 
19 
18 
15 

14 

10 
8 

4.3 
2.8 

2.0 
1.4 
1.2 
.6 

.6 
.6 
.5 
.5 
.5 

.4 
.4 
.3 
.2 
.0 


1.0 
1.0 


2 








3 








4 








.5 
.5 

2.5 
1.0 
2.0 
1.5 
1.0 

2.5 
2.6 
5 

11 

25 

91 


6 








6 








7 








8 








9 








10 








11 








12 








13 








h::::::::::::::::::: 








15 








16 








17 








16 


18 








13 


19 








11 


20 








5 
1 


21 








22 i. . 






2 5 


23 i 






6 


24 ' 






6 


25.. . ■ 






A. 


26 








1 


27 . . 








1.0 


28 








29 








5 


30 










31 











1916-17. 
1 


6.5 
17 

89 
48 
19 

52 
45 
38 
32 
31 

30 

28 
27 
27 

27 

26 
24 
23 
21 
21 

21 
20 
19 

20 
17 

13 
12 
11 
12 
11 
11 


11 

10 

9 

7.5 
10 

12 
13 
10 

7 
8 

I 

13 
12 
11 

10 
11 
14 
13 
13 

14 
13 
11 
13 
13 

15 
12 
11 
12 
14 


13 
26 
29 
36 
33 

32 
28 
24 
23 
22 

21 
2 

22 
2 

17 

18 
20 
18 
20 
20 

20 
19 
19 
22 
310 

380 
120 
65 
45 

40 
38 




2. 




3 




4 




5 




6 




7 




8 




9 




10 




11 




12 




13 




14 




15 




16 




17 




18 




19 




20 ... 


........ 


21 




22 




23 




24 




25 




26 




27 




28 




29 




30 




31. 


' 









142131°— 21— wsp 447- 



-10 



146 SUEFACE WATEE OF PACIFIC SLOPE^ SOUTHERN CALIFOR^^IA. 



Daily discharge^ in second-feet, of Son Dieguito E-ii^er near Bernardo. CaJif.. 1916-1918—- 

Continued . 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 1 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


xMay. 


Juae. 


1917-18. 
1.. 




11 
10 
9 
8 
9 

9 
10 

8 
4 

3 

4 

8 
4 


16 
15 
14 
13 
11 

20 

40 
270 

72 
(>2 

4,000 
3,300 
1.300 

■ 325 
1(15 


5(1 
50 
56 
56 
51 

48 
4.5 
45 
38 
36 

33 
30 

30 
29 
29 


5 

4 
4 
4 

3 

3 
3 
3 

2 
2 
2 
2 
1 


\ 

1 
.8 

.5 
.3 
.2 
.1 


1917-18. 

10 

17 




3 
84 
58 
29 

17 

69 
68 
30 
34 

28 

15 

10 




140 
110 
PO 
101 
200 

175 
140 
120 
104 
97 

90 
80 
70 
50 
50 
50 


28 
28 
20 
15 
7 
7 
6 
6 
6 
5 
5 


.8 

.6 
.5 
.4 

25 

20 




2 






3 




18...- 






4. . 




19 






5 




20 










21 








22 






7 












8 




24 














25 


47 
21 
15 
13 
12 
12 












26 . 










11 


27 . . . -. 

• 28 




12 






13 




1 29 




14 




i 30 




15 




! 31 .. 













Note.— Discharge Jan. 1-16, 1916, is record at Bernardo station; Jan. 17-31 computed by W. S. Post. No 
flow July 30 to Sept. 30, 1916. No discharge measurements obtained durins: June, 1917. 

Monthly discharge of San Blegirilo River near Bernardo, Calif, for 1916-191S. 



Month, 


Di.=!cha 


•ge in second-feet. 


Run-off 
(total in 


.* 


Maximum. 


Minimum. 


Mean. 


acre-feet). 


1916. 
January . 


37,200 
718 
537 
158 

40 

25 


22 
305 
166 

68 
4i 
2.5 
.0 


4,180 
432 
265 
113 
54.0 
20.2 
4. 71 


257,000 




24,800 
16,300 
6,720 
3,320 
1 200 


March... 


April • 

May 


June . 


July 


290 






The period 








310 000 












1916-17, 
October 


89 
15 
380 
555 
1,240 
150 
315 
90 
38 


6.5 

13 
23 
31 
36 
14 
4.2 
.0 


25.8 
11.2 
49.7 

124 

150 
75. 6 
69,2 
32.8 
9.27 


1 590 




'666 


December. . 


3,060 
7,620 




February ... 


8.330 


March..: 


4,650 


April 


3,520 
2,020 


Mav 




552 






The year 


1,240 


.0 


44.2 


32,000 




1917-18. 
November 






a. 10 
a. 15 
4.25 
B.8 
364 
26.4 
3.45 
.23 


6.0 








9.2 


January.. . . . 


47 
84 
4,000 
56 
25 
2 




261 




3 
11 

5 
.4 
.0 


1,100 


March 


22, 400 


April . 


1,570 




212 


June 


13.7 




4,000 


.0 


35. 3 


25,600 





o Estimated. 
Note. — See note to dailj'-dischargc table. 

SAN DIEGUITO RIVER NEAR DEL MAR, CALIF. 

Location. — In San Dieguito grant at Santa Fe ranch pumpijig plant, about 4 miles 

above mouth, and 4^ miles northeast of Del Mar, San Diego County. 
Drainage area. — 328 square miles (measured on topographic maps). 
Elevation. — About sea level. , 

Records available. — October 1, 1912, to September 30, 1914. 
Gage. — Vertical staff on right bank about 300 feet from i)ump house. 



SAN DIEGUITO RIVER BASHSTc 



147 



Discharge measurements. — Made from bridge 2 miles below gage or by wading 

near gage. 
Channel and control.— Sand; very shifting. 
Extremes op discharge. — Maximum stag^ recorded, 6.0 feet February 21, 1914 

(discharge not determined). No flow for several months each year. 
Diversions. — See San Dieguito River at Bernardo (p. 140). In addition Santa Fe 

ditch, having a capacity of about 10 second-feet, diverts water 300 feet above 

gage. The record at this station shows quantity of water wasted into Pacific 

Ocean. 
Regulation. — None. 
Accuracy. — Stage-discharge relation not permanent. Gage read to half-tenths twice 

daily. Daily discharge ascertained by applying mean daily gage height to 

rating tables or for periods not covered by rating curves, by shifting-control 

method. Records fair. 

Discharge ■measurements of San Dieguito River near Del Afar, Calif., for 1913-14- 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


Gage Dis- 
height. charge. 


1913. 
Feb 26 


W S Post 


Feet. 
2.20 
2.10 
2.19 

2. OS 


Sec.-ft. 
26 
11 
19 
13 


1914. 
Jan. 30 
Feb. 8 
Mar. 8 

27 


W. S Post 


FrH. 
2.42 
2.00 
2.61 
2.45 


Sec.-ft. 
«78 


Mar 3 


do 


do 


22 


14 


F. C, Ebert 


F. C. Ebort 


45 


29 


E. \V.Ca.?f, 


do 


17 











a Made from bridge 3 miles below gage. 
Daily discharge, in second-feet, of San Dieguito River near Del Mar, Calif., for 1913-14- 



\ 1 \ 
Day. ; Feb. \ Mar. : . 


\^x. 


i Day. 


Feb. 


Mar. 


Apr. 


Day. 


F.l 


. Mar. 


Apr. 


1913. : 

1 14 


11 
14 
14 
14 
11 

8 
3 


i 


19 i 
I 






5 
5 




21 . 


1913. 




.-i 11 

::i ^J 

..i 31 
..| 31 

1 34 
i 34 
[) i 23 
. .: 14 




2 '9 


2 






22: 

23 






3 8 1 


3 







;;< :::::: 




4 . .. ..; 8 ' 


4 






24 






5 ' 5 


5 






25 






; 

6 1 


2 i 
2 -- 

5 .. 


6 






26 .. . . 


2 

2 




7 


1 

8 






27 


j 


8 




11 

U 
11 






28.. 
'?9 




1 - -. 


9 


















10 






>() 








30.. 
31 






..! 11 










i 








..| 11 








1 












Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Day. 


Jati. 


Feb. 


Mar. 


Apr. 


May. 


1914. 
1 




46 

40 
33 
33 
22 

IS 
14 
22 
33 
22 

14 
18 
14 
9 
2 


96 

96 

76 
76 
58 

58 
58 
42 
26 
26 

26 
26 
20 
20 
20 


50 
42 
34 
34 
26 

26 
26 
26 
20 
13 

13 
10 
13 
6 
4 


50 
50 
50 
26 
26 

26 
13 
13 

1 


16 
17 
18 
19 
20 

21 
22 
23 
24 
25 

28 
27 
28 
29 
30 
31 


1914. 




2 


13 

13 
13 
6 
10 

4 
6 
6 
13 
20 

20 
20 
42 
67 
96 
58 











58 
42 
26 

13 
13 
13 
6 
26 




2 








3 


3 








10 


4 








2 


5 












6 
























8 . 












9 












10 












11 
















12 










116 
106 




13 













14 










130 
75 

60 




15 













































Note. — Daily discharge determined as follows: Fel"). 26 to Mar. 2, 1913, by shifting-control method; Mar. 
3 to Apr. 5, 1913, from fairly well defined rating curves; Jan. 29 to Feb. 18, 1914, and Fel-». 27 to May 19, 1914, 
from fairly well defined rating curves. Stream dry Oct. 1, 1912, to Feb. 25, 1913; Apr. 8, 1913, to Jan. 26, 
1914; Apr. 16-22, May 11-16, and May 20 to Sept. 30, 1914. 

Discharge for high water Jan. 27-28, and Feb. 19-26, 1914, not computed as period was not covered by 
'■■"""^ — e measurements. 



148 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Monthhj discharge of San Dieguito River near Del Mar, Calif., for 1912-1914. 



Month. 


Discharge in second- 
feet. 


Run-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Run-off 
(total in 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). : 


1912-13. 
February 


30 
34 2 
14 


2.5 
13.0 
2.5 


139 

799 
149 


1913-14. 
March . 


96 

58 
50 


4 

6 




36.5 
18.0 
8.9 


2,240 
1 070 


March . 


April 


April 


May.. 


'547 













Note.— No flow October, 1912, January, 1913, and May, 1913. to February, 1914, and June to October, 
1914, all inclusive. 

BLACK CA2TY02T CREEK NEAR MESA GRANDE, CALIF. 

Location. — In NE. i sec. 17, T. 12 S., R. 2 E., 1 mile above junction with Santa 
Ysabel Creek and about 4 miles southwest of Mesa Grande, San Diego County. 

Drainage area. — 15.2 square miles (measured on topographic maps). 

Elevation. — About 1,950 feet above sea level. 

Records available. — February 14, 1913, to September 30, 1918. (Discharge measure- 
ments only except for the years 1913-14, January to March, 1917, and 1917-18.) 

Gage. — Inclined staff on left bank. 

Discharge measurements. — ^Made by wading near gage. 

Channel and control. — Solid rock and boulders; fairly permanent. 

Diversions. — None. 

Regulation. — None. 

Accuracy. — Stage-discharge relation fairly permanent. Rating curve for 1917 is 
well defined below 25 second-feet. Gage read to hundredths (occasionally). 
Daily discharge for 1913-14 interpolated between discharge measurements and 
estimated from records of flow at adjacent stations in Santa Ysabel drainage 
basin; discharge for 1917 ascertained by applying gage height to rating table. 
Records fair. 

Discharge measurements of Black Canyon Creek near Mesa Grande, Calif., for 1913-191S. 



1913. 
Feb. 14 
15 
16 
21 
28 



Apr. 



May 



July 



Made by— 



E. W. Case.. 

....do 

....do 

K. W. Day.. 

do 

...-do 

do.. 



F.C.Ebert.. 
R. W. Day.. 

do... 

....do... 
....do.... 
....do.. 
....do.. 
....do.. 
....do.. 
....do.. 
....do.... 
do.. 



F. C. Ebert. 

R. W. Day.. 
do 

....do 

do 

do 

do 

do 

do 

....do 



Gage 
height. 



Feet. 
LOO 



LOl 

.55 



Dis- 
charge 



Sec.-Jt. 
0.7 



2.9 
11 
3.5 
4.5 
3 

4.8 
4.1 
2.4 
2.2 
2.4 



(«) 
(a) 
(a) 
(«) 



1913. 

Oct. 1 
8 
15 
22 
29 

Nov. 5 
12 
18 
26 

Dec. 3 
10 
17 
24 

1914. 

Jan. 3 
7 

14 
21 
28 

Feb. 4 
12 
20 

Mar. 5 
11 
18 
25 

Apr. 1 



5 by- 



R. W. Di 
....do... 
....do... 
....do... 
....do... 
....do... 
....do... 
....do... 
....do... 
....do... 
....do... 
....do... 
....do... 




R. W. Day. 

do 

....do 

....do 

....do 

....do 

....do 

....do 

F. C. Ebert. 
R. W. Day. 

....do 

do 

....do 

....do 



Gage Dis- 
height. charge. 



Feet. 
0.15 
.15 
.15 
.15 
.18 
.18 
.21 
.18 
.24 
.26 
.24 
.26 
.27 



.37 
.33 
.33 
.55 
1.40 
.80 



.93 
.83 
.75 

'.m 

.75 



I Practically dry. 



SAN DIEGUITO KIVER BASIN. 



149 



Discharge measurements of Black Canyon Creek near Mesa Grande, Calif., for 1913-1918- 

Continueci. 



1914. 
Apr. 15 
26 
29 

May 6 
13 

1915, 

Jan. 18 

25 

Feb. 22 

Mar. 1 

8 

22 

29 

Apr. 5 

12 

19 

May 11 

25 

June 1 

July 13 
20 
27 

Aug. 3 
10 
17 
24 
31 

Sept. 8 
14 
21 



Made by— 



R. W. Day 

do... 

do... 

....do... 
do... 



D. A. McClung.. 
do. 



R. W. Day., 
do 

do 



.do. 
.do. 
.do.. 



do 

do 

W. J. Isbell. 
.do. 



.do., 
.do., 
.do.. 



..do., 
..do. 
..do.. 



.do. 
..do. 
..do. 



.do. 
..do. 
..do. 



.do.. 
..do.. 
..do.. 



.do. 
.do. 
.do. 



do 

do 

F. C. Ebert., 
W. J. Isbell. 



Gage 
height. 



Feet. 
0.66 
.71 
.81 
.71 
.63 



Dis- 
charge. 



Sec.-ft. 
3.1 
2.8 
5.6 
3.6 
2.2 



4.8 

24 

46 

25 
8.9 

11 
6.6 
4.8 
4.1 

33 

15 

11 
2.9 



1916. 
Jan. 11 

Mar. 7 



25 

May 2 





30 


June 


H 




13 




20 


July 


11 


Aug. 


10 


Oct. 


19 


1917. 


Feb. 


13 




IS 


Mar. 


7 



9 

20 

27 

13 

19 

June 29 

Aug. 20 

Nov. 19 

Dee. 24 

31 

1918. 

Mar. 8 

31 

May 6 

Aug. 13 



Made by— 



W.J. Isbell.. 
R. W.Day... 

do 

....do 

W.J. Isbell.. 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

..-.do 

....do 

....do 



D. A. McClimg 

F.C. Ebert 

D. A. McClung 

E. A. Bartl 

D. A. McClung 

F.C. Ebert 

McClung and Holley . . . 
McGlashan and Ebert. . 

D. A. McClimg 

McClung and Campbell 
D. A. McClung 

.do 



F.C. Ebert. 



do 

D. A. McClung... 

F. C. Ebert 

D. A. McClung.. 



Gage 
height. 



Feet. 
1.07 
1.75 
1.55 
1.60 
1.67 
1.60 
1.44 
1.25 
1.24 
1.28 
1.27 
1.20 
1.25 
1.16 
1.10 
1.05 



1.07 
1.40 
1.30 



Dis- 
charge. 



17 

18 

16 

15 

12 

10 
7.0 
7.9 
7.3 
5.6 
6.6 
4.9 
4.1 
2.9 
1.4 
1.2 



3.9 

10 

8.4 

11 

7.1 

4.7 

4.9 

9.7 

1.2 

.05 

.15 

.37 

.6 



Daily discharge, in second-feet, of Black Canyon Creek near Mesa Grande, Calif., 1913-14 

and 1917-18. 



Day. 



Apr. 



May. 



1 


1913-14. 




2 




3 




4 




5 




6 




7 




8 




9 




10 




11 




12 




13 


2 5 


14 


1.5 


15 




16 




17 





18 





19 ... 


2 5 


20 


2.5 


21 


1.5 


22 . 


5 


23 . 




24 




25 




26 




27 




28 




29 




30 




31 





.2 
.2 
.2 
1.5 
1.5 
1.5 
2 
2 

1.5 
1.5 
1.5 
1.5 
2.5 
5 
40 
175 
36 
20 



5.5 

5.4 



3 

2.8 
2.8 
2.5 
2.5 
2.5 
2.5 
2.5 
125 

54 
250 
100 

75 

50 

40 

30 

25 

15 



14 
13 
12 



7.5 

7 

6.7 

6.5 

6.2 

5.8 

5.5 

5.3 

5.0 

4.8 

4.8 

4.8 

4.7 

4.7 

4.6 

4.6 

4.6 

4.6 

5.0 

5.0 



6.3 
6.0 
5.8 
5.5 
6.3 
6.0 
4.7 
4.5 
4.3 
4.1 
3.9 
3.7 
3.5 
3.3 
3.1 
3.1 
3.1 
3.0 
3.0 
3.0 
2.9 
2.9 
2.9 
2.8 
2.8 
2.8 
3.0 
3.0 
5.6 
6.0 



6.0 
5.0 
4.5 
4.0 
3.8 
3.6 
3.4 
3.2 
3.0 
2.8 
2.6 
2.4 
2.2 
2.1 
2.1 
2.0 
1.9 
1.9 
1.8 
1.7 
1.7 
1.6 
1.5 
1.5 
1.4 
1.3 
1.3 
1.2 
1.1 
1.1 
1.0 



150 SUIIFACE WATER OF PACIFIC SLOPE, SOVTH--:eN C-^LLIFOR>n"IA. 

Daily discharge, in second-feet, of Blach Canyon. Creel ne.a jL^h Gnutde. Cruif.; 1912-14 
and 1917-18 Continued. 



Day. 


Jan. 


Feb. 


Mar. 


i "'- 


Jan. 


Feb. 




r^ay. T-Ti. ' Feb. 


j Mar. 


1917. 
1 








1 11 
1 12 
! 13 

' 14 


1917. 




4.0 
3.9 
4.0 






21. 
22 


1917. 




2 


1 


16 








1.^9 




3 








23 1 


} [ 77 


7 


4 


I 










24. 

25 






5 ' .. ' 


ifi 














6 i -10 






13 




9 


26 i-; 

27 

28 




7. 1 3.5 3.8 


8.0 ' 17 






' 4.7 


8.- ! 


3.8 
3.0 
3.0 


-ll- 


i I''' 






10 
13 
32 






9 - 


! 19 

1 20 




29. 
30. 
31. 






10 ! 


'" 




i * 
1 


Day. 


Nov. 


Dec. Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


J ivy. 


A,,^. 


Sept. 


1917-18. 
1 : 




0.2 




0.8 


1.6 


6 








2 










0. 2 






3 




1 1 








2 8 








4 






0.2 










2.2 


■■"'.■2' 


"'"6."6' 








) "i 






1.6 


4.2 










j 


.5 






0,1 


J 




s ' 1 


4.2 

28 




2 8 


1.6 








R 




.2 










' 






9.. . . 









4.2 


2. 8 




.1 




10 


.2 













.2 




11 




.3 




517 
540 
42 






1.1 






12 







2.8 






13 




6 
1.1 








.1 




14 








2.. 


.6 




.1 


1.'') 




.6 












n ' 


.3 




9 


3.5 






.2 


- 




17.. . 


.2 




: 


2.2 






18 






6 


8 




.6 








19 






2.8 




• i 


,....-. 




20. 








1. 1 


30 




2.8 




< 


21 1 . ... 




.5 






■' 







22 




.3 






12 










23 








3.2 






.1 


.1 :....... 


24 


.2 


, 






2.2 




1 


25 




4.2 


4.2 






.3 


"".1 




26 







8 


3.5 


■■■2.'2" 






27 




2.8 




.1 


.1 


28 





.2 








....'!. 






29 








7 




7 




j 




30 




.6 




3.2 








31 


t 














•' 






i 1 1 

















Note.— Daily discharge Not. 13, 1913, to May 31, 1914, obtainrd ])y iiittrpcu ' !■ n :)i tv-cen measuremcnta 
and by com-i:)arlson with records ol flow at otber stations in the Santo fsab. i i ';;?;--i. Stream dry, Oct. 1 to 
Nov. 12, 1913, and practically dry during August and Sopteml)er, 1914. lor d 'scbargo for Juno and July, 
1914, .se? montbly discharge table. 

Monthly discharge of Blade Canyon Creel: near Mesa Grande, Calif., for 191S-14. 



October 

November. . 
December . . 

January 

February... 

March 

April 



Mean 
discharge 
in second- 
feet. 



.13 
10.4 



7.04 
3.96 



Him-off 
(total in 
acre- 
feet). 



433 
236 



May 

June 

July 

August 

September. . 



The year.. 



Mean 


Run-off 


discharge 


(total in 


in second- 


acre- 


feet. 


,ee.). 


2.41 


148 


1.0 


60 


.15 


9 





9 









SAN" DiEGUITO FJYER BASIN. 



151 



TEMESCAL CREEK 3TEAR ALMOND^ CALIF. 

Location. — In NW. | sec. 23, T. 12 S., R. IE., about 400 feet above junction with 
Santa Ysabel Creek and 1^ miles south of Almond, San Diego County. 

Drainage area. — 31.5 square miles (measured on topographic maps). 

Elevation. — About 975 feet above sea level. 

Records available.— February 15, 1913, to November 30, 1915. ( Discharge measure- 
raents only for year 1912-13.) 

Gage. — Inclined staff on right bank. 

Discharge measurements.— Made by wading near gage. 

Channel and control. — Sand; shifting. 

Extremes OP discharge. — 1913-1915: Record too incomplete to show maximum 
stage during period; maximum mean daily discharge for period estimated 300 
second-feet, February 21, 1914; no flow for several months each year. 

Diversions.— None. 

Regulation. — None, 

Accuracy. — Stage discharge relation not permanent. Gage read to hundredths 
about twice a week. Daily discharge interpolated between discharge naeasure- 
ments or estimated from record of flow at station on Santa Ysabel Creek near 
Ramona. Records fair. 



Disch arge w east i rements 


of Ten 


escal Cr 


eek near Almond, Calif., for 191-:-191 


'^■ 




Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Di.s- 
charge. 


1913. 
Feb. 15 


W. S. Post........ 


Feet. 


Sec-n. 
0.8 
3 7 
2.1 
LO 
1.0 
.9 
1.0 
.8 
.8 
.6 
.6 
.6 
.4 
.4 
.4 
.2 
.2 
.4 
.2 
.2 
.2 
.2 
.1 
.1 
.1 
.1 
.1 
.0 
.0 

a. 05 
.02 
.0 
.1 

O.02 
.1 
.1 

.05 

.1 
2.5 
.1 
.1 
.1 
.3 
.0 


1914. 

Jan. 8 
16 
22 
27 
29 

Feb. 1 


R. W. Day 


Feet. 
0.58 
.64 
.57 
2.41 
L75 
L47 
1.47 
1.42 
1.44 
-2.10 
1.90 
1.95 
1.74 
L70 
1. 57 
1.54 
1.54 
1.45 
1.35 
1.-27 
1.26 
1.20 
1.18 
.95 

1.09 
1.07 

1. 05 
L82 
2.48 

2. 01 
1.90 
1.57 
1.39 
L25 

.94 
.71 

:68 

-.14 
-.37 
-.31 
-.36 
-.34 
-.36 
-.24 
-.29 


Sec.-ft. 
0.3 


22 

25 

Mar. 7 


R. Yf. Day 

do 

do 


0.67 
.59 
.63 
.62 
.60 
.60 
.60 
.60 
.60 
.61 
.62 
.60 
.60 
.61 
.57 
. 53 
. 55 

52 
.48 
.44 
.48 
.43 
.47 
.44 
.50 

54 
.50 
.48 
.52 
.51 
.47 
.44 
. 50 
.50 
.51 
.52 
.47 
.51 
.48 
.49 
.73 
.51 
.51 
.53 
.53 
.73 


do 

do 

do.... 


.0 
.4 
235 


11 


do . 


.do 


12 


18 


F, C. Ebert 


do 


2.7 


21 


R. W. Day 

do.. 


5 


.. .do 


1.6 


25 


10 
17 
24 
Mar. 3 
4 
11 
19 


do...;:;;::::;:::;:: 


LO 


Apr. 1 
9 


do 


do.... 


.9 


do 


do 


25 


16 


do 


do 


7.5 


22 


... .do 


F. C. Ebert 


7 8 


29 


do 


R. W Dav 




May () 
11 


do 


do 


3 4 


F. C. Ebert . 


26 
31 
Apr. 6 
13 
27 


do 


2 7 


17 


R.W.Day 

do 

do 


do.. . 


6.3 


23 

27 


do 

do 


3.6 
2 8 


June 4 


.. .do 


do 


3 


12 
16 


do 

F. C. Eberfc 


May 1 
4 

11 

Aug. 26 

1915. 

Jan. 10 
17 
24 

Feb. 6 
13 
20 
27 

Mar. 6 
12 
20 

Apr. 2 
17 
17 

June 1 

July 13 

Aug. 10 
24 

Sept. 28 

Oct. 12 
26 

Nov. 9 
30 


do 


4.5 


. ..do.... 


3 2 


2() 


R. W. Day 


do 


2 1 


July 2 


....do....: 

do 

do 


do 

W. J. Isbeli 


1.6 
01 


14 


D A McClung 




22 


... .do 




29 


do .. 


,. 




do 


do. 




" 18 


. „ .do.... 


do 


9 


22 


do 


.. ..do.... 


8 6 


28 
Sept. 2 


F. C. Ebert 

R.W.Day 

do 

do 

do... 

do 

do 

do. 

do.. 

do 


do 

R.W.Day... 


36 
20 


9 


do... 


16 


20 


do 


28 


2r> 


.. .do.... 


14 


Oct. 2 

9 


do 

do.... . 


12 

6 fl 


19 


do 


4 
4 
8 
1 

1 


r 


23 

28 


do 

W. J. Isbeli . 


4 


Nov. (i 


do 


do 




13 


do 


. ..do.... 


1 


23 


do 


do 


s 


Dec. 2 

11 


do 

....do 


do 

.do. .. 


4 


18 


do 


do 


•^ 


23 


do 


do.... 


5 






do 


7 



b Nearly dry. 



152 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Temescal Creeh near Almond, Calif. , for 1913-1915» 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1913-14. 
1 


0.1 

!05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 
.05 

'.2 

.2 
.2 


0.05 
.1 
.1 

.i 
a 

.1 
.1 
.1 

.05 
.05 

.05 
1.0 
2.5 
1.5 

.5 

.1 

.1 

.1 
2.5 
2.5 

1.5 
.5 
.1 
.1 
.1 

.1 
.1 
.1 
.1 
.1 

.1 
.1 
.1 
.1 
.1 

.1 

.1 

.1 
2.0 
1.0 

.7 
.4 
.1 
.2 

.4 

.6 
.8 
1.0 

.8 
.7 

.6 
.5 
.4 
.3 
.2 

.2 
.2 
.3 
.3 
.4 


0.1 

'.2 
.3 

.3 
.3 
.3 
.3 
.3 

.3 
1.0 

.6 
.4 
.2 

.2 
.2 
.2 
.2 
.2 
.2 

.4 
.5 
.5 
.5 
.5 

.5 
.5 
.5 
.5 
.5 

.5 
.5 
.5 
.5 
.5 

.5 

.8 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
.9 

.8 
.7 
.6 


0.2 
.2 
.2 
.2 
.2 

.2 
.2 

■:i 

.3 

.3 
.3 
.3 
.3 

.6 

.6 
.6 
.8 
.9 
.6 

.4 
.4 
.4 
1.0 
2.5 

50 
235 

20 

12 
6.0 
4.0 

.5 
.5 
.5 
.5 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.7 
2.5 
1.5 

.9 
2.0 

1.5 
1.5 
2.0 

75 

40 

12 


2.7 
2.0 
1.6 
1.6 
1.6 

1.6 
1.0 
1.6 
1.0 
1.0 

1.0 
1.0 
1.0 
.9 
.9 

.9 
.9 
.9 
150 
50 

300 
150 

75 

25 

20 

15 
10 
10 

8 
20 
15 
12 
10 

8.5 
7.5 
7 
7 
75 

125 
50 
36 
25 
18 

18 
19 
14 
12 
20 

20 
15 
14 
16 
25 

17 
16 
13 


9 

8 
7.5 

7.8 
7.4 

7.0 
6.5 
6.1 
5.7 
5.4 

5.0 

4.8 
4.6 
4.4 
4.2 

4.0 
3.8 
3.6 
3.4 
3.3 

3.2 
3.1 
3.0 
2.9 

2.8 

2.7 
3.0 
3.0 
6.0 
9.0 
6.3 

30 
40 
24 
24 
23 

23 
20 
18 
16 

18 

15 
14 
13 
12 
12 

11 
11 
11 
12 
12 

12 
12 
11 
11 
11 

12 
12 
11 
10 

9 

8 


6.0 
6.0 
5.4 

4.8 
4.2 

3.6 
3.5 
3.4 
3.3 
3.2 

3.1 
3.0 

2.8 
2.8 
2.8 

2.8 
2.8 
2.8 
2.8 
2.9 

2.9 
2.9 
2.9 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
4.5 

8 
7 
6 
6 
5 

5 
5 

5 

5 

4.5 

4 

4 

4 

10 
15 
10 
10 

8 

7 

7 

7 

12 
40 


4.5 
4.0 
3.5 

3.2 

2.8 

2.4 
2.1 
2.0 
1.8 
1.7 

1.6 
1.6 
1.5 
1.5 
1.4 

1.4 
1.3 
1.3 
1.2 
1.2 

1.1 
l.l 
1.0 
1.0 

.9 

.9 

.8 
.8 
.7 

.7 
.7 

52 
65 
57 
40 
33 

30 

2? 
25 
24 
23 

22 
22 
22 
21 
21 

20 
20 
19 
18 
18 

18 
18 
17 
17 
16 

15 
14 
13 
12 
11 
11 










2 










3 










4.. 










5 










6 











7 











8 











9 










10 










11 










12 










13 










14 










15 










16 










17 










18 










19 










20 










21 










22 










23 










24 










25 










26 










27 










28 










29 ... . 










30 










31 










1914-15. 
1 .. 


9 

10 
10 

9 

9 

8 
8 
8 
7 
6 

6 
6 
5 
5 
5 

5 

4 
4 
4 

4 

4 
4 
4 
4 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 


3.5 

3.5 

3 

3 

3 

3 

2.5 

2.5 

2.5 

2 

2 

2 • 
1.5 
1.5 
1.5 

1.5 

1 

.9 

.8 

.8 
.8 
.8 
.8 
.8 
.8 


0.8 
.8 
.7 
.7 
.6 

.5 
.4 
.3 
.2 
.1 

.1 
.1 
.1 
.1 
.1 

.1 
.1 
.1 
.1 
.1 

.1 
.1 
.1 

.8 
.8 

15 
1 

.5 
.5 
.4 
.4 


0.3 


2 


.3 


3 


.3 


4 


.3 


6 


.3 


6 


.3 


7 


.3 


8 


.3 


9 


.3 


10 


.3 


11 

12 

13 


.3 
.3 
.3 


14 


.3 


15 


.3 


16 


.4 


17 


.4 


18 


.4 


19 


.A 


20 


.4 


21 


.4 


22 


.4 


23 


.4 


24 


.4 


25 


.4 


26 


.4 


27 


.4 


28 


.4 


29 


.4 


30 


.4 


31 









SAN DIEGUITO RIVER BASIl^. 153 

Monthly discharge of Temescal Creek near Almond, Calif., for 1913-1915. 



Month. 


Discharge in second- 
feet. 


Run-off 
(total in 
acre- 
feet.) 


Month. 


Discharge in second- 
leet 


Run -off 
(totalin 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre 
feet.) 


1913-14. 
October 






0.077 
.483 
.23 

10.9 

29.6 
5.05 
3.44 
1.67 
a. 70 
a. 10 


5 
29 
14 
670 
1,640 
311 
205 
103 
42 
6 


1914-15. 

October 

November 

December 

January 

February 

March 


0.2 
2.0 
1.0 

75 
125 

40 

40 

65 

10 
3.5 

15 
.4 


0.1 
.1 
.4 
.5 

7 

8 

4 
11 

3.5 
.8 
.1 
.3 


0.11 
.43 
.70 
4.88 
23.0 
15.4 
7.98 
23.9 
5.63 
1.68 
.83 
.35 


7 








26 


December 






43 








300 


Februarj''. . 






1,280 


March 






947 


April 






April . 


475 


May. 






May 


1,470 








June 


335 


July. 






July 


103 










51 


The year 






4.18 


3,020 


September 

The year . . 


21 












125 


.1 


6.98 


5,060 



a Estimated. 
Note.— Stream dry during August and September, 1914. 

EAST SAN PASQUAL DITCH NEAR SSCONDIDO, CALIF. 

Location. — In NE. \ sec. 36, T. 12 S., R. 1 W., a short distance below intake, at 
upper end of San Pasqual Valley, 9 miles southeast of Escondido, San Diego 
County. 

Records available. — 1912 to 1914. 

Gage. — Stage was determined by measuring distance to water surface from reference 
point at top of flume. 

Discharge measurements. — Made from foot plank across flume at gage. 

Channel. — Considerable silt from the Santa Ysabei is deposited in the ditch. 

Accuracy. — Stage-discharge relation not permanent. Gage read to hundredths once 
daily. Daily discharge for year 1912-13 was computed from rating curves cover- 
ing short periods, by shifting-control method, and by interpolation between 
discharge measurements. Records fair. 

The intake of East San Pasqual ditch is on left bank of Santa Ysabei Creels: near 
mouth of canyon. August 15 to January 15, it is entitled to entire flow of Santa 
Ysabei Creek. During remainder of year it has a right to divert 16 second-feet for 10 
consecutive days out of each 30. The water is used for irrip:ation in San Pasqual 
Valley. 

Discharge raeasurements of East San Pasqual ditch near Escondido, Calif., in 1912-1914. 



1912. 
May 2 
June 8 
22 

1913. 

Jan. 20 

24 

Feb. 14 

Mar. 13 

19 

Apr. 10 

May 5 

12 

20 

June 2 

12 

16 

23 

July 1 

Oct. 27 

Nov 3 



Made by- 



F. C.Ebert. 
W. S. Post.. 

E. W.Case.. 

F. C.Ebert. 

..do 

..do 

..do 

..do 

..do 

R. W. Day.. 
F. C.Ebert. 
R. W. Day.. 

do. 

do. 



F. C.Ebert. 
R.W.Day.. 

do 

do 

do 



height. 



.54 

.27 

.70 
.53 
.60 
.64 
.63 
1.33 
1.15 



Dis- 
charge. 



Sec.-ft. 
12.1 
3.5 
2.9 

9.3 
6.0 
6.4 
4.0 



3.8 
3.7 
2.3 
.0 
.0 
.0 
.0 



1913. 

Nov. 10 
21 

Dec. 5 
15 
26 

1914. 

Jan. 5 

12 

19 

30 

Feb. 27 

Mar. 6 

13 

27 

3 

10 

17 

24 

May 8 

June 12 



Apr 



Made by- 



R. W. Day 

do.. , 

do.., 

do.. 

do... 



....do.. 
....do.. 
....do.. 
....do.. 
....do.. 
....do.. 
....do.. 
....do.. 
....do.. 
....do.. 
....do.. 
....do.. 
....do.. 



Gage 
height. 



1.13 

1.45 



1.24 
1.25 
1.18 
1.26 



Dis- 
charge. 



Sec.-ft. 
0.0 
3.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

10 

16 
.0 
.0 



12 
12 
3.0 



154 SURFACE WATER OF PACIFTC SLOPE, SOFTHER'K- CALIFORI<nA. 
Daily gage height, in feet, of East Sav Trmnu^J ditch near Escondiflo, Calif, for 1913-1914. 



Day. 


JUBC. 


July. 


Day. 


June. 


July. 


Day. 


Jime. 


July. 


1912. 
1 




0.25 
..21 
.29 
.21 
.23 

.16 
.12 


1912. 
11 


0. 16 

.46 

.42 

'. m 

.58 
.46 
.31 

. 25 




2i.. 
23 . 


1912. 


0.25 

.25 
.31 
.29 








12 

13 

14 

15 - 

16 

17 

18 




3 






4 








5 




* 






.25 
.26 

!l7 

.29 
. 25 




6 




26.. 

27.. 
28. 












s 






9 


0.54 
.50 




19 

20..: 


29.. 
30.. 
31-. 






10 





















Note.— In 1912 water was turned in on ifar. 3 and ^-^ontirmod l:o How until May 14. -Vfter this date the 
discharge of the Santa ^'sabel was so low that it b'ocamc m-sessary to apportion thi- water accordin.; to the 
terms of the water right. Ditch dry after July ?. No estimate of daily discharge. 



Daily discharge, in second-feet, of East San Pasquo] 

1912-1.!. 



Esrondido. Cidf., for 



1912-13. 
1. 





2 





3 





4 










6 










8 





9. . 





10 





11 





12 





13 





14 





15 





16 





17 





]S 





19 





20 





21 








2" 




24 




25. . .. 1 




27 j 


28 ' 


29 1 . . 


30 ... . 


31 



Jan. 



Fel). 


Mar. 


. . 








4.9 





n 


5.2 


1.8 





5. 5 


8.3 





10 


3,6 





14 


8. S 





14 


8. S 





15 


8.8 




11 


6.6 




7.1 


4.5 




6.6 


4.0 




6.0 


3.4 




6.0 


4.0 




6.0 


4.0 




::.. 8 


4.0 
3.4 





5. 5 


3. 2 





5. 5 


2. 9 





6.3 


3.4 


9.3 


7.1 


6. 1 


8.9 


9.3 


6.0 


8.0 


20 


7.7 


7.1 


12 


3.8 


6.0 


4.5 





8.6 








4.9 








4.9 








5.2 








5. 5 







5.5 







5.5 




" 



Apr. 



11 

10 

10 
9.4 
S.8 
8.3 

10 

9.4 
4.7 




5.4 
5.3 
5.2 
6.1 
5.0 



3.4 
3.3 

3.1 
3.0 
2.9 
2.7 
2.6 



4. 9 


2.4 


4. S 


2.3 


'k7 


1.5 


4.6 


5 


4.5 





4.3 





4.1 





4.0 





3. 9 





3.8 





2,8 


9 


2.5 





2.2 










3.3 





3.3 





3. 3 





6.0 





8; 8 





7.2 










Note.— October and November, 1912 and Jidv, -Vimast, and September, 1913, diieii < 
December 21-31, 1912 and January 9-16, 1913. 

Monthly discharge of East San PasquaJ ditch near Escondido, Calif.,, fo 



Month. 


Discharge in second- 
ieet. 


Run-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Run-ofT 
(total in 


Ma7;i- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- i Mild- 
mum. ' mum. 


Mean. 


acre- 
feet). 




9.3 
20 








5. 16 
7.08 
3. 65 
3. 89 


154 
393 
224 
231 


! Mav .s ■? .0 


3.96 
1.65 


243 


February 


June 

The p;^rio(i 


4. 6 


98 


April 1'-^ 






1,343 






! 






SAN DIEGUITO RIVER BASIIT. 



155 



GTJSJITO CREEK NEAFw ESCOKTDIDO, CALIF. 

Location. — In iiortlrsvest v':'o,;iier sec. 25, T. 12 .S., R. 1 AV., at highway bridge on road 
through San Pa8(iual Valley i'rom Escondido to Ilainoiia, one-foiirth mile above 
junction with Sajita Vsabei Creek, and 7 miles southeast of Escondido, San Diego 
County . 

Drain AGE akba. — 27.6 square miles (measured on topographic maps). 

Elevation. — About 425 feet above sea level. 

Records available.— February 8 to September 30, 1915, and October 1, 1910, to 
September 30, 1917. 

Gage. — Vertical staff fastened to right wing wall of bridge on down-stream face, in- 
stalled December 24, 1916. Gage pre^dously used was a vertical staff on right 
bank 15 feet above bridge; datum 1.0 foot higher than that of present gage. 

Discharge measurements.— Made from bridge or by Avading. 

Channel and control. — Sand; very shifting. A t high stages water overflows the 
highway at several points as channel at bridge is inadequate. There is back- 
water from Santa Ysabel Creek at flood stages. 

Extremes oe discharge. — 1915 and 1917: Maximum discharge recorded, February 
10, 1915 (mean daily discharge estimated, 118 second-feet): no flow for several 
months each year. 

Diversions. — ^A small ditch diverts water for irrigation above station. 

Regulation . — ^None . 

Accuracy. — Stage-discharge relation not permanent. Gage read to hundredths once 
daily. Daih' discharge computed by shifting-control method or read from poorly 
defined rating curA'es covering short periods. Records fair. 

Cooperation. — Gage-height record for 1915 and some discharge measurements fur- 
nished by C. H. Lee, consulting engineer. Los Angeles. 

Discharge nicasjrrevumia cj Giicjito Creel: near Kscondido, Calif., for J9'15-i!JJ.7. 



1915. 

Feb. 1 
7 

10 
25 

Mar. 3 
11 
27 

May 4 
17 

1916. ; 
Oct. 17 I 
Dee. 21 

1917. 
Jan. 17 



M;icie by- 



K. B. Sleppy. 
do 

F. C. Ebert . . . 

D. L. Lee 

F. C. Ebert . . . 

D. L. Lee 

F. C. Ebert . . . 

D. L. Lee 

F. C. Ebert . . . 



W. J. IsbeiL 
F. C. Ebert.. 



Gage I Dis- 
height. I charge. 



Feet. Sec-Jt: 
■ 3.5 



2.86 
2.8 j 
2.53 1 
2.88 ' 
2.77 



5.1 

90 



1.0 

28 



1917. 
Jan. 



Made by- 



Apr. 12 



May : 
June 



D. A. McClung 

E.A. BartL... 

D. A. McCbii!- 

F, C. Ebert 

IL A. licCVi<v/f '.'.'. 

Ebert and i'arll 

....do 

D. A. McClung 

F. C. Ebert ........ 

McCluiig and Holl\- 

E. A. Bartl 

F. C. Ebert 

D. A. McClung 

.-..do 



Gage 
height. 



Dis- 
clxarge. 



.80 
.80 
. SO 



Sec.-ft. 
7.8 
6.7 
2.4 
2.9 

11 

11 
4.0 
7.3 
3.6 
1.8 



DaiJ]i discharge, in sccond-feci 


, Of a 


uejito ( 


''reel- near E- 


condido, Calif., for 1915 


-1917. 


Bay. 


Feb. 


Mar. 


Apr. 


May. 


June. 


Bay. 


Feb. i Mar. 

i 


Apr. 


May. 


June. 


1915. 
1 




24 

35 
23 
19 

18 

22 
13 
16 
15 
18 

13 
17 
12 
12 
11 


.5 

^5 
.5 
.5 
.5 


34 
34 
34 
29 

56 

40 
32 
25 
23 
22 

21 
15 
14 
13 
9 


5 
5 

5 1 
5 

h\ 

2.5 

2.5 : 

2.5 i 

2.5 

2.5 j 
2.5 j 


1915. 
16 


j 
62 ! 11 
57 i 10 
54 : 10 
45 i 10 

42 '• i) 

34 ' 9 

36 : 8 

29 1 8 
40 5 

43 j 4.5 
26 : 2.5 
28 1 


.5 
.5 

'.5 

29 ' 
29 
24 
20 

20 
12 
12 
16 
24 


8 

10 

7 
7 

7 
5 
5 
5 

5 

5 

5 
5 




2 




17 


2 5 


3. 




18 


I 


4 




19 




5 




20 








21 








22 






23 






5 

5 

118 

92 

71 
81 
69 
72 






24 










25 


.5 


■ 


20 


.5 


11 


27 

28 


5 


12 


28 


1 
1 


5 


13 


29 


5 


14 


30 




.5 


15 


31 















156 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERI^ CALIFORITIA. 

Daily discharge, in second-feet , of Guejito Creek near Escondido, Calif., for 1915-1917 — 

Continued. 



Day. 



Apr. 



May. 



1916-17, 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 :.... 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



5 
12 



1.5 

5 



2 

1.5 
1.5 
1.5 



1.5 

2 

2.5 



4 

3.5 
3.5 
3.5 



3.5 

3.5 

3.5 

3 

3 

3 
3 



2.5 

2.5 

3 

3 

2 



15 
11 



3.5 
3.5 
3.5 

3.5 
3 

2.5 
2 



3 

2.5 

2 

2.5 

3 

10 

7 

3 
2.5 

2 

1.5 

1.5 



1.5 

7 
8 
7 



1.5 
1.5 
3 
3 



3 

2.5 

1.5 

1.5 
1.6 
1.5 
2 



2 

1.5 
1.5 
1 



Monthly discharge of Guejito Creek near Escondido, Calif., for 1915-1917. 



Month. 


Discharge in second- 
feet. 


Run-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Run-off 
(total in 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1915. 
February 8-28 . . . 
March 


118 
35 
29 
56 


5 
1 _ 

o" 
.5 


49.4 
11.6 

6.67 
16.1 

2.33 


2,060 
713 
397 
990 
139 


1916-17. 
October 






a 1.5 
a 1.5 
1.89 
4.97 
7.73 
3.63 
3.03 
2.31 
.40 


92 


Novembe'".. 






89 


April . . 


December 

January 


12 
27 
40 

7.5 
10 

5 

2 


1 

1.5 
1.5 
1.5 
5 
.1 
.0 


116 


Mav. 


306 




February 


429 




223 


The period. . 


118 





10.8 


4,300 




ISO 




May 


142 




June... 


24 




The year 






40 


.0 


2.21 


1,600 



a Estimated. 
Note.— Stream dry during July, August, and September, 1917. 



SAN DIEGUITO EIVBE BASIST. 



157 



WEST SAN PASQTJAL DITCH NEAR ESCONDIDO, CALIF. 

Location.— In sec. 34, T. 12 S., R. 1 W., 800 feet below intake on Santa Ysabel Creek, 
at upper end of San Pasqual Valley, 7 miles southeast of Escondido, San Diego 
County. 
Records aa^ailable. — 1912 to September 30, 1915, 

Gage. — Vertical staff fastened to side of old culvert about 800 feet below head gate. 
Discharge measurements. — Made from foot plank across ditch near gage. 
Channel and control. — Considerable silt from the Santa Ysabel is deposited in the 

ditch and causes changes in the stage-discharge relation. 
Extremes op discharge. — 1912-1915: Maximum mean daily discharge, 16 second- 
feet, February 24, 1914; no flow for several months each year. 
Accuracy. — Stage-discharge relation not permanent. There are not sufficient dis- 
charge measurements to accurately determine changes in channel, and gage-height 
record is considered only fair. Daily discharge computed from rating curves cov- 
ering short periods and by shifting-control method. Records fair. 
The intake of West San Pasqual ditch is below that of East San Pasqual and on op- 
posite side of Santa Ysabel Creek. From January 16 to August 14, if there is not 
sufficient water in the stream for both ditches. West San Pasqual may take 16 second- 
feet for 20 consecutive days out of each 30. This water is used for irrigation in San 
Pasqual Valley. 

Discharge measurements of West San Pasqual ditch near Escondido, Calif., for 1912-1915. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
chai-ge. 


1912. 
May 2 
15 


F.C, Ebert 


Feet. 
2.42 
2.40 
2.40 
1.95 

(a) 

1.44 

L90 

2.06 

2.05 

2.15 

2.32 

1.94 

2.56 
L85 
L95 


Sec.-ft. 

11.1 

' 7.0 

9.0 

.9 

3.2 
.6 
4.4 
5.7 
6.7 
7.0 
8.9 
4.7 

9.0 
3.2 
5.3 


1914. 

Mar. 6 
13 
27 

Apr. 3 
10 
17 
24 

May 8 

June 12 

1915. 
Jan. 25 
Feb. 7 
Mar. 3 
27 
Apr. 10 
July 7 
Aug. 2 


R. W. Day 


Feet. 
2.19 
2.18 
2.33 
2.12 
2.00 
1.86 


Sec^. 


E.W. Case.. . 


do 

do 

do 

do 

do 

do 

do 

do 


7.2 


23 


F. C. Ebert 


8.2 


June 23 


E. W. Case 


5.9 


1913. 
Jan. 18 
20 


W. D.McFadden 

F.C. Ebert 


4.6 
3.7 
b.O 


24 


do 

do 

-..;.dO 

do 

R. W. Day 


b .0 


Mar. 13 
19 
20 


F.C. Ebert 


1.93 
2.01 


5.3 


Apr. 21 


K. B. Sleppy 


6.5 


29 


do 

R. W. Day 


F, C. Ebert . 


ft.O 


1914. 
Jan. 19 


do 

R.W.Day 

F. C. Ebert 


2.29 
2.11 
2.27 


7.2 
5.8 
5.5 


30 


do 

do 


do 


.0 


Feb. 27 









c Old gage read 2.17 feet, 
Daily gage height, in feet, of West San 



b stream dry. 
I ditch near Escondido, Calif., for 1912-1915. 



Day. 


May. 


June. 


Day. 


May. 


June. 


Day. 


May. 


June. 


1912. 
1 




2.4 


11 






21 






2 




12 ■ 






22 


2.4 
2.4 
2.6 
2.6 

2.6 
2.55 
2.55 
2.35 
2.45 
2.4 




o 






13 






23 


1.95 


4 






14 

15 


2.3 
2.4 

2.5 


2.1 

2.2 

2.2 
2.2 
2.1 
2.1 

2.0 


24 




5 






25 




G 


2.6 
2.5 




16 


26 .... 




7 


17 


27 




8 


18 . . 


2.5 


28 




9 






19 


29 




10 






20 




30 
















31 











Note. — For the season of 1912 water was turned into this ditch on Mar. 5 and continued to flow until May 
8. Flow apportioned according to the water right after May 14. No water in ditch May 8-14, 17, 19-21, and 
June 4-13. Gage not read June 2, 3, 21, and 22. Daily discharge not computed. 



158 SURFACE WATEPv OE PACIFIC SLOPE, S0UTHEE:N' CALIFOEI^IA. 

Daily discharge, in second-feet, of West San Pasqual ditch near Escondido, Calif., for 

191S-1915. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


Day. 


i .Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


1913. 
1 


0.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 


2.5 
1.5 
.5 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 


7.5 

6 

4 

5 

4.5 

4.5 

5 

3 

4 

5 

4 
2.5 

5.5 
4 

6 


0.0 
.0 

4.6 

5.5 
2.5 

3 
3 

2.5 
.0 
.0 

.0 
.0 
.0 
.0 
.0 


.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 


0.5 

■I 

.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 

.0 
.0 
.0 


1913. 

16 

17 

18 

19 

20 

21 

i 22 

! 23 


.. 0.0 
.0 
.. 3 

. . 1. 5 
2. 5 
.. 3 


3 
3 
3 
3.5 

3 
3 

3.5 
3.5 

6.5 
6 _ 


6 

6.5 

6.5 

5.5 

6.5 

8.5 
4.5 

1 

4 
. 
5 5 

sis 

6 
6 
6.5 


0.0 

8 

9.5 
10 

10 

9 
8.5 

8.5 
8.5 

6.5 
6 

5 


1.5 
. 5 

L5 

1 

.5 
.0 
.0 

.0 

.0 
.0 
.0 
.0 

I-" 


0.0 


2 


.0 


3 


.0 


4 


.0 


5.. 


.0 


6 


.0 


7 


.0 


8 


.0 


9 


i 24.. 

j 25 


..! 4 
..j 3.5 


.0 


10 


.0 


11 


26 

27 

28.. 


.. 3 

..; 3 


.0 


12 


.0 


13 


.0 


14 


29 

30 

31 


■"i % 

..i .0 
..1 2.5 


.0 


15. 


.0 







Day. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


1913-14. 
1 


0.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
8 
.0 
.0 

.0 
.0 
.0 

1 

.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 


0.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 



.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 

.0 

.0 
.0 
10. 
8.5 
.0 

.0 
.0 
.0 
.0 
.0 
.0 


0.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
9 

9 

. 8 

.0 
.0 
.0 

.1 

10 

10 
13 

2 
3 
8 


7 

7. 5 
7 
11 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
6 
9 
1.5 

7.5 

9. 
12 
11 

13 
.0 

.0 
12 
14 
16 

.0 

^.0 


9.5 

9 

8 

8 

6 
7. 

.0 
4 

6 

7 

^.0 

8.5 
6.5 
6 

9.5 

9 

8 

8 

8 
2 

3.5 
4 


0.0 
.0 

6 

4.5 
.0 

.0 
4 

4.5 

3 

4.5 

4 
3.5 

4 
4.5 

3 
3.5 

9.5 
7.5 
10 

12 

10 
.0 
.0 
.0 

.0 

10 

12 
.1 
.0 


0.0 
.0 

.0 
7.5 

4 

.0 
.0 
.0 

2.5 
.0 

6.5 

5 

5 
10 
11 

.0 
7.5 
8 

7.5 
8 

6.5 

4 

6.5 
.0 
.0 

.0 
6.5 
9.5 
.0 
.0 
.0 


6 5 


2 


7.5 


3 




4 


g 


5 


.0 


6 


.0 


7 


.0 


8 




9 


.0 


10 .... 





11 


.0 


12 


.0 


13 


.0 


14 


.0 


15 


.0 


16 .. . 


.0 


17 


.0 


18 


.0 


19 . . . .. 





20. 


.0 


21 





22 


.0 


23 





24 


.0 


25 


.0 


26 


.0 


27 


.0 


28 


.0 


29.... 


.0 


30 . 


.0 


31 











SAIS^ DIEGUITO EIYER BASI]^. 



159 



Daily discharge^ in second-feel, of West San Pasqual ditch 'near Escondido. Calif., for 
iflij-i 9^5— Continued . 



Da5^ 



19. 
20. 



23. 
24. 
25. 



27. 

28. 





7.5 



6.5 

9 

6.5 



Mar. 


Apr, 


May. 


Juni\ 





10 





3.5 





9 





2 





5.5 





3.5 





5.5 





3.5 











3.5 





9 





3.5 





5.5 





3.5 





6.5 





3.5 





5.5 





3.5 





5.5 





3 





5.5 





3.5 





5.5 





3.5 





5.5 





3.5 





4.5 





3.5 





4.5 





3.5 





6.5 





3.5 





4.5 










4.5 


o 


a 





4.5 


3.5 


6 





5.5 


6 


a 








3.5 


5 








3.5 


3.5 





5.5 





3.5 











3.5 


5.5 








3.5 


5 








6 


6 





5 


3.5 


7 





3.5 


3.5 


7 





6 


3.5 


*? 





6 
C 


3.5 

i 



3.5 
3.5 
3.5 

3 
5 

3.5 

7 

5 

6 
6 
5 

7 
8 

S 



Note. — Daily discliai^e for year 1912-13, determined from fairly wc!!~(ii Hni'l rjiin:-^ ciu\f: i hat lor 1913-14 
and 1914-15 from rating curves covering short periods and bj^ shifting-i out i oi melUod. Ditcii dry when 
no discharge is given. 

Monthhj discharge of Wc^t Sajt Pasqual ditch near Escondido, Calif., for J 91 2-1915. 



1912-13. 

January 

February 

March 

April 

May 

June 

The year 

1913-14. 
November. . . 
December... 

January 

February 

March 

April 



Discharge in second- 
feet. 



mum. I mum. 



13 ; 

16 
9.5 



Run-off 
(total in 
acre- 
feet). 



1.02 I 
2.07 
5.10 i 
4.27 ! 

.39 

.02 



254 
24 



.30 i 
.60 i 

2.16 i 
5.32 i 
6.32 I 

4.17 j 



18 
37 
133 



1913-14. 

May 

June 

The year 

1914-15. 

January 

February 

March 

April 

May.. 

June 

July 

The year 



Discharjic in second- 



Maxi-- 
mum. 



Mini- 
mum. 



Run-off 

(totalin 

acre- 

teet). 



3.73 
1. 15 



229 
68 



.84 
2.48 
1.31 
4.12 
1..55 
3.80 



138 

81 
245 

95 
228 
360 



Note.— Ditch dry in months for which discharge is not given. 

SASTTA MARIA CHEEK NEAH RAMONA, CALIF. 

Location.— In SE. i sec. 11, T. 13 S., R. 1 W., about 7 miles below mouth of Hatfield 

Creek and 5| miles west of Ramona, San Diego County. 
Drainage area. — 57.3 square miles (measured on topographic maps). 
Elevation. — About 1,300 feet above sea level. 



160 SUEFACE WATEE OF PACIFIC SLOPE, SOUTHEEN CALIFOENIA. 

Records available. — November Q, 1912, to September 30, 1918. 

Gage. — Friez water-stage recorder on left bank just above control; installed during 

summer 1916. Before this time water-stage recorder was on right bank at same 

datum. (See PI. X, A, p. 61.) 
Discharge measurements. — ^Made from cable 370 feet below gage or by wading. 

Before flood of January, 1916, cable was 100 feet below gage. 
Channel and control. — Bed above and below station composed of shifting sand. 

Left bank is high; right bank may be overflowed during extreme high water. 

About 1,000 feet below gage valley narrows to a rocky gorge at proposed dam site. 

This narrowing results in natural storage in channel during extreme high water. 

Concrete control just below gage at an outcropping of solid rock was rebuilt 

during summer 1916. Zero flow about stage 1.7 feet. 
Extremes op discharge. — 1912-1918: Maximum stage recorded, 15.9 feet January 

27, 1916 (discharge, 7,140 second-feet); no flow for several months each year. 
Diversions. — None. 
Regulation. — None. 
Accuracy. — Stage-discharge relation practically permanent. Rating curves well 

defined. Daily discharge ascertained by applying to the rating table mean daily 

gage height determined by inspecting recorder graph, or, for days of considerable 

fluctuation, by averaging the hourly discharge. Records good. 

Discharge yneasurements of Santa Maria Creeh near Bamona, Calif., for 1913-1918. 



Made by— 



Gage 


Dis- 


Date. 


height. 


charge. 


Feet. 


Sec.-ft. 


1916. 


1.35 


a 0. 05 


Jan. 4 


1.35 


a. 05 


11 


1.35 


a. 05 


24 


1.35 


a. 05 


Feb. 3 


1.36 


a. 07 


6 
11 

15 


1.35 


O.05 


28 


1.35 


a. 05 


Mar. 3 


1. 35 


a. 05 


14 


L63 


2.1 


18 


L45 


.6 


24 


4.20 


558 


Apr. 5 


2.41 


b42 


12 


1.92 


5.6 


19 


1.70 


1.7 


25 


1.51 


.4 


May 2 


L39 


a. 15 


9 


1.37 


a. 10 


16 


1.36 


a. 08 


23 


1.35 


a.l 


30 


1.38 


a. 15 


June 6 


1.35 


a.l 


13 


1.35 


.1 


Aug. 12 
Oct. 17 
Dec. 1 


2.46 


36 


26 


2.25 


17 


29 


2.43 


31 




2.32 
2.91 


21 
113 


Jan. 18 
19 

Feb. 12 
16 
17 

Mar. 10 
20 
28 

Apr. 12 
19 

Jun. 7 
28 


2.32 
2.26 


25 
19 


2.12 


12 


1.99 
2.02 
1.86 
1.53 
1.63 


7.0 
8.7 
2.5 
.5 
1.3 


2.59 
2.25 


47 
18 


1.85 


3.6 


1.60 


1.1 


1918. 


1.37 


.02 


Mar. 8 



Made by- 



Gage 
height. 



Dis- 
charge. 



1913. 

Apr. 17 

June 16 

Dec. 6 

20 

28 

1914. 

Jan. 3 
10 
22 
29 
31 

Feb. 21 
22 
28 

Mar. 4 
7 
14 
21 

Apr. 11 
25 

May 2 
9 
16 

1915. 

Jan. 31 

Feb. 5 

16 

23 

Mar. 2 

8 

9 

16 

23 

30 

Apr. 6 

13 

20 

Mav 6 

11 

June 1 

9 

Nov. 9 



H. D.McGlashan. 

F.C. Ebert 

R. Yv' Day 

do 

do 



do , 

.....do 

F.C. Ebert.. 
R. W.Day... 

do...:.. 

do 

do 

do 

F.C. Ebert. 
R. W, Day.. 

do 

do 

do 

do 

do 

do 

do 



D. A. McClung.. 

do 

R.W.Day 

do 

.do.. 



F. C. Ebert . 
R.W.Day.. 

do 

do 

do 

do 

do 

do 

do 

W. J. Isbell. 

do 

do 

do 



W. J. Isbell 

do 

Vv\D.McFadden.... 
Day and McFadden.. 

Dav and Case 

R.W.Day 

do 

.do.. 

do.. 



F.C. Ebert 

R.W.Day 

do 

W.J. Isbell 

do 

.....do 

do 

do 

do 

do 

do 

do 

do 

do. 



F.C. Ebert 

W.J. Isbell 

Isbell and McClung . 
McChing and Case . . 



F.C. Ebert 

do 

McClung and Castinien. 

F.C. Ebert 

do 

....do 

D. A. McClung 

F.C. Ebert 

McClung and Holly 

McGlashan and Ebert. . 

D. A. McClung 

....do 



Feet. 
1.37 
1.80 
2.70 
3.45 
3.18 
2.78 
2.60 
2.64 
2.55 
2.33 
2.27 
2.37 
2.23 
2.26 
2.11 
2.03 
1.94 
1.90 
1.73 
1.74 
1.74 
1.60 
L50 
1.33 
1.70 
1.71 
2.28 



2.25 
2.77 
2.09 
2.06 
2.45 
2.23 
2.09 
2.01 
1.94 
2.12 
1.71 
1.69 



F.C. Ebert. 



Sec.-ft. 
0.1 
2.4 
75 
144 
95 
70 



62 
22 
18 
24 



5.8 
3.2 
4.6 
3.0 
2.3 
3.3 
1.8 
.7 
.05 
.05 
.02 
14 
4.0 

13 

76 
3.9 
2.6 

32 

10 
5.2 
2.0 
1.4 
6.0 
.05 

c.O 

4.7 



b Made at high\yay bridge at Ramona. 



SAN" DIEGUITO EIVER BASIIT. 161 

Daily discliar ge, in second-feet, of Santa Maria Creeh near Ramona, Calif, for 1912-1918, 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1912-13. 
1 






0.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
,05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.4 
.5 
.2 
.05 

.05 
.05 
.05 
.05 
.05 
.05 


0.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 

5.2 
274 
18 
1.7 
.4 
.4 


0.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.4 
.4 

.4 

.8 

.05 
.05 
.2 

.3 
.2 
.2 
.2 
.2 

.2 
.2 

.2 
.2 
.2 

7l" 
90 

439 
35 
21 
15 
10 

7.6 
6.9 
5.9 


0.2 
.2 
.2 
.2 
.2 

.2 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.2 
.4 

.4 
.2 
.2 
.05 
.05 
.05 

4.7 
3.8 
2.3 
1.8 
1.5 

1.0 
.9 
.3 
.3 

.3 

.3 
.3 
.2 
.2 
.2 

.2 
.2 
.2 
.1 
.1 

.1 
.1 
.1 
.1 
.1 

.2 
.2 
.2 
.2 
1.0 
.6 


0.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 


'""6:6.5' 


'"6:6.5" 




2 








3 








4 










5 












6 




0.2 
.05 
.05 
.05 
.05 

05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 








7 






.05 




8 






9 










10 










11 










12 1 




13 1 




14 










15 










16 .... 




'"":65' 


.05 




17 






18 








19 










20 










21 










22 




.05 


! 


23 






24 






1 


25 




' 


26 






1. 


27 








28 







.05 


29 






30 






1 


31 








1913-14. 
1 






:o5 

.05 
.05 

.05 
.05 
.4 
.2 
.05 

.05 
.1 
.1 
.1 
.2 


.2 
.2 
.2 
.1 
.1 

.2 
.1 
.1 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 
.05 


05 


2 






.05 ' 


3 








4 




.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 


1 ■ •■ 


5 




; 






1 




.05 


1 


8 


i . . . 


9 




t 






1 


11 




] 


12 




i 


13 




! 


14. ... 


1 


15..:.:.:::.;:;:::::: ::: ::: 
















18 






19 . . 












21 




i 


22 






23 




i 


24 




1 


25 


















28 




j 


29 ! 


i 


30 ! 




31 1 


' 



142131°— 21--WSP 447 



-11 



162 SURFACE WATER OF PACIFIC SLOPE^ SOUTHER]^ CALIFORNIA. 

Daily disdtarge, in second-feet, of Santa Maria Creelt near Ramona, Calif., for 1912- 
1 9 i 5— Continued. 



Day. 


Oct. 


Nov. 


Dee. Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1914-15. 
1 . . 






0. 1 i 0.1 


35 
420 
124 

29 

IS 

16 
13 
9.2 

11 
3^2 

ioO 
110 

60 

40 

30 

35 
41 
25 
29 
1.01 

63 
35 

29 
48 
136 

35 
29 
29 

135 
11 
11 
11 
95 

95 
9 

85 
75 
70 

70 
85 
60 
105 
55 

41 

29 
90 
71 

41 

90 

112 
90 
112 

112 
130 
68 
100 


124 
1.50 

41 

35 

29 

29 
25 
21 

18 

48 

G3 
18 
15 
13 
15 

11 

11 
9.2 
9.2 
9.2 

n 

y 

9.2 
7.6 
6.4 

115 
95 
52 

48 
• 55 

48 
41 
41 
34 
28 

24 
24 
24 
24 
24 

19 
19 
16 
16 
19 

34 
28 
24 
41 

28 

24 
24 
29 
19 
18 
16 


6.4 
4.3 
3.4 
3.4 
3.4 

4.3 
4.3 
2.7 
2.7 
2 

2 
2 

.8 

4.3 

6.4 

2.7 

2 
1.5 

15 

11 

TS. 2 
1. 3 
13 
19 
101 

16 
16 
16 
16 
16 

16 
16 
16 
16 
16 

16 
16 
16 

13 
13 

11 
11 

8.5 
8.5 

8.5 

8.5 
8.5 
6.5 
6.5 
6.5 

4.8 
4.8 
4.8 
4.8 
3.6 


192 
163 

71 

29 
112 

63 

41 

l8 
18 

18 
15 
13 
11 
11 

11 

11 

18 
15 
13 

11 
U 
11 
11 

It 

5.2 

3.6 
3.6 
3.7 
S.9 
4.0 

4.2 
i.i 
4.5 
4.8 
4.4 

4.1 
3.9 
3.7 
3.4 
3.2 

3.0 
2.9 

2.8 
2.7- 
2.6 

2.4 
2,3 

2.9 
3.0 
3.2 
3.4 
3.6 
3.6 


4.3 
4.3 
5.2 
4.3 

3,4 

3.4 
2 

1.5 
1 

.8 

.8 

1 

'.2 

'.2 

.2 
.2 

.2 

'.2 
.2 
A 

.1 
.2 

"2 

.2 



3.6 
3.6 
3.1 
2.6 
2.1 

1.7 

u 
11 

1.0 

i 

.5 
.2 

.2 
.2 
.2 

'.2 

.2 

.5 

'.2 
.2 
.2 


0.2 








.1 
.1 
.2 

.2 


.1 

A 


.2 


3 




0.1 
• \ 

1 


.2 


4 




.2 






.2 


6 




.2 


A 


.2 


7 




.2 j .1 

:^i :1 

.2 i .1 
.4 .1 

:ll :1 

.1 1 .1 

.1 { .1 

.2 i .1 
.1 .1 

.1 ; .1 

•\\ \\ 

.1' .1 

,1 .2 
.1 .1 
.1 ,1 

.1 : .1 
.1' .1 
.1 1.0 
.1 1 860 
.1 ' 458 
.1 i 41 


.2 


8. 




.2 


9 




.1 


10 




.1 


11 




.1 


12 




.1 


13 




.1 


14 




.1 


15 




.1 


1& 




.1 


17 




.1 


18 




.1 


19 






20 






21 






22 ..... 




23 ' 




24 . ............. 




25..... ' .... 


:: 


26 .... 




27 






28 ....... 






29 




30 




31 




1915-16. 
1 






.2 

.2 
.2 




2 






3 

4 






5 ... 




6 






7 


L. 






8 

9 






o2 

.2 

A 

2,4 
1.5 
1.0 

2.5 
4.0 

1,200 

12,820 
i 1,960 
! 914 

: 283 

78 
•-- 

1,970 
;4,960 
j 1,370 

22a 

322 




10 

11 






.2 


12 






2 


13 

14 




.2 

'.2 

.2 
.2 

.2 


.2 
2 


15 

16 

17 

18 

19 

20 


i 

1 


.2 

.2 

.2 
.2 




21... 

22 

23 

24 









25 








26 


! 






27 








28 




! 






29 










30 




1 


.2 




31 


1 


1 


.5) 1.50 





SAN DIBGUITO RIVER BASIN. 



163 



Daily discharge, in second-feet, of Santa Maria Creek near Ramona, Calif, for 1912- 
' I9i^— -Continued. 



; Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


Myy. 


June. 


July. 


1916-17. 
1 




0.1 


0.1 

1^4 

26 

12 

15 
4.4 
4.2 
4.2 
4.2 


4.3 
4.3 
4.3 

4.4 
4.4 

4.4 
3.9 
3.2 
2.6 
1.6 

1.6 
3.4 
22 

18 
9.5 
17 

8;^ 

57 

42 
22 
15 
11 

8.5 

8.5 

8.6 

8.5 

8.5 

8 

8 

.05 

.05 

.05 

.05 

.1 

.1 

.1 

.1 

.1 

.1 

.1 
.1 

.2 
.2 
.2 

.1 
.1 
.1 
.1 
.1 

.1 
.1 
.1 
.1 
.1 

'.2 
.2 
.1 
.1 
.1 


6.5 
4.8 
4.4 
3.4 
3.6 

3.6 
3.4 
3.2 
3.4 

3.4 

2.9 
3.4 
3.4 
3.4 
2.6 

.2.2 

18.0 

42 

31 

16 

13 

18 
82 
26 
23 

20 
17 
14 

.1 
.05 
.05 
.05 
.05 
.05 
.05 
.05 
.05 
.05 
.05 
.05 
.05 
.05 
.05 

.05 

.1 

.3 

.1 

.1 

.1 

.3 

.2 

.1 

.1 

.1 

.1 

.1 


12 
10 

8.5 

8 

7.5 

5^5 
6.5 
11 

8.5 
7.5 
5.5 
5.5 
6.5 

4.4 
3.6 
3.6 
3.6 
3.6 

3.6 
3.4 
2.6 
2.4 
2.4 

2.4 
2.2 
1.9 

1.8 
1.7 
1.6 

.1 
.1 
.1 
.1 
.1 
.1 
.4 
8.5 
.2 
.4 

131 
670 
110 

15 

8.5 
6 

4.8 
101 

72 

21 
12 

8.5 

7.5 

6 

5.5 

4.8 

3.9 

3.4 


1.1 

.8 

.4 

.3 

.2 
.1 

.2 
.8 
1.5 

1.3 
1.0 
.8 
].0 
1.6 

16 

21 
6.5 
3.9 
2.9 

2.6 
1.9 
1.5 
1.4 
1.4 

1.9 
10 
12 
11 

1.9 

2.4 
2.6 
3.2 
2.6 
1.9 

2.4 
1.7 
1.2 
1.1 
1.2 

1.3 
1.2 
1.6 
1.6 
1.3 

.8 
.6 
.3 
.2 
.1 

!i 

.1 
.1 

■' 

■\ 

.1 
.1 


1.4 
1.1 
.9 
.9 

.8 

.3 
.2 


0.9 
.2 
.1 
.1 
.1 

.1 
.1 




2 






3 






4 






5 






6 






7 






8 




.2 






9 




I'.k 

1.1 

.5 

'.2 






10 








11 








12 








13 








14 








15 




.2 

.1 
.1 
.3 






16 








17 








18. 








19 








20 




.2 

1^2 

2.3 






21 








22 


0.1 
.1 
.1 
.1 

.1 
.1 
.1 
.1 

.1 
.1 






23 







24 







25. 


.9 ' 




26 ... 


2.4 
1.2 
.9 
.9 
1.4 
1.4 

.1 
.1 






27 . 






28 






29 . 






80 






31 







1917-18. 
1 


.1 




2 










3 













4 












5 












6 











7 












S 












9 








! 


10 .. . . 










11 










12 . 










13 












14 i 










15 ! 










16 ' 










17 i 










18 ! 








19 ! 










20 1 










21 






_ 1 






22 










23.. 










24 




.05 
.05 

.05 
.05 
.05 
.05 
.05 
.05 






25 








26 








27 




■J 

'A 






28 






29 






30 . . 






31 






! , 









Note.— No flow Nov. 6, 1912, to Feb. 22, 1913; Mar. 29 to Dec. 21, 1913; May 9 to Dec. 3, 1914; and July 
19 to Sept, 30, 1915 except small quantity of ground water rising to the surface at rock dvke at gage. No 
gage-height record Jan. 11-15, 1916; Feb. 7-13, 27 to Mar. 3; June 3-5, 7-12, 28 to July 10; and July 19-31; 
discharge interpolated from discharge measurements or determined bv comparison with records at stations 
on Santa Ysabel Creek. No flow, Oct. 1 to Dec. 12, 1915, July 1 to 10 and Julv 19 to Sept. 30, 1916. Water- 
stage recorder not in operation Dec. 30, 1916, to Jan. 5, 1917 and Feb. 25 to Mar. 2— discharge interpolated. 
Practically dry Oct. 1 to Dec. 23, 1917, and June 2 to Sept. 30, 1918. No gage-height record Mar. 12-15— dis- 
charge estimated. 



164 STJKFACE WATER OF PACIFIC SLOPE, SOUTPIERN CALIFORNIA. 

Montlily discharge of Santa Maria Creek near Ramona, Calif., for 1912-1918. 







Discharge in 


second-feet. 


Month. 


Maximum. 


Minimum. 


Mean, 


Rim-off 
(total in 
acre-feet). 


1912-13. 
November 


0.2 
.05 
.05 
.8 
.4 
.05 


0.05 
.05 
.05 
.05 
.05 
.05 


0.06 
.05 
.05 
.12 
.12 
.05 
.05 
.05 


3 

3 

3 

6.7 

7.4 

3 

3 


December 


January 


February 


March 


April 


May 


June 






3 








The period 








32 1 













1913-14. 
November 


.05 

.5 

274 

439 
4.7 
.4 
.2 
.05 


.0 
.05 
.05 
.1 
.1 
.05 
.05 
.0 


.04 
.08 
9.72 
25.2 
.70 
.13 
.08 
.01 


2 

5 

598 

1,400 

43 


December . . 


Januarv 


February . . 


March 


April 


7.7 
5. 
.6 


May ... 


June 




The year 


439 





2.84 


2,060 




1914-15. 
November 


.1 

.4 
860 
450 
150 
101 
192 
5.2 

.2 




.1 
9.2 
5.2 

.8 
5.2 

.1 



.09 
.13 

44 

85 

24.9 

10.6 

31 
1.17 
.08 




December . 


g 


Januarv . . 


2,700 
4,720 
1 530 


February. 

March 


April 


'631 
1 910 


May 


June . ... 


' 70 


July 


5 






The year 


860 





15.9 


11 eoo 






1915-16. 
December 


.5 
4,960 
135 
115 
16 
4.6 
3.6 
.2 


.0 
.0 
29 
16 
3.6 
2.3 
.2 
.0 


.06 

545 

85.7 

33.8 

11.4 

3.39 

.98 

.10 


4 


January 


33,500 
4,930 
2 080 


February 


March 


April . ..- 


'678 


May 


208 


June 


58 


July 


6 






The year 


4,960 

.1 
.1 

26 

83 

82 

12 

21 
2.9 
.9 


.0 


57.1 


41,500 




1916-17. 
October 


.1 
.1 
.1 
1.6 
2.2 
1.6 
.1 
.1 
.0 


.10 
.10 
2.38 
13.3 
13.4 
5.12 
3.59 
.78 
.05 


6 1 


November , 


6.0 


December 


146 


January 


818 


February 


744 


March 


315 


April 


214 


May 


48 


June 


3 






The year 


83 


.0 


3.18 


2,300 




1917-18. 
December 






«.05 
.113 
.091 
39.9 

1.01 
.10 

O.05 


3.1 


January 


.2 
.3 
670 
3.2 
.1 


.05 
.05 
.1 
.1 
.1 


6.9 


February 


5.1 


March 


2,450 
60.1 


April 


May 


6.1 


June 


3.0 










The year 


670 


.00 


3.50 


2 530 







a Estimated. 
Note. — No flow in months for which record is not given; records therefore represent complete years. 



SA-N LUIS KEY RIVER BASIN. 
MISCELLANEOUS MEASUREMENTS. 



165 



The following miscellaneous measurements have been made in 
the San Dieguito River basin: 

MiscellaneGus discharge measurements in San Dieguito River drainage basin. 



Date. 


Stream. 


Locality. 


Gage 
height. 


Dis- 
charge. 


July 13,1914 
Sept. 8,1914 
Apr. 22,1916 
May 2, 1912 

June 8, 1912 
June 22,1912 
June 12,1914 
Apr. 10.1915 
Nov. 17,1917 
Dec. 25,1917 
May 2, 1912 

May 15,1912 
May 23,1912 
June 23,1912 


Santa Ysabel Creek . . . 
do 


Santa Ysabel ranch near Santa Ysabel 


Feet. 


Sec.-ft. 
4 


.do 




.1 


do 


do 




19. 


East San Pasaual 

ditch. 
do 


Sand box, 9 miles from Escondido, NW. i sec. 

36,T. 12S., R. 1 W. 
do 




12 1 




3 5 


do 


do 




2.9 


do 


Head gate 


0.35 
4.41 


3.0 


do 


do - 


8.0 


do 


20 feet before mtake 


1.5 


do 


do 




3.8 


West San Pasqual 

ditch. 
do 


NE. 4 sec. 34 T. 125 R. 1 - 




11.1 


do 




7.0 


do 


do 




9.0 


.do 


do 




.9 


Mar. 29,1913 


Santa Fe ranch ditch. . 


Pumping plant on Santa Fe ranch, 4-| miles 
northeast of Del Mar. 




6 7 







ESCONDIDO CREEK BASIN. 

Measurements of the flow of Escondido Creek are listed in the 
following table: 

Miscellaneous measurements in Escondido Creeh drainage basin. 



Date. 


Locality. 


Gage 
height. 


Dis- 
charge. 


Nov. 14,1917 
Jan. 26,1918 
Jan. 30,1918 
Feb 18 1918 




Feet. 


Sec.-ft. 
02 


do . . . . 


2.40 
2.00 
2.17 

2.28 
2.09 
2.28 
2.85 
1.50 
1.5-1 
1.42 
1.39 
1.28 
1.20 


n 


. . . .do 


.08 


.. . do 


1 2 


Feb. 22,1918 


. . . .do 


4.8 


Feb 27 1918 


. . . .do 


.28 


Mar. 8, 1918 


. . . .do 


3.6 


Mar 13 1918 


. . . .do 


107 


Mar. 16.1918 


. . . .do. 


13 


Mar. 23^1918 


. . do . . . . ... 


12 


Mar 28 1918 


do 


4 4 


Am. 6, 1918 


. . . .do 


2.7 


Apr 11 1918 


.. ..do 


1.7 


Mar. 18,1918 


do 


1.0 









SAN LUIS REY RIVER BASIN. 
GENERAL FEATURES. 

San Luis Rey River drains an area of about 565 square miles, 
lying wholly in the northern part of San Diego County and extending 
from the crest of the Coast Range to the Pacific Ocean, a distance of 
65 miles, with a maximum width of about 16 miles. 

The river is formed by many small streams, which have their 
sources in the higher elevations of the Coast Range and come 
together at the lower or west end of what is known as Warner's 



166 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORInIA. 

Valley. Below this point the river flows for 10 miles through a deep, 
narrow canyon with a heavy grade, then over a sandy and gravelly 
bed with light grade for some 40 miles, and finally discharges into 
the Pacific Ocean at Oceanside. 

Altitudes within this basin range from 50 to 500 feet in the foot- 
hills in the vicinity of Oceanside and from 500 to 6,000 feet on the 
mountains. Palomar Mountain, the highest peak in the basin, has 
an elevation of 6,126 feet above sea level. The upper portion of the 
basin is more or less rolling, and several of the valleys are under 
cultivation and are used extensive^ for stock raising; the middle 
part, occupied by the river in its canyon, is rough; on the lower 
reaches the surface becomes less rugged, merging into the foothills, 
which extend to the coast. The geology of the basin is described 
in the report on the geology and ground waters of the western part 
of San Diego County, by A. J, Ellis and C. H. Lee, published by the 
Geological Survey as Water-Supply Paper 446. 

The basin is poorly forested. Some fairly good timber is foimd 
at the higher elevations, but the greater part of the cover is brush 
and gTass and a scattered growth of oaks. 

The mean annual precipitation in this basin probably ranges from 
10 to 50 inches, gradually increasing with altitude. It occurs almost 
entirely as rain, snow appearing only occasionally on the high 
elevations. 

Small areas are irrigated along the river, and water is diverted 
and used for irrigation and municipal supply at Escondido and 
vicinity. A reservoir could be constructed at the lower end of 
Warner's Valley which would store the entire normal flow of the river. 

GAGING-STATION BEGOKDS. 

SAN LUIS StEY KIVES i ITEAS, WAEITER SPRINGS, CALIF. 

Location. — In NE. ^ sec. 17, T. 10 S.. R. 3 E., in San Jose del Valle grant, 3| miles 
above junction ^Adlli West Fork of San Luis Hey River, and 4 miles northwest of 
Warner Springs, San Diogo County. 

Drainage area. — 35.3 sqiiore miles ^measured on topographic mnps). 

Elevation. — About 2,900 feet above sea level. 

Records available. — January 25, 1913, to November 18, 1915. (Occasional dis- 
charge measuremenrs until June 27, 1916.) 

Gage. — Sanders & Rising waier-^^'-ige recorder on left bank; staff in two sections on 
opposite bank. 

Discharge measurements. — Made by wading near gage. 

Channel and control. — Sand; shifting. A concrete control v/as built across chan- 
nel, just below gage, but it did not prove very effective on account of the accumu- 
lation of sand. 

Extremes of discharge. — 1913-1915: Maximum stage recorded, about 4.0 feet at 
crest of flood of January 27, 1914 (discharge, 233 second-feet); minimum stage 
recorded, 2. 2 feet August 23 to 25, 1914 (discharge 0.4 second-foot.) 

1 Local name Puerta la Cruz Creek. 



SAN LUIS REY RIVER BASIIS". 



167 



Diversions. — ^None. 

Regulation. — None. 

Accuracy. — Stage-discharge relation not permanent. Mean daily gage heights deter- 
mined by inspecting recorder graph. Daily discharges computed by interpolation 
between discharge measurements, from rating curves covering short periods, a-nd 
by comparison with record of flow at station on San Luis Rey River near Mesa 
Grande, Discharge for high-water periods, especially when not covered by gage- 
height records, estimated as 12 per cent of flow at Mesa Grande. Records fair. 

Discharge measurements of San Luis Rey River near Warner Springs, Calif. , for 1913-1916. 



Date. 


Made by- 


Ga?e 
height. 


Dis- 
charge. 


1 Date. 


Made !iy— 


Gage 
height. 


Dis- 

char^Te. 


1913. 




Feet. 


Sec.'ft. 


1914. 




Fccf. 


Sec.-fl. 


Jan. 25 


W. J. Isbell 


2.22 
2.24 
2.23 


1.0 
1.0 
1.0 


Apr. 1 

8 

1 15 


J. E. Ridder 


2.59 
2.33 
2.27 


1.2 


30 


do 

do 


W, J. Isbell.. 


.9 


Feb. 4 


do 


.8 


11 


do 


2.23 


.9 


22 


do 


2.31 


1.3 


19 


F C. Ebert. .. 


2.22 
2.20 
2.19 


.9 
1.3 
1.1 


29 

May 6 

13 


do 

do 

do 


2.23 
2.20 
2.20 


1.0 


Mar. 2 


W J Isbell. 


.8 


16 


....'.do ". 


.8 


27 


do , 


2.20 


.8 


20 


do 


2.20 


1.0 


Apr. 3 


do 


2.20 


.9 


27 


do 


2.20 


.9 


10 


do 


2.17 


1.0 


June 3 


do 


2.18 


.6 


17 


do... 


2.18 


.9 


18 


do 


2.18 


.6 


23 


do 


2.17 


.8 


July 9 


do 


2.17 


.7 


May 1 


do 


2.19 


.8 


Aug. 20 


F.C. Ebert 


2.18 


.6 


' 10 


F.C. Ebert 


2.19 


.7 


Sept. 10 


W.J. Isbell 


2.18 


.8 


18 


W. J. Isbell 


2.18 
2.18 


.8 
.7 


Oct. 20 
Nov. 20 


do 

do 


2.18 
2.17 


1.0 


23 


do 


.8 


31 


do 


2.18 


.7 


Dec. 9 


do 


2.16 


1.2 


June 6 


do 


2.17 


.7 










12 


do... 


2.18 


.7 


1915. 








14 


F.C. Ebert 


2.18 
2.18 


.6 

.8 


Jan. 27 
Feb. i 


W. J. Isbell. 


2.17 
2.80 


.8 


18 


W. J.lsbell 


do 


33 


25 


do 


2.19 


.6 


3 


do 


3.10 


51 


July 1 


do 


2.20 


.6 


12 


do 


3.30 


SO 


15 


do 


2.20 


.5 


18 


do...... 


2.81 


15 


21 


do 


2.21 


.5 


Mar. 4 


da 


2.80 


32 


Aug. 19 


do 


2.21 


.5 


11 


do 


2.72 


19 


25 


do 


2.20 


.4 


18 


do 


2.57 


6.y 


Sept. 2 


do 




.6 


25 


do 


2.44 


3.7 


10 


do 




.6 


Apr. 8 


do 


2.32 


1.8 


18 


do 


"'2.' 23" 


.6 


16 


do 


2,28 


1.8 


22 


do 


2.18 


.6 


23 


do 


2,58 


9.2 


29 


da. 


2 22 


.5 


May 7 


do 


2.80 


35 


Oct. 6 


F.C. Ebert 


2.21 
2.21 
2.20 


.8 
.7 
.7 


13 

20 
27 


R. W. Dav... 


2.66 
2.58 
2, 47 


ii 


14 


W.J. Isbell 


W. J Isbell 


7 6 


20 


do 


do 


3.2 


Nov. 3 


do 


2.21 


.6 


June 3 


do 


2,36 


1.3 


10 


do 


2.21 


.7 


10 


do 


2.32 


1.6 


14 


do-. 


2.22 


1.0 


24 


do 


2.32 


l.\ 


17 


do. 


2.22 


1.0 


July 1 


do 


2.30 


1.2 


24 


do 


2.20 


.9 


8 


do 


2.32 


1.0 


Dec. 2 


do 


2.21 


1.0 


15 


do 


2.31 


l.l 


10 


do 


2.22 


1.0 


22 


do 


2.31 


1.2 


17 


....^o.^^/.V..V.V.'.V.V^ 


2.22 


1.0 


29 


do 


2.30 


1.1 


23 


do 


2.22 


1.1 


Aug. 5 


do 


2. 28 


i.i 










12 


do 


2.29 


i. 1 


1914. 


W.J IsbelL... 


2.20 


0.8 


19 
26 


-do.-.- 


2.28 
2.28 


1.0 


Jan. 1 


do 


1.1 


8 


. . do ,. 


2.18 


.9 


Sept. 9 


do 


2.27 


1.0 


14 


do... 


2.17 


.8 


16 


do 


2.28 


1.4 


17 


.....do........... 


2.34 


3.1 


23 


do 


2.27 


1.2 


22 


do 


2.18 


.8 


30 


do 


2.28 


1.2 


30 


do 


2.22 


1.9 


Oct. 14 


do 


2.27 


1.1 


Feb. 4 


do 


2.19 


.8 


28 


do 


2.29 


1.2 


11 


do 


2.17 


.7 


Nov. 11 


do 


2.30 


LO 


18 


do 


2.22 


1.0 


18 


do 


2.31 


1.1 


19 


do 


3.70 


181 










22 


do 


2.90 


61 


1916. 








23 


do 

Jas. iRidder 


2.78 
2.75 


36 
13 


Feb. 11 

IS 


W.J. Isbell 


al.30 
«1. 35 


38 


25 


do , . 


22 


Mar. 4 


W, J. Isbell... 


2.64 
2.62 


1.0 

.8 


Mar. 9 
24 


do 

do 


« .80 
a .60 


12 


11 


do 


13 


18 


do 


2.55 


.9 


30 


do 


a . 42 


6.8 


25 


do 

do 


2.63 
2.48 


.9 
1.1 


June 27 


-do.... 




2.2 


30 









1 Temporary gage. 



168 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of San Luis Rey River near JVarner Springs, Calif., for 

1913-1916. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept 


1913. 
1 










1.0 
1.0 
1.0 
1.0 
1.5 

2.0 
2.0 
4.0 
2.5 
1.5 

.9 
.9 
.9 
.9 
.9 

.9 
.9 
.9 
.9 
.9 

6.0 
21 
5 

7 
25 

10 
15 
3.0 

1.5 
1.5 
1.0 

.8 
.8 

.8 
.8 
.8 
.8 
.8 

\l 

.7 
.7 
. 7 

.7 
.7 
1.0 
98 
183 

204 
113 

38 

22 

13 

12 
10 
9 


1.5 
1.3 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
2.5 
2.0 
1.5 
1.1 

1.1 
1.1 
1.1 
1.1 
1.1 

1.1 
1.5 
2.0 
3.0 
1.5 

1.0 

.8 
.8 
.8 
.8 
.9 

6.0 
3.0 
1.0 
1.0 
1.0 

1.0 
.9 
.9 

.8 
.8 

.8 
.8 
.8 
.8 
.9 

.9 
.9 
.9 
.9 
.9 

.9 
.9 
.9 
.9 
.9 

.9 
1.0 
1.0 
1.1 
1.2 
L2 


0.9 
.9 
.9 
.9 
.9 

.9 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
.9 
.9 

.9 
.9 
.9 
.9 
.9 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 

1.2 
1.2 
1.1 
1.1 
1.0 

1.0 
.9 
.9 
.9 
.9 

.9 
.9 

.8 
.8 
.8 

.8 
.9 
1.0 
1.0 
1.1 

1.2 
1.3 
1.3 
1.2 
1.2 

1.1 
1.1 
1.0 
1.0 
1.0 


0.8 

.8 
.8 
.8 
.8 

is 

.8 
.8 
.8 
.8 
.8 

\l 
7 
fj 

1.0 
.9 
.9 
.9 
.9 

■i 

.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 

.9 
.9 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 

]9 

.9 
.9 
.9 

.8 
.8 
.7 


0.7 

\% 
.6 
.6 

.7 
.7 
.8 
.8 
.8 

.7 
.7 
.7 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.7 
.7 
.6 

ie 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 


0.6 
.6 
.6 
.6 
.6 

.6 
.6 
.5 
.5 
.5 

.5 
.5 
.5 
.6 
.5 

.5 
.5 
.5 
.5 
.5 

.5 
.5 
.5 
.5 
.5 

.5 
.5 
.5 
.5 
.5 
.5 

.7 
.7 

.1 

.7 

.7 
.7 
.7 
.7 
.7 

.7 
.7 
.7 
.7 
.7 

.7 

'.1 
.7 

.7 
.7 
.7 
.7 
.7 

.7 
.7 
.7 
.7 
.7 
.7 


0.5 
.5 
.5 
.5 
.5 

\i 

.5 

.5 
.5 

.5 

.5 
.5 
.5 
.5 

.5 
.5 
.5 
.5 
.5 

.5 
.5 
.4 
.4 
.4 

10 
.6 
.6 
2.0 
.8 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 

.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 
.6 


0.6 


2.. 










.6 


3 










6 


4 . . .. 










.6 


5 










.6 


6 










6 


7 










.8 


8 










.6 


9 










6 


10 










.6 


11 










.6 


12 










.6 


13 










6 


14 










.6 


15 










.6 


16 










.6 


17 










6 


18 










.6 


19 










.6 


20 










6 


21 










.6 


22 










6 


23 










.6 


24 










.6 


25 








1.0 

1.0 
1.0 
1.0 
1.0 
1.0 
1.0 

.8 
.8 
.8 
.8 
.9 

.9 
.9 
.9 

.9 
.9 

.9 

.8 
.8 
.8 
1.0 

2.0 
3.1 
4.5 
6.0 
3.0 

1.5 
.8 
.8 
.8 

3.0 

105 
120 
21 
20 
1.9 
1.5 


.6 


26 








.5 


27 








.5 


28 








.5 


29 








.5 


30 








.6 


31 










1913-14. 
1 


0.7 
.7 

.7 
.8 
.8 

.8 
.8 
.8 
.8 
.8 

.7 
.7 
.7 
.7 
.7 

.7 
.7 
.7 
.7 
.7 

.7 

.7 

.7 
.7 
.7- 

.7 
.7 
.7 
.6 
.6 
.6 


0.6 
.6 
.6 
.6 
.6 

.6 

.7 
.7 
.7 
.7 

.7 
.7 
.8 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

.9 
.9 

.9 
.9 
.9 

.9 
.9 
.9 
1.0 
1.0 


1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.1 
1.1 
1.1 
1.1 
1.1 

1.1 

1.0 
1.0 
.9 
.9 

.8 




2 




3 




4 




5 




6 




7 




8 




9 




10 


.8 


11 




12 




13 




14 




15 




16 




17 ., 




18 




19.... 




20 




21 




22 




23 




24 




25 




26 




27 




28 




29 




30 




31 





SAN LUIS KEY EIVEE BASHsT. 



169 



DoMy discharge, in second-feet, of San Luis Rey River near Warner Springs, Calif, for 
1913-1916— Goiitinued. 



Day. 



14 



1914-15. 

1 

2 

3 

4 

5 

6 

7.... 



28. 



Day. 



0.7 

.7 
.7 

.7 
.7 



.9 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 
1.0 



1.0 

1.1 



1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 
1.2 



1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 



.9 
8.0 
1.0 
2.0 
5.0 



19 
175 

96 



33 
126 
51 
14 

8.5 

3.5 
2.0 
2.0 
3.5 
175 

1S5 
80 
69 
54 



5.5 
5.5 



4.5 
4.5 
4 
3.0 

3.5 
3.5 
3.5 
3.5 
3.5 
3.5 



Apr. 



5 

3.5 

5 
10 
20 



May. 



2.0 

1.3 ! 



1.4 
1.5 
1.5 



1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.4 
1.4 
1.4 
1.4 
1.4 

1.4 
1.3 
1.3 
1.2 
1.2 



Oct. 


Nov. 


1.2 


1.1 


1.2 


1.1 


1.2 


1.1 


1.2 


1.1 


1.2 


1.1 


1.1 


1.1 


1.1 


1.1 


1.1 


1.0 


1.1 


1.0 


1.1 


1.0 



Day. 



1915-16. 

11 

12 

13 

14 

15 

16 

17 

18 

19 



Oct. 


Nov. 




1.0 




1.0 




1.0 




1.0 




1.0 




1.1 




1.1 




1.1 











Day. 



1.2 
1.2 



1.3 
1.4 



1.5 
1.5 
1.4 

1.3 
1.3 
1.2 
1.1 



Aug. 



Sept. 



1915-16. 

21 

22 

23 

24 

25 

2G 

27 

28 

29 

30 

31.... 



1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 
1.2 



1.1 
1.1 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.1 
1.2 
1.2 
1.3 
1.4 

1.4 
1.4 
1.3 
1.3 
1.3 

1.3 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 



Note.— Daily discharge determined as follows: Jan. 25 to Mar. 26, 1913, estimated from measurements 
and by comparison with records obtained at Mesa Grande; Mar. 27 to Aug. 25, 1913, interpolated between 
measurements; Aug. 26-31, 1913, estimated by Volean Land & Water Co.; Sept. 1-30, 1913, estimated from 
discharge measurements; Oct. 1, 1913, to Jan. 25, 1914, Jan. 29 to Feb. 18, and Mai-. 6 to Sept. 30, 1914, inter- 
polated between measurements and by comparison with records of flow at Mesa Grande and on West Fork; 
Jan. 26-28, 1914, estimated as 12 per cent of flow at Mesa Grande; Feb. 19 to Mar. 4, 1914, by shifting-control 
method; Oct. 1, 1914, to Sept. 30, 1915, from rating curves covering short periods, interpolated between 
measurements, and shifting-control method, except high water. For September, 1914, see table of monthly 



170 SURFACE WATER OF PACIFIC SLOPE^ SOUTHERIST CALIFORNIA. 



Monthly discharge of 


San 


L 


lis Rey River near Warner Springs, Calif., j 


"(-.?■ 191. 


3-1915. 


Month. 


Discharge in s 
feet. 


3Cond- 


1 
Rim-off ;,j 
(total in;' T,r.,„n. 


Disch 


arge in s 

feet. 


3Cond- 


Run-off 
(total in 


Maxi- 
mum. 


Ydni- 
mum. 


Mean. 


acre- 
feet). 





Maxi. 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1913. 
January . . , 


1.0 
2.5 
3.0 
1.0 

.8 
.8 
.Si 
10 
. 6 


1.0 

■I 

.7 
.6 
.5 
.4 
.5 


1.0 

4. 23 
1.39 

.89 
.74 
.68 
.52 
.87 
.59 


14 
235 
85 
53 
48 
40 
32 
53 
35 


1913-14. 

August 

September 

The year 

1914-15. 
October 


O.ii 


0.6. 


0.60 
.70 


37 


February 


42 


April 


204 


.3 


3. 45 


2,490 


June . 


1.0 

1.0 
i.2 
175 
185 

46 

33 

62 
2 

1.-) 
1.1 
1.4 


1.0 

.8 
2.0 
3.5 
1.8 
2.0 
1.2 
1.1 
1.0 
1.0 


.89 
.87 
1.18 
11.8 
39.4 
14.2 
5. 21 
17.9 
1.45 
1.23 
1.08 
1.17 










November 

December 

Jamun-y 

February 

March 

April . . 






52 


September 


73 

720 


The period . . 


25 


. 4 


1.21 


593 


2,1^ 

87;? 




.8 
1.0 
1.1 
120 
204 
6 

1.3 
1.0 
.7 




.71 
.83 
1.01 
9. 35 
25.6 
1.16 
1.02 
.88 
.60 
.70 


44 
49 
62 
575 
1,420 
71 
61 
54 
36 
43 


310 




May. 


1, 100 






6 
8 
8 
7 
8 
8 

6 




86 


November 

December 


July 


7f) 


August 


66 




September 

The year 

1915. 
October 




February 


70 


March 


185 


.7 


7. 85 




April 


5,080 


May..... 


1.2 
1.1 


1.1 
1.0 


1.15 

1.00 


71 


Juiv 


November 1-18.. 


38 











SAN LITIS B,EY RI^ER AT WARlSfER DAM SIl'E, NEAR MESA GRANDE, C AUF. 

The records in the following tables were furnished by W. S, Post, 
consulting engineer, Los Angeles, Calif. 

Discharge measurements of San Lvis Rey River at Warner clam site, near Mesa Grande, 

Calif'., for 1905-6. 

[Made by G. A. Haines.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


Gage 
height. 


DiS' 

charge. 


1905. 
Dec. 6 


For 
0,60 
.64 

.77 
1.80 
2.40 
3.00 
.74 
.78 


Srr.-ff. 
6.9 
7.1 

7.6 
175 
835 
1,6.50 
9.8 
10.5 


1908. 
Feb 6 


Feet. 
0.89 
.90 
.88 
.82 
.94 
.99 
2.25 
2.15 
1.31 
1.10 


Sec.-ff. 
16.7 
18.7 
22.7 
14.9 
23. 3 
37 

519 

460 

105 
.39.9 


1906. 
Feb. 18 


Feet. 
1.04 
1.17 
.98 
.91 
1.01 
1.01 
1.03 
1.00 
.98 
1.05 


Sec-ft. 
Si. 6 


19 


6 


21 


74 4 




9 


22 


32.3 


1906 


10 


23 


26 


Jan. 12 


10 


24 


23.5 


19.. 


i 11 


24 


22.2 


^9 


I 15 


25 


19 4 


19 


' 15 


26 


17.3 


Feb. 4 


16 


27 


isi 


5 


17 


27 


14 9 









Note.— All measure! •lents in above I able made by surfafce floats. 

Monthly disch mr/e of San Luis Rey River at Warner dam. site, near Mesa Grande, Calif., 

for 1905-6. 



Month. 


Discharge in second-foet. 


ilaiuiall 
(inches). 


Run-off 
(total in 




Maximum. 


Minimum. 


Mean. 


acre-feet). 




7.4 
1.650 
'519 
13,875 
401 
300 
67.4 
61.5 


6. 9 
7.4 
9.6 
15.3 
81.1 
52.1 
10.6 
2.5 


28. S 
45. 3 

766 

174 
47.6 
28.1 
9.47 


0.14 
3.99 
3.05 
20. 23 
2.50 
2.02 
.03 
1,52 


43:5 


January 

February 

March 


1,771 
2,516 
47,090 


April 


9,il5 


Mav 


4,9915 
1,672 


Juue. . • . . 


July 


582 







Note. -Maximum and mJaimum discharges in above table are absolute extremes of discharge, not mean 
daily values. 



SAN LUIS BEY RIVER BASIN. 



171 



SAH LUIS ICEY B-IVEB ITEAB MESA GitAJSTDS, CALIF. 

Location. — In NW. ^ NE. f sec. 9, T. 11 S., R. 2 E,, at concrete weir 1 mile below 
Warner dam site, 1 mile below mouth of Oarrizo Creek, and about 5 miles north of 
Mesa Grande, San Diego County, 

Drainage area. — 209 square miles (measured on topographic maps). 

Elevation. — About 2,650 feet above sea level. 

Records available. — October 1, 1911, to September 30, 1918. 

Gage. — ^Friez water-stage recorder on left bank just above weir. Barrett & Lawrence 
water-stage recorder at same site and datum was destroyed by flood of January, 1916. 
March 18, 1915, a vertical staff was installed at weii- for use during low water; datum 
same as that of water-stage recorder. Previous to June 13, 1912, gage was just 
above cut-off wall at dam site. Original datum was not maintained. 

Discharge measurements. — Made from cable about a mile above gage or by wading. 

Channel and control. — -Sand and gravel; somewhat shifting. Concrete weir which 
served as control for gage was destroyed by flood of January, 1916. 

Extremes of discharge. — 1911-1918: Maximum stage recorded, 18.0 feet January 
27, 1916 (discharge, 58,600 second-feet); minimum stage recorded, 0.09 foot, Aug. 
31, 1914 (discharge, 0.2 second-foot). 

Diversions. — None. 

Regulation.— None. 

Accuracy. — Stage-discharge relation not permanent as sand collects at weir and causes 
slight chang-es in conditions. Control shifting after flood of January, 1916. Rat- 
ing curves, usually covering short periods, are fairly well defined . lilean daily gage 
heights determined by inspecting recorder graph. Daily discharge ascertained by 
applying mean daily g-age height to rating table or by shifting- control method. 
Records good. 

Discharge inemurements of San Luis Rey River near Mesa Grande, Calif., for 1911-1918. 



Date. 


Made by— 


Ga?e 
height. 


Dis- i 
charge. , 


Date. 


Made by- 


Gag-e 
height. 


Dis- 
charge. 


1911. 
Oct. 11 


F. C. Ebert 


Feet. 
0.09 
09 
.11 
.21 
.12 
.12 
.50 

.32 
.32 
..33 
.27 
,25 
,25 
.25 
.22 
.40 
.92 
.90 
.68 
L45 
.87 
.08 
.51 
.Ol 
.04 
.04 
.52 
.50 
2. Ui 
2.28 
1.14 
.56 
.46 


1.7 

2.2 
2.4 

2.6 
2.4; 
20 

4.4 

4.4 ; 

6.5 : 

3.4^ 
3.5 : 
3.6 
3.2 

a.o; 
11 

84 

85 ; 

56 ■ 
184 

90 

59 

29 

43 

46 

48 

29 

26 
420 
496 
146 

32 

21 


1912. 

May 9 
20 
28 

June 
8 
14 
18 

July 4 
9 
13 
21 

Aug. 10 
14 
17 
23 
27 
31 

Sept. 7 
30 

Oct. 5 

Nov. 15 
17 

Dec. 7 
14 
18 
21 
28 

1913. 
Jan. 4 
9 
13 
16 
17 
24 


H. L. Davis 

do 

do 

do 

do 

do 

do 

do 

do-. 


Feet. 
0.7G 
.41 
.30 
.32 
.32 
.28 

:i 

.22 
.24 
.24 
.26 
.22 
.22 
.19 
.10 
.10 
.13 

[38 
.18 
.18 
.18 
.21 
.21 
.22 
.23 

.23 
.19 

.26 
.78 
.49 
.37 


Sec.-ft. 
62 


11 


H. L Davis 


12 


Dec. 13 


.do . . 


9.4 
3.3 
3.1 
3.4 
L8 
2.8 
1 2 


20 


do 


22 


do 


22 
29 


do 

do 


1912. 


F. C. Ebert 


Jan. 17 


do 


1 8 


18 


do 


do 


1 4 


27 


C. B, Ireland 


do 


1 4 


Feb. G 


H. L. Davis 

F. C. ElxTt- 


do 


1.4 


10 


.do 


1 2 


10 


H. L. Davis.. 


do 

do. 

do 

do 

do 

do 

E. W. Case 

W. J. Isbell 

do 

do 


L5 
.9 
1.2 
1.1 
1.3 
11 
2.0 
1.7 
1.7 
2 6 


IG 

28 


do 

do 


Mar. 2 


.do 


6 
11 
12 
13 
14 


do 

do 

do 

do 

.. .do... 


15 


do 


23 
27 
31 


do 

do 

do 


do 

de 

do 


1.! 

1.8 


31 
Apr. 3 


F. C. Ebtut 

H. L. Davis.... 


W.J. Isbell 

do 


4 
11 


.....do 

do 


3.0 

<? 8 


12 


do 


do 


4.8 
50 


13 


do 


do 

do 


24 


do 


Hay 4 


do 


do ;;;; 


7.0 



172 SURFACE WATER OE PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Discharge measurements of Sa7i Luis Rey River near Mesa Grande, Calif., for 1911-1918— 

Continued. 



Made by— 



W. J. IsbelL. 

....do 

....do 

....do 

F. C. Ebert.. 

....do 

W. J. IsbelL. 

....do 

....do 

....do 

..-.do 

....do 

....do 

do 

..-.do 

....do 

Lee Case 

W.J. Isbell.. 

....do 

H. D. McGlasl 
W.J. IsbeU-. 

....do 

F. C. Ebert . . 
W.J. IsbeU.. 

...do 

...do 

...do 

...do 

...do 

F;C. Ebert.. 
W.J. IsbeU.. 

....do 

--..do 

....do 

....do 

..-.do 

....do 

F. C. Ebert.. 

....do 

W.J. IsbeU.. 

....do 

---.do 

----do 

--.-do 

F. C. Ebert - . 
W.J. IsbeU.. 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

.--do 

...do 

...do 

...do 

...do 



W.J. IsbeU. 

...do 

...do 

...do 

...do 

...do. 

...do 

...do 

...do , 

F.C. Ebert.-, 
W.J. IsbeU.. 

-...do , 

do 

do 

do. 

do 

do 

do 

,....cLo 



Gage 
height. 



Feet. 

0.33 
.38 
.61 
.34 
.29 
.33 

1.32 



.42 
.45 



.22 
.21 
.21 
.31 
.35 
.35 
.55 
.33 
.34 
.34 
.50 
3.52 
4.22 
2.87 
1.17 
.94 
.72 
.71 
.60 



Pis- 
charge. 



Sec.-fi. 
5.1 
11 
36 
6.4 
6.3 
7.5 
199 
27 
61 
373 
303 



20 
27 



4.4 
3.8 
3.7 
3.6 
2.2 
1.7 
1.0 
1.5 
1.3 



.7 
1.0 
3.2 

.7 
1.0 



1.1 
1.1 
1.2 
1.2 
1.0 
1.1 
1.7 
6.8 
3.4 
2.0 
2.0 
2.6 
5.0 
3.4 



3.0 
2.4 
2.3 
6.7 
11 
13 
29 
9.2 
10 
9.7 
26 
1,090 
1,440 
722 
155 
130 
79 
51 



1914. 
Feb. 2 
3 
5 



20 
23 
26 
28 
Apr. 10 
13 
16 
20 
24 
25 
2 



May 



10 
14 

19 
28 

Tune 13 
19 
27 

July 9 
24 
30 

Aug. 21 
29 

Sept. 11 

Oct. 12 
24 

Nov. 16 



Dec. 



1915. 

Jan. 9 
16 
22 
25 
29 
29 

Feb. 2 
8 
10 
11 
16 

Mar. 7 
15 
24 
31 

Apr. 9 
2,8 

May 12 
26 

June 8 
30 

July 10 
13 
22 
27 



W.J. IsbeU. 

..-.do 

J. Ridder. . . 

.-.-do 

W.J. IsbeU - 

do 

do 

do 

do 

d9 

do 

..-.do 

..-.do 

do 

Jas. Ridder. 
W.J. IsbeU. 

...do 

...do 

...do 

...do 

...do. 

...do 

...do 

...do 

...do 

...do 

--.do 

.-.do 

F. C. Ebert- 

do 

W. J. IsbeU. 

do 

F. C. Ebert. 
W. J. IsbeU. 

...do 

--.do 

...do 

...do 

.--do 

..-do 

...do 

...do 

F. C. Ebert. 
W. J. IsbeU - 

...-do 

F. C. Ebert. 
W. J. IsbeU. 

---do 

...do 

...do 

...do 

...do 



W. J. IsbeU- 

-..do 

---do 

-..do 

...do 

...do 

..-do 

-..do 

...do 

...do...... 

-do-. 



F. C. Ebert 
W. J. IsbeU, 

...do 

...do 

...do 

...do 

do. 



-do., 
.do-. 



do 

do, 

F. C. Ebert, 
W. J. IsbeU 
....do 



height. 



Dis- 
charge. 



173 



Discharge measurements of San Luis Rey River near Mesa Grande, Calif., for 1911-1918-' 

Coi- ^ 



SAN LUIS EEY RIVEE BASIN. 

?y River near 
Continued. 



Made by— 



W. J. Isbell 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do.... 

...do 

F. C. Ehert. 
W. J. Isbell 

....do 

F. C. Ebert. 
W. J. Isbell 
....do 



....do.... 








....do.... 








....do... 








....do.... 








....do.... 








....do.... 








....do.... 








....do.... 








....do.... 








....do.... 








....do.... 








....do.... 








....do.... 








.-..do.... 








....do.... 








....do.... 








....do.... 








....do.... 








....do.... 








....do.... 








....do.... 








....do.... 








....do.... 








Ebert and Isbe 






W. J. Isbe 
....do.... 


11 












....do 






....do 






-...do 






....do 






....do 






....do 






....do 






....do 






....do 






....do 






F. C. Ebe 
W. J. Isbe 
E. W. Cas 


^t 






11 






e .. 






....do 






..--do 






...-do 






do 






do 






do 






do 






do 






do 






-----do 






--...do... 






do.-- 






.....do 






■-■-.do 






...-.do... 









Gage 
height. 



Feet. 
0.21 
.19 
.16 
.17 
.14 
.15 
.17 
.16 
.16 
.15 
.16 
.16 
. 15 
.22 
.22 
.22 
.22 
.30 



Dis- 
charge. 



Sec.-ff. 
2.0 
1.4 
1.5 
1.5 
1.7 
1.3 
1.7 
1.2 
1.7 
2.2 
1.9 
1.8 



4.4 
4.0 



11 

7.7 



16 
24 
21 
103 
248 
9,850 
2,630 
364 
561 
3,830 
796 
491 
256 
213 
184 
142 
185 
139 
96 
145 
114 
72 
72 
44 
53 
52 
35 
36 
32 
25 
16 



6.0 
9.0 
4.7 
1.9 
2.2 
2.1 
2.3 
1.8 
2.3 
3.0 
3.1 

906 

250 
6.1 
1.4 
2.9 
2.5 
2.4 
3.9 
18 
19 
7.3 



Date. 



1916. 
Oct. 28 
Nov. 4 



16 
23 
30 

1917. 

Jan. 3 
6 
13 
22 
27 

Feb. 3 
10 
17 
23 
24 

Mar. 6 
18 
24 

Apr. 3 
7 

14 
17 

May 1 
5 

10 
16 
19 



Aug. 4 
11 
18 
24 
25 
31 

Sept. 8 
15 
21 
29 

Oct. 6 



27 
Nov. 3 
7 
17 
24 
Dec. 1 
8 
15 
22 
24 



19188 

Jan. 5 

12 

13 

19 

26 

27 

Feb. 2 

9 

16 

18 

22 

Mar. 2 



Made by- 



E. W. Case.. 
..do....... 

-.do....... 

-.do 

..do------- 

.. do. ...... 

..do....... 

-.do 

..do....... 

..do.--...- 



E. W. Case. - . - 

...do 

...do 

---do 

...do--- 

...do--- 

...do... 

...do 

...do 

...do 

...do... 

...do 

...do 

...do... 

...do... 

...do-.- 

...do... 

Angel and Case.. 
Phillip Angel . 
A. E.Bartl... 

-.-.do... 

----do 

F.C. Ebert-.. 
Ebert and Bartl. 

E. A.Bartl 

-...do 

--..do 

-...do 

-■-.do 

Bartl and MUler 
A.R.Miller.... 

....do 

McClung and Campbell 
A.R.Miller 

--.do.-- 

---do 

---do 

...do--- 

...do... 

--.do 

...do 

---do 

..-do 

---do 

---do 

--.do 

--.do 

.--do 

..-do 

..-do 

---do 

F.C. Ebert 

A.R.Miller 



A.R. MiUer.. 

-.do 

-.do 

--do 

--do 

--do 

.-do 

..do------- 

..do 

-.do 

-.do 

..do 



Gage 
height. 



Feet. 
1.01 
1.07 
1.18 
1.29 
1.31 
1.50 
1.44 
1.42 
1.54 
1.72 



3.00 
1.67 
2.31 
2.00 
1.80 
1.70 
1.65 
3.35 
4.20 
2.66 
1.96 
1.80 
1.74 
1.67 
1.60 
1.60 
2.37 
I.IQ 
1.70 
1.71 
1.55 
1.79 
1.55 
1.57 
1.82 
1.52 
1.44 
1.40 
1.24 
1.24 
1.22 
1.20 
1.43 
1.22 
1.22 
1.18 
1.20 
1.36 
1.20 
2.60 
2.63 
2.46 
2.60 
2.56 
2.86 
2.75 
2.85 
2.83 
2.83 
2.89 
2.89 
2.89 
2.88 



2.90 
2.91 
3.30 
3.00 
3.26 
3.10 
2.93 
2.85 
2.87 
3.54 
3.80 
2.95 



Dis- 
charge. 



174 SUSFACE WATER OF PACIFIC SLOPEj SOUTHEEISr CALIFORNIA. 

Discharge measurements of San Luis Rey Rivernear Mesa Grande, Calif. , for 191 1-1913- 

Contiiiued. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 

Sec.-ft. 

Ill 

250 

278 
2,070 
6,590 

158 
40 

28 
19 
20 
14 
13 
20 
11 

9.6 
12 

6.2 


Date. 


Made by- 


height. 


Dis- 
charge. 


1918. 
Mar. 7 

7 


A. R. Miller.., 

do 


Feet. 
3.38 
3.54 
3.78 
6.15 
9.32 
3. 46 
3.18 
3.02 
3.04 
2.90 
2,90 
2.88 
2. 35 
2.88 
2.82 
2.80 
2.84 
2.68 


1918. 
June 15 

29 
July 6 
13 
20 
27 
Aug. 3 
10 
14 
17 
24 
31 
Sept. 7 
14 
21 
28 


A. R.Miller 

do 


Feet. 
2.82 
2.78 
2.84 
2.83 
2.84 
2.81 
2.83 
2.83 
2.81 
2.83 
2.84 
2.84 
2.90 
2.82 
2.83 
2.84 
2.84 


Sec.-ft. 
4.7 
5 1 


8 


do 


do 


2 Q 


11 
12 
21 


.....do 

.....do 

do 


.do 

..-.-do... 

.. do 


2.3 
2.2 
2 


30 


do 


do 


2 


Apr. 6 
14 


do 


do 


2 1 


.....do.. 

.---.do 

do 

.....do 

F. C Ebert 




2.7 


20 
27 

May 4 


McClung and Milk^-. . . . 

A. R. Miller.. 

...-.do... 

.....do 

do 


1.9 
2.2 

1.7 
3 


11 


A. R. Miller.. 


1.6 


18 

25 

June 1 

8 


do 

do... 

....do 

....do 


.---.do... 

.....do... 

.....do... 


2.3 
2.9 
2,2 



Daily discharge, in second feet, 



of San Luis Hey River near Mesa Grande, Calif., for 1911- 
1918. 



Day. 


Oci. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


.Tuly. 


Aug. 


Sept. 


1911-12. 


























1 


1.8 


1.8 


1.6 


4.3 


4.1 


.5.8 


37 


24 


6.2 


2.0 


1.1 


1.7 


2 


1.8 


1.7 


1.6 


3.4 


4.3 


10 


32 


25 


8.2 


2.0 


1.2 


1.4 


3 


1 8 


1.7 


1.6 


8.6 


4.7 


7.4 


28 


20 


4.8 


2.4 


1.2 


1.4 


4 


1.7 


1.6 


1.7 


4.3 


4.5 


25 


25 


20 


4.4 


2.5 


1.2 


1.8 


5 


1.8 


1.6 


1.8 


3.6 


4.3 


20 


25 


21 


3.8 


2.2 


1.1 


1.6 


6 


1.8 


1.6 


1.8 


4.7 


4.1 


119 


25 


21 


3.3 


1.8 


1.1 


1.7 


7 


1.9 


1.7 


2.3 


4.7 


3.9 


30 


21 


22 


4.0 


2.3 


1.3 


1.2 


8 


1.7 


1.7 


2.0 


4.7 


3.9 


17 


17 


70 


3.1 


1.7 


1.3 


1.4 


9 


1.7 


1.8 


2.0 


4.7 


3.6 


46 


28 


88 


4.3 


1.3 


1.3 


1.7 


10 


1.7 


1.7 


1.8 


4.7 


3.6 


790 


42 


42 


4.8 


1.4 


1.2 


.1.7 


11 


1.7 


1.7 


1.9 


4.7 


4.1 


71 


:360 


26 


5.3 


1.3 


1.3 


1.7 


12 


1.7 


1.6 


1.9 


5.2 


4.3 


113 


392 


24 


5.5 


1.4 


1.2 


1.7 


13 


1.7 


1.7 


1.9 


5.2 


4.1 


264 


157 


22 


4.0 


1.6 


1.1 


1 7 


14 


1 7 


1.8 


1.8 


4./ 


3.9 


84 


148 


18 


3.4 


1.6 


1.1 


1.6 


15 


1.7 


1.7 


1.8 


4. 7 


3.9 


51 


164 


17 


4.6 


1.5 


1.2 


1.6 


16. 


1.7 


1.7 


1.8 


4.7 


3.8 


46 


162 


16 


3.0 


1.7 


1.2 


1.5 


17 


1.7 


1.7 


3.9 


6.8 


3.9 


42 


131 


15 


2.0 


1.9 


1.2 


1.4 


18 


1.7 


1.6 


3.9 


5.8 


3.4 


34 


102 


■i5 


2.2 


2.6 


1.5 


1.3 


19 


1.8 


1.6 


3.2 


5.8 


3.6 


31 


76 


13 


.1.8 


1.8 


1.5 


1.2 


20 


1.8 


1.6 


2.8 


5.2 


3.2 


31 


58 


13 


2.1 


1.3 


1.4 


1.2 


21 


1.7 


1.6 


a. 4 


4.7 


3.2 


34 


50 


13 


1.9 


1.0 


1.8 


1.3 


22 


1.8 


1.7 


2.0 


4.7 


3.4 


37 


43 


13 


1.9 


1.4 


1.6 


1.3 


23 


2.0 


1.7 


2.0 


4.7 


3.2 


2o 


43 


12 


2.4 


1.4 


1.4 


1.4 


24 


2.0 


.1-7 


2.3 


4.7 


3.2 


25 


34 


12 


2.3 


1.2 


1.3 


1.5 


25 


2.0 


1.7 


2.0 


4.7 


3.2 


22 


34 


11 


2.2 


1.3 


1.2 


1.5 


26 


2.0 


1.7 


1.8 


4.7 


2.8 


53 


30 


11 


2.2 


1.0 


1.0 


1.6 


27 


2.-1 


1.7 


1.8 


6.3 


3.0 


42 


40 


15 


2.2 


1.1 


.8 


1.6 


28 


2.3 


1.7 


2.6 


4.3 


3.0 


32 


30 


9.4 


2.4 


1.1 


2.2 


1.6 


29 


1.7 


1.7 


15 


3.9 


3.0 


46 


28 


7.0 


2.9 


1.3 


2.1 


1.5 


30 


1.7 
1.7 


1.6 


4.5 
4.1 


4.1 

4.1 




145 

48 


24 


9.8 

8.2 


1.8 


1.3 
1.3 


1.5 
1.3 


1.5 


3i:::::::: 







SAE^ LUIS KEY RIVER BASIN". 



175 



Daily discharge, in second-feet, of San Luis Rey River near Mesa Grande, Calif., for 1911- 
:?9i<9— Continued. 



Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1,5 


2 


2 


2 


5.5 


33 


20 




r 


0.7 


0.9 




1.5 


2.5 


2 


2 


5.5 


30 


20 


6. 5 


2 


. 7 


.9 




22 


2 


2 


2.5 


5.5 


30 


18 


6 


2 


. 7 


.9 


.8 


7 


2 


2 


3 


5.5 


28 


15 


5.5 


2 


.8 


.9 


.7 


11 


2 


2 


2.5 


7.5 


27 


16 


5 


2 


.8 




.7 


4.5 


2 


2 


3.5 


13 


29 


15 


4.5 


2 


.8 




.7 


3 


2 


2 


3.5 


11 


30 


14 


4.5 


1.5 


.8 




.7 


3 


2 


2 


2.5 


26 


30 


12 


4 


1.5 


.8 




.8 




2 


2 


3 


16 


28 


13 


4 


1.5 


. 7 




.8 


2.h 


2 


2 


4 


9 


26 


12 


4 


1.5 


■'' 




.9 


3 





2 


13 


6 


30 


9 


4.5 


1 


.9 




.9 


3 


'i 


2 


5 


6 


56 


7 


4.5 


1 


.9 


i 




3 


2 


2 


5 


5.5 


44 


7.5 


4.5 


1 


.8 


1 


.9 


3.5 




2.5 


5 


6.5 


30 


7.5 


4 


1 


.7 


.8 


.9 


3 


2 


2 


6.5 


6.5 


23 


8.5 


4 


1 


.7 


.8 


.8 


3 


2 


2 5 


64 


6.5 


22 


8.5 


4 


1 


.8 


.8 


.9 


3 


2 


2 5 


21 


6.5 


22 


7.5 


4 


1.5 


.9 


.7 


.9 


3 


2 


2.5 


13 


6.5 


20 


16 


4 


1.5 


1 




.9 


3 


2 


3 


8.5 


6.6 


20 


14 


3.5 


1.5 


1 


.7 


.9 


3 


2 


3 


7.5 


6.5 


22 


14 


3.5 


1.5 


1 


.8 


.9 


2.5 


2 


3 


7.5 


48 


20 


12 




1 


1 


.8 




2.5 


2 


2.5 


7 


i;o 


26 


11 


3.5 


1 


.9 


.8 




2.5 


2 


2.5 


7 


34 


37 


9.5 


3.5 


1 


.8 


.8 




2.5 


2 


3 


7.5 


52 


61 


9 


3.5 


1 


.8 


.9 




2.5 


2 


2.5 


7.5 


200 


36 


8 


3.5 


1.5 


.9 


.9 




2.5 


2 


2 


7.5 


77 


32 


8 


3.5 


1.5 


i 


.8 




2 5 


2 


2 


7.5 


135 


29 


7 


3.5 


1.5 


1 


.8 




2.5 


2 


2 


7 


61 


27 


7 


3.5 


1 


1 


26 




2.5 


2 


2 


6.5 




24 




3 


1 


1 


14 




2 


2 


1.5 


4.5 




22 


6.5 


3 


.9 


1 


2.5 




? 


1.0 


2 

2.0 


4.5 
2.9 




21 


34 


3 

24 


6 


.9 
1.4 


1.5 
2.7 




.9 


40 


.3 


.9 


1.0 


3.2 


2.9 


27 


57 


37 


24 


6 


1.5 


2.6 


.4 


1.0 


1.0 


3.4 


2.9 


25 


48 


30 


16 


6 


1.5 


2.5 


.6 


1.0 


1.0 


.3.4 


2.9 


24 


43 


23 


16 


6 


1.5 


2.4 


1 7 


1.1 


1.1 


3.2 


2.9 


20 


41 


22 


16 


5 


1.4 


2.3 


1.3 


1.1 


1.1 


3.2 


2,9 


19 


37 


22 


18 


5 


1.2 


2.0 


1.1 


1.1 


1 1 


2 8 


2.9 


18 


30 


21 


16 


5 


1.0 


2.2 


1.3 


1.1 


1.1 


2.8 


2.9 


17 


31 


21 


13 


5 


.9 


2.2 


1.7 


1.1 


1.1 


.3.2 


2.9 


16 


34 


21 


12 


5 


.8 


1.8 


1.5 


1.1 


1.1 


3.2 


3.2 


13 


32 


20 


12 


5 


.8 


1.3 


1.1 


1.1 


1.1 


2.0 


2.8 


13 


28 


18 


12 


5 


.8 


1.3 


.6 


1.1 


2. 2 


2.0 


2.3 


12 


26 


18 


11 


4 


.8 


1.2 


.6 


1.1 


6.2 


2.0 


2.3 


12 


26 


14 


10 


3.3 


.8 


1.1 


.6 


1.1 


2.4 


2.3 


2.5 


12 


27 


14 


10 


3.2 


.9 


1.1 


.6 


1.1 


2.4 


2.5 


3.5 


13 


24 


12 


10 


3.1 


.8 


1.0 


.6 


1.1 


2.4 


1.8 


27 


11 


24 


11 


9 


2.3 


.8 


1.0 


.4 


1.1 


2.4 


2.5 


14 


11 


20 


12 


9 


2.3 


.9 


1.0 


.3 


1.2 


2.4 


2.2 


25 


75 


20 


10 


9 


2.2 


.9 


1.0 


.4 


1.2 


2.4 


2.4 


28 


900 


19 


12 


8 


2.1 


. 9 


1.0 


.4 


1.2 


2.4 


2.6 


16 


1,380 


19 


9 


8 


1.9 


•7 


1.0 


.4 


1.2 


2.4 


3.2 


9.2 


2,460 


19 


12 


10 


2.2 


.9 


1.0 


.6 


1.2 


2.1 


4.8 


8.8 


533 


19 


49 


8 


2.0 


.8 


.3 


.8 


1.2 


2.4 


.5.0 


9.8 


2i2 


19 


36 


10 


1.9 


. 6 


.3 


.9 


1.2 


2.4 


5.0 


11 


163 


18 


23 


10 


1.7 


.6 


4 


1.5 


1.2 


2.4 


5.0 


26 


128 


20 


23 


10 


1. 5 


.6 


.4 


1.3 


1.2 


2.4 


4.3 


875 


97 


21 


22 


10 


1.4 


.6 


1.2 


.8 


1.2 


2.5 


4.0 


1, 000 


87 


22 


23 


8 


1.2 


.6 


1.0 


.6 


1.2 


2.4 


3.4 


174 


73 


119 


26 


6 


1.4 


.7 


1.1 


.8 


1.2 


2.2 


3.4 


88 




46 


32 


6 


1.4 




1.2 


.6 


1.2 


2.1 


3.4 
3.4 


49 
40 




122 
43 


24 


6 
6 


1.4 


15 

2.7 


.3 
.2 


.8 


1.1 







176 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORI^IA. 

Daily discharge, in second-feet, of San Luis Rey River near Mesa Grande, Calif., for 1911- 
i9^5— Continued. 



Apr. 



May. 



July. 



1.9 
1.9 
1.9 
1.9 

1.8 

1.8 
1.8 
1.8 
1.9 
2.0 

2.1 
2.2 
2.3 
2.4 
2.6 
2.6 



2.8 
2.8 
2.8 
2.8 
3.3 

4.4 
4.4 
5.0 
6.5 
10 

6.5 
4.4 
4.4 
4.3 
4.2 

4.2 
4.1 
4.1 
4.0 
4.0 

4.0 
4.0 
4.1 
4.2 
4.3 

4.4 
4.5 

4.5 



4.8 
4.9 
5.5 

24 

24 



7 

6.5 
18 
26 

16 
15 
13 
12 
11 



8.5 
9.5 
11 



4.1 
3.4 
4.1 
6.0 
4.4 



4.4 

5.4 
10 
7.9 

6.7 
5.4 
5.4 
6.0 
5.4 



5.4 
5.4 
5.4 

7.9 
65 
12 
16 
45 

16 
5.4 
156 
1.460 
800 
303 



16 
25 
24 
20 
29 

36 
21 
16 
103 
40 

42 
43 
44 
46 
170 

1,550 
13, 000 
10, 100 

2,740 
896 

536 

423 
352 
354 

775 

806 
28, 100 
6,130 
2,060 
1,610 
1,020 



147 

1, 050 

500 



1,540 
685 
452 
321 
279 

210 
192 
149 
145 
368 

349 
274 
24^ 
271 
412 

197 
142 
140 



190 
180 
160 
145 

260 
385 
185 
300 



402 
492 
364 
303 

274 

231 

202 



179 
172 
145 
142 
131 

120 
100 



350 
290 



175 
145 
390 
245 

215 

155 
155 
140 
125 
110 
100 



54 
50 



43 
42 
41 
39 
38 



SAN LUIS EEY EIVEE BASIN. 



177 



Daily discharge, in second-feet, of San Luis Rey River near 
i9i5— Continued. 



Mesa Grande, Calif., for 1911- 



4.0 
15 
30 
34 
32 

30 
20 
13 
10 
14 

18 
15 
17 
19 
13 

10 
12 
11 
10 
8.5 
11 
10 
12 
11 
12 

11 

9.5 
9.5 
8.5 

8.5 
8.5 

2.5 
2.5 
2.5 
2.5 
2.0 
2.8 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
3.6 
3.5 
3.3 

3.1 
2 9 
2.7 
2.5 
2.4 

2.4 
2.5 
2.5 
2.5 
2.6 
2.6 
2.6 
2.6 
2.6 
2.7 
2.7 



8.5 
8.5 

10 

12 

17 

21 
13 
11 



5.5 
5.5 



4.9 
4.9 
4.8 

4.8 

4.7 

4.7 

4.6 

4.8 

5 

5 

5.5 

5.5 



13 
14 
15 
15 
16 
17 
89 
454 

148 
68 
58 
49 
40 



5.5 

5 

5 

4.5 

4.5 

4.2 

4.5 

5 



8.5 
8.5 
8.5 



220 

77 
50 

41 



10 



Feb. 



41 

40 
36 

37 
37 
37 
37 
31 

30 
251 
242 
180 
160 
115 
506 
874 



195 
136 
110 



132 
96 
73 
66 

153 
36 
17 
17 
18 
17 
14 



58 
340 
284 
133 
210 

1,080 
4,030 
820 
183 
139 
110 
100 
94 
300 



115 

78 
74 



Apr. 



150 
129 



May. 



43 
40 
37 
34 
31 
33 
35 
37 
39 
42 



24 

21 
21 



30 
24 
24 



33 
29 
29 
28 



17 
16 
15 



13 
13 
15 
17 
19 

20 
16 
17 
18 
19 

20 
15 
11 



10 
10 
10 

8.5 

8.5 
8.5 

14 

22 

18 

16 



5 

4.0 

6.5 

3.4 

3.7 

3.4 

3.2 

3.0 

2.7 
2.5 
2.3 
2.0 

1.8 



12 
11 
10 
9 

8 

7.5 

7 

6.5 

6.5 

6 

5.5 

5.5 

5 

4.9 

4.7 
13 

5 

4.0 
29 
19 

6 
5 

6 ■ 
9 
10 
5 

4.0 
3.5 
2.9 
2.9 



July. 



1.6 
2.2 
1.9 
2.2 
2.8 
3.4 
2.2 
1.0 



1.0 
1.6 
1.3 



1.3 

1.0 

1.0 

1.3 

5 

1.6 

1.3 

4.0 

3.7 

2.8 

4.0 



2.7 
2.6 
2.5 
2.4 
2.3 
2.3 
2.3 
2.3 
2.2 

2.2 
2.2 
2.2 
2.2 
2.2 
2.1 
2.1 
2.0 
2.0 
2.0 
2.0 
2.0 
2.0 
2.0 
2.0 
2.0 
2.0 
2.0 
2.0 
2.0 
2.0 



Aug. 



3.4 
3.7 
2.8 
2.2 
2.2 
2.8 
2.3 
2.0 
2.0 
2.3 
1.9 
2.0 
2.0 
2.0 
2.0 
2.1 
2.0 
2.0 
2.0 
1.9 
1.8 
1.7 
1.6 
1.5 
2.4 

2.4 
2.4 
2.3 
2.3 
2.3 
2.3 



2.1 
2.1 
2.1 

2.2 

2.3 
2.4 
2.5 
2.6 
2.7 
2.5 
2.3 
2.1 
1.9 
2.0 
2.1 
2.2 
2.2 
2.1 
2.0 



1.7 
1.7 
1.9 

2.1 
2.3 
2.4 
2.6 
2.8 
3.0 



Note.— Daily discharge determined as follows 1911-12: Oct. 3, 1911, to Mar. 11^ 1912, and Mar. 12 to May 
20, 1912, from fairly well defined rating curves: Discharge estimated Oct. 1 and 2, 1911, and Mar. 9, 1912. 
Shifting-control method used May 21 to Aug.31, 1912. For September, 1912,the discharge was obtained by a 
2-foot Cippoletti weir installed 66 feet above gage, and by interpolation between discharge measm-ements. 

1912-13 and 1913-14: From fairly well defined rating curves, usually covering short periods, and by 
shifting-control method. 

1915-16: No record from Barrett & Lawrence water-stage recorder after Dec. 31, 1915; stafi gage read 
Jan. 1 to Apr. 30, 1916; discharge computed from hydrograph Jan. 16-31; gage not read Jan. 2, 4, 6, 8, 11-13, 
Jime 29-30, July 11, Aug. 31, Sept. 1, 3-5, and 22; discharge estimated. 

1916-17: Staff gage read Nov. 7 to Dec. 12, 1916, and June 2 to Sept. 30, 1917. No gage-height record June 



24-30, 1917; discharge interpolated. 

1917-18: Water-stage recorder not in use Oct. 1-12; staff read, 
during the year 1917-18. 



There were frequent changes in channel 



142131°— 21— wsp 447- 



-12 



178 SURFACE WATER OF PACIFIC SLOPE, SOUTHERTT CALIFORNIA. 

Monthly discharge of Sa7i Luis Bey River near Mesa Grande, Calif., for 1911-1918, 



Discharge in second- 



' Maxi- Mini- 
mum, mum. 



Rim-off 
(total in 
acre- 
feet). 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



Run-off 
(total in 
acre- 
feet). 



1911-12. 

October 

November. . . 
December . . . 

January 

February 

March 

April 

May 

June 

July 

August 

September... 



The yeai- . 



1913-14. 

October 

November. . . 
Deceml^er . . . 

January 

February 

March 

April 

May 

June 

July 

August 

SeptemlDer. . . 



2 4 

1.8 
15 
G.8 

790' 

392 
88 
8.2 
2.6 
2.2 
1.8 



The year . . . 

1912-13. 

October 

November 

December 

January 

Fe))rua.ry 

March 

April 

May 

June 

July 

August 

September 



790 



1.2 
6.2 
5.0 

1,000 

2,460 
122 



The year... 



1914-15. 

October 

November. . . 
December . . . 

January 

February 

March 

April 



2.5 

3 

64 
200 
61 
20 

6.5 

2.5 



2,460 



1.0 

1.6 

18 

1,460 

1,540 

492 

334 



1.6 
3.4 
2.8 
5.8 
17 
7.0 
1.8 
1.0 



1.68 
2.73 



75.4 
79.5 
21.1 
3.43 
1.62 
1.32 
1.51 



111 
100 
168 
290 
212 
4, 840 
4, 730 
1,300 
204 
99.6 
81.2 
89.8 



16.6 



12, 000 



1.5 

2 

5.5 
20 

6.5 

3 
.9 
.7 
.7 
.7 



3.73 
2.02 
2.23 
8.10 
33.7 
29.5 
11.3 
4.13 
1.40 
.85 
2.18 
.90 



229 
120 
137 
498 
1, 870 
1,810 
872 
254 
83 
52 
134 
54 



8.18 I 5,910 



.9 
1.0 
1.8 
2.3 

11 

18 



1.12 
2.02 
3.15 
78.8 
230 
35.9 
21.7 
11.4 
3.28 
1.42 
1.29 
.82 



31.2 



1.2 
1.2 
3.4 

92 

66 

37 



1.13 
1.31 
5.55 
96.6 
381 
157 
78.5 



120 

194 

4,840 

12, 800 

2,210 

1,290 

701 

195 

87 

79 

49 



78 
341 
5,940 
21,200 
9,650 
4,670 



1914-15. 

May 

June 

July 

August 

Septeml)er 

The year . 

1915-16. 

October 

November 

Decc-m})er 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year . 

1916-17. 

October 

November. . . . 

December 

January 

February 

March 

April 

May 

Jun ^ 

July 

August 

Septemlier 

The year . 

1917-18. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year . 



925 
60 



253 
37.6 
7.45 
1.63 
1.50 



1,540 



8.3.4 



2.6 
10 
28 
28, 100 
870 
490 
110 
48 
22 

101 
3.9 



16 
145 

85 
44 
23 
6 



2.01 
4.41 
12.3 
2, 290 
370 
180 
68.7 
33.3 
11.9 
3.06 
5.77 
2.60 



34 

21 
454 
323 
874 
143 
780 

58 

24 
5 
3.7 

35 



7 
35 
30 
42 
30 
21 



14.4 
11.9 

41.7 
78.8 
144 
65.4 
89.3 
34.3 
9.28 
1.82 
2.21 
4.03 



55 

153 

4,030 

51 

22 

29 
2.8 
3.0 
2.9 



2.0 
2.7 
4.2 
4.0 
5 

10 

14 
8.5 
2.9 
2.0 



2.65 
5.42 
6.86 
12.5 
27.5 
291 
26.4 
14.3 
7.78 
2.18 
2.22 
2.34 



SAN LUIS REY RIVER AT DIVERSION FLUME, CALIF. 

Measurements of the flow of San Luis Rey River at a diversion 
flume in sec. 23, T. 10 S., R. 1 E., were made in 1894 and 1895, and 
the daily discharge of the river, supposedly at this same point, has 
been computed for 1896 to 1899, although it is not definitely known 
that the records for 1899 refer to the point of measurement in 1894-95. 



SAliT LCriS KEY KIVEE BASIK. 179 

Discharge measuremenU of San Luis Rey River at diversion Jlwnie, Calif., for 1894-95. 



Date. 


Made by— 


Dis- 
charge. 


Date. 


Made by- 


Dis- 
CJiarge. 


1894. 
Maj- - 
Oct. - 
Dec 8 


E. F. Tabor 


Sec.-/t. 

a 6, 720 

4 

10 

240 

a 5,000 


1895. 
Mar. 8 
Apr. 11 

17 
May 10 

19 


E. F. Tabor 


Sec.-ft. 
152 


do 

do 


do.. 

do . .. .„., 


100 
72 


20 




do 


39 




E. F. Tabor 


do. ,. 


19 


1895. 
Jan. 15 

















Daily discharge, in second-feet, of San Luis Rey River at diversion fvume, Calif., for 

1896-1899. 





Day. 




1 Oct. 


Nov. 


Dec. 


Jaa. 


Feb. 


Mar. 


Apr. 


1 


1896-97 




1 


3 
3 
2 
2 
2 

3 

I 

3 

4 

5 
5 
4 
3 
2 

3 
2 
2 
2 
3 

3 
3 
3 

17 


5 
5 
5 
5 
5 

5 
5 
5 
4 
4 

5 
5 
5 
5 
40 

13 
9 

8 
7 
6 

5 

5 
5 
5 
4 

4 
4 
13 

38 
10 


7 
7 
6 
6 
s5 

6 
6 
5 
5 
10 

18 
37 
21 








2 i 








3 








79 


4 










5 . 










6 . 










7 










8 










9 










10 




24 

21 
21 
21 
21 
19 

19 
21 

29 




31 


11 




26 


12 




31 


13... 




35 


14 




33 


15 




2<S 


16 




27 


17 . ... . ... 




24 


18 




24 


19 




22 


20 





1 




22 


21 




24 
21 
19 
19 
19 

19 
21 
19 
24 
30 
33 








22 










23 










24 




300 






25. 








26 










27 


7 
10 
8 
4 


7 
7 

5 








28 








29 








30 








31 




















Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Day. 


Dec. 


Jan. 


Fel). 


Mar. 


1897-98. 
1 




5 
5 
9 

6' 

8 
8 
50 

19* 

19 


16 
16 
16 
15 
15 

13 
15 

22" 

19 

17 
15 
12 
10 
10 


8 
8 
8 
8 
8 

8 
8 
8 
8 
27 

33 
21 
17 

18 
24 


1( 

r 
li 

ic 

2f 
21 

22 
2: 
2^ 

2L 

2( 
27 
2S 
2£ 
.30 
31 


1897- 


18. 


7 
6 
10 


21 
26 
38 
19 
18 

14 

13 
40 
35 
26 

20 
14 
19 
22 
19 
16 


10 
13 
22 
17 
13 
12 
10 
10 
9 
9 

9 
9 
9 


17 


2 


4 
4 
4 
4 

3 

3 

3 

2.5 

2.5 

2.5 
2.6 
2.5 
2.5 

2.5 






22 


3 






21 


4 






26 


5 .,,. = 







10 
10 


28 


R 


. 




20 


5 






17 


s::::::: 








18 


I . 








9 








9 
9 
9 
8 
8 
8 
6 
















11 









12 








13 








14 . . 


. . 








15 














1 











Note.— The above record is very incomplete, as the discharge was measiired over a weir in the flume, 
and at times of high water no record was kept. The river was probably dry during the summer months. 



180 SURFACE WATER OF PACIFIC SLOPE, SOUTHERIST CALIFORNIA. 

Daily discharge, in second-feet, of San Luis Rey River at diversion flume, Calif for 
1894-95— Continued. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1899. 
1 


0.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

24.0 
.0 
.0 

10.0 
.0 

6.0 
6.0 
6.0 
5.6 
5.3 
4.9 
4.7 
3.0 
3.6 
3.6 

3.6 
3.4 
3.0 
3.0 
3.0 
3.0 


3.0 
20.0 
33.0 
13.3 
14.9 
10.1 
10.2 
10.2 
9.3 
9.0 

8.6 

7.8 
7.8 
7.8 
7.8 

7.3 
6.9 
5.9 
6.6 
5.3 

4.9 
4.7 
4.7 
16.8 
10.1 
7.5 
6.6 
5.9 


5.6 
5.3 
5.0 
4.7 
4.1 
3.6 
3.6 
3.6 
3.6 
3.6 

3.6 
3.6 
3.6 
3.6 
3.6 

3.6 
24.4 
24.4 
11.7 
11.7 
25.0 
18.5 
13.3 
11.7 
19.9 

19.5 
11.7 
10.9 
17.8 
15.1 
11.7 


10.9 
9.3 
9.0 
8.6 
8.1 

7.8 
7.3 
6.5 
6.2 
5.9 

5.3 

4.9 
4.6 
4.4 
4.1 
3.9 
3.6 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

4.7 
4.1 
.0 
.0 
.0 


(«) 


10.0 
10.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 


(a) 


(a) 


(a) 


(o) 


0.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
3.0 
.0 
.0 

.0 
.0 
.0 
.0 
.9 


0.0 
.0 
.0 
.0 
.0 

.0 
.0 
g 


2 


3 










4 










5 










6 










7 










8 










9 










.0 
.0 




10 










11 










12 













13 










Q 


14 













15 













16 










2 


17 













18 










4 8 


19 










8 6 


20 













21 













22 










.0 


23 










.0 


24 













25 










2.6 


26 













27 










.0 


28 .... 










.0 


29 










.0 


30 










7.2 


31 










5.4 























a River dry for month. 
SAN LinS REY RIVER NEAR NELLIE, CALIF. 

Location. — Near west line of sec. 33, T. 10 S., H. 1 E. (unsurveyed), in Potrero Indian 
Reservation, 500 feet above intake of Escondido Mutual Water Co.'s canal, 8 miles 
below gaging station at Warner dam site near Mesa Grande, and about 4^ miles 
southwest of Nellie, San Diego County. 

Drainage area. — 240 square miles (measured on topographic maps). 

Elevation. — About 1,800 feet above sea level. 

Records available, — October 1, 1915, to June 30, 1916 (not complete). 

Gage. — Friez water-stage recorder on left bank, with reinforced concrete well, 500 
feet above intake of Escondido Mutual Water Co.'s canal. This equipment was 
destroyed by the floods of January, 1916. March 10, 1916, a temporary staff was 
installed, at an independent datum, and June 16 the datum was lowered 1.88 feet. 

Discharge measurements.^ — Made from cable 400 feet above gage or by wading. 
This equipment was destroyed by the floods of January, 1916. 

Channel and control. ^ — Bed sand and boulders overlying solid rock; shifting. A 
concrete control, extending to bedrock, was built across channel 30 feet below 
gage; it was destroyed by the floods of January, 1916. 

Diversions. — None. 

Regulation. — None. 

Accuracy. — Stage-discharge relation not permanent on account of accumulation of 
sand at control . Mean daily gage height determined by inspecting recorder graph, 
October 15 to January 8. Gage read to hundredths once daily, April 1 to June 
30. Daily discharge ascertained as follows: October 1-14, estimated from dis- 
charge measurements, as water-stage recorder was not installed until October 15; 
October 15 to Novemi)er 3, by shifting-control method; November 4 to December 
3, from an average rating curve fairly well defined; December 4 to Januaiy 8, by 
shifting-control method; January 9-14, by comparison with record obtained at 
Mesa Grande, as gage-height record was lost; January 16-31, from detailed study 
of mean precipitation, computed for drainage area, compared with other records 



SAN LUIS EEY RIVER BASIIS'. 



181 



of flow of San Luis Rey River; April 1 to June 30 from well-defined rating curves; 
discharge interpolated for days when gage was not read. No gage-height record 
during February and March . Records good for low and medium stages ; high- water 
record fair. 



Discharge measurements of San Luis Rey 


Eiver near Nellie, 


Calif., for 1912-1916. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made bj-- 


Gage 
height. 


Dis- 
charge. 


1912. 
Apr. 20 
May 2 
14 


H Jj Davis 


Feet. 


Sec.-ft. 
88 
22 
14 
4.6 
6.4 
4.0 
1.0 
.1 

18 

57 

35 

23 

19 

14 

11 
9.1 
5.9 
5.4 
5.1 
5.6 
2.9 
3.2 
6.1 
4.1 


1915. 

Sept. 27 

Oct. 1 
8 
15 
22 
29 

Nov. 12 
19 

Dec. 3 
17 

1916. 
Jan. 8 
15 
22 

Mar. 10 

18 

25 

31 

Apr. 14 

28 

May 12 

' 26 

July 7 

Aug. 14 

Sept. 13 

Nov. 22 


Ebert and Dixon 


Feet. 
0.28 


Scc.-ft. 
4.5 


F C Ebert 




W.J. Isbell 


2.6 


E W Case 




do 

do 

do 

do 

do 

do 

do 

do 






■"■"*86' 
.86 
1.07 
1.14 
1.13 
1.16 
1.23 

1.30 
2.30 
3.02 
1.90 
1.58 
1.93 
1.54 
1.32 
.90 
.54 
.47 
1.60 
1.40 
1.35 
1.67 


3.5 


22 


F C Ebert 




5.0 


June 16 


H L Davis 




3.8 


25 
July 11 
Aug. 4 

1914. 
May 10 
' 1915. 


Case and Taylor 

F C Ebert 


1.15 
1.08 
.98 


2.8 
10 


E. W. Case 


7.4 


F C Ebert. 


9.2 
19 


W J Isbell 


1.28 
1.20 
1.18 
.95 
.77 
.52 
.52 
.37 
.35 
.30 
.37 
.26 
.23 
.29 
.22 


W. J. Isbe 
do 


I 


22 


25 


do 






194 


July 2 
9 
12 


do 

do 

F C Ebert 


do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 




571 
222 
148 


24 


W J Isbell 


205 


29 
Aug. 7 
13 
20 
27 
Sept. 3 
10 
17 
24 


.....do 

do 


142 
110 
63 

46 

42 

13 
4,5 
4.7 

13 



Daily discharge, in second feet, of San Luis Rey near Nellie, Calif., for the year ending 

Sept. 30, 1916. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Apr. 


May. 


Jime. 


1 


2.5 
2.5 
3.0 
3.0 
3.0 

3.0 
3.5 
3.5 
3.5 

4.0 

4.0 
4.5 
4.5 
5.0 
5.0 

5.0 
5.0 
4.5 
4.5 
4.0 

4.0 
4.0 
3.5 
3.5 
3.5 

3.0 
3.0 
3.0 
3.0 
3.0 
3.0 


4.0 
4.0 
4.0 
6.0 
7.0 

12 
16 
11 
10 
19 

14 

8.5 
7.0 
7.0 
7.0 

7.0 
7.0 
7.0 
8.0 
8.5 

11 
11 
12 
13 
12 

12 
11 
10 

8.0 
8.0 


8.0 
8.5 
9.0 

52 

38 

16 
12 
12 
11 
11 

12 
13 
14 
31 

48 

22 
19 
18 
15 
13 

13 
14 
15 
16 
13 

13 
12 
13 
17 
31 
33 


25 
43 

41 
26 
38 

48 
29 
22 
140 
55 

58 
59 
60 
63 
194 

........ 


132 
136 
132 
136 
133 

125 
119 
112 
112 
112 

120 
135 
115 
108 
106 

100 
96 
94 
92 
91 

83 
82 

78 
74 
72 

66 
69 
69 
62 
62 


58 
59 
58 
56 
54 

53 

52 
51 

48 
47 

46 
45 
44 
46 
44 

40 
42 
40 
45 

58 

49 
44 
39 
42 
41 

41 
37 
38 
35 
33 
34 


34 


2 


32 


3 


31 


4 


31 


5 


30 


6 


30 


7 


28 


8, 


28 


9 


27 


10 


26 


11 


26 


12 


24 


13 


23 


14 , . . 


22 


15 


21 


16 


20 


17 


19 


18 


18 


19 


17 


20 


17 


21 


17 


22 


18 


23 


18 


24 


17 


25 


16 


26 


15 


27 


15 


28 


15 


29 


14 


30 


14 


31. 













Note.— No gage-height record October 2-7 and 9-14, January 9 to March 31, April 10-12, 16, 18-19, 23, 
May 3-5, June 4-5, 8, 10, 12, 14-15, 17-19, 21-22, 24-26, 28-29; discharge interpolated. 



182 SUKFACE WATER OF PACIFIC SLOPE, SOUTHERN- CALirORIsriA. 



Monthly discharge of San Luis Rey River near Nellie, Calif., for the year ending Sept. 

SO, 1916. 
[Drainage area, 240 square miles]. 



October 

November . 
December.. 
Jamiary — 

April 

May 

June 



Discharge in second-feet. 



5.0 
19 
52 



136 
59 
34 



2.5 
4.0 

8.0 
22 
62 

as 

14 



9.40 
18.5 
2,680 
101 

45.8 
22.1 



Per 
square 
mile. 



.077 
11.2 
.421 



Depth in 

inches on 

drainage 

area. 



Total in 
acre-feet. 



0.02 
.04 



12.91 

.47 



1,140 
165,000 
«,010 
2,820 
1,310 



SAN LUIS HEY RIVER NEAR PALA, CALIF. 

LocATiON—In NW. i sec. 31, T. 9 S., R. 1 W., above ford on road to Sickler's mill, 
about 4 miles southeast of Pala, San Diego County. 

Drainage area. — 322 square miles (measured on topographic maps). 

Elevation. — About 575 feet above sea level. 

Records available. — October 9, 1903, to June 30, 1911, and November 14, 1912, to 
January 31, 1916. 

Gage. — Friez water-stage recorder on left bank 600 feet above ford and staff gage in 
three sections at the same site. Previous to September 19, 1912, records were 
obtained from staff gage about 50 feet above ford. November 13, 1908, original 
■gage datum was lowered 4.66 feet; new gage above cable is at an independent 
datum. 

Discharge measurements. — Made from cable 550 feet below water-stage recorder 
or by wading. 

Channel and control — Bed composed of sand, gravel, and boulders; shifting. 
An artificial control, consisting of short concrete cut-off walls between boulders, 
was built across channel just below gage in September, 1913. It w^as rebuilt 
September 28, 1914. Zero flow for new control, about stage 5.7 feet. (See 
PL V, A, p. 16.) 

Extremes of discharge. — 1903-1916: Maximum stage recorded, 18.1 feet January 27, 
1916 (discharge, 75,000 second-feet); minimum stage recorded, 5.28 feet August 
6 and 7, 1907 (discharge, 0.6 second-foot). 

Diversions. — The Escondido Mutual Water Co. diverts water from San Luis Rey 
River about 10 miles above station. This water, which is stored at Escondido 
reservoir (capacity, 3,120 acre-feet), about 6 miles northeast of Escondido, is 
used for irrigation and municipal supply at Escondido and vicinity. There is a 
small diversion for irrigation on Rincoii Indian Reservation. Vvater is diverted 
from Pauma Creek for irrigation on Pauma Indian Reser\^ation and Pauma 
Rancho. About 1 second-foot of water is diverted above station for irrigation of 
orchard at Sickler's mill on left bank below station. 

Regulation. — None. 

Accuracy, — Stage-discharge relation not permanent; conditions much improved after 
construction of concrete control. Many rating curves, fairly well defined 
except for flood stage, have been used. Since installation of concrete control 
rating curves are better defined and are applicable for longer periods. Staff 
usually read to half-tenths once daily. Mean daily gage height determined by 
inspecting recorder graph. Daily discharge ascertained by applying mean daily 
gage height to rating tables or by shifting-control method. Record good since 
construction of control; earlier records fair. 



SA'N LUIS KEY RIVER BASIIST. 



183 



Discharge measurements of San Luis Rey River near Pala, Calif., for 1903-1916. 
[By W. V. Hardy, F. C. Ebert, and others.] 



Gage 
height. 



Dis- 
charge. 



Gage Dis- 

height. charge. 



Aua:. 16.. 
Oct. 9... 



Feb. 8... 

17. 

18 . 
Mar. 17., 

22. 

22. 
Apr. 11 . 
May 15.. 

17. 

20. 
July 6... 
Aug. 8. . . 

19., 

26., 
Sept. 2.. 

9... 

16., 

21.. 

Oct. 28-'^ 
Dec. 27 . . 



Feb. 9.. 

26., 

Mar. 4 . . 



G... 

7... 

16., 

17.. 

17.. 

17-. 

18.. 

19.. 

20.. 

21.. 
Apr. 12.. 

26.. 
May 14.. 
Juno 27.. 
Aug. 5... 
Oct. 10., 
Nov. 13. 
Dec. 5... 

28.. 



15.. 

19.. 

20.. 
Mar. 13.. 
Mar.' 14 . . 

27.. 
Apr. 3 . . . 

5... 

16.. 
Apr. 18.. 
IViay 6... 

8... 

23., 
June 5 . . . 

18.. 
July 24.. 
Dec. 11 . . 

23.. 



2.25 
2.72 
4.75 
7.50 
2.64 
2.64 
1.80 
1.20 
1.10 
1.40 
.65 



See.-ft. 
1.1 
1.1 



108 



735 
),180 
305 
299 
104 
49 
40 
57 
3.5 
3.0 
3.2 
3.3 
2.7 
2.7 
2.5 
2.1 
2.8 
3.6 
12.9 
9.4 



9.0 

14.7 

10.4 

17.9 

38 

43 

48 

38 

32 
447 
1,540 
984 
811 
532 
367 
238 
182 
307 
119 
166 

28 
5.9 
3.0 
3.5 

13 
322 



43 


78 


40 


76 


62 


110 


57 


105 


32 


183 


18 


141 


95 


593 


82 


330 


70 


282 


70 


135 


65 


123 


39 


105 



46 
32 



3.0 

15 
9.9 



1908. 
Jan. 7 

20 

31 

Feb. 1 

3 

4 

4 

4 

((............ 

19 

29 

Mar. 8 

16 

27 

Apr. 11 

23 

:'.0 

May lii 

3) 

Juno 3 

Jnlv VlWV. ..'..'..'. 
Nov. ,^) 

28 

Deo. 15 

28 

1909. 
Jan. 30 

31 

Feb, 11 

11 

11 

12 

12 

12 

12 

13 

13 

15 

Mar. 2 

16 

Apr. 1 

2 

13 

May 1 

Tune 4 

1910. 

Jan. 8.... 

Feb. 3 

20 

21 

21 

Mar. 8 

9 

29 

Aot. 11 

12 

12 

13 

13 

May 3 

4 

11 

31 

June 28 

Sept. 20 

Nov. 23 

1911. 
Feb.o 

6 

Mar. 6 

Apr. 12 

May 11 .......... 

June 27 



Feet. 
5. (-.2 

5. (H 

6. 10 
6.30 
8.70 

7. ?0 
7.60 
7. 40 
a 90 
G.75 
6.68 
6.50 
6.55 
6.42 
6.07 
(). 40 
5.75 
6. 30 
5. 64 
5.81 
5.5-3 
5. d3 
5.56 
5.39 
5. 55 
5. 50 
5.00 
5.56 



7.50 

7.20 
7.20 
0. 30 
5.77 
5.72 



a New gage installed Nov. 13, 1906, the datum of which is 4.66 feet below 'that of the former gage. 



1S4 SUEFACE WATEE OF PACIFIC SLOPE, SOUTHEEN CALIFOENIA. 

Discharge measurements of San Luis Rey River near Pala, Calif., for 1903-1916— Gontd. 



Date. 


Made by- 


height. 


Dis- 
charge. 


Date. 


Made by— 


height. 


Dis- 
charge. 


1911. 




Feet. 


Sec.-ft. 


1914. 




Feet. 


Sec.-ft, 


Oct. 14 


F. C. Ebert 


5.70 


5.8 


Mar 28 


F C Ebert 


6.25 
6.02 


11 
51 










Apr! 25 


J-' , V^' . J_J UV/1 t 

do 




1912. 








May 9 


do 




5.70 


18 


Jan. 21 


F.C. Ebert 


5.78 


8.8 


14 


W. J. Isbell 




5.68 


16 


Feb. 12 


do...... 




5.75 


7.0 


28 


do 




5.60 


7.6 


13 


do 




5.77 


7.5 


June 19 


do 




5.48 


4.0 


Mar 7 


F. C. Ebert . 




6.52 


66 


July 10 


do 




5.48 


3.6 


29 


H. L. Davis. 




6.50 


48 


24 


do 




5.38 


1.8 


Apr. 2 


F.C. Ebert. 




6.58 


64 


Aug. 19 


F.C. Ebert. 




5.34 


1.1 


4 


H. L. Davis. 




7.13 


132 


Sept. 5 


W. J. Isbell 




5.46 


2.5 


May 2 


F.C. Ebert. 




6.33 


38 


9 


F. C. Ebert 




5.43 


3.1 


22 


do 




6.08 


18 


28 


do 




5.87 


1.4 


June 15 


H. L. Davis. 




5.83 


7.4 


Oct. 14 


W. J. Isbell 




5.94 


3.4 


25 


E. W. Case.. 




5.72 


5.8 


23 


do 




5.97 


4.0 


July 12 


F.C. Ebert. 




5.72 


3.3 


Nov. 6 


do 




5.96 


3.8 


Aug. 4 


E. W. Case.- 




5.71 


3.4 


Dec. 22 


F. C. Ebert 




6.04 


7.3 


17 


F.C. Ebert. 




5.73 


2.8 










Sept. 10 


do 




5.67 


3.4 


1915. 








11 


do 




5.67 


3.1 


Jan. 11 


Lee and Sleppy 


6.00 


6.4 


12 


do 

do 




5.68 
5.68 


3.4 
3.6 


23 

Feb. 2 


F. C. Ebert 
do 




6.30 
7.85 


38 


14 




644 


15 


do 




5.66 


3.2 


13 


do 


7.82 


648 


16 


do 




5.66 


3.1 


27 


do 


7.08 


276 


17 


do 




5.67 


3.1 


Mar. 11 


do 


7.13 


309 


18 


do 




5.68 


3.4 


Mar. 26 


do 


6.70 


116 


20 


do 




5.60 


3.4 


Apr. 7 


do 


6.58 


95 


Oct. 30 


do 

do 




5.65 
5.69 


4.9 
5.3 


27 

May 6 


W. J. Isbell 
W. D. McFe 




6.58 
7.92 


174 


Nov. 14 


idden 


804 


Dec. 18 


do 




5.73 


7.7 


16 
21 


F. C. Ebert 
do 




7.07 
7.00 


285 








240 


1913. 








July 9 


W.J. Isbell 


6.09 


13 


Jan. 18 


F C Ebert 


6.05 
6.00 
5.77- 


28 
24 
9.4 


13 

24 

Aug. 2 


F. C. Ebert 
W. J. Isbell 
F. C. Ebert 




6.01 
5.97 
5.97 


12 


19 


do 

do 




6.2 


Feb. 20 




7.2 


Mar. 15 


E. W.Case 


6.01 


28 


Sept. 17 


W.J.Isbell 


5.96 


6.5 


Apr. 18 
May 9 


H. D. McGla<;bRTi 


5.86 
5.62 
5.60 


15 
5.8 
5.2 


26 

Dec. 2 

13 


F.C. Ebert 
do 




5.97 
5.97 
6.03 


7.1 


F.C. Ebert. 


... 




8.4 


June 13 


do 




do 


9.8 


July 25 


R.W.Day 


5.44 


1.9 










Aug. 31 


F.C. Ebert.. 


5.59 
5.62 


2.2 
3.3 


1916. 
Mar. 10 
July 13 








Oct. 6 


do 




F.C. Ebert 
do 




282 








"*6."46' 


23 


1914. 








19 


Lee and McClung 




19 


Jan. 24 


F. C. Ebert 


5.81 


11 


Aug. 1 

15 

Nov. 23 


Isbell and McClung 




16 


30 


.(io 


6.50 
6.53 
5.97 


121 
147 
41 


.do 




12 


Mar. 1 


'.'."..do 


'W.J.Isbell 




"■■'.*95" 


35 


9 


do 









Note.— Beginning Sept. 20, 1912, measurements are referred to new gage above cable. 



SAK LUIS KEY RIVEK BASH^J". 185 

Daily discharge, in second-feet, of San Luis Rey River near Pala, Calif., for 1906-1916. 



Oct. 



Dec. 



Jan. 



Mar. 



Apr. 



May. 



June. 



July. 



Aug. 



37 

175 
200 
227 
175 
200 



200 
163 
151 
151 
175 

450 
313 
200 
255 
1,200 

343 
227 
151 
450 

404 



2,800 
2,500 
1,600 



570 
178 
189 
178 

178 
178 
178 
178 
1,000 
820 



410 
178 
178 
170 
162 

114 
106 
102 
91 

85 



82 
79 
79 

910 
178 
106 
91 



106 
178 
1^4 
114 
110 



3,250 
430 
180 

260 
1,120 
460 
310 
240 

180 

220 

210 

13,000 

4,200 



1,120 
990 
820 
470 
810 



85 

85 

106 

2,100 

490 
490 
270 
230 
215 

200 
200 
162 
148 
124 

119 
110 
106 
102 
124 

910 
148 
148 
124 
1,180 

910 
450 

178 
178 
170 
162 



162 
410 
370 
281 

281 

267 
243 
216 
201 
182 

170 
158 
147 
147 
142 

136 
131 
125 



166 
155 
140 
140 
175 

170 
170 
155 
160 
165 

160 
235 
210 
175 
160 

150 
135 
125 
125 
115 

120 
105 
105 
100 
100 

160 
220 
260 
220 
170 
160 



49 
40 
40 

33 
33 
33 
33 
33 
.40 



6.0 
6 
6.0 

6.4 
6.0 
60 
6.0 
5.4 

4.6 
4.0 
3.0 
2.4 
2.4 

2.4 
1.4 
1.6 



2.0 
2.0 
2.0 

2.2 
2.0 
2.4 
2.4 
2.4 
2.0 



186 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERIST CALIFORNIA. 

Daily discharge, in second-feet, of San Luis Rey River near Pala, Calif., for 1906-1916 — 

Continued. 



Oct. 


Nov. 


Dec. 


2.0 


33 


6.0 


2.0 


40 


6.0 


3.0 


33 


6.0 


6.0 


33 


6.0 


4.5 


33 


6.0 


6.0 


27 


6.0 


4.5 


33 


17 


6.0 


33 


22 


6.0 


33 


22 


4.5 


27 


17 


6.0 


27 


22 


6.0 


27 


17 


6.0 


27 


17 


6.0 


27 


17 


8.0 


27 


17 


17 


27 


17 


33 


27 


17 


27 


47 


13 


27 


40 


13 


27 


33 


10 


2? 


33 


10 


40 


27 


10 


9S 


27 


10 


109 


27 


10 


76 


22 


10 


54 


17 


10 


44 


17 


10 


54 


13 


17 


65 


10 


17 


54 


8.0 


17 


44 




17 


2 


5 


5 


2 


5 


5 


2 


5 


8 


2 


5 


18 


2 





12 


2 


6 


12 


2 


6 


10 


2 


6 


9 


2 


6 


9 


2 


6 


9 


2 


6 


9 


2 


6 


9 


2 


6 


9 


2 


7 


9 


2 


7 


9 


3 


6 


10 


5 


7 


12 


6 


7 


10 


5 


7 


7 


5 


7 


6 


5 


7 


6 


5 


7 


6 


5 


7 


6 


4 


6 


7 


5 


6 


7 


5 


6 


7 


5 


G 


8 


5 


5 


8 


5 


5 


8 






8 


5 




8 



Apr, 


May. 


JmiG. 


28 


10 


10 


24 


12 


12 


24 


18 


12 


24 


18 


10 


21 


18 


10 


21 


16 


10 


21 


16 


10 


21 


16 


8 


18 


14 


10 


18 


14 


8 


16 


14 


8 


14 


16 


8 


14 


16 


8 


12 


16 


8 


12 


16 


8 


12 


1,, 


10 


12 


18 


s 


12 


18 


8 


10 


14 


8 


10 


12 


8 


24 


12 


6 


63 


10 


6 


71 


10 


6 


49 


10 


6 


28 


10 


5 


12 


10 


5 


12 


10 


4 


12 


10 


4 


12 


10 


4 


12 


10 
10 


4 


182 


44 


7 


167 


44 


7 


143 


42 


7 


135 


41 


8 


128 


41 


7 


122 


40 


7 


122 


38 


7 


115 


37 


7 


115 


34 


7 


110 


33 


6 


100 


31 


6 


94 


30 


6 


87 


29 


6 


85 


28 


6 


85 


30 


6 


80 


30 


7 


80 


30 


7 


80 


28 


7 


75 


25 


6 


70 


22 


6 


70 


22 


5 


70 


24 


6 


65 


21 


6 


60 


20 


6 


55 


19 


6 


50 


17 


5 


50 


15 


5 


46 


13 


5 


45 


11 


5 


45 


8 
8 


5 



10 
10 . 



180 
104 : 
310 
480 : 



!3,240 
450 
205 
230 

255 
450 
310 
230 
155 
105 



507 
434 
183 

1.56 
120 
89 
277 



345 

277 
244 
212 
197 



109 
109 
109 
109 

109 
109 
109 



135 
315 
200 



20 I 
15 ! 
90 ' 



95 



430 
400 
340 
270 
240 

760 
475 
325 
285 
235 

175 
150 
140 



56 
131 



120 90 

230 i 83 

455 1 73 

240 i 70 

195 ; 67 



390 
790 
930 
400 70 

438 



225 
225 
165 
120 

1-50 
425 
425 
315 
245 
210 



a Maximum discliarge Jan. 22, 1 



>, 4,600 second-feet. 



SAN LUIS KEY EIVER BASIK. 



187 



Daily di&chm'ge,in seco7id-feet, of San Luis Rey River near PaJa, Calif., for 1906-1916 — 

Continued. 




1.88 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of San Luis Rey River near Pala, Calif., for 1906-1916— 

Continued. 



Bay. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


1910-11. 
1 


5 
5 
5 
5 
5 

5 
5 
5 
5 
158 

274 
375 
150 
30 
45 


29 
49 
72 
1,130 
308 

200 
140 
100 
75 
65 

60 
70 
80 
210 
200 


146 
138 
200 

778 
262 

161 
140 
140 
160 
350 

805 
400 
161 
150 
140 


80 
300 
150 
100 

90 

90 
170 
280 
160 
100 

65 
43 
43 
38 
35 


18 
15 
14 
16 
14 

14 
14 
14 
13 
13 

12 
12 
12 
14 
14 


10 
11 
9.6 
10 
10 

9.6 

7.2 
7.2 
6 
6.4 

6.8 

5.7 

6 

6.4 

5.4 


1910-11. 
16 


45 
30 
20 
10 
10 

10 
10 
10 
10 
10 

140 
60 
30 
30 
25 
25 


181 
170 
160 
160 
150 

140 
170 
510 
280 
170 

145 
146 
216 


135 
130 
125 
120 
115 

110 
110 
105 
105 
100 

95 
90 
90 

85 
85 
80 


37 
35 
33 
30 
30 

33 
33 
32 
29 

28 

98 
74 
63 
21 
20 


12 

12 

12 
9.2 
6.4 

5.7 
6.8 
8.0 
8.0 
8.0 

8.4 
8.4 
7.6 
8.8 
9.2 
10 


5.4 
4.8 
4.5 
5 1 


2 


17 


3 


18 , 


4 


19 


5 


20 


5.4 
5.4 


6 


21 


7 . - 


22 


6 


8 


23 


5.4 


9 


24 


6 


10 


25 


6 


11 


26 


6 


12 . . 


27 


6 


13 


28 


6.8 


14 


29 


6.4 


15 


30 ... 




6 




31 
















Day. 


Oct. 


Nov, 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jmie. 


July. 


Aug. 


Sept. 


1912-13. 
1 






9 
9 
9 
9 
9 

9 
6 
6 
6 
.6 

9 
9 
9 
9 
9 

9 
9 
9 
9 
9 

9 
9 
9 
9 
9 

9 
9 
9 
9 
9 
9 


9 
9 
9 

9 

10 
11 
12 
13 
14 

14 

14 
14 
14 

86 

86 
60 
28 
24 
14 

14 
11 
11 
11 
11 

11 
9 
9 
9 
9 
9 


11 
11 
11 
11 
11 

11 
14 
17 
17 
18 

15 
14 
12 
11 
10 

9 
9 
9 
9 
9 

14 

88 
46 
28 
32 

36 
36 
33 


31 
28 
24 
17 
17 

17 
17 
17 
20 
24 

28 
36 
46 
36 
24 

20 
17 
14 
14 
14 

11 
14 
14 

28 
41 

17 
14 
14 
11 
11 
11 


11 
11 
11 
11 

14 

14 
14 
14 
11 
9 


9 
9 
■ 9 
9 

9 
9 
14 
17 
11 

9 
9 
6 
6 
6 

6 
6 
6 
6 
9 


9 

8 
8 

7 

5 

5 
5 

5 

5 

5 
5 
5 

5 
5 
5 
5 
5 

5 



5 
5 
4 
4 


4 
4 
4 
4 
4 

4 
4 

4 
4 
4 

4 
5 
5 
5 
5 

5 
4 
4 
4 

5 

3 
3 
3 
3 

3 
3 
3 
3 
3 


3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

3 
2 
2 
2 
2 

3 
3 
3 
3 
3 
3 


3 
3 
3 
3 
3 

. 3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

3 
3 
3 
3 
, 3 

3 
3 
3 
3 
3 

3 
3 
3 
3 
3 
3 


2 


2 






2 


3 






2 


4 






2 


5 






2 


6 






2 


7 






2 


8 






2 


9 







2 


10 






2 


11 , ..„. 






2 


12 






2 


13 . . 






2 


14 




6 
6 

6 
6 
G 
6 
6 

6 
6 
5 

I 

6 
6 
6 
9 
9 


2 


15 




2 


16 




2 


17 




2 


18.... 




2 


19 




2 


20 




3 


21 




3 


22 




3 


23 




3 


24 




3 


25 




3 


26 




3 


27 




3 


28 




3 


29 




3 


30 


r^ 


5 


31 

















SAN LUIS KEY RIVEK BASlK. 



189 



Daily discharge, in second-feet, of San Luis Rey River near Pala, Calif., for 1906-1916- 

Continued. 



Day. 


Oct. 


Nov. 


Dee. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jiine. 


July. 


Aug. 


Sept. 


1913-14. 
1 


5 
3 
3 
3 
3 

3 
3 
3 
3 
3 

3 
3 
3 
3 

4 

4 
3 
3 
3 
3 

3 
3 
2 
2 
2 

2 
2 
2 
2 
2 
2 

3 
4 
5 
5 

5 

4.5 

4 

3.5 

3.5 

3 

3 

3 

3 

3.5 

3.5 

3.5 

■4 
4 
4 
4.5 

4.5 
5 
5 
5 

5 

4.5 
4.5 
4.5 
5 

5 


2 
2 
2 
2 
2 

2 
2 
2 
2 

2 

2 
2 
2 
2 
2 

2 
4 
5 
5 
6^ 

7 

7 

7 
7 

7 
7 
7 
6 
5 

5 

4.5 

4.5 

4.5 

4.5 

4.5 

4.5 

4.5 

6 

6 

6 

7.5 

7.5 

6 

4.5 

4.6 

5 

5 

5 

5 

5 
5 
5 
5 

5.5 

5.5 

6 

6 

6 


4 
3 
3 
4 
4 

5 

5 
5 
5 
5 

5 
5 
5 
5 
6 

6 
6 
6 
6 
6 

6 

8 
10 
10 
10 

9 
9 
9 
7 
9 
10 

9.5 
10 
6 
6 
6 

8 

8 

8.5 

8.5 

8.5 

8.5 

8.5 

9 

9 

9 

9 

9.5 
13 
10 

8 

8 
9 
9 

8 
8 

7.5 
7.5 
7.5 
7.5 
7.5 
7.5 


10 
10 
10 
10 
10 

10 
10 
10 
10 
12 

10 

9 

9 
10 
11 

30 
15 
26 
23 
18 

16 
14 
13 
13 
29 

470 
1,190 
540 
280 
146 
110 

6.5 
6.5 
6.5 
6.5 
6.5 

6.5 

6 

6 

6 

6 

6 
6 
6 
6 
6 

6 
6 
6 
6 
6 

8 
38 
42 
15 
20 

28 
16 
16 
975 
1,560 
660 


72 
64 
58 
44 
40 

40 
40 
40 
40 
40 

40 
40 
40 
40 
40 

40 
40 
55 
714 
820 

2,910 
840 
515 
355 
280 

212 
154 
148 

475 
1,290 
525 
311 
247 

207 
161 
66 
207 
1,760 

3, 300 

1,760 

790 

500 

427 

333 
289 
227 
215 
311 

500 
427 
356 
311 

289 

289 
289 
289 


136 
124 
93 
80 
57 

47 
44 
44 
43 
47 

47 
40 
34 
30 

28 

29 
30 

29 
28 
28 

28 
28 
28 
28 
28 

28 
30 
71 
100 
184 
117 

289 
379 
690 
500 
451 

451 
403 
356 
333 
356 

289 
268 
247 
247 
227 

207 
188 
184 
176 
168 

168 
161 
154 
144 
141 

134 
134 
151 
168 
151 
134 


40 
31 
32 
39 

46 
44 
42 
39 
39 

39 
38 
36 
34 
33 

33 
33 
33 
33 
33 

33 

82 
93 
51 
46 

35 
31 
30 
32 
35 

134 
118 
103 
103 

9S 

100 
98 
87 
73 
69 

66 
64 
64 
63 

77 

90 
73 
71 
68 
60 

98 
550 
333 
289 
247 

223 
176 
176 
207 
356 


47 
35 
26 
22 
20 

20 
20 
19 

18 
18 

17 
17 
16 
16 
15 

15 
14 
14 
13 
13 

12 
11 
11 
10 
10 

9 
9 

8 
8 
8 
8 

680 
790 
. 660 
602 
975 

722 
602 
575 
550 
525 

475 
451 
403 
333 
289 

289 
268 
311 
289 
288 

247 
239 
219 
125 
211 

207 
203 
195 
191 
180 
168 


7 

6 
6 
6 
6 
6 

5 
5 
5 
5 
5 

158 
151 
141 
134 
125 

112 
103 
95 
85 

77 

77 

77 
66 
66 

56 
47 
38 
38 
38 

38 
38 
30 
30 
30 

23 
23 
21 
18 
15 


4 
4 
4 
4 
4 

4 
4 
4 
4 
4 

4 
4 
4 
3 
3 

3 
3 
3 
3 
3 

2 
2 
2 
2 

2 

2 
2 
2 
2 
30 
5 

13 
13 
13 

13 
13 

13 
13 
13 
•13 
13 

12 
12 
12 
12 
10 

7 
6 
6 
6 
6.5 

7 
7 
7 
7 
7 

7 
7 

7 
7 
7 
7 


4 
4 
4 
4 

4 

3 
3 
3 
3 
3 

2 
2 
2 
2 
1 

6.5 

6.5 

6.5 

6 

6.5 

6.5 

6.5 
6.5 
6.5 
6.5 
6.5 

6 

6.5 

6.5 

6.5 

7 
6 

6.5 
6.5 
9 . 

14 
10 

9 

7 

5 

6.5 


1 


^ 


1 


3 


I 


4 

5 


2 
2 


6 


2 


7 


3 


8 


3 


9 


3 


10 


2 


11... 




12 




13 




14 




15 




16. 




17 




18 




19 




20 




21 


1 


22 


2 


23 


2 


24 


3 


25 


2 


26 


1 


27 


1 


28 


1 


29 


1 


30.-.. 


1 


31 




1914-15. 
1 


6.5 


2 


7 


3 


8 


4 


8 


5 


7 


6 


6 


7 .. 


6 


8 


6 


9 


6 


10 


6 


11 


6 


12 


6 


13 


6 


14 


6.5 


15 


6.5 


16... • 


6.5 


17 


6.5 


18 


6.5 


19 


6.5 


20 


6.5 


21 


6.5 


22 


7 


23 


7 


24 - 


7 


25 


7 


26 


7 


27 


6.5 


28 


6 


29 


5.5 


30 


5.5 


31 









190 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERI^ CALIFORNIA. 



Daily discharge, in second-feet, of 8 an Luis P^ey River near Pala, Calif., for 1906--1916— 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Day. 


Oct. 


Nov. 


Dec. 


Jan. 


1. 


1915-16. 


5 
5 

5 

4.5 
4.5 
4.5 

5!5 
5. 5 
5.5 


6 
6 
6 
6 
6,5 

I' - 
10 

9.5 
9.5 

9 


8 

8.5 

8,5 

16 

36 

20 
14 

12 
11 

9 

11 
11 
11 
16 
35 


18 
18 
27 
18 
18 

26 
25 
18 
34 
119 

289 
161 
99 
92 
311 


191.5-16. 
IC 


5.5 

5.5 

5.5 

6 

6 

G 

6 

6.5 

6.5 

6.5 

6.5 

6.5 

6 



6 

6 


7 

7.5 
7.5 

7.5 
7.5 
7.5 

7^5 

7.5 

8. 

8 

8 

S 


31 

16 

S.5 
8.5 
7.5 

7.5 
7.5 

7 
7 

7 

7.5 

9 
25 
24 


1,660 


2 . ,. 


17 


3 


18 




4 .... 


19 




5... 


20 




6 


21 




7 , 


22 .... 




8 


23 




9 




24 




10. 




25 




11. 


26 




12 


27 




13 ... 


28 




14 


29 




15 --- 


30 








: 31 











Note. — Daily discharge dei:crmined as follows: 1907, from ratiiis; curves covering short periods. 

1908, by shifting- contro! m_ethod. 

1909-10: Jan. 1 to Feb. 13, 1910, from fairiy vveU defined curves. 

1910-11: Feb. 14 to June 30, Jan. 1 to Feb. 4, 1911, Feb. 5 to Mar. 4, Mar. 5 to Tuuj 3 ), hym fairly v/ell de- 
fine rating cm'ves; no record July to December in 1910 and 1911. 

Discharge interpolated for days on which gage was not read in Jamiary to June, 1010. Discharge esti- 
mated from hydrographs of neighboring streams for days on which gage v/ as not read in January to June, 
1911. Since installation of concrete control in September^ 1912, dischargo lias l>3e]i computed from rating 
curves well defined except for high v/ater. Recording gage not in operatiuii 'Jay .*, to September 30, 1914, 
discharge estimated by interpolation between measurements and by comparison of flow near Mesa Grande. 

1914-15: Oct. 1, 1914, to July 8. 1915 and July 13 to Sept. 30 computed from two rating curves well defined 
below 1,000 second-feet: high-water extension of rating curve determined from study of record of fiow on 
San Luis Rev River near Mesa Grande and high-water curve for 1910. 

1915-16: Oct. 1, ]915, to Jan. 16, 1916, from two fairly well defined rating ciu'ves. No gage record after 
Jan. 16, 1916, dischai'ge estimated from meaaa rainfall computed for drainage aroa and compared with records 
of flow at stations on San liUis Rey Rivet near Mesa Grande and Oceanside. 

Monthly discharge of San Luis Rey River near Pala, Calif, for 1903-1916. 





Discharge in second-feet. 


Run-off 
(total in 
acre- 
feet.) 


Month. 


I3ischargF in second-feet. 


Run-ofl 

(totalin 
acre- 
feet.) 


Month. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


1903-4. 
October (23 

days) 

November.... 

December 

January 

February 

March 


1.5 
1.5 

1.5 
1.5 

2.5 
348 
104 
35 
12 
9 
2 
2 


1.5 
1.5 

20"'' 
12 

9 

3 

2 

2 


1.1 
1.4 
1.2 
1.5 
2 
41.6 
43.6 
16.2 
10.8 
3.8 
2 
2 


50 
83 
74 
92 
115 
2,558 
2,595 
996 
643 
234 
123 
119 


1905-6. 

October 

November.... 

December 

.January 

February 

March 

April 


3.8 

96 

47 
232 
241 
13, 000 
620 
260 
128 

19 

43 

19 


2.8 
3.8 

10 
9 

10 

17 
114 


3.2 
17.8 
18.3 
21.4 
28.6 
1,120 
301 


197 
1,059 
1,125 
1,320 
1,590 
68,900 
17. 900 


April 


May 


100 158 
19 65. 6 
19 19 
3 10.3 


9,720 


May 


June 


3,900: 




! July - .. 


1, 170 


July 


August 

September.... 

The year 

3906-7. 

' October 

i November — 

December 

\ January 

; February 

1 March 

April 


633 


August 

September.... 


3 3. 7 220 


13, 000 


2.8 • 147 




The period.. 








7,680 




1904-5. 

October 

November.... 

December 

January 

February 

Marcli .... 

April 


13 
3 

5.5 
66 
711 
4,265 
139 
282 
35 
9 

3.5 
3 


2 

2 

2 

3 
13 

2 
27 
27 
11 

3 

3 

2.5 


2.5 
2.4 
3.7 

19.1 
151 
336 

64.9 

88.1 

23 
4.1 
3.0 
2. 6 


154 

143 

227 

1,174 

8,386 

20,660 

3,862 

5,417 

1,369 

252 

184 

155 


3 

28 
550 
2,800 
910 
2,100 
410 
98 
40 
7.6 
2.4 
4.5 


3 

3 

9 
151 
79 
85 
98 
33 

8 

1 . 
.6 

1.8 


L 

79. S 
541 
154 
329 
167 
62.5 
22.8 
3.27 
1.42 
2.22 


184 
494 
4,880 
33,300 
8,550 
20,000 
9,940 


M^y .... 


1 May 


3, MO 






1,360 


Julv 


July - ... 


201 


August - 

September.... 


August 

September.... 

The year.... 


87 
132 


The year . . . 


4,265 


2 


58.4 


42,000 


2,800 


.6 


114 


83,000 



SAI^ LUIS KEY mYEB. BASIN. 



191 



Monthly discharge of San Luis Rey River near Pala, Calif., for 1903-1916 — Continued. 



Discharge in second-feet. 



Maxi- 
mum. 



Mini- 
mum. 



Run-off 
(total in 
acre- 
feet.) 



Disebarge in second- feet. 



Maxi- Mini- 
mum. m.um. 



Run-ofl 

(total in 
acre- 
feet.) 



1907-8. 

October 

November 

December 

January 

February 

March '. . . 

April 

May 

June 

July 

August 

September 

The year . . . 



October 

November.. 
December . . 

January 

February... 
March ..'.-.. 

April 

May 

June 

July 

August 

September.. 



22 
480 
544 
169 



28.1 

27.8 

13.3 

62.6 

175 

^1.1 

21.3 

13.2 

7.4 

3.0 

3.4 

2.0 



1,730 

1,650 

818 

3,850 

10, 100 

3, 760 

1,270 

812 

440 

184 

209 

119 



5 

7 

12 

5,240 

930 

425 

182 

44 

8 



7 
110 
67 



34.8 



24,909 



3.5 
0.1 
8.6 

198 

332 

137 
91.0 
27.6 
6.23 
5.35 
5.13 
5.00 



215 

363 

529 

12,200 

18,400 

8, 420 

5,410 

1,700 

371 

329 

315 



The year.. 

1909-10. 
October..... 
November.. 
December . . 

January 

February 

March 

April 

May 

June 



68. J 



5 
23 
350 
3,770 
100 
259 
89 
20 
7.2 



The period. 



1911. 
January . . . 
February. . 

March 

April 

May 

June 



375 
1,130 
805 
300 
18 
11 



The period, 



5 

13 
119 

41 

35 

21 
6.6 
4.8 



5 

29 



5.7 
4.5 



5.00 
12.4 
107 
431 
66.7 
70.6 
.51.1 
9.99 
5.47 



307 

738 

6,580 

26,. 500 

3,700 

4,340 

3,040 

614 

?25 



46, 100 



1912-13. 
November... 
December . . . 

January 

February 

March 

April 

May 

Jime 

July 

August 

September... 

The period 

1913-14. 

October 

November... 
December — 

January 

February 

March 

Acril 

M'ay 

June 

.July 

August 

September... 



The year. 

1914-15. 

October 

November.. 
December . . 

January 

February... 

March 

April 

May 

June 

July 

August 

September.. 



10 

1,190 

2, 910 

184 

93 

47 

7 

30 



13 
1,.560 
3,300 
690 
550 
975 
158 
13 
14 



50.1 

192 

187 
78.0 
11.3 
6.75 



3,080 
10,700 
11,500 
4,640 
695 
402 



31,000 



The year 

1915-16. 

October 

November 

December . . . 
January 



The period 



18.5 
19. (> 
20.9 
9.8 
5.6 
3.9 
2.9 
3.0 
2.4 



40 
28 
30 



2.8 
4.0 
6.3 
99.5 
277 
55. 1 
41.3 
16.1 
5.0 
4.1 
1.9 
1.5 



3 
4.5 



4.18 
5.28 
8.37 

113 

577 

260 

144 

397 
67.6 
9.56 
7.03 
6.50 



4.5 
6 



209 

529 

1,140 

1,090 

1,290 

583 

344 

232 

178 

184 

143 



5,920 



172 
238 
387 

6-, 120 
15,400 

3,390 

2,'tr>o 

990 
298 
2.52 
117 



257 

314 

515 

6,9.50 

32,000 

16,000 

8,570 

24,400 

4,020 

588 

432 

387 



94,400 



343 

448 

824 

201,000 



203,000 



SA£T LUIS REY RIVES, AT PALA, CALIF. 

Location.— In NW. \ SE. \ sec, 2&, T. & S., R. 2 W., at highway bridge on Escon- 
dido-Pala road at Pala, San Diego County. 

Drainage area. — Not measured. 

Elevation. — About 400 feet above sea level. 

Records available. — ^April 1 to June 17, 1912. 

Gage. — Painted on right wing wall just above bridge. 

Discharge measurements. — Made from bridge or by wading. 

Channel kist> control. — Sand; shifting. 

Diversions. — See San Luis Rey near Pala (p. 182). In addition Pala Indian Reser- 
vation canal, on left bank San Luis Rey River, diverts water three-fourths mile 
above bridge for irrigation. The intake of Morena ditch is on right bank one- 
fourth mile below bridge. 

Regulation. — None. 



192 SURFACE WATER OF PACIFIC SLOPE, SOUTHERIn^ CALIFORNIA. 

Accuracy.— Stage-dischar ge relation not permanent. Gage read to hundredths 
once daily. Daily discharge computed from two rating curves covering short 
periods and by shifting-control method. Records fair. 

Discharge measurements of San Luis Rey River at Pala, Calif., for 1912. 



Date. 


Made by — 


height. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Mar. 28 


H. L. Davis 


Feet. 

(a) 

2.92 

3.45 


Sec.-ft. 
64 
61 
126 


May 14 
June 15 


E. W.Case 


Feet. 
3.00 
2.80 


8ec4, 


Apr. 2 
20 


E. C. Ebert 


H. L. Davis 


.5 


H. L Davis.. 













a Not referred to gag( 
Note. — Measurements made by wading near gage. 



Daily discharge, in secon 


dfeet, ofS 


an Luis Rey 


River at Pala, Calif, for 1912 




Day. 


April. 


May. 


June. 


Day. 


April. 


May. 


June. 


Day. 


April. 


May. 


June. 


1 


78 
58 
53 
48 
50 

46 
29 
29 
35 
46 


50 
48 
29 
20 
12 

12 
12 
127 
200 
140 


0.5 
.5 
.5 
.5 
.5 

1.6 

'.5 
.5 
.5 


11 


205 
168 
133 
154 
147 

183 
184 
163 
143 
114 


97 
79 
48 
29 
20 

0.5 
12 

24 
24 
24 


.5 
.5 
.5 
.5 
.5 

1.0 
1.6 


21 


97 
90 
83 
68 
62 

62 
60 
58 
58 
52 


12 
10 

6.2 
6.2 
.5 

.5 
.5 
.5 
.5 
.5 
.5 




2 


12 


22 




3 


13 


23 





4 


14 


24 




5 


15 


25 




6 


16 


26 




7 


17. 


27 




8 


18 


28 




9 


19 


29 




10 


20 


30 








31 













NoTK.— Daily discharge determined from rating curves applicable as follows: Apr. 1-10, 1912, poorly 
defined; Apr. 20 to June 17, 1912, fairly well defined. Shifting-control method used Apr. 11-19. 





Monthly discharge of San Luis Rey River at Pala, Calif ., for 1912. 






Month. 


Discharge in second-feet. 


Run-off 
(total in 
acre-feet). 




Maximum. 


Minimum. 


Mean. 


A pril : 


205 
200 
1.6 


29 
.5 
.5 


91.9 

33.7 
.66 


5,470 


May . . . . 


2,070 


June 1-17 


22.3 







SAN LUIS HEY RIVER AT BOITSALL, CALIF. 

Location. — In SW. \ sec. 20, T. 10 S., R. 3 W., at concrete highway bridge at Bonsall, 
San Diego County, just above Moosa Canyon, 14 miles below gaging station near 
Pala, and 14 miles above mouth of river. 

Drainage area.' — 465 square miles (measured on topographic maps). 

Elevation. — About 150 feet above sea level. 

Records available. — April 16, 1912, to January 31, 1916. 

Gage.— Staff in three sections on left bank at bridge, in use January 23 to March 25, 
1915, and October 1, 1915, to January 15, 1916. Gage previously used was in three 
sections on right bank 150 feet below bridge. Original datum has not been 
maintained. 

Discharge measurements. — Made from highway bridge or by wading. 

Channel and control, — Sand; somewhat shifting. 

Extremes op discharge. — 1912-1915: Maximum stage, 7.0 feet February 11, 1915 
(discharge, 9,000 second-feet); maximum stage for 1916 not known, as all equip- 
ment was destroyed by the flood of January, 1916. No flow for several months 
each year. 



SAN" LUIS REY EIVER BASIl^T. 



193 



Diversions. — See San Luis Rey River near Pala (p. 182). In addition, Morena 
ditch and Pala Indian Reservation canal divert water in the vicinity of Pala for 
irrigation. Water for irrigation is also pumped from wells along the river. 

Regulation . — None. 

Accuracy. — Stage-discharge relation not permanent. Rating tables fairly well 
defined except for flood stages. Gage read to hundredths twice daily. Daily 
discharge ascertained by applying mean daily gage height to rating tables cover- 
ing short periods, by shifting-control m(*hod, or interpolated between discharge 
measurements for periods when the change in stage was slight. Records fair. 



Discharge measurements of San L 


ids Rey 


River at Boiisall, Calif. 


, for 1912-1916. 


Date. 


Made by— 


Left 
bank 
gage. 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


Le/t 
bank 
gage. 


Gage 
height. 


Dis- 
charge 


1912. 




Feet. 


Fed. 


Sec.-ft. 


1914. 




Feet. 


Feet. 


Sec.-ft. 


Aor. 16 


F. C. Ebe 
H.L. Da 
F. C. Ebe 

E. W. Ca 

F. C. Ebe 

E. W.Ca 

F. C. Ebe 


rt 




1.88 
1.93 
1.61 
1.60 
1.53 
1.29 
1.40 


219 
174 
48 
44 
16 

.3 
3.2 


Dec. 14 
22 

1915. 

Jan. 10 

23 

24 

25 


F.C. Ebert 

do 

Lee and Sleppy... 


1.76 
1.96 


1.02 
1.02 

1.02 
1.25 
1.08 
1.22 


2.3 


^ 19 


vis 




10 


May 3 


rt 






14 


36 . 






22 


rt 




12 


June 15 


6 




F.C.Ebert^...... 

do 

do 


2.07 
1.88 
1.91 


65 


Dec. 19 


rt 




33 








38 


1913. 










Feb. 1 


K.B. Sleppy 




1.48 


571 


Jan. 16 


F. C. Ebert 




1.75 


97 


5 


do 


2.55 


1.71 


268 


17 


do 




1.63 


62 


11 


F.C. Ebert 


4.28 


3.30 


3,2.30 


19 


do 




1 45 


25 


12 


do 


3.65 


2.48 


2,220 


24 


do 




1.35 


9.1 


13 


do 


2.90 


1.84 


790 


25 


do 




1.39 


11 


14 


do 


2.65 


1.76 


616 


Feb. 14 


do 




1.42 


12 


27 


do 


2.40 


1.43 


304 


20 


do 




1.40 


9.8 


Mar. 1 


do 


2.45 


1.50 


602 


21 


do 




1.43 


15 


2 


do 


3.20 


2.20 


1,380 


22 


do 




1.60 


41 


11 


do 


2.43 


1.61 


312 


Mar. 12 


do 




1.40 


31 


26 


do 


2.24 


1.53 


123 


15 


Case and Mc Fad- 








Apr. 7 


do 


2.24 


1.48 


101 




den , 




1.51 
1.44 
1.39 


28 
21 
12 


17 

27 
May 6 


D. L.Lee 




1.46 
1.58 
2.06 


71 


21 


F. C. Ebe 
do... 


rt 




W.J. Isbell 




132 


Apr. 8 






W.D.McFadden 




943 


19 


H. D. McGlashan. 




1.35 


9.6 


16 


F.C. Ebert 


2.54 


1.78 


237 


May 9 


F.C. Ebert 




1.20 


.3 


21 


do 


2.41 


1.73 


232 


June 13 


do 




1.13 


a. 2 


July 6 

13 

Aug. 2 


Yv^ E. Keenan.... 
F.C. Ebert 


1.82 


1.23 


8.0 

,7 


1914. 


do 







b.O 


Jan. 17 


F.C. Ebert 




1.31 


7.3 


Dec. 2 


do 


' 


1.94 


8.7 


24 


do 




1.34 


16 


13 


do 




1.96 


15 


31 


do... 






1.25 


147 


22 


H. D. McGlashan 




1.94 


17 


Feb. 4 


do... 






.97 


51 












Mar. 1 


do... 






1.26 


200 


1916. 










10 


do... 






1.12 


64 


Jan. 13 


MeFadden and 








28 


do... 






1.02 
.97 
1.10 


44 
12 
43 


Feb. 6 






2.18 


77 


Apr . 18 


do... 

do... 






G. S. Strout 




955 


25 










May 9 


do... 






1.01 


20 












14 


do... 






.95 


10 













o Estimated. & Stream dry. 

Daily discharge, in secondfeet, of San Luis Rey River at Bonsall, Calif. , for 1912-1916. 



Day. 


Apr. 


May. 


Jime. 


Day. 


Apr. 


May. 


June. 


Day. 


Apr. 


May. 


Jime. 


1912. 
1.. 




58 
19 
27 
14 
14 

14 
14 
77 
170 
160 


L8 
1.8 
1.8 
LO 
1.0 

LO 
.6 
.0 
LO 
1.0 


1912. 
11 




109 

58 
40 
40 
58 


LO 
LO 
LO 
LO 
LO 

1.0 
LO 
.0 
.0 
.0 


1912. 
21 


126 
109 
70 
70 
70 

47 
77 
35 
27 
70 


14 

14 

12 
6.0 
5.0 

5.0 
5.0 
3.0 
3.0 
L8 
LO 


0.0 
.0 
.0 
.0 
.0 

.0 



2 




12 




22 


3 




13. 




23 


4 




14 




24 . 


5 




15 




25 


6 




16 


202 
218 
228 
151 
117 


26 


7 




17 


27 


8 




18- 


28 


' () 


9 




19 


29 





10 




20 


30 











31 













142131°— 21— wsp 447- 



-13 



194 SURFACE WATER OF PACIFIC SLOPE, SOUTHERIs" CALIFORNIA. 

Daily discharge, in second-feet, of San Luis Hey River at BonsalL Calif , for 1912-1916- 

Continued. 



Day 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1912-13. 
1 








3 

8 
8 
8 
3 

14 
14 
14 
14 
27 

14 
27 
27 
27 
14 

77 
53 
53 
30 
30 

14 
14 
14 

14 
14 

14 
14 
10 
14 

14 
14 

5 
4 
5 
4 
4 

4 
4 
4 
4 
4 

5 
5 

4 
4 
5 

7 
7 

15 
30 
25 

20 
16 
16 
16 
27 

380 
1,530 
455 
245 
166 
147 


14 
10 
14 
10 
14 

14 
30 
42 
53 
32 

16 
10 
10 
10 
10 

6 
10 
10 
10 
10 

16 
105 
70 
56 
70 

195 
150 
154 

128 
92 
76 
51 
46 

46 
46 
46 
46 
33 

33 
33 
33 
33 
33 

33 
33 
33 
510 
990 

2,820 

■■■2i6" 


157 
140 
40 
33 
36 

39 
30 
23 
25 

27 

22 
23 
17 
16 
14 

22 
22 
22 
22 
14 

22 
22 
22 
22 

53 

53 
53 
53 
30 
30 
14 

200 
210 
200 
190 
180 

135 
125 
115 
100 
64 

64 
64 
64 
64 
64 

64 
49 
34 
34 
34 

34 
34 
34 
34 
34 

34 
34 
44 
121 
120 
137 


14 
14 
14 
14 
14 

14 
14 
14 
14 
14 

14 
13 
13 
12 
12 

11 
11 
10 
10 
9 

9 

1 

7 
6 

5 
4 
3 
2 
1 

81 
62 
41 
44 
43 

41 
40 
39 
38 
36 

35 
32 
28 
25 
22 

19 
15 
12 
6 




18 
55 
40 
55 

40 
29 
29 
29 
40 


0.3 
.3 
.3 
.1 
.1 

.2 
,3 
.3 
.3 
.3 

.3 

:l 

.3 

.3 

.3 
.3 
.3 
.3 
.3 

.3 
.3 
.3 
.3 

.3 

.3 
.3 
.3 
.3 

.2 
.2 

29 
29 
40 
40 
40 

106 
70 
70 
12 
12 

12 

6 

6 
12 
12 

6 
6 
6 
6 
6 

6 

6 
6 
6 

6 
6 
6 
6 
4 
1 


0.3 
.3 
.3 
.2 
.2 

.2 
.2 
.2 
.2 
.2 

.2 
.1 
.1 
.1 








2 














3 














4 














5 














6 




























8 














9 















10 














11 














12 






3 
3 
3 
3 

3 
3 

1 

3 

3 
1 

3 
3 
3 

3 
3 
3 
3 
3 
3 

1 
1 
1 
1 
2 

2 
2 

4 
4 
4 

4 
4 
4 
4 
4 

4 
4 
4 
5 
5 

5 
5 

7 
7 

5 
5 
5 
5 
5 
5 








13 












14 












15 












16 














17 . . 













18 












19 








1 




20 












21. 








1 




22 








i 




23 












24 








i 




25 








: 




26 








i 




27 














28 














29 














30 















31 














1913-14. 
1.... 














2 












3 










4. 










5 










6 












7 












8 












9 












10 












11 












12 . . 


! 








13 










14 










15 










16 


1 








17 










18 










19 










20............ 










21 


1 








22 










23 












24 












25 












26 












27.... 














28......=..o 














29 














30 














31... 















SAN^ LUIS EEY EIVEE BASIJT. 



195 



Daily discharge, in second-feet, of San Luis Rey River at Bonsall, Calif., for 1912-1916 — • 

Continued. 



Day. 


Oct. 


Nov, 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1914-15. 
1 






1.5 
1.5 
1.5 
1.5 
1.5 

1.5 

1.5 
1.5 
1.5 

1.5 

1.5 
20 
10 

2.5 

3 

4 
5 
6 

7 
8 

9 

10 
10 
10 
10 

10 
10 
10 
11 
11 
11 


11 
11 
11 
12 
12 

12 
12 

12 
12 
12 

12 
12 
12 
12 
12 

12 
12 
12 
12 
12 

12 
43 
65 
38 
38 

38 
38 
38 
3,150 
3, 730 
793 


. 571 

1,100 

1,920 

136 

312 

195 

163 

136 

1,500 

5,130 

7,000 

1,680 

1,020 

609 

492 

341 
300 
162 
113 
162 

440 
341 
224 

224 
1,340 

300 
224 
162 


602 
1,020 
440 
725 
440 

388 
388 
388 
440 
440 

341 
326 
311 

296 
282 

267 
252 
238 
223 
208 

194 
179 
164 
150 
135 

120 
98 
98 
170 
120 
120 


120 
98 
80 
80 
80 

SO 
SO 
62 
62 
62 

62 
80 
80 
98 
98 

98 
98 
80 
80 
80 

120 
600 
232 

198 
142 

142 
142 
142 
200 
400 


610 
900 
620 
515 
2,050 

1,010 

715 
680 
450 
415 

500 
415 
380 
320 
220 

232 
232 
310 
232 
232 

198 
198 
198 
198 
198 

198 
170 
170 
170 
142 
142 


142 
142 
142 
142 
142 

120 
120 
120 
120 

98 

80 
80 
80 
80 
62 

62 
45 
45 
45 

45 

45 
45 

45 
45 
28 

28 
28 
28 
28 
28 


28 
14 
14 
14 
14 

14 

12 

6 

4 
2 

.7 
.7 
.7 

.7 
.7 
.7 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.5 
.5 
.5 
.5 
.5 
.J 


0.4 

.4 
.3 
.3 
.3 
.3 

3 
.3 

.2 
.2 
.2 

.2 
.2 
.2 
.1 
.1 

.1 
.1 
.1 
.1 

.05 

.05 
.05 
.05 
.05 
.05 




2 








3 








4 








5 








6 
















§ 








9 ..: 






10. ' . ... 






1] 






12 1 






13 






14 ' 






1.5 1 


1 

1 
1 
1 
1 
1 

1 
1 
1 

1 
1 

1 
1 
1 
1 
1 




16... 




17 i 




18 ! 




19 .....J 




20 . . i 




21 .. 






22. 






23 






24 






25 






26 






27 






28 






29 






30-. i 






31 1 


















Day. Nov. 

i 


Doc. 


Jan. 


Day. 


Nov. 


Dec. 


Jan. 


Day. 


Nov. 


Dec. 


Jan. 


1915-16. 
1 










1 

1 
1 
11 


4 
11 
11 
34 
50 

34 
22 
22 
11 
11 


57 
57 
57 
57 
42 

42 
57 

57 
57 
95 


11 
12 
13 
14 
15 

16 
17 

18 
19 
20 


1915-1( 






11 
11 
11 

22 

22 

42 
42 
29 
29 
18 


320 
162 

86 
86 
268 


21. 


1915-16. 




4 


18 
18 
18 
18 
18 

18 
29 
29 
29 
143 
95 




2 












3 






23. 
24. 
25. 

26. 
27. 
28. 
29. 
30. 
31. 








4 












5 












6 












7 














8 














9 














10 





























































Note, — Daily discharge determined as follows: 1912: Apr. 16-18, by shifting-control method; Apr. 
19 to June 17, from a fairly well defined rating curve. 

1912-13: Dec. 11, 1912 to Ar»r. 9, 1913 and May 1 to June 14, 1913, from fairly well defined rating curves 
covering short periods; Apr. 10-30, by shifting-control method. 

1913-14: Dec. 1, 1913 to June 25, 1914. from poorly defined rating curves covering short periods and by 
shifting-control method. 

1914-15 Nov . 15, 1914, to Aug. 30, 1915, from fairly well defined rating curves covering short periods and 
by shifting-control method (new gage on right bank used Jan. 23 to Mar. 25). 

1915-18: Oct. 1 to Nov. 6 practically dry; Nov. 7-15 and Dec. 16, 1915, to Jan. 15, 1916, read from two 
fairly well defined rating curves. No gage-height record after Jan. 16, 1916; discharge estimated from 
mean rainfall record computed for drainage area and compared with records of flow at stations on San Luis 
Rey River near Mesa Grande and Oeeanside. 

No estimates of discharge Nov. 20 and 21, 1913 and Feb. 22-28, 1914; Otherwise stream dry on days when 
no discharge is given. 



196 SURFACE WATER OF PACIFIC SLOPE^ SOUTHERN CALIFORNIA. 

Monthly discharge of San Luis Rey River at Bonsall, Calif., for 1912-1916. 



1912. 
April 16-30.. 

May 

June 

July 

August 

September... 

1912-13. 
December... 

January 

February 

March ... 

April 

May 

June 

■The year .... 

1913-14. 
December . . . 

January 

Feb. 1 to 21 and 28 

March 

April 

May. 

June. 



Discharge in second- 
feet. 



Maxi- 
mum. 



170 
1.8 
.0 
.0 
.0 



77 
195 
157 
14 
.3 
.3 



7 

1,530 

2,820 

210 

81 

106 



Mini- 
mum. 




3 
6 
14 



33 
34 


1 




108 
33.7 
.60 
.0 
.0 
.0 



1.9 
19.8 
41.1 
36.1 
10.2 
.28 
.09 



4.0 
102 
246 
87.5 
33.1 
18.9 
1.3 



Rma-off 
(total in 
acre- 
feet). 



3,210 

2,070 

35.7 

.0 

.0 

.0 



117 

1,220 

2,280 

2,220 

607 

17 

5 



6,470 



246 
0, 270 
10, 700 
5.380 
i;970 
1,160 
77 



1914-15. 
November. . . 
December . . . 

January 

February 

March 

April 

May 

June 

July 

August 



1 

20 

3,730 

7,000 

1,020 

600 

2,050 

142 

28 



The year . 

1915-16. 

November 

December 

January 



The period., 



Discharge in second- 
feet. 



11 
143 




1.5 



62 
142 



0.53 
6.28 
265. 



133 

420 



1.7 

28.4 
4,180 



Run-off 

(total in 
acre- 
feet). 



32 

385 

16,300 

52, 100 

18,900 

7,910 

25, 800 

4,480 

300 

13 



101 

1,750 

257,000 



Note.— No flow October and November, 1912; July to November, 1913; July to October, 1914; and 
September and October, 1915. 

SAN LUIS EEY RIVER NEAR BOH^SALL, CALIF. 

Location. — In SW. \ sec. 31, T. 10 S., R. 3 W., near junction of Escondido liighway 
with Oceanside-Bonsall road, 2 miles southwest of Bonsall, and 7 miles northeast 
of Oceanside, San Diego County. 

Drainage area.— Not measured. 

Elevation. — About 200 feet above sea level. 

Records available. — July 26, 1916, to September 30, 1918. (Gage heights and 
discharge measurements only.) 

Oage. — Staff in three sections on left bank 200 feet northwest of junction of high- 
ways. Zero of gage 122.82 feet above sea level. Previous to August 9, 1916, 
datum was 0.9 foot lower. January 2, 1918, a new staff was installed on left bank, 
200 feet downstream, at an independent datum. 

Discharge measurements. — Made by wading near gage at low and medium stages; 
high-water measurements made from highway bridge at Bonsall. 

Channel and control. — Sand; very shifting. 

Diversions. — See San Luis Rey River at Bonsall, page 193. 

Regulation. — None. 

Accuracy. — Stage-discharge relation not permanent. Daily discharge not com- 
puted as sufficient discharge measurements have not been made to define the 
numerous changes in channel. Gage read to hundredths once daily. 



SA]^ LUIS EEY EIVEE BASIIT. 197 

Discharge measuremerds of San Luis Rey River near Bonsall, Calif., for 1916-1918. 



Date. 



Made by- 



Gape 
height. 



Dis- 
charge. 



Made hy— 



Ga.-e 
height. 



Dis- 
charge. 



1916. 
July 25 
26 
27 
28 
29 
30 
31 



Aug. 



10 
11 

12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
24 
24 
27 
28 
29 
30 
31 
Sept. 1 
2 



Silent and Lee 

...do 

...do 

...do 

...do 

...do 

...do 

...do. 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

...do 

R. A. Silent.. 

..do 

..do 

Silent and Lee 
D. L. Lee.... 

do 

do 

do 

do 

Silent and Lee 
D. L. Lee... 

...do 

...do 

...do 

...do 

...do 

...do 



Feet. 

"2.m 
2.00 
1.99 
1.97 
1.99 
2.00 
1.94 
1.94 
1.95 
1.97 



1.07 
1.00 



1.12 

"i.'vi 

1.11 
1.10 
1.12 
1.11 
1.14 
1.14 
1.12 
1.15 
1.28 
1.15 
1.18 
1.13 
1.08 
1.07 
1.05 
1.04 
1.04 
1.03 
1.02 
1.02 
1.05 
1.06 



Scc.-ft. 

5.8 
13 
15 
14 

8.8 
11 
12 

7.2 



7.5 
8.3 
5.8 
6.6 
2.4 
1.5 
6.8 
8.1 
7.9 
8.4 
7.2 
6.2 
9.1 
8.3 
9.7 

10 
8.2 

10 

22 

16 

16 

21 

13 

11 
9.8 
8.8 
7.9 
6.3 
4.3 



1916. 

Sept. 7 

8 

9 

10 

11 

12 

13 

14 

15 

Oct. 11 

Nov. 15 

24 

Dec. 20 

1917. 

Jan. 17 
21 

Feb. 11 
13 
23 
26 

Mar. 8 
16 
19 
27 
29 

Apr. 11 
21 

May 21 
25 

June 9 
30 

Nov. 16 
25 

Dec. 21 

1918. 
Jan. 2 
Feb. 20 
Mar. 5 
Apr. 23 
May 5 
June 22 



D. L. Lee. 

....do 

....do 



do 

....do 

..-.do 

....do 

-...do 

.-..do 

W. J. Isbell. 

do 

....do 

F. C. Ebert.. 



F.C.Ebert 

D. A. McClung.. 
.do. 



F.C.Ebert 

.-.-do 

D, A. McClung.. 

F.C.Ebert 

.do. 



D. A. McClung.. 
F. C. Ebert... '.- 
.do. 



D. A. McClung 

McGlashanand Ebert. 

F.C.Ebert .... 

.--.do 

D. A. McClung 

....do 

....do 

....do 

F. C. Ebert 



D. A. McClung.. 

....do 

F. C. Ebert 

D. A. McClung.. 

F.C.Ebert 

D. A. McClung.. 



Feet. 
1.06 
1.05 
1.06 
1.11 
1.13 
1.06 
1.10 
1.09 
1.10 
1.13 
1.28 
1.24 
1.20 



1.25 
1.43 
1.16 
1.20 
1.85 
1.28 
1.19 
1.41 
1.30 
1.28 
1.23 
1.30 
1.05 

.99 
1.39 
1.22 

.99 
1.12 
1.20 
1.23 



Sec.-fi. 
6.5 
6.0 



42 
31 



138 
297 

48 

48 
1,610 
540 
134 
133 

88 

58 

58 

74 

83 

65 
129 

31 
1.7 

12 

14 

16 



15 
40 
27 
15 
13 
2.0 



Note.— Datum of gage raised 0.9 foot, August 9, 1916. 
Daily gage height, in feet, of San Luis Rey River, near Bonsall, Calif ., for 1916-1918. 



Day. 


July. 


Aug. 


Sept. 


Day. 


July. 


Aug. 


Sept. 


Day. 


July. 


Aug. 


Sept. 


1916. 
1 




1.94 


L04 
1.03 
L02 
L02 
LOS 

L06 
1.06 
1.05 
1.06 
1.11 


1916. 
11 






L13 
1.06 
LIO 
1.09 
LIO 

1.13 
1.10 
1.14 
1.12 
1.14 


1916. 
21 




1.14 
1.12 
1.15 
1.28 
L15 

1.18 
1.13 
1.08 
1.07 
L05 
1.04 


1 12 


2 




12 





1.09 
1.12 


22 




1 12 


3 




L94 
1.95 
L97 

L98 
L99 
L98 
L07 
1.00 


13 




23 




1 10 


4 




14 




24 




1 14 


5 




15 




L12 

1.11 
1.10 
1.12 
1.11 
1.14 


25 .. 




1 14 


6 




16 




26 


2.00 
2.00 
L99 
L97 
1.99 
2.00 


1 12 


7 




17 




27 


1.10 


8 




18 




2S 

29 


1 13 


9 




19 




1.11 


10 




20 




30 


1.13 










31 











Note.— Datrun of gage raised 0.9 foot August 9, 1916. 



198 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORIsriA. 

Daily gage height, in feet, of San Luis Rey River near Bonsall, Calif, for 1916-1918 — ■ 

Continued. 



Apr. 



Maj\ 



1.30 
1.21 
1.14 

1.30 
1.25 
1.18 



1.12 
1.16 
1.13 
1.20 
1.18 

1.24 
1.23 
1.21 
1.20 
1.23 

1.20 
1.20 
1.19 
1.16 
1.21 

1.19 
1.14 
1.17 
1.20 
1.21 
1.20 



1.00 
1.00 
1.00 
.98 
1.00 
1.01 



1.20 
1.21 
1.20 
1.23 
1.34 

1.28 
1.25 
1.25 
1.22 
1.26 

1.27 

1.23 
1.26 



1.22 
1.16 
1.20 
1.23 
1.21 

1.23 
1.29 
1.16 
1.23 
1.19 

1.18 
1.11 
1.01 
1.02 
1.07 



1.00 
1.01 
1.00 
1.01 
1.00 

1.20 
1.13 
1.12 



1.07 
1.10 
1.09 
1.12 
1.11 

1.14 
1.10 
1,10 
1.16 



1.13 
1.20 
1.20 

1.18 
1.20 
1 21 
1.22 
1.20 



1.12 
1.17 
1.12 
1.19 
1.15 

1.12 
1.15 
1.19 
1.11 
1.00 

1.24 
1.22 
1.16 
1.22 
1.18 

1.19 
1.15 
1.10 
1.20 
1.15 

1.16 
1.20 
1.23 
1.19 
1.58 

1.00 
1.07 
1.04 
1.10 
1,12 
1.05 



1.20 
1.20 
1,21 
1.20 
1.18 

1.19 
1.20 
1.20 
1.16 
1.17 

1.18 
1.19 
1.23 
1.26 
1.28 

1.28 
1.27 
1.25 
1.25 
1.23 

1.22 
1.24 
1.22 
1.22 
1,21 

1.25 
1.26 
1.22 
1.23 
1.22 
1.23 



1,07 
1,00 
1.25 
1.23 
1.13 

1.00 
1.18 
1.00 

1.00 

1.11 

1.00 
1.01 
1.03 
1.23 
1,07 

1.43 
1.30 
1,21 
1.53 
1.27 

1,50 
1,33 
1,40 
1.22 
1,20 

1.24 
1.17 
1.15 
1.25 
1,20 
1,27 



1.23 
1.23 
.96 



1.19 
1.11 
1.04 
1,25 
1.16 

1,23 
1,18 
1.19 
1.17 
1.20 

1.20 
1.18 
1.28 
1.20 
1.15 

1.20 
1.43 
1.60 
1.50 
1.50 



1.55 
2.02 
1.35 
1.30 

1.39 
1,24 
1.11 



1.10 
1.40 
1.35 
1.25 
1.19 

1.21 
1.23 
1.22 
1.24 
1.43 

1.42 
1.39 
1.38 
1.30 
1.40 

1.29 
1.30 
1.33 
1.44 

1.40 

1.36 
1.28 
1.39 
1.33 
1.35 

1.30 
1.39 
1.40 
1.23 
1.31 
1.20 



.64 
.58 
.56 
.64 
.60 

.70 
.92 
1.52 
1.00 



2.00 
2.77 
1.75 
1.23 
1.10 



.74 
1,32 



1.25 
1.23 
1.22 
1.24 
1.21 

1.23 
1.20 
1.15 
1.37 
1.40 

1.39 
1.23 
1.28 
1.30 
1,25 



1.20 
1.16 
1.18 

1.10 
1.20 
.86 
1.05 
1.10 

1.20 
1.02 
1.27 
1.03 
1.10 



1.17 
1,11 
1,10 
1.04 
1.02 

1.06 
1.10 
1.11 
1.31 
1.31 

1.27 
1.30 
1.25 
1.20 
1.09 

1.10 
1.15 
1.20 
1.27 
1.10 

1.00 
1.06 
.98 
1.25 
1.38 

1.45 
1.40 
1.33 
1.39 
1.41 
1.39 



1.34 
1,30 
1.30 
1.25 

1,28 

1.30 
1.28 
1.27 
1.20 
1.22 

1.25 
1.26 
1.21 
1.22 
1.15 

1.12 
1.10 
1.15 
1.10 
1.05 

1.00 
1.00 
1.00 
1.00 
1.00 

1.00 
1.00 
1.00 
1.01 
1.00 



.54 
.56 
.54 
.54 
.52 

,50 
.46 
.40 



NOTE.—Stream dry July 29 to Sept. 30 and Oct. 1-14, 1917; and July 28 to Sept. 30, 1918. 



SAN LUIS KEY RIVER BASIN. 



199 



SAN LUIS BEY RIVER NEAR OOEANSIDE, CALIF. 

Location.— In SW. I SW. I sec. 13, T. 11 S., R. 5 W., opposite Oceanside pumping 
plant, just above ford, about 1^ miles above mouth of river, and 2 miles north- 
east of Oceanside, San Diego County. 

Drainage area. — 563 square miles (measured on topographic maps). 

Elevation. — About sea level. 

Records available. — April 17, 1912, to September 30, 1914 (discharge measurementa 
only for 1915). 

Gage. — Staff in three sections on right bank just above ford. 

Discharge measurements. — Made from, concrete highway bridge three-fourths of 
a mile below gage or by wading near gage. 

Channel and control. — Sand; somewhat shifting. 

Extremes of discharge. — 1912-1915: Maximun stage recorded, 4.9 feet February 
11, 1915 (discharge about 7,000 second-feet); no flow for several months each year. 

Diversions. — See San Luis Rev River at Bonsall, page 193. In addition, several 
small canals divert water for irrigation in Mission Valley, above the station. Water 
is also pumped from wells at various points in the valley. Record at this station 
shows quantity of water wasted into Pacific Ocean. 

Regulation. — None . 

Accuracy. — Stage-dischai'ge relation not permanent. Rating curves fairly well 
defined except for flood stages. Gage read, usually to half-tenths, twice daily. 
Daily discharge ascertained by applying mean daily gage height to rating tables, 
by shifting-control method, or for periods when change in stage v/as slight by 
interpolation between discharge measurements. Records fair. 

Discharge measurements of San Luis Rey River near Oceanside, Calif ., for 1912-1915. 



Date. 


Made by — 


heijht. 


Dis- 
charge. 


Date. 


Made by— 


Ga?e 
height. 


Dis- 
charge. 


1912. 
Apr. 17 
May 3 


F.C.Ebert 


Feet. 
2.55 
2.24 
2.28 
2.06 

2.05 
1.94 
2.09 
2.32 
2.23 
2.01 
1.97 
2.14 
1.80 

3.62 
3.06 
2.27 
1.42 
1.62 
1.16 


Sec.-ft. 

215 

33 

46 

9.1 

7.2 

2.2 
13 
104 
67 
20 
10 
31 
1.4 

1,740 

734 
155 

38 

79 

17 


1914. 
Mar. 27 
Apr. 18 

25 
May 9 

14 
Dec. 14 

1915. 
Jan. 23 
25 
30 

Feb. 5 
14 
27 

Mar. 11 
26 

Apr. 7 
18 
27 

May 6 
16 

July 6 


F. C, Ebert 


Feet 
L30 
L04 
1.46 
L13 
.88 

.79 
.82 


See.-fL 
29 


do 

E.W. Case 


do.. 

do 

do 

do 

do 

F. C. Ebert 


4.6 
46 


21 


F.C.Ebert 


13 


1913. 
Jan. 17 


F. C. Ebert 


1.6 
.0 


18 
Feb. 22 


do 

do 

do 

W. S. Post 


2 


23 

25 


do 

C. E. Hiekok . 


1.8 
1 470 


Mar. 12 


"R'. C. Ebert 


K. B. Slepuy 


2.2 
2.57 
2.17 
2.30 
2.06 
2.08 
1.9 
2.23 
3.3 
2.43 


^325 


20 


do 

W. S. Post . . . 


F.C.Ebert 


722 


24 


.---do 

do 

do 

do 

D.L.Lee 


296 


Apr. 8 


F.C.Ebert 


345 


1914. 
Jan. 27 


C.E.Hickok 


120 

88 
56 


28 


do 

F.C.Ebert 


W.J.lsbell 


150 


30 


V/. D. McFadden 

F.C.Ebert 


1 250 


Feb. 4 


do 

do 

do 


'222 


Mar. 9 
23 


do 


.0 



NOTEr 

original 



-Measurements Jan. 27, 1914, to Jan. 25, 1915, refeiTed to temporary gage on left bank opposite 
age and at same datum. 



200 SURFACE V/ATER OF PACIFIC SLOPE, SOUTPIEPtN CALIFORlsriA. 

Daily discharge, in second-feet, of San Luis Rey River near Oceanside, Calif , for 1912-1914. 



Day. 


Apr. 


May. 


Day. 


Apr. 


May. 


Day. 


Apr. 


May. 


1912. 
1 




47 
39 
31 
24 
18 

18 
17 
42 
158 
128 


1912. 
11 




58 
42 
31 
31 
24 

20 
15 
12 
17 
13 


21 


1912. 




208 
128 
107 
91 
81 
02 
72 
58 
58 
53 


12 


2 




12... 




22 


8 4 


2 




13...::::.:.:.::: 




23.. 


6 


4 




14 




24 


5.2 


5 




15.. 




25 


2 


6 




16 




26 


2 


7 




17 


189 
208 
218 
208 


27 


2 


8 




18 


28 


2 






19 


29 


2 


10 




20 


30 


1 








31 


.0 










Day. 


Jan. 


Feb. 


Mar. 


Apr. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


1912-13. 
1 






74 
40 
27 
27 
14 

14 
10 
10 
6 
6 

6 

27 
27 
27 
27 
27 
14 
14 
6 

14 
20 
27 
27 
40 

40 
27 
14 
14 
.6 
6 


6 
10 

6 
10 
10 


4 
1 

.8 
.8 

.0 

.5 


1913-14. 
1 . 




130 
45 
43 
41 
41 

41 
35 
19 
29 
29 
29 
29 
29 
29 
15 
29 
24 
29 
408 
1,310 

2,650 

3,260 

1,410 

295 

180 

165 
137 
124 


102 
151 
124 
102 
102 
82 
72 
72 
72 
55 
72 
55 
55 
41 
41 

41 
29 
29 
29 
19 

19 
19 
19 
11 
11 

29 
29 
41 
72 
102 
180 


72 
55 
41 
29 
41 

41 
48 
41 
29 
35 

35 
29 
29 
29 
19 
15 
11 
8 
4 
2 
2 
8 
41 
55 
55 
41 
35 
29 
29 
29 


41 


2 






2 




41 


3 






3 




41 


4 






4 




35 


5 






5.. 




29 


6 






6 




29 


7 






7 




19 


8 






8. 




19 


9 






9 




11 


10 






10 




5 


11 






11 




5 


12 






12... ,. 




2 


13 






13 




5 


14 






14 




5 


15 






15 




2 


16 






16 . 




1 


17 


7 
2 


•■» 


17..... 






18 


18.... 






19 


19 






20 






20..... 






21 






21 






22 




18 
198 
95 
74 

290 
125 
125 


22 






23 




23 






24 




24 






25 




25 






26 




26 






27 




27 


1,460 
610 
230 
150 
140 




28 




28 




29 




29 




30 






30 




31 






31 





















Note.— Daily discharge determined as follows, 1912: Apr. 17 to May 28, from a rating curve well defined 
above 8 second-feet; May 29-30, interpolated. 

1913: Feb. 23 to Apr. 12, from fairly well defined rating curve. 

1914: Jan. 27 to 30 and Feb. 4 to May 16, from fairly well defined ratiog curve; Jan. 31 to Feb. 3, by 
sblfting-control method. Stream dry on all days when discharge is omitted. 

Monthly discharge of San Luis Rey River near Oceanside, Calif., for 1912-1914- 



1912. 
Aprill7-30.. 
May 

1912-13. 

January 

February 

March 

April 

The year. 



Discharge in second-feet. 



Maxi- Mini- 
mum, mum. 



218 
156 



7 
290 
74 
10 



.3 
33.0 
21.0 
1.85 



4.50 3,250 



Run-off 
(total in 
acre- 
feet.) 



3,440 
1,640 



18 

1,830 

1,290 

110 



1913-14. 

January 

February 

March 

April 

May 

The year. 



Discharge in second-feet. 



Maxi- Mini- 
mum, mmn. 



1,460 

3,260 

180 

72 

41 



3,260 



83.5 
379 
60.5 
31.2 
9.4 



44.6 



Rim-off 
(total in 
acre- 
feet.) 



5,130 

21,000 
3,720 



Note,— No flow in months for which record is not given. 



SAN LUIS KEY EIVEE BASIN. 



201 



SAN LTJIS BEY RIVER AT OCEANSIDE, CALIF. 

Location.— In SE. i NE. I sec. 22, T. 11 S., R. 5 W., at highway brid<?e about half 
a mile above mouth, at Oceanside, San Diego County. 

Drainage area. — 565 square miles (measured on topographic maps). 

Elevation. — Sea level. 

Records available. — January 16-31, 1916 (discharge measurements, 1916-1917). 

Discharge measurements. — Made from concrete highway bridge until its failure 
at 9.30 p. m. January 27, 1916; measurements Januar^^ 28 to February 1, 1916, 
were made from a boat at nearly the same site. Later measurements were made 
from temporary highway bridge or by wading. 

Channel and control, — Sand; shifting. The discharge measurement made at 
6 p. m. January 27, 1916, indicated that the scour in the main channel amounted 
to about 10 feet, as compared with the cross section measured May 25, 1916, 

Accuracy. — Stage-discharge relation not permanent. Mean daily discharge January 
16 to 31, 1916, computed from a hydrograph based on discharge measurements 
and compared with record of flow at station on San Luis Rey River near Mesa 
Grande. Records fair. 

Discharge measurements of San Luis Rey River at Oceanside, Calif., for 1916-1917. 



Date. 


Made by- 


Gage 
height. 


Dis- 
charge, 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge, 


1916. 
Jan. 16 


McFadden and Ireland 
Ireland and Strout 

do 

do 

do 

do 

do 

do 

C B. Ireland 


Feet. 
2.45 
6.0 
4.0 
4.0 
3.0 
2.5 
2.0 
1.8 
1.4 
1.4 
1.3 
1.3 
1.3 
1.3 
1.4 
1.5 
1.6 


Scc.-lt. 

216 

a 27, 100 

a 16, 200 

ft 20, 800 

a 9. 990 

a 9, 080 

a 3, 690 

2,000 

1,650 

1,480 

1,460 

1,240 

1,150 

1,030 

1,310 

1,580 

1,800 

a 9, 640 

a 55, 400 

21,900 

a 2, 190 


1916. 
Jan. 31 
Feb. 1 

24 
Mar. 29 
Apr. 20 
May 7 
9 
June 15 
July 10 

21 
Nov. 15 

25 

1917. 
Jan. 20 
Feb. 11 

25 
Mar. 19 
Apr. 11 
June 9 

30 


G. S. Strout 


Feet. 


Sec.-ft. 

a 1,260 
982 
463 


17 

18 


do 

F. C. Ebert 


"'"2." 83" 
2.99 
2.93 
2.95 
2.90 
2.60 


18 
19 


W. S. Post 

F,C. Ebert 


221 
159 


19 
20 
21 
22 


do 

do 

Ebert and Ellis 

W S Post 


54 
52 
11 
4.7 


22 
23 


do 

do 

do.... 

do 

do 

do 

do 

do 

Ireland and Strout 


do 

W, J. Isbeil 


8,55 
8.75 
8.81 

9,22 
8,85 
9,03 
9.05 
9.19 
8.92 


9.1 

24 


23 
24 
24 
25 
25 
26 
27 


do 

McClungandCarr.... 

do 

do 

D. A.McClung 

McClung and Holly . . 

D, A.McClung 

do 


33 

474 
45 

650 
78 


27 
28 


do 

Strout and Bowan 




107 
23 


30 


G. S. Strout 




.0 















a Float measurement. 
Daily discharge, in second-feet, of Sail Luis Rey River at Oceanside, Calif. , for January, 1916, 



Day, 


Maxi- 
mum. 


Mini- 
mum. 


Mean, 


Day. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


1 


6,500 
40,000 
21, 500 
13,500 

5,700 

2,400 
1,700 
1,480 
1,200 
1,600 


216 
10,000 
13,500 
5,700 
2,400 

1,700 
1,480 
1,200 
1,030 
1,100 


2,180 
20,800 
18, 100 
9,640 
3,730 

1,980 
1,590 
1,350 
1,110 
1,400 


11 . 


3,800 
95,600 
8.5,000 
7,700 
3,700 
1,800 


1,600 
3,800 
7,700 
3,700 
1,800 
1,170 


2,230 
33,800 
28,200 
5,330 
2 650 


2 


12 


3 


13 


4 


14 


5 


15 




16 


1^430 


6 




7 




8 




9 




10 









Total run-off for period; 

Acre-feet 

Depth in inches on drainage area. . 



269,00 
8.92 



202 SURFACE WATEPw OF PACIFIC SLOPE, SOUTHERN CALIFORE"IA. 
CAITADA VERDE CREEK 2TEAII WARNER SPRISfGS, CALIF. 

Location. — -In San Jose del Valle grant, at mouth of canyon, IJ miles southeast of 

Warner Springs, San Diego County. 
Drainage area. — 2.8 square miles (measured on topographic maps). 
Elevation. — About 3,050 feet above sea level. 

Records available. — 1913 to August 29, 1915 (discharge measurements only). 
Gage.— Vertical staff on right bank at mouth of canyon. 
Discharge measurements. — ^Made by wading near gage, 
Channel and control. — Sand; shifting. 
Diversions. — None. 
Regulation. — None. 

Discharge measurements of Canada Verde Creeh near Warner Springs, Calif., for 1913-1915. 



Rate. 


Made by— 


heigfft. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


1913. 




Feet. 


Sec.-ft. 


1914. 




Feet. 


Sec.-fi. 


Feb. 5 


W. J. Isbell 


1.03 


0.5 


Mar. 24 


W.J. Isbell 


1.67 


.8 


Mar. 1 


.....do 




1.1 


30 


do 








1.66 


.8 


Apr. 5 


do 


""'.'95' 


1.3 


Apr. 9 


do 








1.63 


.7 


May 18 


do. 


.82 


.56 


May 4 


do 








1.65 


.7 


June 14 


F. C. Ebert 


.75 


.25 


9 


do 








1.66 


.7 


July 21 


W.J. Isbell 


1.75 


.1 


22 


do 








1.57 


.4 


Aug. 22 


do 


1.46 


.02 


Jime 15 


do 








1.57 


.4 


Sept. 2 


do 


1.52 


.1 


July 11 


do 








1.61 


.3 


10 


do 


1.55 


.02 


Sept. 16 


do 








1.61 


.1 


25 


do. 




.02 


Oct. 16 


do 








1.66 


.2 


Oct. 7 


do 


"'i.'eo' 


.1 


Dec. 15 


do 








1.73 


.4 


17 


do 


1.60 


.1 










Nov. 7 


do 


1.63 


.2 


1915. 








18 


do 


1.64 


.2 


Jan. 1 


W.J. Isbell... 




1.70 


.4 


24 


do 


1.67 


.2 


Feb. 5 


do 








1.88 


1.4 


Dec. 13 


do 


1.76 


.4 


Apr. 3 
19 


do..... 

do 








1.64 
1.45 


1.7 
1.4 


1914. 








May 22 


do 








1.54 


4.6 


Jan. 9 


W.J. Isbell 


1.77 


.3 


June 24 


do..... 








1.03 


.1 


14 


.....do 


1.76 


.3 


July 22 


do 








1.15 


.7 


Feb. 4 


do 


1.76 


.8 


Aug. 5 


do 








.95 


.1 


Mar. 6 


do 


1.76 


1.0 


29 


do..... 








1.00 


.2 


19 


do 


1.65 


.5 











AGUA CALIENTE CREEK NEAR WARNER SPRINGS, CALIF, 

Location. — In San Jose del Valle grant, about 1 mile northwest of Warner Springs, 
San Diego County. 

Drainage area. — 19.2 square miles (measured on topographic maps). 

Elevation. — About 2,950 feet above sea level. 

Records available. — February 5, 1913, to November 10, 1915. (Discharge measure- 
ments only. ) 

Gage.— Vertical staff on left bank at mouth of canyon. The original gage was washed 
out March 6, 1914; new gage installed March 24, 1914^ at an independent datum. 

Discharge measurements. — Made by wading near g2i,ge. 

Channel and control, — Sand; shifting. 

Diversions. — None, 

Regulation. — None. 



SAN LUIS REY EIVER BASIK. 



203 



Discharge measurements of Agiia Caliente Creeh near Warner Springs, Calif., for 

1913-1915. 



Gage 
height. 



Dis- 
charge. 



Gage 
height. 



Dis- 
charge. 



1913. 
Feb. 11 

16 
Mar. 16 
Apr. 10 
May 18 

31 
June 10 

14 
July 15 

21 
Aug. 22 

25 
Sept. 2 

10 

25 
Oct. 7 



Feb. 

Mar. 



Apr. 15 



". J. Isbell 

..do.. 

..do.. 

..do.. 

..do.. 

..do.. 

..do.. 
F. C. Ebert 
W. J. Isbell 



...do-. 
...do.. 
...do.. 
...do.. 
...do.. 
...do.. 



W. J. Isbell 

.do.. 



..do.. 
..do.. 
..do.. 



1.21 
1. 18 
2.04 
1.94 
1.94 
1.95 
1.95 
.93 
.95 



.88 
1.10 

'".'so' 



Sce.-ft. 



.2 

5.7 
2.1 



.2 
2.2 



1.6 

1.2 



1914. 

May 9 

20 

July 11 

Oct .16 

1915. 

Jan, 1 
19 

Mar. 24 

Apr. 19 

May 7 
22 

July 1 
15 
22 
29 

Aug. 5 
12 

SeDt. 3 



W.J. Isbell.. 

....do 

....do 

....do 



W.J. Isbell.. 
do 



..do. 
..do. 
..do. 
..do. 
..do. 
..do. 
..do. 
..do. 
..do. 
.-do. 
..do. 
..do. 
..do. 
..do. 



FeeL 
.41 
.38 



1.50 
1.29 
1.23 
1.23 
1.25 
1.23 
1.23 
1.21 
1.22 
1.27 
1.27 
1.28 
1.29 



Sec.-fL 

i.l 
i.i 



.4 
.3 



.5 
.5 
.5 



WEST FORK OF SAN LTHS REY RIVER i NEAR WARNER SPRINGS, CALIF. 

Location.— In SW. 4 sec. 15, T. 10 S., R. 2 W., in San Jose del Valle grant, 2f miles 
above junction with San Luis Rey River, and 7| miles northwest of Warner 
Springs, San Diego County. 

Drainage area. — 25.6 square miles (measured on topographic maps). 

Elevation.— About 2,800 feet above sea level. 

Records available. January 25, 1913, to November 18, 1915. 

Gage. — Sanders & Rising water-stage recorder on left bank near mouth of canyon, 
with staff in two sections fastened to tree on same bank about 40 feet upstream. 

Discharge measurements. — ^Made by wading near gage. 

Channel and control. — Sand; shifting. A concrete control has been built across 
channel just below gage, but accumulation of sand causes slight changes in stage- 
discharge relation. 

Extremes of discharge. — 1913-1915: Maximum stage recorded, 4.37 feet February 
19, 1914 (discharge, 580 second-feet) ; no flow for several months each year. 

Diversions . — None. 

Regulations. — None. 

Accuracy.— Stage-discharge relation not permanent except for short periods. Mean 
daily gage height determined by inspecting recorder graph. Discharge computed 
by interpolation between measurements when changes in stage were slight, from 
rating curves covering short periods, and by shifting-control method. For high 
stages, when gage-height record was missing, discharge was estimated from 
record of flow of station on San Luis Rey River near Mesa Grande. Records fair. 



1 iLuown locally as Rincon Creek. 



204 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Discharge measurements of West Forh of San Luis Rey River near Warner Springs, Calif., 

for 1913-1916. 



1913. 

Jan. 25 

Feb. 4 
11 
19 

Mar. 2 
16 
26 

Apr. 10 
17 
23 
23 

Mav 1 
10 
18 
23 
31 

June 6 
12 
14 
18 
25 

July 1 
9 

Sept. 18 
' 29 

Oct. 14 
20 

Nov. 12 
14 
26 

Dec. 23 

1914. 
Jan. 1 
8 
14 
22 
29 
Feb. 3 



18 
20 
22 
23 
25 

Mar. 4 
11 
18 
25 
30 

Apr. 1 



Made by— 



V. J. IsbelL 

...do 

...do. 



C. Ebert. 
, J. isbell. 

..do 

-do 

.do 

.do...... 

.do 

.do 

do. 



C. Ebert. 
.J. Isbell. 

..do 

..do 

..do 

..do. 



C. Ebert. 
. J. Isbell . 

..do 

..do 

W. Day.. 
• J. Isbell. 

..do 

..do 

..do 

..do 

..do 

..do 

..do 



W.J. Isbell.. 

do 

do 

do 

do 

do 

do 

do 

do 

do 

.....do 

do 

Jas. Ridder . . 
W.J. Isbell.. 

do 

do 

do 

do 

J. E. Ridder. 
W.J. Isbell.. 



Gage 
height. 



Feet. 
2.27 
2.23 
2.37 
2.29 
2.46 
2.49 
2.54 
2.42 
2.38 
2.40 
2.48 
2.38 
2.33 
2.25 
2.23 
2.20 
2.18 
2.17 
2.10 
2.12 
2.12 
2.08 
2.08 



2.12 
2.06 
2.28 



Dis- 
charge. 



Sec.-ft. 
0.9 
.9 
1.9 
1.3 

11 

11 

16 
5.7 
4.6 
4.1 

10 
3 

2.3 
1.4 
1.6 
1.1 



.02 
.03 
.0 
.0 
.0 
.0 
.0 

!09 
2.4 



2.9 

36 

13 
8.6 
5.7 
5.8 
123 



21 

12 



1914. 

Apr. 15 
22 
29 

May 6 
11 
13 
20 
27 

June 3 
18 

Dec. 12 

1915. 
Jan. 8 



18 
25 

Apr. 8 
16 
23 
7 

10 
13 
20 
27 

June 3 
10 
24 

July 1 
8 
15 
22 
29 

Aug. 5 
12 
19 
26 

Sept. 9 
16 

Nov. 11 
18 

1916. 
Feb. 11 
18 

Mar. 9 
24 



May 



30 



JIade by- 



W. J. Isbell. 

do 

do...... 

.do 



F.C. Ebert. 
W.J. Isbell. 

do 

do 

do 

do 

do 



W.J. Isbell.. 

do 

....do 

....do 

....do 

do 

do 

do 

do 

do 

....do 

do 

do , 

do 

do...... 

do 

do 

do 

do...... 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do , 

....do 

....do....... 

do 

do 



W. 



J. Isbell. 

do 

,do 

,do 

do 



Gage 
height. 



Feet. 
2.42 
2.52 
2.51 
2.44 
2.40 
2.39 
2.34 
2.33 
2.27 
2.15 
2.13 

2.18 
2.46 
3.07 
2.99 
3.31 
2.98 
3.10 
3.03 
2.83 
2.73 
2.67 
2.54 
2.97 
3.38 
3.24 
3.06 
2.94 
2.80 
2.70 
2.63 
2.66 
2.51 
2.53 
2.50 
2.45 
2.41 
2.35 
2.31 
2.29 
2.20 
2.20 
2.28 
2.34 
2.32 

2.20 
2.40 
2.55 
2.70 
2.80 



Dis- 
charge. 



Sec.-ft. 
9.6 

17 

14 

11 
7 

7.2 
4.8 
4.3 
2.8 
1.3 



.5 
5.6 



106 
50 
66 
60 
37 
27 
19 
17 
62 
159 
120 
79 
52 
31 
22 
20 
8.8 
5.7 
4.7 
2.4 
2.1 
1.5 
1.0 
.6 
.4 
.06 
.05 
.2 
.9 



103 
76 
79 



Daily discharge, in secondfeet, of West Forh of San Luis Rey River near Warner Springs, 
Calif., for 1913-1915. 



Day. 


Mar. 


Apr. 


May. 


June. 


July. 


Day. 


Mar. 


Apr. 


May. 


June. 


July. 


1913. 
1 




12 
12 
12 

7.5 
7.5 

7.5 
7.5 
7.5 
5 

5 

5 
5 
5 


3 
3 
3 
3 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 

2.5 

2 

2 

2 


1 
1 
1 

.5 
1 

.5 
.2 
.2 
.5 

.5 

.5 
.5 
.5 
.2 
.2 


0.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.1 
.1 


1913. 
16 




5 

5 
5 
5 

5 
5 

7 

6.5 

6 

5.5 

5 

4.5 

4 

3.5 


2 

1.5 

1.5 

1.5 

1.5 

1.5 

1.5 

1.5 

1.5 

1 

1 
1 
1 
1 

1 


0.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 
.2 
.2 
.2 
.2 
.2 


0.2 


2 




17 




.2 


3 




18 




.2 


4 




19 




.1 


5 




20 




.1 






21 




.1 


^ 




22 










23 








24 














25 
















26 


17 
17 
12 
12 
12 
12 




11 


27 




12 




28 




13 




29 




14 




30 




15 




31 















SAE" LUIS REY RIVER BASIS'. 



205 



Daily discharge, in second-feet, of West Fork of San Luis Rey River near Warner Springs, 
Calif, for 1913-1915— Gontmued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan, 


Feb. 


Mai. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1913-14. 
1 ... 






0.1 

.1 

.0 
.0 
.0 
.0 

.0 
.0 








2.3 

7.5 
7.5 
1.5 
.1 
.5 

.5 
.1 
.1 
.1 
.2 
1.5 

.1 
.2 
.2 

.2 
.2 

.2 
.2 
.2 
.2 
.5 

1.0 
.5 
.2 
.2 
.1 

.2 
.5 
.5 
.5 
.5 

.5 
.5 
2.5 
1.0 

.8 

.8 
1.0 

.8 
.8 
.8 
.3 


1.0 
.5 
.5 
.5 
.5 

.5 
.5 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
1.5 

5 

5 

7.5 
12 
7.5 

5 

3.5 
3.5 
3.5 

7.5 

192 
220 

38 

36 

35 

30 

.8 

;l 
1.1 

1.0 

.8 
.8 
.8 
1.0 

.8 
1.0 

.8 
.8 
.8 

.3 

.8 
.8 
.8 
.8 

1.0 
8.0 
5.5 
5.5 
20 

8.5 
5.5 
43 
365 
200 
68 


28 

27 

13 
8.5 
9.0 

S.5 
10 
14 
15 
20 

5.5 
5 5 
5.5 
5.5 
5.5 

5.5 
5.5 
20 

241 

306 

403 
172 
101 

61 

55 

48- 
43 
38 

68 
2G0 
125 

55 

50 

38 

34 

30 
105 
365 

385 
170 
106 

80 

70 

50 
50 
52 
46 
46 

46 
46 
46 
46 
82 

73 
73 
66 


32 
23 
23 
23 
23 

19 
19 
19 
15 
15 

15 
12 
12 
12 
13 

13 
13 
10 
10 
10 

9.0 

9.5 

9 

9 

9 

9 
13 
42 
22 
33 
33 

100 
125 

90 

66 

66 

66 
63 
63 
63 
63 

63 
63 
63 
63 
57 

57 
57 
39 
39 
38 

34 
29 
29 
29 
29 

24 
24 
24 
33 
33 
24 


23 
19 
18 
14 
18 

17 
13 
12 
10 
10 

10 
10 
11 
11 
9.0 

8.5 
8.5 
8.5 
8.5 
8.5 

8.5 
19 
19 
23 
18 

14 
14 
14 
14 
17 

23 
23 
23 
22 
19 

19 
19 
19 
19 
19 

18 
18 
18 
17 
17 

17 
14 
14 
14 
14 

28 
80 
64 
93 
88 

72 
73 
74 
68 
122 


14 
18 
15 
15 
11 

11 
11 

8 

7.5 

7.5 

7 
7 
7 
7 

7 
7 
7 
5 
5 

5 

3.5 

3.5 

3.5 

3.5 

3.5 
4.5 
4.5 
3.5 
3.5 
3.5 

123 
103 
95 
104 

260 

155 
182 
215 • 
155 
145 

155 
105 

95 

90 

85 

130 
150 

85 

55 

45 
45 

tl 

39 

38 
33 
36 
36 
36 
36 


3.5 
2.5 
2.5 
2.5 
2.5 

2.5 

3.5 

3.5 
14 

8 

2.5 

1.3 

1.3 

1.3 

1 3 


0.8 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.1 
.1 

.1 






2 










3 










4 










5 










6 










7 










8 . - 










9 










10 










11 








12 




0.1 
.3 
.5 
.5 

.4 
.4 
.4 
.3 
.3 

.3 
.2 
.2 
.2 
.1 

.1 
.1 
.1 
.1 
.1 






13 








14 . . .. 








15 








16 




1 




17 




1.3 
1.3 
1.3 
1.3 

1.3 

1.3 

.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 


1 




IS . 










19 










20 










21 










22 










23 










24 










25 










26 










27 











28 










29 










30 










31 










1914-15. 
1 






36 
36 
22 
22 
22 

20 
20 
20 
20 
20 

19 
18 
17 
17 
16 

16 
15 
14 
13 
12 

11 

10 
9 
9 

8.5 

8 

7.5 

7 

6.5 

6 


.5.5 

5.5 

5.5 

5 

5 

4.5 

4.5 

4.5 

4 

4 

3.5 

3.5 

3 

3 

2.5 

2.5 
2.5 
2.5 
2.5 
2 

2 
2 
2 
2 
2 

2 

1.5 

1.5 

1.5 

1.5 

1.5 


1.5 

1 

1 

1 

1 

.9 
.9 

.8 
.8 
.7 

.7 
.6 
.6 
.6 
.5 

.5 
.4 
.4 
.4 

.4 

.3 
.3 
.2 
.2 
.1 

.1 
.6 
.2 
.1 
.1 
.1 


0.1 


2 








3 . .. 








4 








5 








6 








7 








8 








9 








10 








11 








12 








13 






.2 


14 






.2 


15 






.2 


16 






.2 


17 






.2 


18 






.2 


19 






.2 


20 






.2 


21 






.2 


22 






.2 


23 






.2 


24 






.2 


25 






.2 


26 






.2 


27 






.2 


28 






.2 


29 






.2 


30 .... 






.2 


31 

















206 SUKFACE WATER OF PACIFIC SLOPE, SOUTHERlsr CALIFORNIA. 



Daily discharge, in second-feet, of West Fork of San Luis Rey River near Warner Springs, 
Calif. , for 1913-1915— Continued. 



Day. 


Oct. 


Nov. 


Day, 


Oct. 


Nov. 


Day. 


Oct. 


Nov. 


1915. 
1 


0.05 
.03 

.02 
.01 
.01 

.01 
.01 
.01 
.02 
.02 


0.02 
.02 
.02 
.02 
.02 

.02 
.02 
.02 
.02 
.25 


11. 
12. 
13. 
14. 
15. 

16. 
17. 

18. 
19. 
20. 


1915. 


0.03 
.04 
.06 
.06 
.05 

.04 
.03 
.03 
.03 
.03 


0.9 
.9 
.9 
.9 

.75 

.75 
.6 
.6 
.6 


21. 
22. 
23. 

24. 
25. 

26. 

97 


1915. 


0.03 
.03 
.02 
.02 
.02 

.02 

.01 
.01 
.01 
.01 
.01 












3 - 








4 


















^' 








7 










s 




28. 
29. 
30. 
31. 

















10 

























Note. — Daily discharge determined as follows: 1913: Mar 26 to Apr. 22 and May 18 to July 21, from 
vv'-eli-defmed rating curve; Apr. 23 to May 17, by shifting-control method. 

1913-14: Nov. 12 to Dec. 10, 1913, by interpolation between measurements; Dec. 11, 1913, to Jan. 25, 1914, 
from previous rating curve; Jan. 26-28, no gage-height record, discharge estimated as 22 per cent of flow of 
San Luis Key Eiver near Mesa Grande. 

1914-15: Dec. 1, 1914, to Sept. 30, 1915, from rating curves covering short periods, by interpolation between 
measurements, and by shifting-controi method; Jan. 29 and 30, Feb. 2 and 3, 9-12 and 14-17, Mar. 1-3, 1915, 
no gage-height record; discharge estimated as 25 per cent of flow of San Luis Rey River near Mesa Grande; 
Jan. 29 to July 11, 1914, from rating curves covering short periods and shifting -control method. Stream 
dry on days for Avhich discharge is not given. 

Monthly discharge of West Fori of San Luis Rey River near Warner Springs, Calif., for 

1913-1915. 



Month. 


Discharge in second- 
feet. 


Run-ofT 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 


Run-oa 
(total in 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1913. 


17 
12 

3 

1 
.2 


12 
3.5 
1 
.2 



13.7 
6.18 
1.90 
.38 
.12 


16 
368 
117 

23 

7 


1914-15. 

December 

January 


2.5 

365 

385 

125 

122 

260 
36 
5.5 
1.5 
.2 


0.1 
.3 

30 
24 
14 
33 
6 

1.5 
.1 
.1 


0.52 
24.1 
95.1 
52.1 
37.5 
96.6 
15.9 

3.06 
.55 
.16 


32 




1,480 
5,280 


May 


February 

March 




3,200 

2,230 

6,940 

946 


July 


April 




Mav 


The period.. 


17 


0, 


3.18 


531 : 




July 


188 


1913-14. 

November 

December 

January 

February 

March 

^y':::::;:;:;::: 


.5 
7.5 
220 
403 
42 
23 
18 
14 
.8 





.2 
5.5 
9 

8.5 
3.5 

.8 



.16 
.89 
19.9 
60 
17.1 
13.6 
7.29 
2.46 
.08 


10 

55 

1, 220 

3,330 

1,050 

809 

448 

146 

5 


August 

September 

The year 

1915. 
October ..... 


34 
10 


385 





26.7 


19,300 


.06 
.9 


.01 
.02 


.025 
.37 




November 1-18 . . 




June 




July 








The year . . . . 


403 





9.78 


7,070 





Note.— No flow August to October, 1913 and August to November, 1914. 

MATAGUAL CREEK NEAR WARNER SPRINGS, CALIF. 

Location.— In SE. I sec. 28, T. 11 S., R. 3 E.,in Valle de San Jose grant, near mouth 
of canyon, and about 5 miles southwest of Warner Springs, San Diego County. 

Drainage area. — 9.2 square miles (measured on topographic maps). 

Elevation.— About 2,900 feet above sea level. 

Eecords available.— November 16, 1912, to June 28, 1916. (Discharge measure- 
ments only for years 1912-13 and 1915-16.) 

Gage. — Depth of water is measured over a reference hub in pool above control near 
mouth of canyon. 

Discharge measurements. — Made by wading near gage. 



SAIST LUIS KEY EIVEE BASHS". 



207 



Channel and control. — Sand; shifting. A timber control has been constructed 
just below gage. 

Extremes op discharge.— 1912-1915: Maximum stage not known, record incom- 
plete; maximum mean daily discharge, February 21, 1914, 125 second-feet (esti- 
mated); minimum discharge, September, 1914, 0.2 second-feet (estimated). 

Diversions.' — None. 

Kegulation.— None. 

Accuracy.— Stage-discharge relation not permanent. Gage read to hundredths 
about once a week by hydrographer. Discharge for days for which no readings 
were reported interpolated between discharge measurements or estimated by com- 
parison with records of flow at stations on West Fork of San Luis Rey River and 
Carrizo Creek near Warner Springs. Records fair. 



Discharge measurements of Matagual Creelc near Warner 



Calif., for 1912-1916. 



Date. 


Made by— 


height. 


Dis- 
charge. 


Date. 


Made by- ^«^|,e 


Dis- 
charge. 


1912. 




Feet. 


Sec.-ft. 


1914. 


Feet. 


Sec.-ft. 


Nov. 16 


W. J. Isbell 


0.27 
.31 


0.7 
.9 


Feb. 3 
9 


W. J. Isbell 


.34 
.30 


1.4 


Dec. 7 


do 


do 


1.2 


14 


do 


.31 


.8 


12 


do 


.30 


1.1 


18 


F.C.Ebert 


.30 
.29 
.29 


.9 
.9 

.8 


24 

26 

Mar. 7 


do 

Jas. Bidder.. 


.85 
75 
44 


7.4 


21 


W, J. Isbell 


4.9 


28 


do 


W.J.Isbell 


2.6 










13 


do ; 


40 


1.8 


1913. 








21 


do i 


.38 


1.6 


Jan. 3 


W.J. Isbell 


.29 


.9 


27 


do i 


.41 


1.6 


9 


do 


.31 


.9 


29 


do... : 


.42 


1.9 


14 


"!!"do!;;;;!!;!;;;!:;:: 


.31 


1.0 


Apr. 10 


do 


.38 


1.6 


19 


do 


.38 


1.2 


14 


do 


33 


1.2 


24 


do 


.33 


1.0 


May 2 


do... 


41 


2.0 


Feb. 1 


do 


.33 


1.0 


8 


do 


37 


1.5 


8 


do 

do 

F.C.Ebert 


.30 
.33 
.34 


1.1 
1.0 
1.1 


11 

27 

June 4 


F. C. Ebert 


33 

28 
29 


1.2 


14 


W.J.Isbell 


1.0 


19 


do 


1.0 


26 


W.J. Isbell 


.52 


2.6 


27 


do 


.20 


.4 


Mar. 13 


do 


.44 


1.6 


July 10 


do 


.15 


.2 


21 


do 


.41 


1.6 


25 


do 


17 


.3 


21 


do 


.42 


1.7 


Sept. 9 


do 


.18 


.3 


Apr. 2 


do 


.41 


1.7 


Oct. 16 


do 


18 


.3 


11 


do 


.35 


1.2 


Nov. 28 


do 


20 


.5 


29 


do 


.32 


1.3 


Dec. 14 


do 


23 


.8 


May 6 


do 


.32 


1.2 


21 


do 


26 


.9 


10 


F.C.Ebert 


.30 


1.0 










16 


W.J. Isbell 


.26 


.9 


1915. 








22 


do 

do , 


.25 
.23 


.8 
.8 


Jan. 8 

18 


W.J.Isbell 


23 

24 


,7 


30 


do 


.6 


June 5 


do 


.23 


.8 


Feb. 4 


do..... 


83 


10 


9 


do 


.25 


.8 


13 


do 


93 


16 


14 


do 


.25 


.8 


19 


do 


79 


8.7 


20 


do.... 


.20 


.4 


Mar. 3 


do 


83 


11 


27 


do 


.27 


.8 


13 


do 


80 


11 


July 2 


do 


.18 


.3 


26 


do 


64 


5.8 


18 


do 


.13 


.2 


Apr. 3 


do 


63 


4.5 


23 


do 


.16 


.2 


17 


do 


58 


3.8 


26 


do 


.18 


.4 


May 8 


do 


98 


20 


Aug. 21 


do :.: 

do 

do :: 


.17 
.15 

.18 


.2 
.2 
.4 


14 

June 28 
July 10 


R. W. Day... 


85 
56 
39 


10 


24 


W.J. Isbell 


3.4 


Sept. 1 


do [""".\. 


lis 


9 


do 


.17 


.3 


16 


do 


34 


1.3 


23 


do 


.16 


.3 


27 


do 


37 


1.7 


29 


do 


.17 


.4 


Aug. 9 


do 


36 


1.5 


Oct. 6 


do 


.19 


.4 


14 


do 


35 


1.3 


14 


do 


.16 


.3 


19 


do 


29 


.7 


21 


.....do 


.19 


.4 


27 


do 


38 


1.3 


29 


do :; 

do 


.19 
.22 


.4 
.6 


Sept. U 
29 


do 


32 
34 


.7 


Nov. 17 


!;;;.do. .;:;;::;;;::;::; 


!9 


25 


do 


.23 


.6 


Oct. 13 


do 


36 


x.o 


Dec. 2 


do 


.23 


.7 


25 


do 


36 


.8 


10 


do 


.24 


.8 


Nov. 13 


do 


40 


1.2 


17 


do 


.24 


.7 










29 


do 


.24 


.7 


1916. 










W.J. Isbell 


.24 


.6 


Feb. 9 

14 

Mar. 16 


W.J.Isbell. 




37 


1914, 
Jan. 9 


do 1 

do 1 


50* 
48 


29 
14 


24 


do 


.26 


.8 


28 


do ...!!."!!.'!!!."!! ! i 


60 


22 


30 


do 


.42 


2.8 


June 28 


do 




4.0 



208 SUKFACB WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



'; in second-feet, of Matagual Creeh near Warner Springs, Calif., for 1913- 
1915. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1913-14. 
1 


0.4 

.3 
.3 
.3 
.3 
.3 

.3 
.3 

.3 
.3 
.3 
.3 
.3 

.3 
.3 
.3 
.3 
.3 

.3 

i 

.3 
.3 

.3 
.3 
.2 
.2 
.2 

.2 

.8 
.3 
.3 
.3 

.3 
.5 

.7 
.8 
.8 
.8 


0.4 

.4 
.4 
.4 
.4 

.4 
.5 
.5 
.5 

.5 

.5 
.5 
.5 
.5 
,6 

i 
:l 

.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 

.7 

.8 
.8 
.6 
.6 
.5 

.4 
.3 
.3 
.3 
.3 

!5 

.5 
.5 
.5 

.5 
.5 


0.7 

.7 
.7 
.7 
.7 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 

.6 
.6 
.6 
.6 
.6 

.5 
.5 
.5 
1.0 
1.5 

1.0 

.8 
.8 
.8 
.8 

.8 

.8 
.9 
.9 
.9 

.9 
.9 
.9 
.9 
.5 

.4 
.5 
.8 
.8 
.6 
.4 


0.7 

.7 
.7 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
1.0 

2.0 
3.0 

4.5 
6.0 
3.0 

1.5 

.8 
.8 
.8 
3.0 

65 

80 

14 
2 

2.8 
2.5 

.6 

.6 
.6 
.6 
.6 
.6 

1 
2 
2 
2 
3 

.8 
.6 
7 

55 

35 

10 


2.0 
2.0 
1.4 
1.4 
1.3 

1.3 
1.3 
1.2 
1.2 
1.2 

1.1 
1.1 
1.1 
1.1 
1.1 

1.1 
1.1 
2.0 

65 
120 

125 
75 
25 

7.4 
6.0 

4.9 
4.5 
4.0 

10 
30 
20 
10 
5 

5 
4 
4 
4 
60 

75 
30 
16 
14 
12 

11 
10 
9 

8.5 
9 

9.5 
10 
10 
10 
10 

10 
10 

8 


3.5 
3.0 
2.6 

2.6 
2.6 

2.6 
2.6 
2.4 
2.2 

2.2 

2.0 
1.9 

1.8 
1.8 
1.8 

1.7 
1.7 
1.7 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.8 
1.9 
1.9 
1.9 

20 
15 

10 
9 

9 

8 
8 
7 

7 

6 
6 
6 
6 
6 

6 
6 
6 
5 
5 
5 


1.8 
1.8 
1.8 
1.8 
1.7 

1.7 
1.7 
1.7 
1.6 
1.6 

1.5 
1.4 
1.3 
1.2 
1.2 

1.2 
1.2 
1.5 
1.5 
1.5 

1.5 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

5 
4.5 

5 
5 
5 
5 
5 

5 
5 
5 
5 
10 


2.0 
2.0 
1.9 

1.8 
1.8 

1.7 
1.6 
1.5 
1.4 
1.3 

1.2 
1.2 
1.2 
1.3 
1.3 

1.3 
1.4 
1.4 
1.4 
1.5 

1.5 
1.5 
1.4 
1.3 
1.2 

1.1 
1.0 
1.0 
1.0 
1.0 
1.0 

15 
10 
12 
15 
25 

20 
20 
20 
15 
15 

15 
12 
11 
10 
10 

10 
10 
10 
10 
9 

9 
9 
9 
9 
9 

9 
9 

9 
9 

8 
8 


1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
.9 
.9 
.9 
.9 

.8 
.8 
.8 
.8 
.7 

.7 
.7 
.7 
.6 
.6 

.6 
.6 
.5 
.5 
.5 

8 
8 
8 
8 
7.5 

7.5 

7 

7 

6.5 

6.5 

6 
5 
4.5 

3.5 

3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 


0.3 
.3 
.3 
.3 
.3 

.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 

.2 
.2 
.3 
.3 
.3 

.3 
.3 
.3 
.3 
.3 

.3 
.3 
.3 
.3 
.3 
.3 

3 
3 
3 
3 
2.5 

2.5 

2.5 

2 

2 

2 

2 

2 

1.5 

1.5 

1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 

u 

1.5 
1.5 
1.5 
1.5 
1.5 
1.5 






2 






3 






4 






5 






6 .. . . 






7 






8 










3 


10 




11 






12 






13 






14 






15 






16 . 






17 






IS . .. 






19 






20 






21 






22 






23 






24 . . . 






25 






26 






27 






28 






29 






30 






31 






1914-15. 
1 


1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.0 
.9 

.8 
.7 
.7 

.8 
.9 

1 

1 

1 

1.5 
1.5 
1.5 
1.5 
1.5 
1.5 


1 


2 


1 


3 


1 


4.. 


.9 


5 . 


.9 


6 


.9 


s.'.'.'.y.'.zziv. 

9 - 

10 


.8 
.8 
.8 
,7 


11 


.7 


12 


.7 


13 


.7 


14 


.7 


15 


.7 


16 . 


.8 


17 


.8 


18... 


.8 


19 


.8 


20 


.8 


21 


.8 


22 


.8 


23 


.8 


24 


.8 


25 


.9 


26 


.9 


27 


.9 


28 


.9 


29 


.9 


30 


.9 


31 









Note.— For discharge during August and September, 1914, see table of monthly discharge. 



SAN LUIS KEY RIVER BASIN. 209 

Monthly discharge of Matagual Creek near Warner Springs, Calif., for 1913-1915. 



Month. 


Discharge in second- 
feet. 


Rim-ofE 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 


Run-oft 
(total in 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1913-14. 
October 






0.38 

.54 

.73 

6.50 

16.5 

2.02 

1.67 

1.39 

.72 

.26 

.30 

.20 


23 
32 
45 
400 
916 
124 
99 
85 
43 
16 
18 
12 


1914-15. 
October 


0.8 
.8 

1.5 
55 
75 
20 
10 
25 

8 

3 

1.5 

1 


0.2 
.3 
.4 
.6 

4 

5 

4 

8 

3.5 

1.5 
.7 
.7 


0.37 

.46 

.75 

4.25 

15.1 

8.94 

4.55 

12.0 

5.10 

1.87 

1.3 

.83 


23 








November 

December 

January 


27 








46 








261 








February 

March 


839 


March 






550 


Acril 






April 


271 


May 






May 


738 








June 


304 


July 






July 


115 








August 


80 


September 






September 

The year.... 


49 










The year 






2.50 


1,810 


75 


.2 


4.56 


3,300 









CARRIZO CREEK NEAR WARNER SPRIITGS, CALIF. 

Location. — Near southern boundary of Valle de San Jose grant, at mouth of canyon, 
2,000 feet above junction with Susanna Creek, and about 7^ miles southwest of 
Warner Springs, San Diego County. 

Drainage area. — 4.9 square miles (measured on topographic maps). 

Elevation. — ^About 2,800 feet above sea level. 

Records available. — January 24, 1913, to June 28, 1916. Discharge measurements 
only for years 1912-13 and 1915-16.) 

Gage. — Staff in two sections fastened to cottonwood tree on right bank at mouth of 
canyon. 

Discharge measurements. — Made by wading near gage. 

Channel and control. — Bed composed of sand; shifting. Timber control installed 
June 16, 1913. 

Extremes op discharge. — 1913-1915: Maximum stage not known, record incom- 
plete; maximum mean daily discharge, February 21, 1914, 68 second-feet (es- 
timated); minimum discharge estimated, 0.1 second-foot, each year. 

Diversions. — None. 

Regulation. — None. 

Accuracy. — Stage-discharge relation not permanent. Gage read to hundredths 
usually about twice a week. Discharge for days for which no readings were re- 
ported interpolated between discharge measurements or estimated by comparison 
with record of flow at station on West Fork of San Luis Rey River near Warner 
Springs. Records fair. 

142131 °— 21— w sp 447 14 



210 SURFACE WATEB OF PACIFIC SLOPE, SOUTHERN CALIFORl!^IA. 

Discharge measurements of Cmruo Creole near War7i€i- Springs., Calif., for 191S-1916. 



Date. 


Made by— 


Gage 
height. 


Dis- ; 
charge. ' 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1913. 
Jan 24 


W. J. Isbell 


Feet. 
0.91 
.90 
.90 
.95 
1.05 
.99 
.94 
.95 
.•94 
.93 
.93 
.92 
.91 
.86 
.85 
.87 
.87 
.86 
.90 
.93 
2.47 
2.51 
2.51 
2.52 
2.53 
2.54 
2.54 
2.58 
2.58 
2.57 
2.56 
2.55 
2.58 
2.57 
2.57 
2.55 
2.55 
2.54 
2.56 
2.57 


seen. 

.4 i 
.4 

.4 ; 

3.8 
1.0 
.6 
.7 

-.1 

.4 
.6 
.6 
.3 
.2 
.2 
.2 
.2 
.2 
.4 
.0 
.4 
.2 
.2 
«.2 
.3 
.2 
.2 
.1 
.2 
.1 
.1 
.2 
.2 
.2 
.2 
.3 
.3 
.2 
.2 
.3 

.2 
.4 
.4 
.7 
.5 
.6 
.6 
4.0 
3.6 


1914. 

Mar. 7 

10 

13 

21 

27 

29 

Apr. 10 

14 

17 

24 

30 

May 8 

11 

18 

July 11 

Sept. 9 

Oct. 16 

Nov. 16 

Dec. 24 

1915. 
Jan. 18 
Feb. 7 

13 

Mar. 3 

6 

13 

26 
Apr. 7 

17 
May 8 

14 
June 28 
July 10 

16 

28 

Aug. 2 

6 

14 

19 
Sept. 11 

29 
Oct. 13 
Nov. 13 

1916. 
Feb. 9 

14 

22 
Mar. 17 

28 
Apr. 24 
June 28 


W. J. Isbell 


Feet. 
2.62 
2.63 
2.60 
2.60 
2.63 
2.63 
2.63 
2.59 
2.58 
2.60 
2.63 
2.62 
2.60 
2.60 
2.52 
2.53 
2.53 
2.55 
2.60 

2.57 
2.70 
2.93 
3.05 
2.85 
2.80 
2.69 
2.67 
2.65 
2.80 
2.70 
2.58 
2.57 
2.58 
2.53 
2.54 
2.54 
2.56 
2.47 
2.48 
2.49 
2.51 
2.57 


Sec.-ft. 
1 2 


30 

Feb. 14 

19 


do 

do 

F. C. Ebert 


do 

do 

do 

do 

do 

do 

do 

do 

F.C. Ebert... 




1.0 
.8 

.8 


25 


W. J. Isbell 


1.0 


Mar. 13 
21 
29 


do 

do 

do 


1.0 

.8 
.4 


Apr. 2 
11 


do 

do 

do 

do 

do 

F. C, Ebert 


.4 
.8 


18 


W. J. Isbell 




9 


22 

May 6 

10 


do 

do 

do 

do......... 

do 

do 

do 

do 




'a 

.5 


16 


W.J. Isbell 


.08 


22 
30 
June 5 
9 
14 


do 

do 

do 

do 

F.C. Ebert 


.2 
.1 

.2 

.8 


20 


W. J. Isbell . 


W.J. Isbell 




27 


do 

do 

do 

F.C. Ebert 


.4 


July 23 

26 

Aug. 19 

Sept. 2 

9 


do 

do 

do 

F.C. Ebert 


.... 


2.0 
9.2 
17 


W.J. Isbell- .. . 


6.6 


do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

. . do 


W.J Isbell 




4 8 


22 
23 
29 
Oct. 6 
14 


do 

do 

do 

do 

R. W. Day.. 




2.4 
2.1 
1.6 
10 
3.5 


21 


W.J. Isbell 




.6 


29 
Nov. 1 
11 
17 
22 
25 
Dec. 15 
29 


do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

W.J. Isbell 




.3 
.3 
.3 
.2 
.3 
.3 
.1 
.1 


1914. 
Jan 9 


W. J. Isbell 


2.55 
2.57 
2.60 
2.62 
2.64 
2.60 
2.61 
2.76 
2.77 


.2 

.2 
.3 


23 

24 


do 

do 

do 

do 

do 

.....do 

do 


13 


30 
Feb. 3 
9 
12 
24 


do 

do 

do 

do 

F.C. Ebert 




"1*26* 
1.32 


9.1 
5.8 
5.6 
5.6 
8.8 


26 


Jas. Ridder 


W.J. Isbell 






1.2 













SAN LUIS BEY RIVER BASIN. 211 

Daily discharge, in second-feet, ofCarrizo Creeknear Warner Springs, Calif ., for 1913-1915. 



Day. 



Oct. 



Nov. 



Apr. 



May. 



July. 



0.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
,2 
.2 

.2 
.2 
.2 
.2 
.3 



0.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.3 

.3 
.3 
.3 
.3 
.3 
.3 



.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.5 

1.0 
1.6 
2.2 
3.0 
1.5 



0.8 
.8 
.5 
.5 
.5 



3.6 
3.0 
2.5 



7 

6.5 

6.5 

6.5 
6.5 
6.5 

6.5 

8.5 



2.0 
1.5 
1.2 
1.2 
1.2 

1.2 
1.2 
1.1 
1.1 
1.0 



6.5 
6.5 
6.0 
5.5 
5 

5 
5 
5 
5 
4.5 

4.5 

4 

4 

3.5 

3.5 



2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 
2,5 



2 

1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

2 

2 

2.5 

2.5 

2.5 

2.5 
2.5 
2.5 
2.5 
5 



3.5 
5 
13 



3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.0 
3 

3 
3 
3 
3 
3 

2.5 
2.5 
2.5 
2.5 
2.5 
2.5 



2.5 

2.5 

2 

2 

2 

2 
2 
2 
2 
1.5 



Note.— For discharge Jxine to September, 1914, see table of monthly discharge. 



212 SURFACE WATER OF PACIFIC SLOPE, SOUTHERIT CALIFORNIA. 

Monthly discharge of Carrizo CreeJc near Warner Springs, Calif., for 1913-1915. 



Month. 


Discharge in second- 


Rim-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 


Rim-off 

(total ia 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1913-14. 
October 


0.2 
.3 
.3 
40 
68 
2 
1 
.9 


0.1 
.2 
.2 

.2 
.5 
.8 


0.15 
.23 
.22 
3.56 
8.58 
1.00 
.75 
.56 
.50 
.50 
.40 
.20 


9.2 

14 

14 
219 
477 

61 

45 

34 

30 

31 

25 

12 


1914-15, 
October 


.6 
.6 
1.5 
35 
50 
17 
5 
13 
2.5 
.5 
.3 
.2 


0.1 
.2 
.2 
.4 
2 

2.5 
1.5 
2.5 

'.2 
.1 
.1 


0.20 
.30 
.70 
2.78 
8.95 
6.37 
2.10 
4.16 
1.35 
.34 
.19 
.13 


12 


November 

December 

January 


November 

December 

January 


18 
43 
171 


February 

March 


February 


497 
330 


April 


April 


125 


May 


May 


256 






80 


July 






July 


21 










12 


September 






September 

The year 


8 










The year 


68 




1.34 


971 


50 


.1 


2.17 


1,570 



SUSANNA CREEK NEAR WARNER SPRINGS, CALIF. 

Location.— Near southern boundary of Valle de San Jose grant, at highway bridge 
near mouth of canyon, 1,000 feet above junction with Carrizo Creek, and 7^ 
miles southwest of Warner Springs, San Diego County. 

Drainage area. — 4.6 square miles (measured on topographic map). 

Elevation. — ^About 2,800 feet above sea level. 

Records available. — February 1, 1913, to June 28, 1916. (Discharge measurements 
only 1912-13 and 1915-16.) 

Gage. — Staff bolted to upstream side of left bridge abutment. 

Discharge measurements. — Made by wading near gage. 

Channel and control. — Bed composed of sand; shifting. July 14, 1913, a plank 
was placed horizontally between abutments of bridge for a control. 

Extremes of discharge. — 1913-1915: Maximum stage not known, record incomplete; 
maximum mean daily discharge, February 21, 1914, and February 11, 1915, 70 
second-feet (estimated); no flow ior several months each year. 

Diversions. — None. 

Regulation. — None. 

Accuracy. — Stage-discharge relation not permanent. Gage read to hundredths usu- 
ally about twice a week. Discharge for days for which no readings were 
reported interpolated between discharge measurements or estimated by com- 
parison with record of flow at stations on Carrizo Creek and West Fork of San 
Luis Rey River near Warner Springs. Records fair. 



SAN LUIS REY RIVER BASIN. 213 

Discharge msasurements of Susanna Creehnear Warner Springs, Calif., for 1913-1916. 



Date. 



Made by- 



Gage 
height- 



Dis- 
charge. 



Made by- 



height. 



Dis- 
charge. 



1913. 

Feb. 1 
2G 

Mar. 13 
21 
24 

Apr. ^, 

18 

May 6 
10 
16 
22 
30 

June 5 
9 
14 
20 
27 

Aug. 29 

Sept. 23 
29 

Oct. 14 



Nov. 1 
11 
17 
25 

Dec. 29 

1914. 
Jan. 9 



30 
Feb. 3 
9 
12 
24 
26 
Mar. 7 
10 
13 
21 
27 



W. J.Isbell 
...do.. 
...do.. 
...do.. 
...do.. 
...do.. 
...do.. 
...do.. 
...do-. 

-...do 

F. C. Ebert. 
V/. J.Isbell. 

....do 

....do , 

....do 

....do 

F.C. Ebert. 
W.J. Isbell. 

....do 

F.C. Ebert. 
W.J. Isbell. 
..do... 
..do... 
..do... 
..do... 
..do... 
..do. 
..do... 
..do... 
..do.., 



W.J. Isbell. 

do.. 

do.. 

do.. 

do.. 

do.. 

.....do.. 

do.. 

Jas. Ridder. 
W.J. Isbell. 

do , 

do 

do 



Feet. 
0.90 
1.29 



Sec.-ft. 
0.6 
2.3 
2.8 
2.0 
2.6 
2.6 
1.5 
2.3 
1.3 
.9 



3.3 
2.2 
1.1 
1.1 
2.8 
6.2 
2.4 
2.2 
2.1 
1.4 
1.9 



1914. 
Mar. 29 
Apr. 10 



May 



Aug. 21 

Dec. 21 

31 

1915. 
Jan. 8 

18 
Feb. 7 

13 

Mar. 3 

6 

13 

26 
Apr. 7 

17 
May 8 

14 
June 28 
July 10 

16 

28 

Aug. 2 

6 

14 
Sept. 11 

29 
Oct. 13 
Nov. 13 

1916. 
Feb. 9 
14 

Mar. 17 

28 

Apr. 24 

June 28 



W. J. Isbell 

....do 

....do 

-.-.do 

F.C. Ebert. 
W.J. Isbell. 

....do 

F.C. Ebert. 
W.J. Isbell. 
F.C. Ebert. 
W.J. Isbell. 
....do , 



W. J. Isbell 

....do 

....do 

....do 

....do 

F. C. Ebert 
W. J. Isbell 

...-do 

....do 

....do 

....do 

R. W. Day. 
W. J. Isbell 

...do 

--.do 



-.-do., 
.-.do., 
-..do-. 
...do.- 
...do-. 
...do., 
-.-do.. 



W. J. Isbell 

do , 

do , 

...-do , 

..-.do 

F. C. Ebert 
W. J. Isbell 



Feet. 
0.56 
.53 

.51 
.51 

.53 

.57 



.51 
.51 



1.20 

.87 
.54 
.50 
.47 
.48 



Sec.-ft. 
2.3 
1.4 
1.1 
1.0 
1.8 
3.1 
2.0 
1.4 
1.2 
.0 



5.8 
18 
10 
11 
10 
5.5 
4.3 
4.2 
27 
13 
2.6 
1.2 
.9 
.7 
.4 
.7 
.5 
.1 



29 
21 



8.7 
11 



214 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN GALIFORK-JA. 

Daily disrJmrae, in second-feet, of Sumnna Creeh ^iiear Warner Sjmngs, Ccdif., for 1913- 

1915. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


i9iS-l4. 
1 








0.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 

.2 

.2 
.2 
.2 
.5 

1.0 
1.6 
2.2 
3.0 
1.5 

.8 
.7 
.7 
.5 

1.0 

35 

45 

10 
7.0 
3.3 
3.0 

.4 
1 
1 
4 
3 

2 

1.5 

5 
50 
30 

8 


2.8 
2.5 
2.2 
2.0 
1.8 

1.6 
1.4 
1.2 
1.1 
1.1 

1.1 
1.1 
1.1 
1.1 
1.1 

1.1 

1.1 
1.5 

35 

65 

70 
40 
15 

2.8 
4.5 

6.2 
5.5 
4.5 

8 
25 
16 
11 

9 

7 
6 
5 
5 
55 

70 
26 

18 
18 
18 

11 
10 
10 

9 

9 

9 

8.5 
8.5 
8.5 
24 

11 
9 

8 


4.0 
3.0 
2.4 

2.4 

2.4 

2.4 
2.4 
2.3 
2.3 
2.2 

2.2 
2.1 
2.1 
2.0 
1.9 

1.8 
1.7 

1.6 
1.5 

1.4 

1.4 
1.4 
1.4 
1.6 
1.7 

1.9 
1.9 
2.1 
2.3 
2.2 
2.1 

10 
12 
10 
10 
11 

11 
11 
12 
13 
13 

12 
11 
10 
10 
9 

9 
9 

8 
8 
8 

7 
6 
6 
6 
5.5 

5.5 

6 

6 

6.5 

6.5 

6.5 


2.0 
2.0 
1.9 
1.8 
1.7 

1.6 
1.5 
1.5 
1.4 
1.4 

1.3 
1.2 
1.1 
1.1 
1.1 

1.1 
1.1 
1.2 

1.4 

1.6 

1.8 
2.0 
1.9 

1.8 
2.0 

2.2 
2.4 
2.0 
2.8 
3.1 

6 
5 
5 
5 

5 

5 
4.5 

4.5 
4 

4 

4 

4 

6 

7.5 

6 

5 
4 
4 
4 
4 

5 

5.5 

6.5 

6.5 

6.5 

6.5 
6 
6 

6.5 
15 


3.0 
2.8 
2.7 
2.5 

2.4 

2.2 
2.1 
2.0 
1.8 
1.6 

1.4 
1.4 
1.4 
1.3 
1.3 

1.2 
1.2 
1.2 
1.2 
1.2 

1.1 
1.1 
1.1 
1.1 

1.0 

1.0 
1.0 
1.0 

.9 
.9 
.9 

15 
12 
11 
15 
30 

20 
23 
27 
15 
10 

9.5 
10 
12 
13 
13 

12 
12 
11 
11 
10 

10 
9 
9 
9 
9 

8 

7.5 

7.5 

7 

7 

6. 5 


0.9 

.8 
.8 
.8 

.8 

.7 
.7 
.7 
.7 
.6 

.6 
.6 
.6 

.5 








2 














3 














4 














5. 














G 














7 














8 














9 














10 














11 














12 














13 














14 














15 








.5 

'.5 
.4 
.4 
.4 

.3 
.3 
.3 








16 














17 














18 














19 















20 






0.1 

.1 
.1 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 
.2 








21 












22 ... 












23 












24 






.3 

.2 

.2 
.2 
.2 
.1 
.1 








25 












26 












27 












28 












29 












30 












31 












1914-15. 
1 






6.5 

6.5 

6 

6 

6 

8 
6 

5.5 
5 

5 

4.5 

4 

3.5 

3.5 

3.5 

3.5 

3 

3 

3 

3 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 

2.5 


2 
2 
2 
2 
1.5 

1.5 
1.5 
1 
1 

1 

1 

1 

1 

.9 
.9 

.9 
.9 
.9 
.9 

.8 

.8 
.8 
.8 
.8 

.7 

.7 
.7 

'.7 

.6 
.5 


0.4 
.4 

.4 
.5 
.6 

'.7 

.6 
.6 

.6 
.5 

.5 
.5 

.5 
.5 
.4 
.4 
.4 

.4 

.4 
.4 
.4 
.3 

.3 
.3 
.3 
.3 
.3 
.3 


0.2 


2. 








.2 


3 








,2 


4 








.2 


5 








.2 


6. . 








.2 










.2 


8 










9 










10 











11 










12 










13 










14 










15 










16 










17 






,1 
.5 
1.0 
.9 

.9 

.8 
.8 

ie 

.4 
.4 
.4 
.4 
.4 
.4 




18 








19 








20.. 








21 








22 








23 
























26 








27 . . 








28 








29 








30 . . 








31 

















Note.— Stream dry Oct. 1 to Dec. 19, 1913; July 1 to Dec. 16, 1914. 



SAN LUIS KEY RIVER BASIN. 215 

Monthly discharge of Susanna Creel near Warner Springs, Calif., for 1913-1915. 





Discharge in second-feet. 


Run-ofi 
(total 

in acre- 
feet). 


Month. 


Discharge in secoud-feet. 


Run-ofi 
(total 

in acre- 
feet). 


Month. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


IVlini- 
mum. 


Mean. 


1913-14. 
December 


0.2 

45 

70 
4.0 
3.1 
3.0 
.9 




.2 
1.1 
1.4 
1.1 
.9 
.1 


0.07 
3.87 
9.84 
2.07 
1.72 
1.52 
.49 


4.3 
238 
546 
127 
102 

93 

29 


1914-15. 

December 

January 


1 
50 
70 
13 
15 
30 

6.5 

2 
.7 
.2 


0.0 

_.4 

5.5 

4 

6.5 

2.5 
.5 
.3 
.1 


0.28 
3.67 

15.4 
8.85 
5.55 

12.3 
3.93 
1.05 
.46 
.12 


17 

22G 


February. . , 

March 


February 

March 


855 
544 


April 


April 


330 


Jl^y 


May 


756 


June 


June 


2U 




July 


65 

28 


The year.... 


70 





1.58 


1,140 


August 


September 

The year.... 


7 




70 


.0 


4.23 


3,090 



Note.— No flow in months for which record is not given. 

ESCOHDIDO MtTTTJAL WATER CO.'S CANAL NEAR NELLIE. CALIF. 

Location.— In SW. i NW. i sec. 33, T. 10 S., R 1 E., just below intake on left bank 
of San Luis Rey River, 3^ miles above Rincon Indian Reservation, 4 miles south- 
west of Nellie, San Diego County, and about 15 miles northeast of Escondido. 

Records available. — October 1, 1896, to September 30, 1918, except that there are 
no records for the years 1901-2 and 1903-4. 

Discharge.— November, 1896, to August, 1909, a weii* in the wooden flume, about 
200 feet below the sand box at the intake, was used to determine discharge. The 
weir consisted of a 1-inch board, held in position by guides fastened to the sides 
of the flume. Boards of widths ranging fi'om 6 to 12 inches, were used during this 
period. The head on the weir was read by holding a foot-rule on the crest. Jan- 
uary 1, 1910, to August 1, 1914, except December 1, 1912, to May 4, 1913, the weir 
was at the lower end of the sand box. The crest length was 6 feet and there was 
one incomplete end contraction. The head was measured from the top of a stake set 
level with the crest and 2 feet upstream. December 1, 1912, to May 4, 1913, obser- 
vations were made over a 4 by 6-inch timber, laid on its 4-inch face, in a straight 
section of the concrete canal opposite the zanjero's house at the tunnel camp 
about 2 miles below the intake. The length of the weir was 65 inches and the 
head was measured from the top of a stake set level with the crest and 4 feet up- 
stream. October 29, 1915, the wooden weir board was replaced by a concrete 
slab with a steel plate for the crest. The length of crest was not changed. 

In March, 1916, Mr. E. R. Bowen installed a weir at the south portal of tunnel 
No. 2 and developed rating curves for the various crude weirs which had been in 
use. The accompanying tables of daily and monthly discharge give the recom- 
puted dischB,rges and supersede those published in pre\d.ous water-supply papers. 

Cooperation. — Record as published was furnished by J. B. Lippincott, Los Angeles, 
Calif. 

The canal, which is 5.6 miles long, consists of flume, ditch, and tunnel sections con- 
structed through a very rough, mountainous country. It discharges into a reservoir 
about 6 miles northeast of Escondido. The dam is 76 feet high and 380 feet 
long, is of the usual rock-fill type, and is faced with redwood planks. The reservoir 
(capacity of 3,120 acre-feet) supplies water for irrigation and domestic uses at Escon- 
dido and vicinity. 



216 SURFACE WATER OF PACIFIC SLOPE, SOUTHERIST CALIFORNIA. 

Daily discharge, in second-feet, of Escondido Mutual Water Co.\s canal near Nellie, Calif., 

for 1896-1918. 



Day. 



Apr. 



1896-97. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16-... 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 



1.2 
1.2 



.85 
1.05 
1.05 



1.2 

1.65 
1.65 

1.4 

1.65 
1.85 
1.65 
2.05 

2.8 
3.1 
3.1 
2.55 
2.55 

2.55 



4.25 
4.25 



4.25 
3.6 
3.1 
3.1 
3.1 

3.6 
3.6 
3.6 
3.6 



6.2 
5.2 
4.25 
3.6 
3.1 

3.6 
3.1 
3.1 
3.1 
3.1 

3.1 
3.1 
3.1 

4.25 
19.4 



8.6 

7,7 
7.7 
6.2 



6.2 
6.2 
5.5 
5.5 
5.5 

5.5 
5.5 
5.5 
4.9 
4.9 

5.5 

5.5 
6.2 



15.6 
10.2 



5.5 
5.5 
5.5 
5. 5 
4.25 

4.25 
4.25 
a 10. 6 
a 21. 4 
all. 1 
a 9.0 



8.6 

8.6 

7.7 

a 7. 7 

6.95 

6.95 
6.2 
6.2 
6.2 
o9.1 

a 19. 5 

a 19. 5 

23.4 



13.8 
21.4 
125.4 
125.4 



a24. 1 
a 22. 5 
a 22. 5 
ffl 22. 5 

a 22. 5 
a 23.0 
a 22.0 
a 27. 3 
32.2 
o35.0 



6 31.2 

«35. 
a 35. 5 
a 35. 
o33. 1 

a 36.0 
a 37.0 
C31.2 
o33. 1 



a 23. 4 
a 23. 4 
o 23. 4 
a 23. 4 
a 22.0 

a 20. 4 
a 21. 9 
l>31.2 



a 31. 2 

a 40. 8 
a 37. 2 
a35. 
a 40. 8 

a 38.0 
6 35.0 



a 31. 2 
O35.0 

a 35.0 
a 35. 
o33. 1 



C31.2 
a 33.1 

a 33. 1 
a 37.0 
a 38. 9 
a 37. 
O37.0 

a 35.0 
31.2 
6 29.2 
a 24. 4 
al5. 

C15.6 
a 15. 6 
k15. 6 
15.6 
a 15. 6 

a 15. 6 
a 5.5 

a 5.5 



35.0 
a 29. 2 
a 31. 2 
31.2 
a 33.1 

a 29. 2 
o33. 1 
a 37.0 
a 35. 
31.2 

33.2 
a 27. 2 
a 27. 2 
a 25. 4 
a 25. 4 

a 19. 5 

a 15. 

12.0 

12.0 

12.0 

12.0 
12.0 
12.0 
12.0 
12.0 



Apr. 



1897-98. 
1 




2 


4.25 


3 


4.25 


4 


4.25 




4.25 


6. 


3 6 


7. 


3.6 


8 


3.6 


9 


3.1 


10 


3.1 


11 


3.1 


12 


3.1 


13 


3.1 


14 


3.1 


15 





6.2 
5.5 
10.2 
10.2 
6.95 

9.4 
9.4 



a 20. 4 
a 21. 4 



US. 5 

as. 5 
as. 5 
a7.5 
a7.5 

a6.i 
a7.5 

^37.0 
f25.3 
S21.4 

^20.0 
a6.6 
a4.2 

a2.7 
a2.o 



xlO.2 
10.2 
10.2 
10. 



o9.4 
9.8 

a 10. 2 
9.8 

a 29. 2 

a 35.0 
a 23. 4 
a 19. 2 

fl21.4 
a 25. 8 



a 13. 8 
a 13.1 
a 12. 2 
oil. 8 
oll.l 

a 10. 4 
a 10.2 
a 10. 2 
a 10. 2 
O10.2 

O10.2 
a 10. 2 

8.1 
7.7 
7.7 



1897-98. 
16 


8.6 


17 


6.95 


18 


12.0 


19 




20 


12.0 


21 


12 


22 


12.0 


23 


12.0 


24 


12.0 


25 


10.2 


26 


10.2 


27 


10.2 


28 


8.6 


29 


8.6 


30 


8.6 


31 


6.95 



a 20. 8 
a 28. 3 
"29.2 
a21.4 
a 20. 4 

16.2 
14.7 
a 30. 2 
a 34.0 
a 27. 3 

a 21. 4 
15.7 
a 21. 4 
24.4 
a21.4 
a 17. 5 



a 12.0 
a 15. 2 
a 25. 3 
a 18. 5 
a 15. 2 

a 14.0 
a 12. 4 
all. 6 
a 11.1 
a 11.1 

a 11.1 
a 11.1 
a 10. 4 



a 20.0 
a 23. 9 
a 23. 8 
a 29. 2 
a 31. 2 

a 23. 4 
a 19.0 
a 21.0 
a 17. 3 
a 15. 6 

a 30. 2 
a 26. 3 
a 24.1 
a 20. 7 
a 17.0 
a 15. 2 



a Mean of a. m. and p. m. readings. 



f> No flow in p. m. 



SAN LUIS KEY KIVER BASIN. 



217 



Daily discharge, in second-feet, ofEscondido Mutual Water Co.'s canal near Nellie, Calif., 
for 1896-1918— Contmued. 



Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr, 


1898-99. 
1 






3.6 
21.4 
35.0 
15.6 
17.5 

12.0 
12.0 
12.0 
11.1 
10.6 

10.2 
9.4 
9.4 
9.4 
9.4 


6.6 
6.2 
5.85 
5.5 
4.9 

4.25 
4.25 
4.25 
4.25 
4.25 

4.25 
4.25 
4.25 
4.25 

4.25 


12.9 
11.1 
10.6 

10.2 
9.8 

9.4 
8.6 
7.7 
7.3 
6.95 

6.6 
6.2 
5.5 
5.2 
4.9 


189S-99. 
16 




G.95 
6.95 
6.95 
6.6 
6.2 

5.85 
5.5 
3.6 
4.25 
4.25 

4.25 
3.95 
3.6 
3.6 
3.6 
3.6 


8.6 
8.1 
6.95 
6.6 
6.2 

5.85 
5.5 
5.5 
19.4 
12.0 

8.6 
7.7 
6.95 


4.25 
a33.1 
a29.2 
al7.6 
026. 4 

«33. 1 
a23. 4 
■'16. 6 
13.8 
12.9 

22.5 
13.8 
12.9 


4.55 


2 






17 




4.25 


3 






18 






4 






19 






5 






20 






6 






21 






7 






22 . . . 






8 






23 






9 






24 






10 






25 






11 






26 




5.5' 


12 






27 




4.9 


13 






28 






14 






29 . 






15 






30 






16.6 
13.8 










31 


















Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


1899-1900. 
1 


5.2 
4.9 

a8. 75 
6.95 

«19. 5 

al3.1 

all. 6 

10.2 

9.8 

9.4 

8.1 

.7.7 
7.7 

7.7 
7.7 


6.95 
6.95 
6.95 
6.95 
7.3 

7.3 

6.95 
6.95 
6.95 
6.95 

6.95 
6.95 
6.95 
6.95 
6.95 


3.95 
4.25 
4.25 
6.42 
12.0 

7.7 
6.95 
6.2 
5.5 
5.5 

5.2 
4.55 
4.55 
4.55 
al2.1 


4.25 
4.25 
5.5 
5.5 
5.5 

5.2 
5.^ 
6.95 
6.95 
6.2 

5.5 
4.9 
4.55 
4.9 
4.25 


7.3 
6.95 
6.2 
10.2 
al9.6 

029.2 
15.6 
12.0 
8.6 
6.95 

12.9 
15.6 
10.2 
8.6 
6.95 


1899-1900. 
16 


7.7 
6.95 
6.95 
6.95 
6.95 

6.95 
6.95 
6.95 
6.95 
6.95 

7.3 
7.3 
7.3 
6.95 
6.95 
6.95 


6.6 
6.6 
6.2 
6.95 
6.6 

6.6 

6.2 
5.5 
4.55 
4.55 

4.25 
3.95 
3.60 


4.55 
4.55 
4.25 
4.55 
4.55 

4.55 
4.9 
alO.3 
10.2 
5.5 

5.2 
4.9 
4.55 
4.55 
4.25 
4.25 


3.95 
3.6 
3.35 
3.1 
3.1 

12.0 
25.4 
13.8 
10.2 
7.3 

6.95 

7.7 

al7.7 

013.4 

9.4 


4.9 


2 


17 




3 


18 




4 


19 




5 


20 




6 


21 




7 


22 




8 


23 




9 


24 




10 


25 




11 


26 




12 


27 




13 


28 




14 


29 




15 


30 








31 
















Day. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


Day. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


1900-1901. 
1 




3.6 
3.6 
3.35 
3.35 
3.35 

3.35 
3.35 
3.1 
3.1 
3.1 




a21.4 
027. 3 
a27.3 
31.2 
33.1 




19.4 
18.4 
17.5 
21.4 
19.4 

18.4 
20.5 
17.5 
16.6 
15.6 

14.7 


1900-1901. 
16 . . 


1.85 
10.2 
15.6 
15.6 
12.0 

10.2 
21.4 
21.4 
10.2 
6.95 

5.5 
5.2 
3.6 
3.6 
4.25 




5.5 
5.5 
5.5 
5.5 
8.6 

a20.4 
al7.5 
14.7 
12.9 
23.4 

25.4 
17.5 
17.5 
15.6 
12.0 
10 6 


33.1 


19.4 
19.4 
18.4 
17.5 
17.5 

19.4 
19.4 
18.4 
17.5 
16.6 

16.1 
15.6 
14.7 
13.8 
20.5 
20.5 




2 






17 






3 






18... 






4 






19 








5 




3.1 

12.0 
25.4 


20 








6 




21 




7 








22 








8 








23.. 








9 




15.6 
12.0 

10.2 
8.6 
6.95 
6.2 
5.5 




11.1 
17.5 

23.4 
25.4 
23.4 
21.4 
19.4 


24 








10 






25 




11 






26 








12 






12.0 
23.4 
31.2 
33.1 


27... 








13 






28 








14 






29 








15 






30 














31 









































a Mean of a. m. and p. m. readings. 



218 SURFACE WATER OF PACIFIC SLOPE, SOUTHERIn CALIFORK-JA. 

Daily discharge, in second-feet, of Escondido Mutual Water Co.'s canal near Nellie, Calif., 
for 1896-1918~Goiitmued. 



Day. 



7.. 
8.. 
9., 
10.. 

11., 
12. 



16. 

17. 



23. 
24. 



30. 
31. 



4.5 

"9." 6' 



5.5 
5.5 
5.5 
5.5 

5.5 

5.5 
5.5 
5.5 
5.5 



3.6 
3.6 



3.6 
3.6 



3.6 
3.6 
3.6 
3.6 



3.6 
3.6 
3.6 

a4.9 

a6. 6 
ab. 85 
all. 6 
321. 4 
alO. 7 
al2.9 



alO.6 
0I5.6 
a27,2 
a5, 5 
127.2 

a27.2 

025. 3 
a26.3 
o27. 2 
a27.2 

a27.2 
a27. 2 

026. 3 
a21.4 
a24. 4 



023.4 
a23.4 
023. 9 
a23.9 

a23. 9 
a23.9 
a22.4 
a24.4 
023.9 

a21.9 
0I9.5 
ol7. 



al6.1 
al3.6 
al3.8 
«14.7 

al8.5 

027.2 
027.2 
a27.2 
027. 2 
026.8 

026.3 
0.24. 8 
a23. 8 
022. 2 
020.5 

020.0 
a25.3 
021. 4 
al8.0 
0I6.I 

0I6.I 
al5.2 
0I4.2 
ffl21.4 
027.2 

o27. 2 
023.9 
020.0 

018. 

019. 
o27. 2 



Apr. 



615.6 
027.2 

027.2 

027.2 
027.2 
027.2 
027.2 
027.2 

a27.2 
027.2 
a27.2 



May. 



027.2 
olO.a 
0IO.2 
alO.2 
0IO.2 

0I2.O 
al2.0 
al2.0 
12.0 



0I5.6 
o27. 2 

027.2 
027.2 
027.2 
o27. 2 
025.3 



Day. 


Mar. 


Apr. 


May. 


1904-5. 
1 


027.8 
G25.8 
027.2 
028.2 
027.2 

026.8 
027.2 
026. 8 
025.8 
023.0 


027.2 
027.2 
027. 2 
027.2 
027.2 

027.2 
027.2 
027. 2 
027.2 
027.2 


027.2 

026.3 

027.2 
027.2 
025. 8 
027.2 
027.2 


2 


3 


4 


5 


6 


7 


8 


9 


10 





1904-5. 
11 . . . . 


022.4 
026.3 
024.8 
026.3 
024.4 


12 


13 


14 . . 


15 


16 


17 




18 




19 




20 





Apr. 



027.2 
027.2 

027.2 
027.2 
027.2 

027.2 
C27.2 
a27.2 
027. 8 
027.2 



May. 



027.2 
027.2 
027.2 
027.2 

027.2 



15.6 
a22.5 

022.5 
022.5 

026. 3 
027.2 

027. S 
027.2 



Apr. 



027.2 
027.2 
027.2 
027.2 
027.2 

a27.2 
027.2 
<i27.2 
027.2 
a27.2 



May. 



Day. 



al2.4 
al2.6 
alO.2 
a 10. 2 
oll.l 

0I2.O 
24.4 
023.4 



027.2 
026.8 
024.8 



m.i 
no. 2 

110.2 



Day. 



23.4 
27.2 
27.2 
024.4 



27.2 
27.2 
027.2 
27.2 
27.2 



Day. 



1905-6. 

21 

22 

23 

24 

25....... 

26 

27 

28 

29 

30 

31 



21.4 
o 25. 4 
24.4 
19.5 

O17.0 

15.6 
15.2 
14.7 
a 13. 8 
013.4 
«12.9 



a 27. 2 
27.2 
«27.2 
«25.8 
a 24. 6 

23.4 
021.0 
25.8 



a Mean of a. m. and p. in. readings. 



SAF LUIS EEY EIVEK BASIN. 



219 



Daily discharge, in second-feet^ at Escondido Mutual Water Co.'s canal near Nellie, Calif., 
for 1896-1918— Contmued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


May. 


June. 


July. 


1906-7. 
1 .. . , ....... 






a 13. 4 
a 14. 2 
a 14. 7 
a 15. 2 
a 16. 6 

a 14. 7 
a 14. 2 
13.4 
a 14. 7 
a 14. 7 

15.6 
a 18. 5 
a 20. 4 






10.2 
10.2 
10.2 

8.6 
8.6 

8.8 
S.6 
8.6 
10.2 
10.2 

10.2 
8.6 
8.6 
8.6 
8.6 

8.6 
8.6 
8.6 
8.6 

8.6 

7^7 

7.7 

6.95 
6.95 
6.95 
6.95 
6.2 


5.5 


2 






a 24. 3 




5.5 


3 






5.5 


4 ... . . 






5.5 


5 _ , 






a 17. 7 
&21.4 




5.5 


6 


3.1 
3.6 
3.1 
3.6 

7.7 

B.l 
3.6 
3.6 
3.1 
3.1 

3.6 
3.1 
3.1 
3.1 
3.6 

3.1 
3.6 
3.6 




5 5 


7 




8 








9 




10 




11 








12 




4.25 
4.25 
4.25 
4.25 

5.5 
5.5 
5.5 
6.95 
6.95 

6.95 
6.95 
6.95 

7.7 
7.7 

8.6 
8.6 
9.4 
9.4 
10.2 
10.2 




13.... 




14 




15. . , . ... 




23. 4 

«24.3 
«24.3 
a 24. 3 
a 22. 4 
a 20. 4 

a 19.0 
a 16. 6 
16.6 
a 16. 6 
16.6 







16 




17 




18 




19 




20 , , 




21 




22 


* 


23 




24........ 




25 








26 






i 

617.5 

al9.4 

al9.4 

«24.3 

024.3 1 

19.4 I 




27 








28 




a 9.0 
G9.0 
a 14. 2 




29 . 




■' 


30............... 




31 . 




• 













Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1907-8. 
1 






8.6 


a 12. 9 
a 12. 4 
a 12.0 
a 12.0 
a 11. 8 

a 11. 3 
clO.6 
a 10. 2 
a 10. 2 
«10.2 

a 10.0 
a9.8 
O10.2 
a 10. 2 
a 14. 7 

14.7 
a 14. 7 
a 14. 2 
a 13. 8 
a 13. 8 

a 13. 4 
al2.9 
&12.9 

ai2"o' 
«12.0 
G12.0 


O12.0 
al2. 


a 5. 5 
a 5, 5 


a 12.0 
a 12. 
O12.0 
al2. 
a 12. 

O12.0 
a 12.0 
a 12.0 
O12.0 
a 12.0 

al2. 
a 12.0 
a 12.0 
CH2.0 
a 12.0 

a 12.0 
a 12.0 
a 12.0 
al2. 
a 12.0 

a 12. 
a 12.0 
a 12.0 
a 12. 
«12.0 

<x 12. ■ 
«12. 
12.0 
« 12. 
a 12.0 


ell. 6 
a 12. 
a 12. 
a 12.0 
a 12.0 

a 12.0 
a 12.0 
a 11.1 
a 11.1 


a 7. 7 
J 7. 7 








2 






8.1 
8.1 
8.1 
8.6 

8.6 
9.4 
9.4 

4.25 
8.6 

9.4 
9.4 
9.4 
9.4 
10.2 

9.4 
9.8 
9.4 
10.2 
10.2 

10.2 
alO.2 
O10.2 
alO. 2 
alO.2 

a-10.2 
alO. 2 
«10.2 
alO. 2 
ald.i 
al2. 9 




3 












4 












5 






a 5. 5 

a 5. 5 
a 5. 5 
5.5 

a5.5 
05.5 
05.5 
a 5. 5 
a5.5 

a 5. 5 
a5.5 
«5.5 
a 5. 5 
5.5 

o5.5 
5.5 
05.5 
a 0.5 
a 0.5 

a 5.0 
a 5. 5 
5.5 


"a 5. 5 
a5.5 
05.5 
a5.5 

Hi 

05.5 
o5.5 
«5.5 

at.5 
a 5. 5 
a 5. 5 
a 9. 8 

«9.8 
a9.8 
9.8 
a 10. 2 
O12.0 

"8.6 
a 12.0 
a 12.0 
a 12.0 
a 12.0 
a 12.0 








6 














7 















8 














9 








i 




10 






a 11.1 

a 11.1 
a 11. 1 
«10.2 
a 10. 2 
a 10. 2 

a 11.1 
a 10. 2 
a 10. 2 
a 10. 2 
a 8. 6 

a 8. 8 
a8.6 
a 8. 6 
a8.6 
a 8. 6 

a8.6 
a8.6 
a 8. 6 
a8.6 
a 8. 6 








11 












12. 








.... 




13 , 








1 




14......... 












15 








1 




16 








i 




17... 








i 




18 












19 












20 








" 






21 














22 














23 














24 














25 














26 




9.0 
9.0 
9.0 

8.6 
8.8 










27 






28 












29 












30 













31 







a Mean of a. m. and p. m, readings. 



220 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Daily discharge^ in second-feel, of Escondido Mutual Water CoJs canal near Nellie, Calif. y 
for 1896-1918— QontmuQ^. 



Day. 


Oct. 


Nov. 


Dee. 


Jan. 


Feb, 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1908-9. 
1 






6.2 
6.2 
6.95 
6.95 
6.95 

6.95 
8,6 
6.95 
6.95 
6.2 

6.2 
6.2 
6.2 
6.2 
6.2 

10.2 
8.6 
8.6 
6.95 
6.2 

6.2 
6.2 
6.2 
6.2 
6.2 

6.2 
6.2 
6.2 
6.2 
6.2 
6.2 


6.2 
5.5 
6.2 
6.2 
6.2 

6.2 
6.2 
6.2 
10.2 

8.6 

8.6 
11.1 
11.1 
11.1 
16.6 

19.4 
12.0 
12.9 
12.9 
12.9 

12.9 


23.4 
23.4 
23.4 

"23.'4' 

15.6 
15.6 

"21 .'4" 
21.4 




19.4 
19.4 
19.4 
19.4 
21.4 

21.4 
21.4 
21.4 
23.4 
23.4 

13.8 
23.4 
23.4 
21.4 
21.4 

23.4 
21.4 


17.5 

18.4 

18.4 

a 16. 6 

18.4 

a 19.0 
a 18. 4 
C5 19.4 
a 19.0 
a 19.0 

0I8.4 
0I8.4 
olS. 4 
«10.2 
a'lO. 2 

a 10. 2 
a 10. 2 
a 10. 2 
a 10. 2 
«10.2 

0IO.2 
a 10. 2 
010.2 
010.2 

10.2 
10.2 
10.2 
10.2 
10.2 

6.4 
6.4 
6.4 
6.4 
6.4 

6.4 
6.4 
6.4 
6.4 
6.4 

6.4 
6.4 
6.4 
6.4 

6.4 

6.4 
6.4 
6.4 
6.4 
6.4 

6.4 
6.4 
6.4 
6.4 
6.4 
6.4 

7.5 
7.5 
7.5 
7.5 
7.5 


10.2 
10.2 
10.2 
10.2 
10.2 

10.2 
10.2 
10.2 
10.2 
10.2 

10.2 
10.2 
10.2 
10.2 
10.2 

10.2 
10.2 
10.2 
10.2 
10.2 

10.2 
10.2 
10.2 
10.2 
10.2 

10.2 
10.2 
10.2 
10.2 
10.2 
10.2 

7.5 
7.5 
7.5 
7.5 
7.5 

7.5 
7.5 
7.5 
7.5 

7.5 

7.5 
7.5 
7.5 
7.5 
7.5 

7.5 
7.5 

7.5 
7.5 
7.5 

7.5 
5.4 
5.4 
5.4 
5.4 
5.4 

5.4 
5.4 
4.6 
4.6 


10.2 
10.2 
10.2 

8.6 

7.7 

6.95 
6.95 
6.95 
6.2 
6.2 

6.2 
6.2 
6.2 
6.2 
6.2 

6.2 
6.2 
6.2 
6.2 

5.85 

5.85 
5.5 
4.9 
4.25 
4.25 

3.6 
3.6 
3.1 
3.1 
3.1 


2.55 
2.05 
2.05 
2.55 

2.55 

2.55 
2.05 
2.05 
2.05 
2.05 

2.05 
2.05 
2.05 
2.05 
2.05 

2.05 
2.05 
2.05 
2.05 
2.05 

2.05 
2.05 
2.05 
2.05 






2 










3 










4 










5 








6 . ... 










7 










8 . ....... 










9 










10 










11 










12 










13 










14 










15 










16 










17 










18 










19 














20 














21 














22 














23 
















24 




6.95 
6.95 






011.2 
14.7 

14.7 






25 












26.... 




"'i4."2' 
19.4 
15.6 
15.6 


8.6 
12.0 
12.0 








27 




6.2 
6.2 
6.2 
6.2 








28 










29 










30 




11.7 
11.7 
11.7 
11.7 
11.7 

11.7 
11.7 
11.7 
12.3 
12.3 

12.3 
12.3 
12.3 

13.7 
13.7 

15.8 
15.1 
16.5 
16.5 
17.3 

17.3 
17.3 
17.3 
17.3 
17.3 
17.3 

17.3 
17.3 
17.3 


14.7 
15.6 

17.3 
17.3 
17.3 



"i7.'3' 
17.3 
14.4 
14.4 

17.3 
17.3 
17.3 
17.3 
17.3 

17.3 
17.3 
17.3 
17.3 
17.3 

17.3 
17.3 
6.4 
6.4 
6.4 
6.4 

6.4 
6.4 
6.4 
6.4 
6.4 
6.4 








31 










1909-10. 
1 






■"3.'0' 
3.0 
3.0 
3.0 

2.3 
2.3 
1.7 

1.7 
1.7 

1.7 
1.2 
1.2 

1.2 
1.7 

2.3 
2.3 
2.3 

1.7 
1.7 

1.7 
1.7 
1.7 
1.7 
1.7 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 


1.2 
1.2 
1.2 

.8 
.8 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
.8 
1.2 

1.2 
1.2 


1.2 

.8 
.8 
.8 
.8 

.8 
.8 
1.2 
1.2 
1.2 

1.2 




2 












3 












4 












5 












6 












7 












8 








6.4 
6.4 

7.5 

7.5 
12.3 
13.0 
13.0 

11.7 




9 










10 










11 










12 










13 .... 












14 '. 












15 













16 












17 








11.7 
11.7 
11.7 
11.7 

11.7 
11.7 
11.7 
11.7 
11.7 
11.7 

11.7 
11.7 
11.7 
11.7 
11.7 
11.7 






18 












19 














20 . ... 














21 














22 














23 














24 














25 














25 














28 














27..., 














28 














29 ... 














30 














31 



































a Mean of a. m. and p.m. readings. 

Note.— Gage was read once each day unless otherwise indicated. Canal was dry on days when no dis- 
charge is given. 



SAN LUIS KEY mVEK BASIN. 



221 



Daily discharge, in second-feet, of Escondido Mutual Water Co.^s canal near Nellie, Calif, 
for 1896-1918— Continued. 



Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


1910-11. 
1 


2.3 
2.3 
2.3 
2.3 
2.3 

2.3 
2.3 
2.3 
2.3 
2.3 

2.3 
2.3 
2.3 

2.6 
2.6 


3.7 
3.7 
3.7 
3.7 
3.7 

3.7 
3.0 
3.0 






20.3 
20.3 
20.3 
20.3 
20.3 

20.3 
20.3 
20.3 
20.3 
20.3 

20.3 
20.3 
20.3 
20.3 
20.3 


16.5 
15.1 
13.7 
13.7 
13.7 

13.7 
12.3 
11.0 
11.0 

9.8 

9.8 
8.6 
7.5 
8.6 
9.8 


1910-11. 
16 


2.6 
2.3 
2.3 
2.3 
3.0 

3.0 
3.7 
3.7 
3.7 
3.7 

3.7 
3.7 
3.7 
3.7 
3.7 


12.3 
15.1 
17.3 
15.1 

13.7 

12.3 
11.0 
11.0 
11.0 
13.7 

17.3 
19.5 


19.5 
19.6 
19.5 
19.6 
19.5 

19.5 
19.5 
1... 5 
19.6 
20.3 

20.3 
20.3 
20.3 


20.3 
20.3 
20.3 
20.3 
20.3 

20.3 
20.3 
20.3 
20.3 
20.3 

20.3 
20.3 
20.3 
20.3 
20.3 
20.3 


20.3 
20.3 
20.3 
29.3 
20.3 

20.3 

'ii'.s 

19.5 
19.5 

19.5 
20.3 
20.3 
19.5 
18.0 


8.6 


2.... 




20.3 
20.3 
19.5 
20.3 


17 


8.6 


3 .. 


18 


8.6 


4 


19 


7.5 


5 


20 

21 


7.5 


6.. 


6.4 


7.... 




17.3 
20.3 
20.3 
20.3 

20.3 
20.3 
20.3 
20.3 
20.3 


22 


5.4 


8.... 


23 


4.6 


9.... 


24 


4.6 


10.. . 






25 




11.... 






26 




12 


27 




1.3 






28 




14.... 


12.3 


'17." 3" 


29 


.. 


15 


30 


13.7 
17.3 









31 














Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


1911-12. 
1 


11.0 
12.3 
11.7 
11.0 

8.6 

8.6 
8.6 
8.6 
8.6 
8.6 

11.0 
9.8 
7.5 
6.4 
6.4 


5.9 
5.4 
5.0 
4.6 
5.4 

5.4 
6.5 
7.5 
7.5 

6.4 

6.4 
6.4 
5.4 
5.4 
5.4 


11.0 
11.0 
11.0 
11.7 
13.0 

'ih'i' 

18.0 


14.4 
14.4 
15.8 

'2L8' 

22.6 
22.6 
22.6 
24.2 
24.2 

25.8 


23.4 
24.2 
24.2 
24.2 
24.2 

24.2 
25.8 
25.8 
24.2 
24.2 

24.2 
24 2 
24.2 
24.2 
24.2 


6.4 


1911-12. 
16.. .. 


6.4 
5.4 
11.0 

7.5 
6.4 

6.4 
6.4 
5.4 
5.4 
5.4 

8.6 
8.6 
7.5 
7.5 
6.4 
5.9 


5.4 
5.4 
5.0 
4.8 
4.6 

4.1 
4.8 
4.6 
4.6 
4.1 

4.1 
4.6 
4.6 
4.6 






24.2 
22.6 
25.8 
25.8 
25.8 

25.8 
25.8 
25.8 
25.8 
25.8 

15.1 
12.3 
11.0 
8.6 
6.4 




2.... 


17. . . 








3..'. 


18 








4.... 


19. ... 








5 


20 


11.7 

13.7 
14.4 
14.4 
14.4 
14.4 

14.4 






6.... 


21 ... . 




7 


22 




8.... 


23 




9.... 


24... 




10 


25 




11 


26 




12 


27 




13 






28. 


14.4 
14.4 
14.4 
14.4 


'22.'6" 




14 






29 




15 






30 ... . 










31 














Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


1912-13. 
1 


4.9 
3.8 
3.5 
2.8 
2.3 

2.1 
2.1 
2.3 
2.3 
2.3 

2.5 
2.5 
2.5 
2.5 
2.5 


3.5 
3.5 


6.1 
6.1 
6.1 
6.1 
11.3 

13.8 
14.2 
17.9 
14.9 
11.7 

10.0 

8.7 
7.7 
7.4 
7.1 


20.8 
20.0 
19.3 
21.5 
21.5 

21.5 
21.5 
21.5 
21.5 
20.0 

20.0 
22.3 
22.3 
20.8 
20.0 


18.6 
21.5 
18.6 
17.1 
16.0 

15.6 
14.9 
14.2 
13.1 
12.0 

10.0 
10.0 
10.0 
14.9 

12.8 


2.5 
1.9 
1.9 
1.9 


1912-13. 
16 

17.... 


2.5 
2.5 
2.5 
2.5 
2.5 

3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 
3.5 


'u's 

10.7 

8.7 
8.7 
8.7 
8.0 
7.7 

7.4 
7.4 
6.7 
6.1 
6.1 
6.1 


6.7 
6.7 
6.7 
7.4 
8.0 

14.2 
17.5 
12.8 
18.6 

*i9.*3' 


20.0 
19.3 
19.3 
19.3 
23.1 

20.0 
20.0 
23.1 
23.1 
22.3 

22.3 
22.3 
21.5 
21.5 
20.0 
20.0 


12.8 
12.8 




2 




3 


18 




4.... 


19 


17.5 
13.5 

11.3 
11.3 
10.0 
9.3 

9.0 

8.4 
7.4 
6.1 
6.1 
6.1 




5 


20... . 




6 


21 




7 


22 




8 


23 




9 


24.. . 




10 


25 




11 


26 




12 


27 




13 


28.... 




14.... 


29.... 




15 


30 






31 













222 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

ofEscondido Mutual Water 
fa>' 1896-1918— Gontimied 



Daily discharge, in second-feet, ofEscondido Mutual Water Co.^s canal near Nellie, Calif. ^ 
far "^"^ """'' ^ "' 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1913-14. 
1 








7.5 
6.4 
5.9 
5.4 
5.0 

4.6 
4.1 
3.7 
3.7 
3.7 

3.7 

3.7 
3.7 
3.7 

7.5 

15.1 
24.2 
18.0 
39.7 
24.2 

18.0 
12.3 
13.7 
13.7 
25.8 

30.4 


36.6 
36.6 
40.4 
36.6 
33.5 

30.4 
28.2 
25.8 
24.2 
22.6 

21,8 
21.1 
18.0 
17.2 

las 

15.8 
19.5 
21.1 


" ■24.'2' 

30.4 

38.1 
42.7 
42.7 
42.7 
30.4 

30.4 
38.1 
38.1 
38.1 
38.1 

38.1 
35.1 
33.5 
33.5 
32.0 

30.4 
30.4 
30.4 
33.5 
33.5 

36.6 
36.6 
36.6 
36.6 
36.6 
36.6 

33.5 
33.5 
33.5 
33.5 
33.5 

33.5 
33.5 
33.5 
33.5 
33.5 

13.7 
11.3 
11.3 
11.3 
11.3 

11.3 
7.5 
11.3 
11.3 
11.3 

11.3 
11.3 
11.3 
11.3 
11.3 

16.5 
16.5 
16.5 
16.5 
16.5 
16.5 


36.6 
36.6 
36.6 
a 15. 2 
18.0 

12.3 
12.3 
12.3 
12.3 
12.3 

12.3 
12.3 
12.3 
12.3 
12.3 

a 15. 9 
18.0 
16.5 
15.8 
15.1 

9.8 

"i2.'3' 
7.5 
12.3 

12.3 
12.3 
11.0 
12.3 
12.3 

16.5 
16.5 
16.5 
16.5 
16.5 

16.5 
16.5 
16.5 
16.5 
16.5 

16.5 
12.3 
16.5 
16.5 
13.7 

13.7 
13.7 
16.5 
16.5 
12.3 

16.5 
16.5 
16.5 
15.1 
15.1 

12.3 
12.3 
16.5 
16.5 
12.3 


24.2 
24.2 
29.7 
29.7 
29.0 

27.4 
24.2 
19.5 
18.0 
17.6 

16.5 
15.8 
15.8 
18.7 
18.0 

16.5 
15.8 
14.4 
13.7 
12.3 

11.7 
11.0 
11.0 
11.0 
11.0 

11.0 
10.4 
9.8 
9.2 
8.6 
8.6 

9.8 
12.3 
6.4 
6.4 
6.4 

6.4 
6.4 
6.4 
6.4 
6.4 

6.4 
6.4 
6.4 
6.4 
6.4 

6.4 
6.4 
6.4 
6.4 
6.4 

6.4 

6.4 
6.4 
6.4 
6.4 

6.4 
6.4 
6.4 
6.4 
6.4 
6.4 


8.6 
9.8 
9.8 
7.5 
0.9 

7.5 
all. 1 

15.8 
10.4 

8.6 

7.5 
6.4 
5.9 








2 














3 














4 














5 






2.8 

2.8 
2.8 
2.0 
2.3 
2.3 

2.3 
2.3 
2.3 
2.6 
2.6 

2.6 
2.6 
2.6 
2.6 
3.7 

3.7 
5.4 
7.5 
6.9 
7.5 

7.5 
6.4 
6.4 
5.9 
12.3 
9.8 








6 












7 












8 












9 












10 












11 












12 












13 . - 












14 












15 














16 














17 














18 














19 














20 














21 














22 














23 














24 














25 








. 






26 














27 














28 


















29 


















30 


















31 






33.5 

6.7 
6.4 
6.2 
8.0 
9.2 

7.7 
7.7 
7.7 
10.1 
9.8 

9.8 
9.8 
9.8 
9.8 
9.8 

9.8 
9.8 
9.8 
9.8 
9.8 

9.8 
9.8 
.24.2 
14.7 
32.7 

33.5 
21.8 
, 27.4 
33.5 
33.5 
33.5 


24.2 
24.2 
24.2 
24.2 
29.0 

33.5 
33.5 
33.5 
33.5 
33.5 

33.5 
33.5 
33.5 
33.5 
33.5 

33.5 
33.5 
33.5 
33.5 
33.5 

33.5 
33.5 
33.5 
33.5 
33.5 

33.5 
33.5 
33.5 










1914-15. 
1 






6.4 
6.4 
6.4 
6.4 
6.4 

6.4 
6.4 
6.4 
9.8 
9.8 

9.8 
9.8 
9.8 
9.8 
9.8 

9.8 
9.8 
9.8 
9.8 
19.5 

19.5 
22.6 
22.6 
22.6 
22.6 

22.6 
21.8 
21.8 
22.6 
22.6 


22.6 
22.6 
15.1 
18.0 
19.5 

18.0 
18.0 
18.0 
13.7 
13.7 

13.7 
13.0 
13.0 
12.3 
12.3 

11.7 
11.0 
11.0 
10.4 
10.4 

10.1 
9.8 
9.5 
9.2 

8.6 

8.0 
8.6 
8.6 
8.0 






2 






5.0 
3.5 
3.4 
4.1 

3.5 
3.7 
3.5 
3.5 
3.5 

5.6 
22.6 
10.4 
6.7 
5.6 

5.4 
10.7 
25.8 
19.5 
16.1 

16.5 
13.7 
12.0 
10. 4 

8.6 

8.3 
9.2 
9.2 

7.7 
7.7 
7.5 






3 




■ 






4 










5 










6 








7 










8 










9 










10 .... 










11 










12 










13 










14 










15 










16 










17 










18 










19 










20 










21 










22 










23 










24 










25 










26 










27 










28 










29 










30 










31 


























Note.— Gage 
not given. 


was rea 


d once 


oMean 
daily e^ 


of mori 
ccept as 


ling anc 
indica 


i af tern 
ted. C 


oon disc 
mal wa 


harges. 
s dry 


Q days 


for wlii 


3h disci 


large is 



SAN LUIS BEY BIVER BASIIS", 



223 



Daily discharge, in second-feet, of Escondido Mutual Water Co. ''s canal near Nellie, Calif., 
for IS 96-1 9 18— Continued, 



Day. 



Apr. 



May. 



July, 



Sept. 



Apr. 



May. 



-July. 



Aug. 



Sept. 



7. 
8. 
9. 
10. 



11. 
12. 



a 6. 7 
6.5 

a 6. 4 
6.3 

a 6. 2 
6.1 

O6.0 
5.9 

a 5. 9 



a 4. 8 
4.8 



1916. 
16 


18 


17 


IS 


18 


18 


19. . 


18 


20 


22 


21. 


22 


22 


24 


23. .. 


24 


24 


27 


25 


27 


26 


27 


27. . 


27 


28 


28 


29. . 


28 


30 


28 


31 





5.9 
a 6.0 

6.1 
a 6. 3 

6.5 



a 6. 7 

6.7 

a 8. 4 

10 
a 7. 8 

5.7 
a 5. 5 

5.3 
a 5. 4 



Day. 



7... 
8... 
9. . . 

le:. 
11.. 

12.. 
13.. 



16.. 
17.. 

•18... 
19.. 
20.. 

21.. 
22.. 
23.. 
24.. 
25.. 

26-. 
27.. 



30.. 
31.. 



Oct. 



24 
26 
26 



4.8 
4.8 
4.8 
4.8 
4.8 

4.8 
€.3 
6.3 



6.3 
6.3 
6.3 
6.3 
6.3 



Apr. 



8.9 
8.9 



May. 



8.9 
8.9 
8.9 



8.9 
8.9 
8.9 
8.9 
8.9 



8.9 
8.9 
6.7 
6.3 
6.3 



July. 



5.9 
6.3 
6.3 
5.9 

5.9 

5.9 
5.9 
5.5 
5.5 
5.1 

5.1 
5.1 
5.5 
5.5 
5.1 

5.1 
4.8 
5.1 

4.8 



4.8 
5.5 
5.9 



7.1 
5.9 

5. 5 



Aug. 



6.3 
5.9 
4.8 
5.1 



4.8 
4.5 
4.2 
4.2 

4.2 
4.2 
4.2 
4.2 
4.2 

4.2 
3.8 
4.2 



Sept. 



3.5 
3.5 
3.5 
3.5 
3.5 

3.2 
3.2 



3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.2 
3.2 
2.7 
4.8 

16 
6.3 

4.8 
4.8 
5.5 



4.5 
4.2 
4.2 
3.8 



a No record, discharge interpolated. 

Note.— No flow Sept. 6-30, Oct. 1, Nov. 26, Dec. 22-30, 1916; aad Jan. 
wn. No record Oct. 1 to Apr. 7 and Apr. 9-15. Canal probably dry. 



3, 20-25, June 21-25, and Sept. 10, 



224 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

ofEscondido Mutual Water 
for 1896-1918— Continued. 



J)aily discharge, in second-feet, ofEscondido Mutual Water Co.^s canal near Nellie, Calif. , 



Day. 


Oct. 


Nov. 


Dec. 


Jaxi. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1917-18. 
1 


16.5 
16.8 
15.0 
16.4 
17.1 

16.5 
16.5 
2.6 

14.8 
16.2 

16.4 
16.8 
16.0 
16.7 
16.7 

16.2 
16.0 
14.9 
15.1 
16.5 

.0 
15.0 
15.1 
16.8 
16.9 

18.4 
16.2 
.0 
16.4 
15.1 
16.4 


16.0 
16.2 
15.0 
.0 
16.1 

15.1 
14.9 
15.0 
16.1 
14.9 

.0 
16.4 
16.6 
16.0 
16.6 

16.5 
16.1 
.0 
14.9 
16.1 

16.0 
16.3 
16.2 
16.5 
.0 

16.1 
14.9 
16.2 
16.0 
16.2 


8.4 
9.4 
9.4 
9.9 
9.4 

9.4 
8.9 

8.4 
8.4 

8.4 

8.9 
8.9 
9.9 
9.9 
9.4 

9.4 
8.9 
8.4 
8.4 
8.9 

9.4 
9.4 
9.9 
9.9 
9.9 

9.9 
9.4 
9.4 

8.9 
8.9 
8.9 


8.9 
8.9 
8.9 
10.4 
9.9 

9.4 
8.9 
8.9 
10.4 
10.9 

10.4 
10.4 
14.4 
17.6 
14.4 

14.4 
13.0 
11.9 
10.9 
10.4 

9.9 
10.9 
9.9 
9.9 
11.9 

17.6 

20 

20 

16.4 

15.2 

13.0 


11.9 
11.9 
11.9 
10.9 
10.9 

11.9 
13.0 
13.0 
10.9 
8.9 

9.9 
10.4 
10.9 
10.9 
10.9 

9.9 
9.9 

15.2 

23 

28 

23 
15.2 
.0 
25 
23 

25 
20 
15.2 


16.4 
15.2 
13.6 
13.6 
14.1 

14.1 
23 

25 

28 
28 

18.8 
.0 
.0 
.0 
.0 

.0 
12.0 
12.0 
12.0 
12.0 

12.0 

12.0 

20 

22 

22 

22 
23 
23 
23 
23 
23 


23 
23 
23 
23 
23 

23 
22 
23 
23 
23 

23 
23 
23 
23 
23 

22 

21 

20 

17.5 

16.0 

'"i9."6' 
19.0 
19.0 
19.0 


16.0 
16.0 
15.0 
16.0 
16.0 

16.0 

16.0 

19.0 

20 

18.0 

19.0 
19.0 
16.0 
16.0 
14.0 

15.0 
15.0 
15.0 
15.0 
14.0 

14.0 
14.0 
13.5 
13.5 
13.5 

13.5 

13.5 

20 

20 

20 

18.0 


17.0 
14.0 
14.0 
13.0 
12.5 

12.0 
12.0 
11.0 
11.0 
10.5 

10.5 
10.0 
8.0 
8.0 
8.0 

8.0 
12.5 
9.0 
8.0 
20 

11.5 
9.0 
8.0 
8.0 
8.0 

7.0 
6.2 
6.2 
6.2 
6.2 


6.2 
5.5 
6.5 
5.5 
5.5 

5.0 
5.0 
5.0 
6.2 
5.6 

5.5 
5.5 
6.0 
4.6 
4.6 

4.0 
4.0 
4.0 
4.6 
4.0 

4.0 
3.6 
3.6 
3.6 
4.0 

4.0 
4.8 
4.5 
4.0 
3.6 
3.6 


5.0 
4.2 
3.9 
3.9 
4.2 

3.9 
3.9 
4.2 
3.9 
3.9 

3.9 
4.2 
3.9 
4.2 
4.6 

4.6 
4.6 
4.2 
4.2 
3.9 

3.9 
3.9 
3.9 
3.9 
3.5 

3.1 
3.1 
3.9 
3.5 
3.1 
3.5 


4.2 
3 9 


2 


3 


3 9 


4 


3 9 


5 


3.9 
3 5 


6 


7 


3.1 


8 


3 1 


9 




10... 




11 




12 




13 




14..,. 




15 




16 




17 




18 




19 




20 




21 




22 ... 




23 


....... 


24 




25 




26 




27 




28 




29 




30 




31 









Note. — No record Apr. 21-! 



Water turned out of canal for season on Sept. 9. 



Monthly discharge of Escondido Mutual Water Co's. canal near Nellie, Calif ., for 1896- 

1918. 



Month. 


Discharge in second- 
feet. 


Run-ofi 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 


Run-off 
(total in 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1896-97. 
October 


12.00 
19.45 
15.60 
35.05 
37.00 
40.85 
37.00 
8.60 


0.85 
3.10 
4.25 
6.95 

19.45 
5.50 

12.00 
2.05 




159 

274 

438 

997 

1,341 

1,424 

1,174 

210 


1899-1900, 
January 


21.45 
7.30 
15.60 
25.36 
31.20 


4.90 
3.60 
3.95 
3.10 
4.90 


!!!!!!!! 



498 


November 


February 

March 


351 
356 


January 


April 


438 


February 


May 


360 


The year 

1900-1901. 




April..*....!.!!!.' 


31.20 

.0 
21.45 
3.60 
25.35 
33.10 
25.35 
20.50 


.0 




2,003 




.0 
1.85 
3.10 
3.10 
12.00 
11.10 
14.70 











293 
66 
652 


The year 


40.85 


.0 




6,017 


November 

December 

January 


1897-98. 


12.00 
48.80 
37.00 
37.00 
13.80 


3.10 
5.50 
10.20 
9.40 
7.70 




392 
1,028 

917 
1,193 

351 


December 

January 


February 

March 


542 
846 


February 


April 


396 




The year 

1902-3. 

November 

December 

January 




April 


33.10 


.0 




2,795 


The year 


48.80 


.0. 





3,881 


6.50 
9.00 
25.35 
27.25 
27.25 
27.25 
27.25 


2.50 
2.00 
3.60 
5.50 

13.35 
5.50 

10.20 




26 
35 
352 


1898-99. 


6.95 
35.05 
39.00 
12.90 


3.95 
3.60 
4.25 
4.25 




158 
608 
717 
282 


January 


February 

March 


1,270 


February 


1,310 


March 


April 


1,014 


April 


May 


230 




The year.... 




The year.... 


39.00 


.0 




1,765 


27.25 


.0 




4,237 



SAK LUIS KEY RIVER BASIN. 



225 



Daily discharge, in second feet, o/Escondido Mutual Water Co. ^ s canal near Nellie. Calif., 
for 1896-1918— Gontinued. 



Discharge in second- 
feet. 



Maxi- 
mum. 



Mini- 
mum. 



Run-off 
(total in 
acre- 
feet). 



Discharge in second- 
feet. 



Maxi- 
mum. 



Mini- j 
mum. 



Run-off 
(totalia 
acre- 
feet). 



1904-5. 

March 

April 

May 

The year. 

1905-6. 

January 

February 

March . : 



The year... 

1906-7. 

October 

November 

December 

January 

May 

June 

July 



The year. 

1907-8. 
November. . . . 

December 

January 

February 

March 

April 

May 

June 



The year.. 

1908-9. 

November 

December 

January 

February 

March 

April 

May 

June 

July 



The year 

1909-10. 

January , 

February 

March , 

April 

May — 

June , 

July 

August , 



The year . . 

1910-11. 

December 

January 

February 

March 

April 

May 



The year 

1911-12. 

January , 

February 

March 

April , 



28.30 
28.30 
27.25 



25.35 
27.25 
27.25 



27.25 



7.70 
15.60 
25.35 
24. 30 
10.20 
10.20 

5.50 



25.35 



9.00 
13.35 
14.70 
12.00 
12.00 
12.00 
12.00 

7.70 



14.70 



6.95 
10.20 
19.45 
23.40 
23.40 
19.45 
10.20 
10.20 

2.55 



23.40 



13.00 
17.30 
17.30 
7.50 
7.50 
3.00 
1.20 
1.20 



17.30 



3.7 
19.5 
20.3 
20.3 
20.3 
16.5 



20.3 



12.30 
7.50 
18.00 



15.60 
27.25 
15.60 



10.20 
10.20 



3.10 
8.60 
12.00 
12.00 
4.25 
6.20 
5.50 



8.10 
9.80 
5.50 
5.50 
12.00 
7.70 
7.70 



6.20 
6.20 
5.50 
8.60 
9.40 
10.20 
10.20 
3.10 
2.05 



.0 



6.40 
11.70 
6.40 
6.40 
4.60 
1.20 



2.3 
3.0 
17.3 
17.3 
17.3 



5.4 
4.1 
11.0 
14.4 



1,138 

1,621 

676 



448 
L,192 



128 
64 
1,055 
1.53 
278 
504 
65 



2,247 



588 
612 
299 
432 
714 
622 
53 



77 
414 
544 
397 
852 
798 
627 
363 
101 



4,173 



502 
797 
754 
392 
395 
105 
32 



2,999 



166 

478 

543 

1,161 

1,151 



494 
305 

487 
458 



1911-12. 

May 

June 

The year 

1912-13. 

December 

January 

February 

March 

April 

May — 

The year 

1913-14. 

December 

January 

February 

March 

April 

May 

June 

The year 

1914-15. 

December 

January 

February 

March 

April 

May , 

June 

July 

The year 

1915-10. 

April 

May 

June 

July 

August 

September 

The year 

1916-17. 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year 

1917-18. 

October 

November 

December 

January 

February 

March 

April 1-20, 27-30.. 
May. . , 
June.. 
July... 
Augusi 



25.80 
6.40 



25.80 



4.90 
12.80 
19.30 
23.10 
21.50 

2.50 



23.10 



12.30 
39.70 
40.40 
42.70 
18.00 
29.70 
15.80 



42.70 



25. 80 
33.50 
33.50 
33.50 
16.50 
12.30 
22.60 
22.60 



33.50 



10 
5.5 



15 

22 

24 

26 

18 

15 

22 

19 
7.1 
6.3 

16 



18.4 
16.6 



23 

20 

20 
6.2 
5.0 
4.2 



6.4 
6.4 



2.10 
3.50 
6.10 
19. .30 
6,10 
1.90 



.0 



2.30 
3.70 
15.80 
24.20 
9.80 
8.60 
5.90 



3.50 
6.70 
24.20 
11.30 
12.30 
6.40 
6.40 
8.00 



.0 


24 
11 

5.2 

5.3 





12.2 

27.3 

16.4 
8.42 
6.82 
.837 



6.03 






11 

4.8 





3.5 
3.5 




10.7 
16.3 
21.0 
9.34 
9.57 
11.7 
8.73 
5.45 
4.25 
4.00 



.0 

.0 

8.4 

8.9 

.0 

.0 

16.0 

13.5 

6.2 

3.5 

3.1 

.0 



14.7 
13.8 
9.19 
12.2 
14.3 
15.6 
21.5 
16.1 
10.2 
4.64 
3.95 



1,332 
12 



Note.— No record for years 1901-2 and 1903-4. Flume destroyed by fire in 1903-4. No flow in months 
for which record is not given. 



142131°— 21^wsp 447- 



-15 



226 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN" CALIFORNIA. 

RINCON I2ffDIAN USSERVATIOSf DITCH NEAR VALLEY CEUTEB, CALIF. 

Location. — In sec. 35, T, 10 S., R. 1 W., in Rincon Indian Reservation, a])oiit 2,000 
feet below intake, and about 6 miles northeast of Valley Center, San Diego County. 

Records available. — 1912. 

Discharge. — Computed from gage heights giving head on 3-foot rectangular weir 
with end contractions. 

Coope'ration. — Record furnished by Indian farmer, Rincon Indian Reservation. 

The canal heads on the right bank of San Luis Rev River, and was in operation 
May 6 to June 30, 1912. The water is used for irrigation on the reservation. 

Daily discharge, in second-feet, of Rincon Indian Reservation ditch near Valleq Center, 

Calif. Jor 1912. 



Day. 


May. 


June. 


Day. 


May. 


.June. 


Day. 


May. 


June. 


1 




1.0 
1.0 
.8 
.6 
1.0 

.7 

.7 

• .8 

.7 

.7 


11 


0.9 
.9 
.9 
.9 

.8 

.9 
.9 
.9 

.8 
.8 


0.8 
.9 

.8 
.8 

.8 

.9 

.8 
.8 
.7 


21 


0.9 

1.0 
.8 
.8 

1.0 

1.0 
1.0 
1.0 

.9 
LO 

.0 


0.6 


2 




12 


22 


.6 






13 


23 


.8 


4 




14 ..,.„.. 


24 


.6 


5 




15 , . 


25 . 


.6 


6 




16 


26 ,. 




7 




17 .. 


27 




8 . 




18 


28 




9 




19 


29 




10 


0.9 


20 


30 , 








■•^1 













Note. — Canal in operation May 6 to June 30, 1912, but no record was furnished lor May 6-9. 
Monthly discharge of Rincon Indian Reservation ditch near 'Valley Center, Calif ..for 1912. 





Month. 


Discharge in second-feet. 


■Run-off 
(total in 
acre-feet). 




Maximum. 


Minimum. | Mean. 


May 10-31 


1.0 0.0 0.S6 
1.0 .4 .70 


38.5 


June ... 


41.7 









PALA INDIAN- RESERVATION CANAL AT PALA, CALIF. 

Location.— In NW. I SE. \ sec. 26, T. 9 S., R. 2 W., at sand l>ox three-fourths 

of a mile below intake, 300 feet above highway bridge, and half a mile southeast 

of Pala, San Diego County. 
Records available. — ^IVIay 22, 1912, to December 31, 1913 (incomplete). 
Gage. — ^Vertical staff'in sand box showing head on steel plate at outlet. 
Discharge measurements. — ^Made from foot plank across canal ])elow sand box. 
Accuracy. — Stage-discharge relation permanent. Rating curve well defined. Gage 

read to hundredths once daily. Daily discharge ascertained by applying daily 

gage height to rating ta]:>le. Records good. 

Intake of canal is on left bank of San Luis Rey River three-fourths of a mile above 
highway bridge at Pala. The water is used for irrigation and domestic supply on Pala 
Indian Reservation. 



SAN LUIS REY EIVER BASIN. 227 

Discharge measurements of Pala Indian Reservation canal at Pala, Calif. ^ for 1912-1913. 



1912. 
Feb. 13 
May 22 
June 15 



July 
Aug. 



Made by- 



F.C. Ebert. 
do. 



H. L. Davis. 
E. W. Case.. 
F.C. Ebert. 
E. W. Case.. 
F.C. Ebert. 
....do 



Gage Dis- 
height. charge. 



Feet. 

"b'.'zi' 



5.3 
4.2 
3.1 
2.7 
5.7 



Date. 



1913. 
Jan. 19 
May 9 
June 13 
July 25 
Aug. 31 
Oct. 6 



Made by— 



F.C. Ebert.. 

do 

do 

R.W.Day.. 
F.C. Ebert. 
do." 



Cage Dis- 
heiglit. charge. 



Feet. 
0.23 
.22 



Sec.-jt. 
l.G 
1.6 
5.7 
2.2 
3.3 
4.0 



Daily discharge, in second feet, of Pala Indian Reservation canal at Pala, Calif, for 

1912-13. 



Day. 


May. June. 


July. ! Aug. 

i 


Sept. 


Day. 


May. 


June. 


July. 


Aug. 


Sept. 


1912. 
1 


1 


2.5 
3.0 
2.3 
2.2 

4.0 

3.8 
4.0 


3.3 




1912. 
If, 






j 




2 


i 




17 




1.5 

6.7 
8.7 
7.5 


2.7 




3 










18 






4 .-.. 






2.8 




19 




3.4 

5.4 







5 








20 




3.3 




6 










21 







7 ... 








3.3 


22 


2.7 


7.1 
0.7 
6.4 
6.1 

5.4 
5.2 
5.1 
4.1 

7.4 


;::;::: 





8 









23 






9 






2.8 
3.3 


3.3 




24 






2.3 


10 









25 








11 . . 










26 




\ 




12 






4.1 






27 




4.5 


3.3 




13 










28 






14 












29 








15.... 




6.6 




3.8 




30 
















31 . 




















Day. 


Oct. 


Nov. Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sopt. 


1912-13. 
1 
















.6 

.6 
6.2 
6.2 
6.2 

4.8 

3.6 















2.4 

















I 



1.4 
1.4 


5.5 

4.8 
4.8 
4.8 

4.8 
4.2 


4.8 
4.8 
3.6 
4.8 
4.8 

4.8 

"'i.'e' 





5.5 
5.5 

4.8 

5.5 
5.5 
5.5 
5.5 

4.8 

5.5 
5.5 
5.2 


2.4 
2.4 
2.6 

""2." 4" 
2.4 
2.4 
2.4 

2.4 
2.4 
1.8 
2.4 
2.4 

1.8 
2.4 
3.6 
3.2 
3.6 

3.2 
3.6 
3.2 
2.4 
3.2 

3.2 
2.8 
3.0 
3.0 
3.0 
3.0 


3.0 
3.0 
2.6 
3.2 
3.2 

3.2 
3.2 
3.2 
3.2 
3.0 

3.2 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 

2.4 
2.4 
2.4 
2.4 
2.4 

2.4 
2.4 
1.8 
2.4 
2.8 
3.3 




2 










3.6 


2 4 


3 










2. 4 


4 












2 4 


5 












2.4 


6 










4.8 


2.4 


7 










2 4 


8 . 












2 4 


9 














10... 












2 4 


11.... 












2 4 


12 












2 4 


13 












2 7 


14 











2.4 






1 8 


15 














4.8 

4.8 
4.8 
5.5 
5.1 
5.1 

5.5 
5.5 
5.5 

4.8 
3.6 

3.6 
3.6 
3.6 
3.6 
3.6 


1 8 


16 
















2.4 


17.... 
















2 4 


18 






5.6 










2 4 


19 






1.6 








1.0 

1.0 










2! 4 


20 








6.2 

6.2 
6.2 
6.2 
6.2 
6.2 

6.2 


"I'.'b 

5.5 

5.5 
5.5 
5.1 
5.5 

4.8 
4.8 




21.... 










2 4 


22 











2 6 


23 








2.7 


24 










3 6 


25 










3 6 


26 








3.6 


3 


27.. 








2 8 


28 










3.6 


29 










3 


30 


3.3 












31 



























228 SUKFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Pala Indian Reservation canal at Pala, Calif , for 
1912-lS—Gojitiiiued. 



Day. 


Oct. 


Nov. 


Dec. 


Day. 


Oct. 


Nov. 


Dec. 


Day. 


Oct. 


Nov. 


Dec. 


1913-14. 
1 


3.6 
3.6 
3.2 
3.6 


4.8 
4.8 

"4.8 






0' 








1913-14. 
11 


4.8 
4.4 
4.8 
4.8 
4.2 

3.6 
4.8 
4.8 
4.4 
3.8 




























1913-14. 
21 


3.6 
3.6 
3.6 
3.6 
3.6 

4.8 
4.8 


















2 


12 


22 





3 


13 


23 





4 


14 


24. 





5 


15 


25 





6 


4.4 
3.6 
4.4 
4.8 
4.8 





16 . . 


26 





7 


17 


27 ... 





8 


18 


28 


a 


9 


19 


29 . ... 


4.8 
4.8 
4.8 





10 


20 


30 









31 












Note. — Daily discharge computed from 1 
whicli discharge is not shown. 



well-defined rating curve. No record reported for days for 



SAU LUIS REY DITCH NEAR SAN LUIS REY, CALIF. 

Location.— In SW. i NW. I sec. 3, T. 11 S., R. 4 W., half a mile below iotake and 
2 miles northeast of San Luis Rey, San Diego County. 

Records available. — April 8 to 19, 1913. 

Gage. — Vertical staff one-half mile below intake. 

Discharge measurements. — Made from bridge 400 feet above gage or by wading. 

Channel and control. — Sand and silt; not permanent. 

Accuracy. — Stage-discharge relation not permanent. The rating curve is defined by 
two measurements. Gage read to hundredths twice daily. Daily discharge as- 
certained by applying mean daily gage height to rating table. Records fair. 

Intake of ditch is on left bank of San Luis Rey River in Guajome grant, near north- 
west boundary, about a mile above intake of Libby ditch. This ditch was originally 
used by the Fathers of San Luis Rey Mission. It is now owned by a corporation and is 
used for irrigating about 1,200 acres of sugar-beet land. The irrigation season lasts 
only for a few weeks each year. 



Discharge measurements of San Luis Rey ditch near San Luis Rey, Calif. , for 1913. 



Date. 


Made by — 


Gage 
height. 


Dis- 
charge. 


Apr. 8 
19 


F. C Ebert 


Feet. 
0.83 

.27 


&c../,. 


H. D. McGlashan 


2.5 









Daily discharge, in second-feet, of San Luis Rey ditch near San Luis Rey, Calif., for 1913. 



Apr. 



9.7 

6.8 
4.7 
3.7 
2.6 

2.8 



Apr. 14 7.5 



15. 
16. 
17- 

18. 
19. 



12.7 
4.0 
2.2 
6.4 
4.0 



SAN LUIS KEY RIVER BASIN. 
MISCELLANEOUS MEASUREMENTS. 



229 



Measurements of discharge in the San Luis Rey River basin at 
points other than those at which gaging stations have been main- 
tained are recorded in the following table: 

Miscellaneous discharge measurements in San Luis Bey River drainage basin for 1894-1918. 



Date. 


Stream. 


Locality. 


Gage 
height. 


Dis- 
charge. 


May —,1894 
Oct — , 1894 


San Luis Rey River . 




Feet. 


See.-ft. 
6,720 


do 








Dec. 8, 1894 
Dec. 20,1894 


do 






10 


ao 






240 


Jan 15, 1895 


do 






5,000 
152 


Mar. 8, 1895 
Apr. 11,1895 
Apr. 17,1895 
May 10,1895 
May 19,1895 
Sept. — , 1899 
Aug. 15,1903 
May 21,1908 
Feb. 2, 1911 
Feb. 3, 1911 


. do . 






do 






100 


do 






72 


do 






39 


do 






19 


..do 






3 5 


do 


Warner dam site 




2.8 


do . 


do 




5 2 


do 


Float measurement at Warner dam site 




40 


do 


do 




138 


Feb 4, 1911 


do 


...do 




742 


Feb. 5,1911 
Feb. 6, 1911 
Feb. 7,1911 


do 


do 




130 


do . . 


...do 




78 


do 


do 




63 


Feb. 8,1911 
Oct. 7, 1916 
Nov. 18,1916 
Nov. 25,1916 
June 20,1899 


do 


do 




40 


do 


Just below Warner dam site 


1.12 
1.29 
1.31 


18 




do 


11 


do 


do. 


14 


do 


Above Headworks Escondido Mutual Water 
Co.'s Canal near Nellie. 
. -do 


1.0 


Aug. 19,1900 
Aug. 14,1903 


... .do 




2 


do 


do 




.5 


May 10,1914 
Aug. 14,1916 


do 


do 




18 


do 


do , 


1.40 
1.35 


4.5 


Sept. 13, 1916 
Nov. 22,1916 
Apr. 10,1912 


do 


do 


4.5 


do 


.. .do 


13 


do 

do 


S W 1 sec. 36, T. 10 S., R. 1. W. near Valley 

Center. 
do 


88 


May 2, 1912 
May 14,1912 




22 


do 


do 




■•4 


May 22,1912 
June 16,1912 
June 25,1912 
July 11,1912 


do. 


.. .do 




4 6 


do 


do 




6 4 


do, 


do 




4 


. do 


...do ... 




1 


Aug. 4, 1912 
July 20,1916 
July 31,1916 
Aug. 15,1916 
Sept. 14, 1916 
Oct. 10,1916 
Nov. 23, 1916 


do 


do 1 


O-l 


do.... 


do 


1 6 


do 


do 


1.3 


do 


do 


1 5 


. . do. 


do . 




4 9 


do 


do 




18 


do..,. 


... do ... 




17 


July 20,1916 
July 31,1916 
Aug. 15, 1916 
Sept. 14,1916 
Nov. 23, 1916 


do 


Opposite lower pumping plant at Rincon. . 
do 


9.00 
9.06 
9.06 
8.99 
9.04 


4.6 


do.. . . 


3 1 


do 

do 

do . 


do 

do 


2.5 
4 7 


do . 


16 


Sept. — , 1899 


do.. 




2.5 


Apr. 2, 1900 
July 20,1916 
Aug, 1, 1916 


... do 


. .. do 




10 


do..... 


Just above mouth of Pauma Creek 


LOO 

.94 
.94 

.85 


14 


do 


.... do 


- 6.1 


Aug. 15,1916 


do 


do 


6.1 


Sept. 14, 1916 
Oct. 11,1916 
Nov. 23, 1916 


do 

do 


do 

do 


7.7 
28 


do 


do 




24 


Jan. 27,1916 


do 


Just below mouth of Agua Tibia Creek near 

Pala. 
do 




675 300 


July 19,1916 
Aug. 1, 1916 


do 


LOO 
.96 
.90 


19 


do 


do 


15 


Aug, 15,1916 


do 


do 


12 


Sept, 14, 1916 


do 


do 


15 


Oct. 11,1916 


do 


do ... . 




43 


Nov. 23, 1916 


do 


do 




35 


Dec. 30,1917 
Aug. 16,1903 


do 


do 




17 


do 


Pala 




LI 



6 Computed from cross-sections and slope data by U. S, Indian Service. 



230 SURFACE WATEE OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Miscellaneous discharge measurements in San Luis Hev River drainage hasin, fw 
1894-1 9T8~Contmued. 



Date. 


Stream. 


Locality. 


Gage 
height. 


Dis- 
charge. 


July 19,1916 

Aug, 1,1916 
Aug. 15, 1916 
Sept. 14, 1916 
Oct. 11,1916 


San Luis Rey River . . 
do 


1,000 feet above TTnited States Indian Serv- 
ice pumping plant at Pala. 
do 


Feet. 


sec.,.. 
16 


.... do 


... do ..... 




12 


do 


do..., 




19 


do 

do 

do 

. .. do ^ . 


do.... 




41 


Nov. 24, 1916 
Jan. 13,1916 
Jan. 15 1916 


do 

1,000 feet above Pala bridge 


9."i6' 

8.7 


34 
67 


do 


217 


Apr. .19,1912 
Mar 13 1913 


do 

do 


Mission bridge, NE. i NW. I see. 8, T. 11 S., 
R. 4W. 
- do ... 


167 
41 


Aug. 5' 1916 
Aug. 16,1916 
Aug. 16,1916 
Sept. 15, 1916 
Aug. 5, 1916 


do 

do 


do 

do 


53. 06 


1.1 
5 


do 

do 


do 

do 


53. 05 


a 2.0 
& 3 1 


do 

do 

do 

do 

do 


Opposite center sec. 18, T. 11 S., R. 4 "W 




C.25 


Sept. 15, 1916 


Opposite center sec. 13, T. 11 S., R. 5 W... . 




d 


Aug. 5, 1916 


At Oceanside pumping plant 




d .0 


Aug. 5, 1916 


Half a mile above bridge at Oceanside 




d .0 


Apr. 18,1912 
Dee. 16 1917 


Mouth 




164 


do . 


Oceanside 


8.72 
9.26 


7 5 


Feb. 19|l918 


do„ 


do 


66 


Mar. 24 1918 


. do.... ... 


do.. 


45 


Apr. 23^918 
Jan. 9, 1913 
Feb. 5 1913 


do , 


do ., 


8.K2 
1.04 
L23 


13 


Canada Agiia Calient e. 
do , 




.3 


do .. 


2 


Sept. 25, 1913 
Oct. 17 1913 


do 


.. do... 


.2 


.. do.... 


do ... 




1 


Feb. 4, 1914 


do 


do 


L03 
.95 


.2 


Mar. 6 1914 


do 


. do . . .. 


1.0 


Mar. 24' 1914 
May 9, 1914 
May 9,1914 
May 22,1914 
June 15,1914 
July 11,1914 
July 22,1915 
Sept. 25, 1913 
Oct. 14,1913 
Jan. 9, 1914 
Jan. 30,1914 
Mar. 25,1914 


do 


do. 


.4 


.....do.. 


do 




,4 


do . 


. do 




6 


do 

do 


do 

. .. do 




.2 
9 


do 


do ... 




.1 


do 


.... do,... 




.4 


Big Lake Creek 

do 


About 2 miles west of Warner S])rin£j5 

.... do ...t 


1.95 
1.97 
2.03 
2.00 
2.07 
2.11 
2.18 
2.23 

2.56' 


.02 

.02 


do 


. do 


.06 


do 


do ... 


,1 


do..,. 


do,... „... 


.09 


Apr. 14,1914 
May 8, 1914 
Oct. 16,1914 
Apr. 19,1915 
June 28,1915 


do.... 

do 


do.. 

do 


.04 
.05 


do 

do 

do 


do , 

do, 

do 


.1 

.65 
.05 


Feb. 3, 1913 


Buena Vista Creek 

.... do.. 


Monkey Hill, about 6 miles southwest oi 

"Warner Springs. 
... do 


1.0 


May 13,1913 
Sept. 2,1913 
Sept. 9,1913 
Jan. 9, 1914 
Jan. 30,1914 
Feb. 4, 1914 
Mar. 25,1914 





.1 


do 


do .. - 




.02 


do.... 


do 




.02 


. . do 


do 




.09 


do 


do .. 




.2 


do 


.... do, 


L80. 
L73 
1.70 


.3 


do.... . . 


do 


.'09 


Mav 8, 1914 
July 11,1914 
Mar. 13,1915 


do 


do 


.02 


do 


. . do 


.02 


do. 


do 


1.S5 


1,3 


Apr. 19,1915 
June 28, 1915 
Apr. 25,1914 
May 14,1914 
May 28,1914 
Aug. 14,1916 
Sept. 13,1916 
Oct. 7, 1916 
Nov. 22,1916 
Aug. 14,1916 

Aug. 14,1916 
Sept. 13, 1916 

Oct. 8, 1916 


do 


do.. 


.3 


do.,.. . 


do. 


1. 63 


.05 


Lusardi Creek 

do 


About 4 miles below Warner dam site , 

do . .. 


L3 

.7 


do 


.... do 




.5 


La Jolla Creek 


Above diversion at mouth of canvoii 


1.00 
1.00 
1.00 
1.03 
.10 

1.10 


1.8 


do 

do 


do 

do 


1.2 

1.9 


..do 


do 


1.3 


Potrero Creek 

do 

East Fork of Potrero 

Creek. 
do 


Below west ditch and above east ditch near 

La Jolla. 
At Rincon-La Jolla road crossing 


.3 
.2 


Above both diversions near La Jolla 


.9 


^do 


.15 


.98 



a Includes 1.5 second-feet flowing in Libby ditch. No surface flow between head of Libby ditch and 
quarter of a mile above Mission bridge, Aug. 17-21 . Flow at bridge reduced to 0.25 second-foot by evening. 
6 No diversion by Libby ditcli for about 3 weeks. 
c Estimated. 
d Stream dry. 



SAN LUIS KEY EIVER BASIN. 



231 



Miscellaneous discharge measurements in San Luis Rey River drainage basin for 
1894-1918— Conthmed. 



Date. 


Stream. 


Locality. 


Gage 
height. 


Dis- 
charge. 


Nov. 22, 1916 

Sept. 13,1916 
Sept. 13, 1916 
Aug. 14,1916 
Oct. 8,1916 


East Fork of Potrero 
Creek. 

do 

do 

West Potrero ditch.... 
do 


Abo/e both diversions near La JoUa 

\bove dam and below west ditch 


Feet. 
0.13 

.10 


Sec.-ft. 
O.S 

.5 


BeJow both diversions 


.2 


Intako 




,6 


Above darn 




.04 


Nov. 22,1916 


. .do 


do 




.08 


Aug. 14,1916 

Sept. 13, 1916 
Oct. 8, 1916 


^Vest Fork of Potrero 
Creek. 

do 

do 


High >vav crossing near La JoUa 


1.00 

.94 
1.03 
1.02 


04 


do 


-07 


do 


.13 


Nov. 22,1916 


do 


do 


.08 


Aug. 14,1916 
Sept. 13, 1916 
Nov. 22,1916 


Cuca Creek 

. . do 


Mouth 


.08 


do 




.06 


do 


do 




.1 


Mav 10,1914 


Escondido Mutual 

Water Go's, canal. 
Paradise Creek 

do 


150 feet below weir at intake 




17.5 


July 20,1916 
July 31,1916 


Road crossing above E. M. W. Co's. power 

house. 
do 


.57 

.30 
.17 
.07 
1.17 
1.06 


b3.1 

2.1 


Aug. 15,1916 
Sept. 13,1916 


. . do . . 


do 


2.5 


do 


do 


1.4 


Oct, 10,1916 


... .do 


do 


1.5 


Nov. 23,1916 


do 


.. do . 


1.0 


July 20.1916 


East Fork of Spark- 
man Creek. 
do 


Pala-Rincon road crtBsLag 


-4 


July 31,1916 


do 




.4 


Aug. 15,1915 


do 


do 






Sept. 13, 1916 


. do 


do 




.2 


Oct. 10,1916 


do 


do 




2.5 


Nov. 23, 1916 


do. . - 


do 




1.1 


July 20,1916 


Middle Fork of Spark- 
man Creek. 
do. . . 


do 




b.05 


July 31,1916 


do ... 




09 


Aug. 15,1916 


do 


do 




b .05 


Sept. 13, 1916 


do 

do 


do 




.09 


Oct. 10,1916 


do 




06 


Nov. 23, 1016 


do 


do 




.05 


July 20,1916 


West Fork of Spark- 
man Creek. 
do 


do 




1.1 


July 31,1916 


do 




.5 


Aug. 15,1916 


do 


do. .. . 




1 1 


Sept. 13, 1916 


do 

do 


do 






Oct. 10,1916 


do 




1.3 


Nov. 23, 1916 


do 


do 






Sept. 13, 1916 


Ditch 


Diverts from West Fork of S^^arkman Creek 




.1 


July 20,1916 


do. . 


Diverts from Salmon's Spring 




3 


July 31,1916 


do 


do 




.1 


Aug. 15,1916 


do. .' 


....do 




09 


Sept. 13, 1916 


do 


do 




.1 


Oct. 10,1916 


do 


do 




.02 


Nov. 23,1916 


do 


do 




.0 


July 20,1916 


Nigger Canyon Creek. . 
do. . . . 


Pala-Rincon road crossing 


1.00 
1.00 
.97 
.93 


.4 


Aug. 1,1916 


do. .. 


4 


Aug. 15,1916 


do 


do 


.4 


Sept. 14, 1916 


do 


do. . . 


.2 


Nov. 23, 1916 


do 


do 


.21 


Feb. 12,1912 


Pauma Creek 


One-half mile a]>ove Pauma Indian Reserva- 
tion reservoir. 
County highway bridge near Pala 




1 ^ 


Apr. 20,1912 
May 2, 1912 


do 




22. 


do 


do 




6 6 


May 22,1912 


do 


do 




4.1 


June 15,1912 


do 


do 




c .0 


July 11,1912 


do.. 


1,500 feet above intake for Pauma Indian 
Reservation canal, about 2 miles above 
county highway bridge near Pala. 

County highwav bridge near Pala 




1 9 


Do 


do 




e 


Jan. 19,1913 


do 


Near county highway ford on road from Pala 
to Pauma Indian Reservation. 

do 

do. ... 






Apr. 18,1913 
May 19,1913 


do 

do 


.96 


8.5 
c .0 


Jan. 24,1914 


do 


Near Pala 


.73 


2 2 


Apr. 25,1914 


do 


do 


10 


May 14,1914 


do 


do . 




3 6 


May 28,1914 


do 


do 




1.2 


July 20,1916 


do 


Just ]>elow intake of ditch 




4.0 


Aug. 1, 1916 


do 


do 


1.00 


4.6 



a Sinks into sand before reaching river. 



c stream dry. 



232 SURFACE WATER OF PACIFIC SLOPE^ SOUTHERN CALIFORNIA. 



Miscellaneous discharge measurements in San Luis Rey River drainage 
1894-1918— Qontumed. 



for 



Date. 


Stream. 


Locality. 


Gage 
height. 


Dis- 
charge. 


Aug. 15,1916 
Sept. 14, 1916 
Nov. 23,1916 
Jan. 13, 1916 


Pauma Creek 


Just below intake ditch 


Feet. 
0.92 

1.02 


Sce.-ft. 
a 2. 6 


do 


do 


2. 1 


do 

do 


do. 


3.5 
4.9 


Jan. 15, 1916 


do 

.. do 


do 




22 


July 20,1916 
Oct. 11,1916 


do . 


1.00 


1 3 


do 


do 


3.2 


July 20,1916 
Aug. 1,1916 
Aug. 15,1916 
Sept. 14,1916 
Nov. 23,1916 
July 20,1916 
Aug. 1,1916 
Aug. 15,1916 
Sept. 14,1916 
Oct. 11 1916 


Pauma ranch ditcL.. 
do 


Intake 




1.4 


do 


1.3 
1.03 
1.04 


3.0 


do 


do 


1.5 


do 


do 


1.4 


do 


do . 


.78 


Fre7 Creek 






.4 


do 


.do 




.2 


do 


do . 




.2 


do 


.....do 




1.0 


do. ... 


. do. . 




1.3 


Nov. 23,1916 


do 


do 




.53 


Aug. 15,1903 
Oct. 9,1903 
Mar. 29,1912 
Apr. 20,1912 
July 19,1916 
Aug. 1, 1910 


Sicklers ditch 


Bidder's ranch near Pala 




2.1 


do 


do 




2.1 


Agua Tibia Creek 

do 


Near mouth in sec. 3i, T. 9 S., R. 1 W 




1.3 


do . . 




2.7 


do 

do 


Above intake of ditch at mouth of canyon. . . 
do 


.48 
.50 
.43 
.27 
.67 


&2.6 

b2.2 


Aug. 15,1916 
Sept. 14,1916 
Nov. 24,1916 
Jan. 13, 1916 


do 

do 

do 


do . 


c2. 1 


do 

do 


dl.7 
2.3 


do. .. 


Pala-Rincon road crossing 


.6 


July 19,1916 


do 


do 




«.02 


Oct. 11, 1916 


do 


do 




c2 


July 19,1916 


Marion Creek 


Above diversion at mouth of canyon 

do 


1.00 
1.00 
.97 


.4 


Aug. 1, 1916 
Aug. 15,1916 


do 


.4 


do 


do 


.2 


Sept. 14, 1916 
Nov. 24,1916 
July 19,1916 
Aug. 1 1916 


do 


do 


.3 


do 


do 




.37 


do 


Pala-Rincon road crossing 




e.2 


do 


do 




.3 


Oct. 11,1916 


do 


do 




1.1 


Aug. 15,1916 

Sept. 14,1916 
Nov. 24-, 1916 


West Fork of Marion 

Creek. 
do 


Mouth 




«.03 


do 




C.04 


do 


do 




.05 


July 19,1916 
Do 


McGee Creek 


Highway crossing east of Pala 




g .0 


Jennie McGee Creek. . . 
Little Temecula Creek. 
Morena ditch 


Highway crossing at Pala 




g .0 


Do . 


Highway crossing west of Pala 




C.07 


June 26,1912 
July 12,1912 
Aug. 4,1912 
Dec. 18,1912 
Feb. 20,1913 






2. 1 


do 


do 




1.2 


.do 


do 




.9 


do 


do :.... 




.4 


do 


do 




.2 


Mar. 13 1913 


do 


.. do ....... 




.3 


May 9^ 1913 
June 13 1913 


do 


do 




2.1 


do . 


.. . do 




.8 


Oct. 6,' 1913 

July 19,1916 

Do.'.. 


do 


do 




.25 


Monserate Creek 

Falibrook Creek 

Moosa Creek 






g .0 


Mile north of Bonsall . . 




e.05 


Jan. 27,1916 


At daminNW. |sec. 1 T. 11S.,R.3 W., .. 




/S,346 
.9 


Jan. 13,1916 


do 


half a mile below South Fork. 
Mouth 




July 19,1916 
Do-. 


do 


do 




e.02 


Gopher Creek 


Highway crossing southwest of Bonsall 




e.02 


May 3, 1912 
Do 


San Luis Rey ditch... 
Libby ditch 


One-half mile below intake, SW. i NW. \ 

sec. 3 T. 11 S., R. 4 W. 
Near intake, NE. \ NE. \ sec. 4 T. 11 S., R. 

4 W., 2 miles northeast of San Luis Rey. 
do 


1.34 
.96 
1.43 
1.01 


2.4 
1.6 


Jan. 17,1913 


do 


«3.2 


Feb. 1 1913 


. do 


do 


.4 


Apr. 8, 1913 
Do 


do 




1.8 


do 


.. do 


.3 


Apr. 19,1913 
Aug. 5,1916 


do 


do . - 


g .0 


do... 






2.0 











a All diverted at about half a mile below. 

b All diverted by ditch. 

c All diverted except about 2 miners inches. 

d Most of water diverted but spilled back halfAvay down the ditch. 

e Estimated. 

/ Computed by J. F. Covert. 

g Stream dry. 



SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 233 

SANTA MARGARITA RIVER BASIN. 

GENEBAL FEATURES. 

Temectila Creek, as Santa Margarita Kiver is kno^vn at its begin- 
ning, rises on the western slope of the San Jacinto Mountains in the 
northwestern part of San Diego County just north of the San Luis 
Key drainage basin, flows north into Riverside County, then west 
about 15 miles to Temecula, where it flows southwest through 
Temecula Canyon into San Diego County and empties into the Pacific 
Ocean as Santa Margarita River. The highest elevation in the basin 
is about 5,500 feet, on the divide between Temecula and San Luis 
Key. Temecula Creek has few tributaries, and the topography is 
rather broken, though there are several small valleys in the upper 
reaches. The rock formation through which it flows is a loose granite 
with good soil covering, and there is considerable growth of small, 
scrubby timber. The annual precipitation ranges from 10 to 30 
inches and occurs almost entirely as rain. The discharge is heavy 
in the spring during the flood season, but is small during the rest 

of the year. 

GAGING- STATION RECORDS. 

TEMECULA CREEK NEAR TEMECULA, CALIF. 

Location. — In Temecula grant, at highway bridge on road from Temecula to Fall- 
brook and Pala, 1^ miles south of Temecula, San Diego County. 

Drainage area. — Not measured. 

Elevation. — About 1,000 feet above sea-level. 

Records available. — ^January,! to December 31, 1906 (gage lieiglits only.) 

Gage. — Vertical staff fastened to downstream pier on right bank. 

Discharge measurements. — ^IVIade from highway bridge or by wading. 

Channel and control. — Sand; continually changing; usually in two channels 
during low stages. Both banks are high and not likely to be overflowed. 

Daily discharge has not been computed on account of small number of discharge meas- 
urements made at times of excessive changes in channel. 

Discharge w.easurements of Temecula Creek near Temecula, Calif., for 1905-1908. 



1905. 
Nov. 14 
Dec. 30 

1906. 
Jan. 12 
29 
Feb. 10 



Mar. 



Made by- 



W. B.Clapp 

W.V.Hardy 

W.V.Hardy 

!!]!do;;!;!!;!;;;!;;];! 

....do 

....do 

....do 

..-.do 

....do 



Gage 
height. 



Feet. 
3. ID 



2.90 
2.94 
2.99 
3.20 
3.49 
3.42 
3.82 



Dis- 
charge. 



Sec.-ft. 
5.8 



4.4 
4.9 
4.4 
3.3 
6.0 
5.4 
16.8 
12.0 



1906. 
Apr. 13 
27 
May 15 
June 26 
Aug. 5 
Oct. 10 
Nov. 12 
Dec. 4 
29 

1908. 
July 12 



Made by— 



'. V. Hardy. 

.-do 

-do- 



C. H.Lee , 

R. S. Hawley. 
W. F.Martin. 
W.V.Hardy-. 

do 

do 



Gage 
iieight. 



Feet. 
5.84 
5.82 
5.88 
5.80 



Dis- 
charge. 



Sec.-ft. 
12.1 
5.6 
6.4 
2.6 
.8 
3.9 
7.6 
7.2 
14.9 



234 SURFACE WATER OF PACIFIC SLOPE, SOUTHERl^ CALIFORl^IA. 

Daily gage height, in feet, of Teynecula Creel: nmr Temecula, Calif., for 1906. 



Apr. 



May. 



July. ' Dec. 



2, 
3. 
4, 
5 

6. 
7. 
8. 
9. 
10. 

11 
12. 
13. 
14. 
15. 

16. 
17. 
18. 
19. 
20. 

21. 
22. 
23. 
24. 
25. 

26. 
27. 
28. 
29. 
30. 
31. 



3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
2.9 



2.9 

2.9 
2.9 



2.9 


2.9 


2.9 


3.1 


3.0 


3.0 


3.0 


3.0 


3.0 


3.0 


3.0 


2.9 


2.9 


2.9 


2.9 


2.9 



2.8 
2.8 
2.8 

2.8 
2.8 
2,9 
2.95 
2.95 

3.0 
3.0 
3.0 
3.0 
3.0 

3.2 
3.2 
3.25 
3.25 
3.25 

3.25 
3.25 
3.25 
3.25 
3.25 

3.3 
3.4 



3.4 
3.0 
3.5 
3.45 
3.45 

3.5 
3.5 
3.55 
3.5 

3.6 

3.9 
4.9 
5.0 



3.7 
3.7 
3.65 



3.3 
3.4 
9.6 



7.6 
6.0 
5.5 
5.5 
5.9 
5.9 



5.9 

5.8 
5.8 



5.8 
5.8 

5.8 



5.8 
5.75 

5.75 

5.75 
5.75 
5.75 
5.75 
5.75 

5.75 



5.75 
6.75 



5.75 

5.7 
5.7 
5.7 
5.75 

5.75 
5.75 
5.75 
5.75 

5.75 

5.75 
5.7 
5.7 

5.7 
5.7 

5.8 
5.85 
5.85 
5.85 

5.85 

5.85 
5.9 
5.9 
5.85 
5.85 

5.9 
5.85 
5.8 
5.8 
5.8 
5.8 



5.8 
5.8 
5.8 
5.8 

5.8 
5.8 
5.8 
5.8 
5.8 

5.75 

5.7 
5.75 
5.8 
5.75 

5.75 
5.75 
5.75 
5.75 

5.75 

5.75 
5.75 
5.75 
5.75 
5.75 

5.8 
5.8 
5.8 
5.8 



5.8 

5.8 
5.8 

5.8 

5.8 
5.8 
5.8 



5.8 
5.8 



5.8 
5.8 



6.0 
6.0 
6.0 

6.0 
5.9 
5.9 
5.9 
5.9 



6i0 
5.9 
5.9 

5.95 
6.0 
6.0 
6.9 
5.9 



5.9 
5.95 
5.9 



6.2 
6.0 
6.2 
6.05 
6.1 
6.25 



Note.— No gage-height record was kept from July 18 to Dec. 2, 1906. 

MISCELLANEOUS MEASUBEMENTS. 

Measurements of discharge at points in the Santa Margarita River 
basin and nearby drainage other than those at which gaging sta- 
tions have been maintained are recorded in the following table: 



Date. 


Stream. 


Locality. 


Gage 
height. 


Dis- 
charge. 


Nov. 14, 1905 


Temecula Creek 

do .. . 




Feet. 


Scc..ft.^ 


July 11,1915 

Mar. 10,1914 
May 8,1914 
Feb. 13,1917 
Mar. 7,1917 


Paube grant, just below junction with 

Arroyo Seco, in Nigger Canyon. 
Old gaging station near Temecula 




2.4 


. ..do 


7.60 


10 


do 


do . . 


9.1 


do 






14 


do 


do 




26 


27, 1917 
June 3,1918 
Dec. 1,1915 


do 


do 




15 


do 


. . . do 




8.4 


do 


At head of Temecula Canyon 




In 


Sept. 26, 1915 
July 11,1915 

May 8,1914 
Dec. 1,1915 


do 


2h miles above railway station at Fallbrook. 
Just above junction with Temecula Creek at 

Nigger Canyon, Pauba grant. 
300 feet above mouth 




3.6 






.1 


Murrieta Creek 

-do . 




1.2 


Near mouth 




1.1 


Feb. 13,1917 


do 


do 




2.1 


Mar. 7, 1917 

27, 1917 

June 3, 1918 


do 


..do 




3.5 


do 


do 




1.7 


do 


do 




.8 


May 24,1899 








1.08 













SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 235 

SANTA ANA RIVER BASIN. 
GENERAL PEATUItES. 

Of the three important streams that traverse the valley of southern 
California — Santa Ana, San Gabriel, and Los Angeles rivers — the 
Santa Ana is the largest. Its drainage basin, lying south of the 
San Bernardino Mountains and the Sierra Madre and taking waters 
from their southern slopes, is the most eastern and comprises b}^ 
far the largest area, including the northern part of Orange County, 
the northwestern part of Riverside County, and the southwestern 
part of San Bernardino County. Of the total drainage area, compris- 
ing between 1,800 and 1,900 square miles, about two-thirds is in 
the valley, but only a few hundred square miles yields much run-off. 

The Santa Ana rises in the heart of the San Bernardino Mountains, 
about 30 miles east of Highland, and flows westward for about 25 
miles to the mouth of its upper canyon; thence southwestward 
across San Bernardino Valley, through the lower canyon in the 
Santa Ana Mountains, and across the coastal plain to the Pacific 
Ocean at Newport Beach. Although the course of the stream meas- 
ures about 100 miles, there is continuous surface flow from mountain 
to sea only during winter floods. 

Many small streams from the southern slope of the San Bernardino 
Mountains and a few from the Sierra Madre west of the Cajon Pass 
flow toward the Santa Ana, but some of these discharge water to 
the main stream only in the flood seasons, the ordinary flow either 
being diverted or sinking into the sand and gravel of San Bernardino 
Valley. The principal tributaries are Bear, Alder, Mill, Lytle, and 
Chino creeks. 

Altitudes in the Santa Ana drainage area range from a few feet 
above sea level on the coastal plain to 2,000 or 3,000 feet on the 
Santa Ana Mountains, 500 to 1,200 feet in the San Bernardino basin, 
and 2,000 to 11,000 feet on the southern slope of the San Bernardino 
Mountains. The more elevated regions are rough and rugged, and 
the mountain sides are incised by many canyons which are the result 
of active stream erosion. The rocks are granitic. The mesa and 
valley lands at the base of the mountains are composed of granitic 
gravel and sand of great depth. The higher mountain slopes sup- 
port considerable timber; the lower slopes are as a rule covered with 
brush and grass. 

The mean annual precipitation varies considerably in different 
parts of the Santa Ana basin. On the coastal plain west of the 
Santa Ana Range it averages 10 inches or more; eastward, in the 
San Bernardino Valley, it amounts to 10 to 16 inches. On the 
mountain slopes it ranges from 20 inches at the base to 40 inches or 
more near the crest, and in Bear Valley north of the highest peaks, 
such as San Bernardino and San Gorgonio, it may be even 50 inches. 



236 SURFACE WATEE OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Considerable snow falls in the region of these high peaks in winter 
and remains well into the summer, especially on the northern slopes, 
from which the headv/aters of the Santa Ana come. 

Irrigation in the valleys of the Santa Ana basin has attained a very 
liigh state of development. Probably no other stream of its size in 
the United States is made to serve greater or more varied uses. To 
begin with, a portion of the flow is regulated by artificial storage in 
the upper part of the basin, and the water passes successively through 
three hydroelectric plants before reaching the mouth of the canyon. 
On leaving the lower plant it is turned into high-level canals and used 
for municipal supply and irrigation about Redlands and Highland. 
The irrigation water that escapes through seepage to the body of 
ground water is recovered from springs and flovvdng vfells and from 
pumped wells and is used for irrigation around San Bernardino and 
Riverside, the power for pumping being generated on the upper 
reaches of the stream. Bedrock obstructions at Riverside Narrows, 
below the city of Riverside, force to the surface a part of the water 
in the gravel bed of the stream above this point. Only a few miles 
below it is again diverted and used for irrigation on the coastal plain 
in the vicinity of Santa Ana and Anaheim. The seepage water from 
irrigation is once more recovered by numerous pumping plants and 
flowing wells on the lower coastal plain west of Santa Ana. It is thus 
evident that the same v/ater, in passing from mountain to sea, a dis- 
tance of not more than 1 00 miles, may be used at least seven times 
for power and irrigation. In like manner the water in many of the 
tributaries may be used several times before reaching the main stream. 

GAGING-STATION KECOPvDS. 
SANTA ANA RIVER NEAR MENTONE, CAUF. 

Location. — In SW. I sec. 4, T. 1 S., R. 2 W., near mouth of canyon, one-fourth 
mile above Southern California Edison Co.'s plant, one-half mile above mouth 
of Deep Creek, and 3| miles northeast of Mentone, San Bernardino County. Pre^ 
vious to October 1, 1914, station was maintained just above ford above V/arm Spring 
Canyon, IJ miles above present site. 

Drainage area. — 189 square miles (measured on topographic map); 182 square miles 
at original site above Warm Spring Canyon. 

Elevation. — About 1, 900 feet above sea level. 

Records available. — July 1, 1896, to September 30, 1918. 

Gage. — Gurley graph water-stage recorder with concrete well and house on left bank, 
one-fourth mile above power house; installed September 3, 1917. (See PL XI, ^.) 
Vertical staff, at same site and datum was read February 11, 1916, to September 2, 
1917. (See PL X, B, p. 61.) October 1, 1914, to January 17, 1916 (when vertical 
staff was destroyed by flood), gage was maintained at different datum, 10 feet above 
water-stage recorder. Original staff was on leit bank 100 feet above ford above 
Warm Spring Canyon. November 9, 1898, gage was moved downstream to a site 
800 feet below mouth of Warm Spring Canyon. After January 1, 1901, original 
staff was again read. Gage datum was lowered June 30, 1903, and new datum 
maintained until January 1, 1910, when all station equipment was destroyed by 
flood. January 23, 1910, new inclined staff was installed on left bank, 50 feet 










^ar-t.^s" .' , . 












1 


^^^BBBJBPsl'^jIB 






ba '"': 





"^ 9 










SANTA ANA RIVER BASIN. 



237 



above former site, at a new datum. February 25, 1910, a vertical staff was installed 
on right bank, 100 feet above ford, apparently at a new datum. This gage was 
read until October 1, 1914, when station was moved downstream to present site. 

Discharge measurements. — Made from cable at gage, from highway bridges near 
station, or by wading. At original station cable was between gage and ford. 

Channel and control. — Gravel and boulders; shifting during high water. Veloci- 
ties are very high during flood stages and large numbers of boulders are moved 
downstream. 

Extremes op discharge. — 1896-1918: Maximum stage not known, as gage was de- 
stroyed by flood January 17, 1916; maximum discharge January 27, 1916 (discharge, 
29,100 second-feet); minimum stage, 2.3 feet during parts of every month from 
October, 1913, to January, 1914 (discharge, 0.6 second-foot). 

Diversions. — The intake of the Southern California Edison Co.'s canal is at its plant 
No. 2, 2i miles above the gage. From the tailrace the water is carried across 
Santa Ana River and used for irrigation. The Greenspot pipe line originally di- 
verted water for irrigation below original station, but since 1903 it has been sup- 
plied from the power canal. September 7, 1911, its intake was changed to the 
forebay at Mentone power house. The record of combined discharge of river and 
canals did not include this diversion from the power canal until intake was estab- 
lished at forebay. 

Regulation. — Water is stored on Bear Creek at Bear Valley reservoir. Southern Cali- 
fornia Edison Co.'s power plants Nos. 1 and 2 are 5iand 2| miles, respectively, 
above the Mentone plant at the mouth of the canyon. 

Accuracy. — Stage-discharge relation generally permanent except during high stages. 
Rating curves have usually been fairly well defined. Gage read to tenths or half 
tenths once daily; in 1916 and 1917 read to hundredths. Daily discharge ascer- 
tained by applying gage height to rating table, or for short periods not covered by 
rating tables, computed by shifting-control method or estimated from discharge 
measurements. From 1901-1904 discharge was measured over weirs at head of 
canals except for the period, January 1 to May 31, 1901; February 26 to April 23, 
1902; and January 1 to 22, 1903. Records fair. 

Discharge measurements oj Santa Ana River near Mentone, Calif ., for 1896-1918. 



Made by- 



Gage 
height. 



Dis- 
charge. 



Made by- 



Gage 
height. 



Dis- 
charge. 



June 20 
July 28 
Nov. 21 



Jan. 27 
Mar. 4 
May 3 
4 
June 15 
July 5 
July 6 
Aug. 8 
31 
Sept. 30 
Nov. 14 



Jan. 8 
Mar. 9 
Apr. 11 
29 
June 12 
July 23 
Sept. 8 
Oct. 18 



J. B. Lippincott. 

J. H. Quinton 

J. B. Lippincott.. 



J. B. Lippincott.. 

do 

do 

do 

do.. 



A. Q. Campbell. 

do 

....do 

....do 

....do 

....do 



J. B. Lippincott.. 

H. Crowe 

J. B. Lippincott.. 

do 

...-do 

....do 

do.. 



F. H.Olmsted.. 



1.45 
1.60 
1.50 
1.15 
1.20 
1.11 
1.32 
1.35 
1.13 
1.25 



1.00 
1.05 



1.10 
1.10 
1.05 
.95 



Sec.-ft. 
61.8 
59.7 
31.7 



43.6 
lOi 



64 
72 
60 
55 
60 
43 
40 



26 
44 
32 
30 
35 
42 
35 
23 



Nov. 
Dec. 



Jan. 12 
Feb. 18 
Mar. 23 
May 6 

31 
June 15 
July 15 

27 
Aug. 24 

1900. 
Apr, 14 
May 5 
July 13 
Nov. 20 

1901. 
Feb. 5 

23 
Mar. 4 

30 
July 6 



F.H.Olmsted., 



S. G. Bennett. 

do.... 

do.. 

do.. 

do.. 

do.. 

do...., 

do.. 

do.. 



S. G.Bennett.. 

....do 

...-do 

....do 



S.G.Bennett. 

....do 

....do 

....do 

....do 



Feet, 
a 2. 10 
2.13 



2.34 
2.16 
2.30 
2.45 
2.27 
2.21 
2.30 
2.30 
1.85 



2.25 
4.35 
2.35 
3.30 



1.70 
1.35 
1.15 



Sec.-jt. 
22 
25 



38 

28 

30 

25.8 

21 

19.6 

25.9 

23.6 

10.9 



22.7 
244 

22.3 
102 



101 

110 

102 
40.6 
26.1 



a New gage installed 800 feet below mouth of canyon. 
6 Station moved back to old gage Jan. 1, 1901. 



238 SUEFACE WATER OP PACIFIC SLOPE, SOUTHERK CALIFORNIA. 

Discharge measurements of Santa Ana River near Mentone, Calif ., for 1896-1918 — Con. 



Gage 
height. 



Dis- 
charge. 



S. G. Bennett.. 

do 

do 



S. G.Bennett.. 

do 

---.do 

W. B.Clapp... 
S. G. Bennett.. 



W. B.Clapp. 
— do.... — 
..-.do 



Clapp and Clausen 

W. B.Clapp 

do 



....do 

..do.. 



Clapp and Murphy. 
W. B.Clapp.. 

...do 

...do 

...do 

...do 

do. 



E.G. LaRue. 



Clapp and LaRue 
E. C. LaRue 



-do 

.-do 

.-do 

...do 

.do. 

.do. 



R. S. Hawley. 
do 



.-do., 
-do.. 



..do-. 
..do.- 



C. H.Lee 

...do 

...do 

...do 

.-.do 

.--do 

...do 

...do 

...do 

...do 

...do 

M. P. Beeson . 

--.do 

--.do 

..-do 

do.. 



C. H. Lee 

M. P. Beeson . 

do 

do 

do 

do.. 



R, S. Hawley. 
W.F.Martin. 
..--do 



W. F. Martin . . 

do 

do 

do 

W. B.Clapp... 



Feet. 
L24 
L25 
1.03 



1.30 
7.00 
3.30 
2.50 
1.10 
.85 
.20 



L15 
L25 
1.10 
1.65 
1.38 
1.25 
1.40 
1.45 



3.82 
3.95 
4.1 
4.65 
3.35 



'ec-ft. 
30. S 
32 



37 
4,906 
1,068 
565 
132 
95 
56 



24 
16 
21 
24 



10 
17 
10 
11 
188 
138 
132 
113 
81 



79 
4 
3 



2. 17 


87 


1.51 


11 


I. 57 


15.8 


1.54 


12.8 


1.45 


6.7 


3.50 


351 


5.40 


1,410 


5.80 


1,870 


4.15 


677 


3. 85 


597 


3. 70 


405 


3. 05 


156 


4.90 


913 


6,35 


2,250 


5. 90 


1,780 


5.25 


1,200 


3.00 


130 


3. 50 


214 


3. 60 


148 


3. 60 


160 


3. 50 


149 


3.00 


70 


2. 55 


13.1 


2.31 


2.9 


3.85 


276 



501 
872 
184 



1907. 
June 12 
27 
Juiv 30 
Aug. 22 
Sept. 18 

1908. 
Jan. 29 
Feb. 20 

May 15 

1909. 
Mar. 5 
23 
Mav 12 
June 18 
July 9 
Dec. 31 

1910. 
Feb. 5 

24 
Apr. 13 

28 
June 7 
July 20 
Sept. 14 

1911. 
Feb. 17 

21 
Apr. 8 

22 
May 25 
June 26 
Aug. 29 

1912. 
Jan. 11 
Mar. 20 
May 27 
Aug. 27 
Oct. 23 

1913. 
Jan. 15 
Mar. 4 
4 
Apr. 23 
July 12 
Oct. 7 



1914. 


Jan. 


14 




15 


Keb 


H 




28 


Mar. 


U 




29 


Apr. 


16 


May 


1 

7 
15 




June 


25 


Aug. 


13 


Nov. 


20 


Dec. 


23 



1915. 
Feb. 16 

26 
Mar. 12 

25 
Apr. 8 

15 
May 15 

23 
June 28 
July 15 
Aug. 12 
Nov. 2 

22 



W. F. Martin . 
W. B.Clapp.. 
W. F. Martin . 

do - 

W. B.Clapp.. 



W.F.Martin. 

do 

W. B.Clapp-. 



W. B.Ciapp.. 
W.F.Martin. 
W. B.Clapp-. 
do 

do.. 



...do.. 



R. E. Haines. 
J. E. Stewart. 

do 

W. B.Clapp.. 

do 

J.E.Stewart.. 
W. B.Clapp. .. 



Vv^. V. Hardy - 

do 

do 

do 

-do-. 



H. D. McGlashan 
F. C. Ebert 



..do.. 

.-do.. 



F.C. Ebert.... 

do 

...-do 

do 

....do 



F. C. Ebert 

....do 

W. H. Spear 

H. D. McGlashan 

F.C. Ebert 

....do 

F. C. Ebert--.-.. 

....do 

..-.do 

do 




a Antemeridian. 



b Postmeridian. 



SAISTTA ANA EIVER BASIK. 239 

Discharge measurements of Santa Ana River near Mentone, Calif ., for 1896-1918 — Con. 



1916. 
Jan. 4 
It 
Feb. 12 
Mar. 3 
8 
Apr. 8 

May 18 
28 
June 8 
July 8 
21 
Aug. 9 
Sept. 7 
Nov. 15 

1917. 
Jan. 16 
Feb. 12 
24 



F. C. Ebert 


do 


do-... 




do.... 




do.— 




do.... 




do 




do.-.. 




.....do.... 




do.... 




Ellsworth and Ebert... 


F. C. Ebei 
do.... 


t 




do 


do.... 





F.C. Ebert » 

....do 

....do 



Gage Dis- 
height. charge. 



Feet. 
1.87 
1.98 
3.15 
3.05 
3.10 
2.75 
2.22 
2.02 
1.82 
1.75 
1.39 
1.24 
1.02 
.85 
.55 



.6.5 
.61 
1.35 



Sec.-ff. 
5.9 

11 
785 
579 
642 
387 
196 
137 
106 

96 

54 

38 

20 

10 
3.7 



6.0 

4.8 
49 



Date. 



1917. 
Mar. 6 
26 
Apr. 25 
May 18 
Sept. 7 
Nov. 25 

1918. 

Jan. 6 

Mar. 5 

17 

21 

Apr. 19 
May 3 
June 5 
July 25 

Aug. 7 
Sept. 4 



Made by— 



F.C. Ebert.. 
do.. 



Ebert and Dort. 

F.C. Ebert 

.-..do 

....do 



F.C. Ebert.. 

do 

do 

do 

do 

.do.. 

.do-. 



C. W. Sopp. 
F.C. Ebert. 

do 

do 



Gage 
height. 



Feet. 
0.71 
.82 
1.24 
1.19 
.72 
.31 



.30 

.34 
2.16 
2.03 
2.00 
1.00 
.86 
.78 
.74 
.76 
.87 



Dis- 
charge. 



Sec.-ft. 
7.7 
9.9 

35 

29 
8.5 
1.4 



1.2 
1.4 

118 

85 

78 
8.8 
4.5 
2.G 
2.6 
2.0 
3.0 



Daily discharge, i 


n second-feet, o 


/ Santa Anxi River near 


Mentone, Calif, for 


18.96-1918. 


Day. 


July. 


Aug. 


Sept. 


Day. 


July. 


Aug. 


Sept. 


Day. 


July. 


Aug. 


Sept. 


1896. 
1 


53 
53 

58 

58 
58 

58 
49 
49 
63 
66 


72 

60 
69 
63 
66 

60 
79 
60 
60 
60 


69 
72 
69 
53 
53 

36 
63 
63 
60 
60 


11 
12 
13 
14 
15 

16 
17 
18 
19 
20 


1896. 




63 
74 
78 
53 
63 

58 
69 
69 
69 
69 


63 
60 
63 
60 
60 

60 
41 
39 
69 
49 


27 
28 
43 
58 
58 

69 
76 
74 
69 
63 


21. 
22. 
23. 
24. 
25. 

26. 
27. 
28. 
29. 
30- 
31. 


1896. 


69 
78 
78 
78 
63 

49 
58 
58 
78 
66 
72 


50 
51 
33 
35 
38 

41 
41 
51 
69 
69 
50 


53 


2 








51 


3 








43 


4 








42 


5 








49 


6 








54 


7 








39 


8 








43 


9 








49 


10 








58 


















Day. 




Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1896-97. 
1 


63 
78 
60 
58 
45 
43 
53 
53 
49 
58 
63 
58 
49 
49 
50 

39 
49 
51 
51 
51 

38 
43 
42 
39 
39 

39 
170 
49 
49 
49 
49 


33 
33 
33 
33 
33 

33 
30 
30 
30 
30 

30 
31 
30 
30 
30 

30 
30 
30 
30 
30 

31 
31 
33 
33 
51 

36 
36 
35 
35 
3.1=1 


33 
33 
35 
35 
35 

35 
35 
35 
35 
35 
35 
35 
35 
35 
35 

36 
36 
36 
36 
36 
36 
36 
35 
35 
35 

33 
33 
39 
39 
38 
35 


58 
56 
33 
33 
33 
30 
27 
27 
27 
27 

43 
41 
48 
53 
76 

53 
81 
81 

72 
72 

81 
81 
91 
91 
91 

91 
91 
91 
91 
101 
91 


540 
300 
204 
204 
140 

140 
140 
186 
204 
140 

101 
101 
101 
81 
81 
72 
81 
620 
300 
280 

153 
153 
140 
126 
126 

140 
114 
114 


126 
126 
114 
101 
91 

126 
460 
140 
140 
126 
101 
101 
101 
81 
101 

126 
101 
91 
81 
126 

91 
81 
81 
64 
72 

72 
81 
170 
126 
114 
126 


126 
126 
114 
126 
126 
140 
153 
153 
140 
140 

170 
170 
186 
186 
170 

170 
170 
186 
186 
186 
153 
140 
126 
126 
126 
126 
114 
126 
114 
ini 


101 
101 
101 
101 
101 
101 
101 
91 
81 
64 
64 
64 
64 
64 
58 

58 
52 
46 
41 
41 
41 
41 
41 
46 
41 
37 
33 
33 
33 
29 
29 


60 
57 
60 
64 
60 

57 
57 
57 
57 
60 

60 
60 

64 

67 
67 
67 
67 
67 
67 
67 
64 
64 
64 
67 
67 
67 
60 
64 


64 
57 
60 
64 
60 
60 
60 
64 
67 
64 
67 
67 
64 
72 
64 
78 
67 
67 
67 
64 

60 
64 
64 

67 
67 
72 
85 
78 
78 
78 
78 


52 
61 
61 
61 
61 
52 
52 
61 
61 
61 

61 
70 
70 
70 
70 
52 
52 
52 
52 
61 
80 
45 
34 
45 
61 
61 
52 




2 




3... . 




4 




5 




6 




7 




8.- 




9 




10 




11 




12 




13 




14 




15 




16 




17 




18 




19.. . 




20 




21 




22 




23 




24.. . 




25 




26.. . 




27 




28 




29 


61 


30 




61 

61 ........ 


31 










.... 



240 SURFACE WATER OF PACIFIC SLOPE, SOUTHERl^r CALIFORNIA. 

Daily discharge, in second-feet, of Santa Ana River near Mentone, Calif., for 1896-1918 — 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1897-98. 
1 


52 
36 
34 
34 
38 

45 
42 
52 
42 
32 

38 
38 
42 
250 
45 

34 
30 

24 
24 
24 

24 
24 
24 
25 
25 

28 
28 
30 
45 
45 
45 

36 
33 

28 
28 
28 

26 
25 
25 
33 
33 

32 
30 
30 
30 
30 


34 
34 
34 
34 
34 

34 
34 
34 
38 
38 

52 
52 
52 
48 
45 

45 
38 
38 
38 
38 

36 
34 
34 
34 

45 

34 
34 
34 
34 
34 

"■■22' 

22 
22 
22 
22 
22 

22 
22 
22 
22 
34 

28 
22 
22 
22 
22 

22 
22 
22 
34 
22 


30 
28 
28 
28 
28 

28 
28 
28 
28 
28 

28 

28 
28 
28 
34 

28 
25 
26 
26 
24 

23 
23 

24 
24 
26 

26 
26 
26 
26 
26 
26 

22 
22 
22 
22 
22 

22 
22 
22 
28 
22 

22 
22 
22 
22 
22 

22 
22 
22 
22 
22 

22 

22 
22 
22 
22 

22 
22 
22 
22 
22 
22 


33 
33 
33 
33 
33 

33 
33 
33 
33 
100 

46 
46 
46 
46 
40 

40 
40 
40 
40 
40 

40 
46 
58 
40 
33 

33 
33 
36 
36 
36 
36 

22 
22 
22 
22 
22 

22 
22 
22 
22 
22 

34 
34 

34 
34 
27 

27 
27 
27 
27 
27 

27 
27 
27 
27 
27 

27 
27 
27 
27 
27 
27 


36 
36 
36 
36 
36 

76 
76 
58 
51 
46 

46 
40 
38 
36 
36 

36 
36 
40 
36 
36 

36 
33 
33 
33 
33 

33 
33 
33 

27 
30 
30 
30 
27 

27 
27 
27 
27 
27 

27 
27 
27 
27 
27 

27 
27 

27 
27 
27 

27 
27 
27 
34 
27 

30 
27 
27 


33 
33 
32 
30 
30 

33 
36 
36 
36 
36 

35 
38 
40 
33 
35 

36 
33 
28 
28 
27 

33 
26 
26 
26 

28 

36 
30 
S3 
33 
33 
34 

27 
27 
27 
27 
27 

27 
27 
27 
27 

27 

27 
27 
24 
24 
24 

27 
30 
41 
34 
73 

73 
34 
34 
41 
41 

41 
48 
41 
41 
41 
34 


34 
34 
33 
33 
33 

33 
33 
33 
33 
34 

33 
28 
28 
33 
34 

34 
34 
32 
32 
30 

30 
29 
29 

29 
29 

29 
28 
28 
28 
28 

34 
27 
24 
27 

27 

27 
27 
27 
24 
24 

24 
24 
24 
22 
22 

25 

24 
24 
24 
22 

22 
22 
22 
24 
25 

25 
25 
25 
25 
24 


40 
40 
28 
28 
26 

26 
26 
26 

30 
30 

87 
87 
66 
66 
149 

87 
66 
66 
58 
58 

58 
58 
51 
51 
51 

51 
58 
58 
58 
58 
51 

24 
22 
22 
24 
25 

27 
27 
24 
20 
20 

22 
22 
24 
24 
22 

22 
22 
20 
20 
20 

22 
19 
20 
22 
22 

. 22 
20 
22 
22 
22 
22 


48 
46 
46 
36 
36 

46 
46 
40 
40 
46 

46 
40 
40 
40 
36 

36 
36 
36 
36 
36 

54 

58 
58 
58 
58 

58 
42 
42 
40 
40 

34 

24 
25 
24 
22 

22 
22 
22 
22 
20 

20 
20 
22 
22 
22 

20 
22 
22 
19 
22 

22 
20 
20 
20 
22 

24 
22 
22 
21 
21 


40 
42 
43 
40 
40 

40 
38 
38 
38 

46 

46 
54 
51 
46 
46 

46 
38 
33 
33 
40 

42 

42 
42 
42 
40 

36 
40 
40 
40 
- 40 
40 

22 
22 
22 
22 

22 

24 
24 
24 
24 
24 

24 
24 
24 
24 
22 

22 
22 
22 
22 
20 

19 
20 
20 
20 
29 

29 
22 
21 
20 
19 
19 


40 
40 
40 
40 
38 

36 
33 
40 
51 

58 

58 
54 
51 
48 
46 

42 
46 
46 
46 
46 

36 
36 
36 
33 

40 

33 
40 
33 
36 
36 
36 

19 
19 
19 

14 
14 

14 
12 
12 
12 
12 

12 
12 
12 
12 
12 

12 
12 
12 
12 
11 

11 
11 
11 
11 
12 

12 
12 
12 
12 
12 
12 


36 


2 


36 


3 


36 


4 


36 


6 


36 


6 


28 


7 


28 


8 . 


29 


9 


40 


10 


45 


n 


45 


12 


45 


13 


42 


14 


40 


15 


36 


16 ... 


33 


17 


30 


18 . 


35 


19 


38 


20 


33 


21 


36 


22 ... . 


36 


23.. 


36 


24 


36 


25 


36 


26 


29 


27 


30 


28 


33 


29 


36 


30 


36 


31 




1898-99. 
1.. . - 


12 


2 


12 


3 


12 


4.. . . 


12 


5 


12 


6 


12 


7 


12 


8 . . 


12 


9 


12 


10 


12 


11 


12 


12.. 


12 


13.... 


12 


14 


12 


15 


12 


16 


12 


17.. . 




12 


18 




10 


19 




10 


20 




10 


21 




10 


22 




10 


23 




11 


24 




11 


25 




11 


26 




12 


27 .. 




12 


28 




12 


29 




12 


30 




12 


31 







NOTE.— No record Oct. 16 to Nov. 9, 1898. 



sa:nta ae-a eiver basin. 



241 



Daily discharge, in second-feet, of Santa Ana River near Mentone, Calif, for 1896-1918 — • 

Continued. 



14 
14 
14 
15 

15 
19 

a 32 
o 62 
103 

fll, 564 
O408 
190 
156 
114 



114 
114 
114 
102 
91 



Apr. 



May. 



40 
35 
32 
30 
250 

a 225 
a 219 
a 132 

a 62 



July. 



142131°— 21— wsp 447- 



a Estimated. 
-16 



242 SURFACE WATER OF PACIFIC SLOPE, SOUTHERI?^ CALIFORNIA. 

Daily discharge, in second-feet, of Santa Ana River near Mentone, Calif .,fm' 1896-1918:— 

Coiitijaued. 



Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Juae. 


24 


20 


20 


63 


42 


45 


32 


24 


22 


24 


485 


48 


44 


30 


24 


24 


22 


80 


48^ 


43 


29 


24 


23 


25 


63 


48' 


43 


30 


24 


23 


27 


63 


56 


42 


27 


24 


23 


28 


31 


40 


40 


29 


2r^ 


21 


27 


56 


42 


39 


26 


25 


23 


27 


43 


46 


40 


26 


24 


23 


27 


187 


36 


38 


26 


24 


22 


27 


102 


36 


38 


32 


24 


23 


28 


72 


33 


37 


34 


2,5 


23 


28 


72 


33 


34 


40 


24 


23 


28 


72 


31 


34 


39 


21 


23 


27 


72 


30 


38 


39 


22 


23 


28 


42 


30 


34 


47 


24 


23 


28 


29 


30 


35 


45 


25 


23 


28 


31 


29 


35 


45 


24 


23 


28 


31 


29 


35 


45 


2S 


23 


27 


36 


30 


35 


44 


23 


24 


26 


31 


31 


33 


29 


24 


22 


26 


28 


56 


33 


27 


24 


24 


32 


31 


36, 


32 


27 


24 


24 


33 


36 


37 


33 


26 


24 


45 


30 


48 


54 


33 


39 


24 


41 


33 


56 


49 


32 


35 


23 


28 


240 


63 


47 


34 


30 


23 


25 


80 


72 


46 


31 


32 


22 


26 


63 


68 


43 


31 


31 


22 


25 




68 


46 


31 


23 


24 


21 




63 


44 


31 


23 


24 


21 




56 




31 




23 


20 


102 


36 


4,910 


112 


79 


23 


20 


42 


36 


1,060 


112 


79 


23 


20 


42 


36 


565 


112 


79 


22 


20 


36 


63 


345 


106 


79 


22 


16 


36 


125 


345 


100 


79 


22 


16 


36 


63 


200 


100 


79 


22 


16 


42 


48 


179 


95 


76 


21 


15 


42 


48 


169 


90 


76 


21 


15 


48 


48 


142 


90 


76 


21 


15 


48 


42 


112 


90 


73 


27 


15 


55 


36 


112 


90 


73 


21 


15 


55 


36 


112 


90 


70 


21 


10 


55 


38 


112 


90 


70 


22 


10 


55 


38 


106 


90 


65 


21 


10 


55 


42 


• 106 


90 


62 


22 


10 


42 


42 


126 


90 


60 


19 


10 


42 


42 


179 


90 


58 


21 


10 


36 


42 


160 


90 


56 


24 


10 


36 


42 


142 


90 


56 


22 


10 


36 


36 


142 


90 


56 


24 


10 


42 


36 


142 


86 


56 


24 


10 


42 


36 


126 


112 


56 


2f) 


15 


42 


36 


119 


86 


50 


23 


18 


42 


48 


126 


86 


50 


23 


20 


42 


150 


126 


86 


48 


24 


20 


42 


315 


126 


86 


48 


25 


20 


42 


125 


126 


82 


48 


21 


277 


42 


125 


126 


82 


46 


24 


63 




125 


112 


80 


46 


21 


63 




150 


112 


79 


55 


20 


63 




2,450 




79 





July. 



47.5 
46.5 
51.5 

47.5 
50.0 

48.0 
48.0 
44.5 
50.0 
50.0 

54.5 
61.5 
50.0 
60.0 
47.5 

48.0 
49.5 
52.5 
54.0 
54.0 

52.0 
50.5 
51.0 
51.0 

53.5 

53.5 
53.5 
53.6 
53.5 
56.5 
56.0 



SANTA AISTA RIVER BASIN. 



243 



Daily discharge, in second-feet, of Santa Ana River near Mentone, Calif ., for 1S96-1918 — ■ 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1903-4. 
1 


45.5 
45.0 
30.0 
38.0 
36.5 

35.0 
33.5 
35.0 
39.0 
49.0 

44.5 
38.5 
39.0 
42.5 
49.0 

47.5 
51.0 
55.5 
51.0 
53.0 

50.5 
51.0 
54.5 
54.0 
54.0 

54.0 
56.5 
56.0 
54.0 

55.5 
55.5 

49 
56 
56 
52 
50 

51 
50 

48 
46 
44 

37 
54 
48 
43 
43 

43 
44 
50 
50 
52 

54 
56 
52 
56 
49 

46 
45 
49 
41 
45 
22 


51.5 
37.0 
32.5 
. 32.0 
28.0 

27.0 
28.5 
29.5 
31.5 
29.5 

30.0 
29.0 
29.0 
29.0 
29.0 

29.5 
29.5 
29.5 
29.5 
29.5 

29.5 
27.5 
27.5 
27.5 
27.5 

27.5 
27.5 
27.5 
27.5 
28.0 

22 
20 
20 
21 
21 

22 

20 

20 

19.1 

19.6 

19.5 

20 

20 

21 

21 

19.6 

20 

20 

17.7 

18.6 

19.8 
19.8 
19.8 
19.5 
18.0 

19.3 
19.3 
22 
19.3 


29.5 
27.0 
27.0 
27.0 
26.5 

27.0 
27.5 
29.0 
27.5 
28.5 

27.0 
26.0 
25.5 
25.5 
24.5 

26.5 
27.5 
26.5 
26.5 
26.5 

27.5 
27.5 
27.0 
27.5 
27.5 

27.5 
27.5 
27.5 
27.5 
27,5 
27.5 

19.3 

19.1 

21 

21 

20 

20 

19.8 

22 

20 

20 

20 

19.8 

19.5 

20 
18.4 

19.9 

22 

21 

20 

20 

19.3 

19.7 

19.7 

20 

21 

21 

20 

20 

20 

19.9 

23 


27 
27 
27 

27 
25 

24 
24 
26 
26 
26 

26 
26 
27 
26 
26 

26 
26 
26 
26 
26 

25 
27 
28 
28 
27 

28 
28 
28 
27 
26 
26 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
80 
5 

1.5 
1.5 
1.5 
1.5 
1.5 

1 
1 
1 
1 

1 

42 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 

1 
1 
1 


26 
26 
27 
27 
32 

31 
28 
29 
29 
29 

29 
28 
28 
28 
29 

29 
28 
28 
31 
31 

31 
29 
30 
29 
29 

29 
29 
94 
92 

1 
154 
122 
202 
234 

68 
68 
52 
29 
29 

20 
14 
10 

8 
8 

202 
93 
35 
35 
25 

17 
17 
6 
1 

30 


2 
1 


37 
38 
36 
34 
28 

30 
29 
30 
30 
30 

54 
48 
38 
33 
30 

32 
33 
45 
45 
69 

35 
36 
280 
95 
96 

93 
79 
91 
162 
161 
109 









1 

321 

185 

143 

151 

168 
185 
168 
185 

168 
151 

92 

80 
80 

80 
68 
51 
36 
92 
68 


106 
81 
80 
80 
80 

80 
52 
53 
41 
38 

38 
43 
42 
43 
43 

43 
42 
41 

42 
36 

36 
44 
43 
48 
49 

52 
52 
52 
52 
52 

56 
99 
99 

24 
24 

24 
24 
24 
24 
24 

24 
24 
20 
20 
20 

20 
120 

92 
106 

13 

10 
13 

28 
28 
20 

20 
20 
16 
13 
13 


48 
48 
48 
48 
45 

43 
43 
42 
42 
42 

37 
36 
34 
36 
36 

37 
37 
40 
39 
40 

40 
42 
39 
40 
40 

46 
46 
44 
44 
41 
41 

20 
120 
92 
92 

80 

80 
92 
135 
120 
120 

120 
120 
120 
168 
168 

185 
185 
168 
185 
185 

168 
120 
120 
106 
135 

120 
120 
151 
151 
151 
151 


42 
42 
46 
46 

48 

49 
50 
50 
48 
43 

44 
40 
38 
37 
42 

43 
43 
43 

44 
45 

46 
46 
45 
46 
46 

45 
43 
44 
44 
45 

94 
94 
94 
94 
94 

86 
86 
78 
78 
78 

70 
11 
21 
11 
4 

4 
11 
11 

8 
8 

4 
4 

4 
4 
4 

4 
4 
3 
3 
3 


45 
45 
47 
49 
50 

52 
47 
42 
41 
46 

45 
45 
45 
47 
46 

48 
48 
48 
47 
45 

45 
45 
45 
40 
37 

43 
43 
43 
37 
39 
41 

3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

2 
2 
2 
2 
2 

2 
2 
2 


44 
44 
44 
46 
46 

48 
48 
44 
41 
43 

44 
46 
41 
35 

41 

45 
45 
45 
46 
52 

54 
56 
48 
48 
47 

49 
51 
46 
45 
46 
46 


4(> 


2 


42 


3 


42 


4 


49 


5 


47 


6 


52 


7 


58 


8 


51 


9 . ... 


51 


10 


50 


11 


52 


12 


51 


13 


51 


14 


51 


15 


51 


16 


53 


17 


53 


18 


55 


19 


57 


20 


56 


21 


57 


22 


56 


2\ 


50 


24 


49 


25 


^ 


26 


47 


27 


46 


28 


42 


29 


40 


30 


40 


31 




1904-5. 
1 




2 




3 




4 




5 




6 




7 




8 




9 




10 




11 




12 




13 




14 




15 




16 




17 




IS 




19 




20 




21 




22 




23 




24 




25 




26 




27 




28 




29 




30 




31 





244 SURFACE WATER OF PACIFIC SLOPE, SOUTHERIT CALIFORNIA. 

Daily discharge, in second-feet, of Santa Ana River near Mentone, Calif., for 1896-1918- 

Continued. 



Oct. 


Nov. 


Dec. 


Jan. 


Feb. 






6 










6 










3 










3 










3 








1 


3 








2 


3 








3 


3 








2 


3 






1 


1 

1 

1 
1 
1 

1 

1 
1 
1 


3 

3 
3 
3 
3 
3 

3 
3 
3 










11 


122 






2 


78 


88 






3 


11 


25 


1 




2 


6 


10 


44 




2 


6 


10 


63 




2 


6 




63 




2 


6 




63 




25 


6 




63 




128 


6 




63 




200 


6 




63 




17 


48 








6 


11 
6 






10.5 


2.5 


2.5 


27 


181 


10.5 


2.5 


2.5 


18 


181 


10.5 


2.5 


5 


10 


241 


10.5 


2.5 


26 


10 


275 


10.5 


2.5 


26 


10 


275 


10.5 


2.5 


2.5 


69 


275 


10.5 


2.5 


2.5 


69 


155 


10.5 


2.5 


2.5 


69 


155 


10.5 


2.5 


2.5 


69 


108 


10.5 


2.5 


2.5 


775 


88 


10.5 


2.5 


2.5 


210 


88 


10.5 


2.5 


800 


210 


69 


10.5 


2.5 


100 


241 


69 


10.5 


2.5 


52 


275 


69 


10.5 


2.5 


2.5 


241 


62 


10.5 


2.5 


5 


275 


52 


10.5 


2.5 


5 


275 


88 


10.5 


2.5 


1 


400 


69 


10.5 


2.5 


1 


330 


52 


10.5 


2.5 





210 


52 


2.5 


2.5 





210 


210 


2.5 


2.5 





210 


700 


2.5 


2.5 





210 


700 


2.5 


2.5 





210 


475 


2.5 


2.5 





69 


400 


2.5 


2.5 





52 


400 


2.5 


2.5 


100 


52 


400 


2.5 


2.5 


151 


52 


155 


2.5 


2.5 


151 


52 




2.5 


2.5 





155 




2.5 




38 


69 





Apr. 



May. 



July. 



44 
44 
25 
16 
10 

10 
5 
5 
5 
5 

5 

2,400 

800 

268 

145 

1,130 
600 
385 
286 
217 

182 
170 
160 
860 
1,090 

1,775 
1,280 
1,050 



155 
210 
108 
131 
1,375 

700 
475 
775 
700 
241 

5-50 
475 
400 
400 
155 

155 
155 
181 
475 
700 

1,900 
1,075 
1,000 
850 
1,000 



424 
203 
183 
203 



183 
165 
149 
133 
133 

133 
120 
120 
133 
120 

120 
120 
120 
120 
133 



550 
625 
700 
625 
550 

550 
550 
625 
625 
625 

625 
625 
625 



925 


243 


925 


276 


775 


276 


700 


192 


625 


276 


550 





203 
210 
210 
210 

210 
170 
170 
133 
115 

115 
97 
97 
97 
97 

97 
133 
150 
150 

97 

97 
115 
536 
370 
340 



258 
150 
150 
115 
115 

115 
97 

97 
97 
97 

133 
97 
97 
97 
97 

97 

85 
85 
85 
85 

85 
85 
85 



116 
116 
116 
116 
116 

116 
116 
116 
116 
116 

116 
116 
116 
116 
116 

116 
100 
85 
85 
85 



SANTA ANA RIVER BASIN". 



245 



Daily discharge, in second-feet, of Santa Ana River near Mentone, Calif ., for 1896-1918— 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1907-8. 
1 


4 
4 
4 
4 
9 

9 
4 
4 
4 
4 

4 
4 
4 
4 
4 

22 
15 
15 
15 
9 

9 

4 
9 
50 
22 

15 
15 

40 
40 
40 
40 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 
2 


40 
40 
40 

72 
72 

72 
31 
9 
4 
31 

72 
72 
72 
72 
72 

72 
72 
72 
60 
60 

60 
60 
60 
50 

4 

2 
2 
2 
2 
2 

2 
2 
2 

2 
2 
2 
2 

2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 


4 

4 
2 

2 

2 

2 
2 

2 

2 

2 
2 

2 
2 

I 

2 

2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 

2 
2 
2 
2 
2 
2 

































120 

195 

91 
43 
120 
155 
120 
120 

2 
2 
2 
2 

2 

2 
2 
2 
2 
2 

2 
2 
2 
33 
2 

2 
2 
2 
2 
2 

2 

1,335 

206 

97 

52 

29 
81 
29 
19 
11 
11 


9 
105 
105 
240 
91 

54 
33 
24 
16 
24 

24 
24 
16 
9 

78 

66 
66 
66 
66 
66 

66 
66 
66 
66 
66 

66 

78 ■ 
78 
174 

6 

2.5 

1 

81 
29 

19 

575 
381 
180 
135 

157- 
267 
632 
340 
302 

206 
180 
157 
157 
157 

157 
115 
115 
115 
97 

81 
81 
66 


120 
105 
105 
120 
120 

54 
43 
43 
16 
9 

9 
9 
9 
9 

24 

24 
24 
105 
120 
120 

120 
120 
120 
105 
105 

33 
43 
43 
66 

78 

78 

66 
66 
66 
52 
52 

62 

52 
52 
40 
40 

40 
29 
29 
19 
19 

19 
19 

97 
97 
97 

115 
115 
135 
235 
235 

206 
267 
302 
235 
235 
235 


78 
66 
43 
24 
16 

9 
9 
9 
5 
5 

5 

16 
24 
16 

16 
16 
16 
9 
16 

9 
9 
78 
33 
33 

24 
24 
16 
24 
16 

135 
135 
235 
235 
235 

235 
135 

66 
66 
66 

66 
66 
52 
66 
81 

97 
97 
135 
135 
135 

97 
157 
157 
157 
157 

157 
157 
157 
157 
157 


9 
9 
43 
24 
16 

16 
9 

5 

2 
2 
2 

2 
2 

2 
2 
2 

2 

2 
2 
2 
2 
2 
2 

157 
180 
157 
135 
135 

135 
157 
157 

81 
97 

97 
97 
97 
97 
81 

81 
66 
52 
52 
52 

40 
40 
40 
40 
66 

52 
40 
52 
29 
29 
19 


2 
2 

2 
2 

2 
2 

2 

2 
2 
2 
2 
2 

2 
2 
2 

2 

2 
2 
2 
2 
2 

19 
19 
19 
19 
29 

157 
157 
157 

40 

40 

40 
40 
40 
40 
40 

29 
11 
6 
19 
11 

6 

2,5 

2.5 

2.5 

2.5 

2.5 
2.5 
2.5 
2.5 
2.5 


2 

2 
2 

2 
2 
2 
2 
2 

2 
2 

2 
2 

2 
2 

2 
2 
2 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 
2.5 


2 

2 
2 

2 

2 

2 

2 

2 

I 

2 
2 

2 
2 
2 

2 

2 

1 

2 
2 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 

6 

2.5 

6 

2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 
2.5 


2 


2 


2 


3 . 


2 


4 


2 


5 


2 


6 


2 


7 


2 


8 


2 


9 




10 


2 


11 


2 


12 . 


2 


13 


2 


14 


2 


15 


2 


16 


2 


17 


2 


18 


2 


19 


2 


20 


2 


21 


2 


22... 


2 


23 


2 


24 


2 


25 .. . 


2 


26 


2 


27 


2 


28 


2 


29 


2 


30 


2 


31 




1908-9. 
1 


2.5 


2 . . .- 


2.5 


3 


2.5 


4 


2.5 


5 


2.5 


6 


2.5 


7 


2.5 


8 


2.5 


9 


2.5 


10 


2.5 


11 


2.5 


12 


2.5 


13 


2.5 


14 


2.5 


15 


2.5 


18 


2.5 


17 


2.5 


18 


2.5 


19 


2.5 


20 


2.5 


21 


2.5 


22. . . . 


2.5 


23 


2.5 


24. 


2.5 


25 


2.5 


26 


2.5 


27 


2.5 


28. . 


11 


29 


2.5 


30 


2.5 


31 





246 SURFACE WATER OF PACIFIC SLOFE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Santa Ana River near Mentone, Calif., for 1896-1918— 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug, 


Sept. 


1909-10. 
1. 


2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 

2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2,5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 
2.5 

4 
4 
4 
4 
4 

4 
4 
4 
4 
4 

4 
15 
15 
15 

2 

2 
2 
2 
2 
2 

2 
2 
2 
2 

2 
2 
2 
2 
2 
2 


2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
29 

2.5 
2.5 
2.5 
2.5 
19 

2.5 
2.5 
2.5 

2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2 
2 
2 
2 

2 
2 
2 
2 
2. 

2 
2 
2 
2 
2 

2 
2 
2 
2 

2 

2 
2 
2 
2 

2 

2 
2 
2 
2 
2 


2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 

425 

575 

97 
66 
19 

6 

2.5 

2.5 
2.5 
2.5 

2.5 
2.5 

2.5 
2.5 
2.5 
2.5 

2.5 

81 

81 
2.5 
2.5 
2.5 
827 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 

2 

2 
2 
2 
2 
2 
2 


o8j500 

]!!!!!! 

'"'ios' 

63 
154 

123 
103 
103 
103 

85 

85 

3 
3 
3 
3 
3 

3 
3 
3 
3 

175 

62 
16 
1 

1 
74 

62 
32 
3 
1 






113 

127 
32 

6 

1,160 

193 

158 


38 
38 
38 
48 
26 

48 
38 
38 
63 
103 

103 
103 
63 
63 
26 

26 
26 
26 
26 
26 

26 
26 
26 
26 

26 

26 
26 
26 

193 
158 
127 
360 
213 

158 
142 
142 
127 
113 

99 
99 
99 
158 
158 

158 
99 
86 
86 
86 

74 
74 
86 
86 
74 

86 


26 
26 
26 
26 
26 

26 
26 
26 
26 
26 

26 
26 
109 
109 
26 

26 
26 
26 
26 
26 

26 
26 
26 
26 
43 

43 
26 
26 
63 

48 

48 

86 
86 
86 
290 
158 

142 
142 
290 
690 
1,840 

1,400 
900 
570 
435 
435 

375 
325 
325 

325 
280 

240 

240 
240 
240 
240 

240 
240 
240 
240 

240 
240 


48 
74 
43 
26 
26 

18 
11 
11 
11 
11 

53 
63 
63 
63 
63 

63 
53 
53 

fs 

11 
11 

6 
6 
11 

6 
6 
6 
11 
11 

240 
240 
240 
240 
240 

202 
202 

168 
137 
137 

168 
168 
137 
137 
137 

137 
111 
111 
111 

89 

89 
89 
89 
89 
89 

89 
89 
89 
89 
89 


11 
11 
11 
11 
11 

11 
11 
11 
11 
11 

11 
11 
11 
11 
11 

11 
6 
11 
11 
11 

11 
11 
11 
11 
11 

2 
2 
2 
2 
2 
2 

89 
89 
89 
89 
89 

89 
89 
71 
71 
55 

41 
41 
41 
41 
71 

55 
55 
55 
41 
41 

41 
41 
41 
41 
41 

41 
41 
41 
41 
41 
29 


2 
2 
2 
2 
2 

2 
2 

2 
2 

2 

2 
2 
2 


6 

6 
6 
6 
6 
6 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

29 
29 
29 
29 
29 

29 
29 
29 
29 
29 

137 
29 
29 
29 
29 

29 
29 
29 
29 
29 

29 
29 
29 

29 
29 

19 
19 
19 
19 
19 


2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 

2 
2 

85 
85 
74 
74 
63 

63 
63 
26 
18 
11 

6 
6 
2 
2 
2 
2 

19 
19 
19 
19 
12 

12 
12 
12 
12 

7 
7 
7 
7 

12 
29 
19 
19 
12 

89 
89 
111 
111 
111 

111 

29 
12 
1 
1 
1 


2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 

2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 

2 

2 
2 
2 
2 
2 
33 


15 


2 


15 


3 


15 


4 


4 


5 


4 


6 


4 


7 


4 


8 


4 


9 


4 


10 


8 


11 


8 


12 


15 


13 


15 


14 


8 


15 


4 


16 


15 


17 




18 . . 




19 




20 




21 




22 




23 




24 




25 




26 




27 




28 




29 




30 




31 




1910-11. 
1 . . 




2 




3 




4 




5 




6. 




7 




8 




9 




10 




11 




12 




13... 




14 




15 




16 




17 




18 




19. . 




20 




21 




22. 




23 




24 




25 




26 - . 




27 




28 




29 




30 




31 





a Computed from cross-section and slope data obtained after the liigh water. 



SAHTA A2TA RIVEE BASIF. 



247 



Daily discharge^ in second-feet ^ of Santa Ana Eiver near Mentone, Calif., for 1896-19 IS— 

Continued. 



]>ay. 



11... 
12... 
13... 
14... 
15. . . 



16... 
17... 
18... 
19... 



21.. 
22.. 
23.. 



26.. 
27.. 



29.. 
30.. 
31.. 



8.. 
9.. 
10.. 

11.. 
12.. 
13.. 



21.. 

22.. 
23.. 
24.. 
26.. 



30.. 
31.. 



1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 



1.2 
1.2 
1.2 



1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 
1.2 



1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

2.4 
2.4 
2.4 
2.4 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 



1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 
1.2 



2 
2 
2 

2.4 
2.4 
2.4 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
• 1.2 

1.2 
1.2 
1.2 
1.2 
1.2 
1.2 



1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
4.5 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
4.5 

4.5 
4.5 
2.4 



8.5 
2.4 
2.4 

2.4 
2.4 
2.4 
2.4 
2.4 

2.4 
2.4 
2.4 
2.4 
8.5 
2.4 



2.4 
2.4 
2.4 
2.4 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 
1.2 



Apr. 



2.4 
2.4 
2.4 
2.4 
2.4 

2.4 
2.4 
2.4 
14 

8.5 

71 
42 
55 



1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 

1.8 



1.8 



8.5 
8.5 



14 

8.5 
8.5 
8.5 
4.5 

4.5 
4.5 
. 4.5 
2.4 
2.4 

2.4 
2.4 
2.4 
2.4 
2.4 
2.4 



2.4 
2.4 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 



1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 



July. 



1.2 

1.2 



1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 
1.2 



1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 



1.2 
1.2 



Note. — Daily discharge determined from a well-defined rating curve. 



248 SUEFACB WATEE OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Santa Ana River near Mentonc, Calif., for 1896-1918 — 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1913-14. 
1 


0.9 
.9 
.9 
.9 
.9 

.9 

.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.8 
.6 
.6 


0.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 

.6 

31 

1.2 

9 

.6 
.6 
.6 

12 

12 

4.5 
1.2 
1.2 
.9 
.9 

.9 
.9 
.9 
.9 
.9 


0.9 
.9 
.9 
.9 
.9 

.9 
.9 

.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.9 
.9 
.9 

.9 
.9 

.6 
.6 
.6 
.6 

1.8 

1.8 
1.8 
1.8 
1.8 

1.8 
1.8 
1.8 
1.8 
1.8 

3.0 

1.8 
1.8 
1.8 
1.8 

1.8 
1.8 
1.8 

1.8 

1.8 

1.8 
3.0 
1.8 
1.8 
1.8 

1.8 
1.8 
1.8 
1.8 
1.8 
1.8 


0.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
.6 

.6 
.6 
.6 
.6 
171 

325 

50 

32 
156 
118 

15 
12 

7 
7 
97 

1,020 
760 
315 
204 
170 
138 

1.8 
1.8 
1.8 
1.8 
1.8 

1.8 
1.8 
1.8 
1.8 
1.8 

1.8 
1.8 
1.8 

1.8 
1.8 

46 

1.8 
1.8 
1.8 
1.8 

1.8 
1.8 
1.8 
1.8 
1.8 

1.8 
1.8 
1.8 

330 

198 

198 


110 

84 
53 
37 
18 

14 
10 
10 
10 
10 

7 
4 
4 
4 
2 

2 

2 

30 

355 

1,320 

2,190 
624 
388 
206 
27 

27 
132 
132 



198 
121 
121 
121 
121 

121 
121 
121 
144 
870 

870 
510 
510 
510 
144 

144 
144 
100 
100 
100 

100 
100 
100 
100 
100 

100 
100 
100 


119 

108 
108 
96 
76 

76 
76 
68 
68 
68 

68 
67 
60 
51 
50 

50 
49 
48 
48 
47 

46 
46 
45 
39 
38 

37 
37 
40 
40 
36 
28 

100 
100 
100 
100 
100 

100 

64 
64 
64 
64 

64 
64 
64 
64 
64 

64 
100 
100 
100 
100 

100 
100 
144 
144 
170 

144 
121 
121 
198 
170 
144 


27 
24 
24 
23 
40 

40 
59 
40 
40 
39 

38 
46 
45 
45 

44 

38 
31 
32 
34 
36 

37 
61 
38 
39 
35 

31 

28 
24 
200 
142 

121 

144 
144 
170 
.70 

144 
121 
121 
121 
121 

144 
170 
170 
170 

144 

144 
144 
144 
170 
170 

228 
170 
170 
170 
170 

170 
170 
170 
228 
198 


108 
108 
108 
96 
96 

86 
86 
76 
76 
68 

68 
60 
60 
60 
60 

59 
58 
58 
57 
66 

55 
48 
47- 
46 
45 

39 
38 
38 
37 

48 
48 

198 
200 
198 
198 
198 

198 
198 
198 
198 
228 

228 
260 
295 
260 
260 

228 
260 
260 
260 
260 

260 

269 
260 
198 
198 

198 
198 
198 
198 
198 
198 


47 
59 
58 

58 
58 

57 
56 
55 
48 
36 

29 
28 
26 
26 
26 

26 
26 
25 
25 
25 

25 
25 
22 
22 
22 

18 
18 
18 
18 
a 18 

198 
228 
228 
190 
170 

170 
170 
170 
170 
170 

170 
170 
144 
144 

144 

144 
144 
144 
144 
121 

• 121 
121 
121 
121 
121 

121 
121 
100 
100 
100 


18 
13 
13 
13 
13 

13 
13 
10 
10 
10 

10 
10 
10 
10 
3 

3 
3 
3 
3 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 
2 

100 
100 
100 
100 
100 

100 
100 
100 
100 
100 

100 
100 
100 

81 
72 

72 
64 
64 
64 
64 

57 
57 
50 
64 
64 

57 
50 
38 
38 
38 
38 


2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 

2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 
2 

29 
29 
29 
29 
29 

21 
21 
21 
21 

18 

18 
18 
18 
18 
18 

15 
15 
15 
15 
10 

5.5 
5.5 
5.5 
6.5 
5.5 

5.5 

5.5 

5.5 

5 

5 

4 


2 


2 


2 


3 . 


2 


4 


2 


6. .. 


2 


6 


2 


7 




8 




9 




10 




11 




12 




13 




14 




15. 




16 




17 




18 




19 




20 




21 




22 




23 




24 




25 




26 ... 




27 




28. ..;... . 




29 




30 




31 




1914-15. 
1 




2 




3 




4 . . 




5 




6 


3 


7 


3 


8 


3 


9 


2.5 


10 


2.5 


11 


2.5 


12 


2.5 


13 


2 


14 


2 


15 


2 


16 


2 


17 


2 


18 


2 


19 


2 


20 


1.5 


21 


1.5 


22 


1.5 


23 




24 




25 




26 




27 




28 




29 




30 




81 





a Interpolated. 



SANTA ANA RIVER BASIN. 



249 



Daily discharge, in second-feet, of 8anta Ana River near Mentone, Calif., for 1896-1918 — 

Continued. 



Apr. 



May. 



July. 



Aug. 



1.0 
1.0 
1.0 
1.0 
1.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 

2.0 

2.0 
2.0 
2.0 
2.0 
2.0 
2.0 



2.0 
2.2 
2.2 
2.2 
2.2 

2.2 
2.2 
2.2 
2.2 
2.5 

2.5 
2.5 
2.5 
2.5 
2.2 

2.2 
2.2 
2.2 
2.2 
2.2 

2.2 
2.2 
2.2 
2.3 
2.3 

2.3 
2.3 
2.3 
2.f 
2.3 



2.3 
2.3 
2.3 

26 
2.7 

3.5 
3.1 
2.7 
2.7 
2.3 

2.3 
2.3 
2.3 
2.5 
3.1 

15 

15 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
3.1 
3.5 



3.5 
16 



2.7 

41 
5.5 
6.5 
228 
163 

15 
22 

5 

2.5 

47 



35 
935 



700 
700 
700 
700 
700 

700 
700 
835 



700 
700 
835 
835 
835 

700 
595 
595 
595 



595 
595 
595 
595 
. 1, 300 

. 1,000 
700 
700 
700 
700 

700 
700 
700 
640 



640 
640 
640 
595 
640 

1,090 
1,000 
1,090 
1,090 
1,000 

1,000 
910 

835 
700 
440 
410 



410 
410 
410 
410 
410 

385 
385 
360 
360 
385 

385 
385 
360 
360 
360 

338 
338 
338 
338 
315 



315 
275 



200 
200 
200 
200 
200 



200 
200 
200 
200 

187 

200 

187 
187 

187 
187 

187 
187 
187 
187 
187 

187 
142 
153 
187 
187 

341 
142 
136 
136 
136 

130 
130 
126 
126 
113 
113 



109 
109 
104 



80 
82 



84 
101 



91 
91 



88 

87 



87 
87 
87 
85 



64 
60 



36 
34 
34 
43 
39 



31 
29 



25 
24 
23 
23 
23 

23 
21 
19 

18 
20 

22 
23 

18 



20 
20 
20 
20 

20 
19 

18 
17 



19 
20 
20 
20 
19 
18 



28 
31 
26 

18 



7.5 
7.5 



31 
29 
29 
28 
24 

21 
18 
17 
17 
18 

18 
18 
15 
13 

18 



18 
18 
18 
18 
16 



6 

4.2 

2.3 

1.1 
3.9 
3.8 
3.S 
3.8 

3.8 
3.8 
3.8 
3.8 
3.8 



3.6 
3.( 

3.< 
3.6 
3.6 
3.6 
3.4 



3.4 
3.4 
3.4 



3.4 
3.6 
3.6 



3.4 
3.4 
3.4 
3.4 
3.4 



3.4 
3.4 
3.4 

3.4 
3.4 
3.4 
3.4 
20 

11 

6 
5 



4.2 

4.2 

9 

6.5 

6.5 



4.5 
4.5 
4.{ 

4.8 

4.5 

5 

4.5 

6 



6.5 
62 
17 



5 
5 
5 
5 

5 

4.5 
4.5 
4.5 
4.5 

4.5 

4.8 
4.8 
5.5 
5.5 



9.5 
113 



51 
164 



6.5 
6.5 



14 
13 
10 
9.5 

8.5 

7.5 

6.5 

6 

7 

9.5 



10 
10 
9 

7.5 



12 
16 
25 
32 



18 
18 
07 
26 
31 



24 

24 



35 
32 
29 
25 

25 

26 
27 
29 
32 
37 



64 
72 
73 



43 
41 
34 
31 
34 

24 
15 
14 
14 
18 



6.5 
5.5 
5.5 
4.5 



4.5 
3.9 
3.9 
3.9 
3.6 

3.6 
.3.0 
3.0 
3.0 
3.0 

3.0 
2.9 
2A 
3.3 
3.3 

3.3 
18 
4.2 
3.9 
3.6 

3.6 
4.2 
6 

7.5 
7 

6.5 
5.5 
5 



4.2 

4.2 



5 
5.5 



5.5 

5 

4.5 



3.3 

3.3 

3.3 

5 

6.5 

6 

5.5 
14 



4.2 
11 



10 
12 
14 
14 

17 

19 
39 
29 
19 
17 



5 
3.9 



4.5 

4.2 



10 
9.5 



250 SURFACE WATEE OF PACIJFIC SLOPE; SOUIJHEIIN CALirORNIA. 

Daily discharge, in second-feet, of Santa Ana River, near Mentone, Calif ., for 1896-1918— - 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1917-18. 
1 


9.5 
10 
9 

8.5 
6.5 

4.5 

8 

6 

6 

6.5 

3.9 
4.8 
9.5 
9.5 
5.5 

6 

6 

4.2 

3.0 

2.4 

2.0 
1.8 
3.0 
3.2 

4.8 

5 

3.6 

3.3 

2.2 

1.8 

1.8 


1.6 
1.6 
1.7 
2.0 
1.6 

4,2 
2.0 
1.6 
1.6 
1.4 

1.4 
1.3 
1.3 
1.2 
1.1 

1.2 

1:1 

1.4 
1.3 

1.4 
1.4 
1.4 
1.4 
1.3 

1.3 
1.3 
1.3 
1.2 
1.2 


2.5 
4.5 
5.5 

10 

44 

21 
2.6 
2.3 

1.8 
1.6 

1.5 
1.4 
1.4 
1.4 
1.4 

1.5 
1.5 
1.4 
1.3 
1.3 

1.^ 
1.5 
1.4 
1.4 
1.4 

1.3 
1.3 
1.3 
1.2 
1.3 
1.4 


1.4 
1.4 
1.5 
1.5 
1.4 

1.2 
1.2 
1.2 
1.3 
1.4 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.4 
1.2 

1.1 
1.1 
1.3 
1.1 
1.2 

1.4 
1.2 
1.2 
1.2 
1.2 
1.2 


1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.3 
1.3 
1.3 
1.3 

1.3 
1.3 
1.4 
1.4 
1.4 

1.4 
1.8 
6 
20 
1.8 

1.7 

37 

11 
2.0 
1.6 

1.6 
1.4 
1.4 


1.3 
1.3 
1.4 
1.4 
1.6 

19 
2,390 

545 

123 
1,860 

1,770 

3,970 

1,810 

495 

278 

184 
123 
80 
112 
109 

80 
80 
78 
70 
68 

62 
62 
49 
39 
39 
40 


39 
42 
39 
32 
23 

21 
20 
20 
19 
16 

15 
16 
29 
25 
16 

12 
10 

8.5 
8.5 
9 

9 
11 

7.5 
8.5 
8.5 

9 

9 

8.5 

8 

7.5 


6.5 
5.5 

5.5 
4.5 
6 

7.5 
7.5 
9.5 
10 
6 

4.5 

3.8 
3.8 
6.5 

7 

6 
7 
6.5 

7 
4.8 

4.0 
3.2 
3.2 

2.8 
2.8 

2.8 
3.5 
6,5 
6.5 
4.2 
3.0 


2.8 
11 
2.8 
2.8 
2.7 

2.6 
2.4 
2.2 
2.2 
2.2 

2.4 
2.6 
2.7 
2.8 
3.8 

17 

20 
6.5 
4.5 
3.2 

2.2 
2.1 
2.1 
2.1 
2.1 

2.2 
2.2 
2.4 
2.4 
2.7 


2.8 
3.2 
3.0 
2.8 
3.0 

2.8 
2.7 

15 

18 

7 

6 

4.0 
2.2 
2.1 

2.0 
1.8 
1.6 
1.5 
1.5 

1.6 
1.8 
2.0 
2.1 

2.0 


2.1 
2.4 
4.0 
1.5 
1.5 

1.8 
2.2 
2.2 
2.4 

5.5 

3.5 
2.2 
2.0 
2.8 

5.5 

9 
10 

8 

4.5 

3.8 

3.2 
3.0 

2.8 
2.8 
2.6 

2.7 
2.4 
2.0 
1.8 
6 
15 


6 


2 


3.1 


3 


3.1 


4 


2.9 


5 


2.2 


6.. 


2.2 


7... 


2.2 


8.;. 


2.2 


9 


2.2 


10 


22 


11.. 


6 


12 


.3.3 


13... 


3.6 


14. 


4.6 


15 


6.5 


16 


8 


17 


7.5 


18. 


7 


19.. 


6 


20. .;.: 


4.3 


21... 


4. 


22. . .. 


6.5 


23 


5.5 


24 


4.0 


25. 


2 2 


26 


2.0 


27 


2.2 


28 


2.2 


29 


2.0 


30 


2.0 


31 









Note.— No record: Sept. 1-30, 1897; Oct 16 to Nov. 9, 1898. Interpolated June 30, 1914; Jan. 18 to Feb. 
10, 1916 (gage out). Sept. 4-6,1917, no record— disetiarge interpolated. Discharge estimated from discharge 
measurements Oct. 1, 1914, to Jan. 28, 1915. No gage height record July 10-12 and 26, 1918— discharge esti- 



Monthly discharge of Santa Ana River near Mentone, Calif ., for 1896-1918 



1896. 

July 

August 

September.. 



The period. 

1896-97. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 



Discharge in second- 



Maxi- Mini- 
mum, mum. 



170 

51 
39 
101 
620 
460 
186 
101 
67 
85 



56 
55 



54 
33 
35 
63 
181 



67 
58 
47 



Run-off 
(total in 
acre- 
feet). 



3,935 
3,443 
3,273 



3,320 
1,964 
2,152 
3,874 
10, 052 
7,194 
8,688 
3,751 
3,749 
4,120 
3,566 
2,797 



55, 200 



1897-98, 

October 

November. . . 
December . . . 

January 

February 

March 

April 

May 

June 

July 

August 

September... 

The year. 

1898-99, 

October 

November. . . 
December . . . 

January 

February 

March 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



250 
52 
34 

100 
76 
40 
34 

149 



42 
38 
27 
40 
40 
32 
31 
55 



26 
28 
34 



Run-off 
(total m 
acre- 
feet). 



2,582 
2,261 
1,660 
2,460 
2,221 
1,968 
1,845 
3,382 
2,618 
2,521 
2,582 
2,442 



28,500 



1,59* 
1,309 
1,353 
1,599 
1,555 
2,091 



SANTA ANA BIVER BASIN. 251 

Monthly discharge of Santa Ana River near Mentone, Calif., for 1896-1918 — Continued. 



Month. 


Discharge in second- 


Run-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
leet. 


RunK)fl 
(total in 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


MaTd- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1898-99-Con. 
April 


34 
27 
34 
29 
19 
12 


22 
19 
19 
19 
11 
10 


25 
22 
22 
22 
13 
12 


1,488 
1,353 
1,309 
1,353 
799 
714 


1906-7. 
October 


10.5 
2.5 
800 

775 
..700 


2.5 
2.5 

.0 
10 
52 
108 
192 
116 
72 
40 
9 
2 


7.66 
2.50 
47. 8 

166 

216 

608 

476 

170 

101 
66.2 
21.2 
10.0 


471 


May 


November 

December 

January 


149 




2,940 


July 


10,200 




February 


12,000 


September 




1,900 
700 
276 
116 
85 
40 
132 


37,400 
28,300 
10,500 
6,010 
4,070 
1,300 


April 


The year 


73 


10 


22.6 


16,500 


May..!'!!!!!"!! 




1899-1900. 


19 
49 
36 
36 
23 
28 
43 
250 
25 
25 
12 
16 


12 
17 
18 
19 
20 
20 
19 
20 
19 
11 
9 
11 


16 
21 
23 
23 
21 
23 
25 
57 
22 
19 
11 
12 


984 
1,250 
1,414 
1,414 
1,166 
1,414 
1,488 
3,505 
1,309 
1,168 
676 
714 


Jllly 


October . 


August 


November 

December 

January 


September 

The year 

1907-8. 
October 


595 


1,900 


.0 


157 


114,000 


Februai-y 

March 




50 

72 

4 

195 

240 

120 

78 

43 

2 

2 

2 

2 


4 
4 
1 

9 
9 
5 
2 
2 
2 
2 
2 


13.9 
45.0 
1.68 
31.1 
65.8 
67.7 
22.3 
5.81 
2.00 
2.00 
2.00 
2.00 




April 


855 


May 


November 

December 

January 


2,680 




103 


July 


1,910 




February 

March 


3,780 


September 


4,160 


April 


1,330 
357 


Theyeai'..... 


250 


9 


22.9 


16, 500 


May 




119 


1900-1901. 


16 
1,564 
32 
600 
540 
114 
107 
68 
44 
42 
200 
60 


12 
14 
25 
31 
48 
45 
39 
35 
30 
34 
31 
42 


13 
107 
28 
78 
194 
68 
43 
42 
37 
38 
50 
49 


799 
6,367 
1,772 
4,796 
10,774 
4,181 
2,559 
2,582 
2,202 
2,337 
3,074 
2,916 


July 


123 


October 


August 


123 


November 

December 

January . 


September 

The year 

1908-9. 
October 


119 


240 





21.6 


15,700 


February 

March. . . 


2 

2 

2 
1,335 
575 
302 
235 
180 
157 

2.5 

6 
11 


2 
2 
2 
2 
1 

19 

52 

19 
2.5 
2.5 
2.5 
2.5 


2.00 
2.00 
2.00 
62.7 
171 
107 
133 
84.2 
32.0 
2.50 
2.73 
2.78 




April 


123 


May 


November 

December 


119 


June 


123 


July 


3„860 


August 


February 


9j,500 


September 


6,580 


April 


7,910 
5, 180 


The year 


1,564 


12 


62.3 


44,400 


May.!!!!!!!!!!!! 






1,900 
154 


1901. 


96 
36 
2S 


24 
22 
21 


48 
26 
24 


2,951 
1,547 
1,476 


July 


October 




168 


November 

December 


September 

The year 

1909-10. 
October 


185 


1,335 


1 


49.4 


35,800 


The Deriod 








5,790 










2.5 

29 
827 
154 
103 
109 

74 

11 
6 

85 

33 

15 


2.5 

2.5 

2.5 
63 
26 
26 

6 

2 

2 

2 

2 

4 


2.50 
3.93 
72.0 
102 
41.9 
35.1 
29.4 
9.1 
2.9 
19.7 
3.0 
6.6 




1906. 


80 

234 

321 

120 

185 

94 

3 

1 

1 


1 


10 
20 
3 
1 
1 
1 


5.32 
53.0 
79.9 
35.4 
131 
35.7 
2.23 
1.00 
1.00 


327 

2,940 

4,910 

2,110 

8,050 

2,120 

137 

61.5 

59.5 


154 


January 


November 

December 

January 23-31.... 

February 

March 


234 


February 

March . . . . 


4,430 
1,820 


April 


2,330 


Mav ^ 


2,160 


June 


April 


1,750 


July. 


May .... 


5G0 


August 




173 


September 


July 


1,210 






184 


The period . . 








20,700 


September 

1910-11. 
October 


393 












1905-6. 
October 


1 
200 

78 
122 

63 
2,400 
424 
536 
258 

69 

69 

10.5 


1 

1 
3 
1 
1 
5 
120 
97 
69 
18 

1 


1.0 

13.8 
8.6 
9.3 
15.8 
488 
209 
179 
102 
48.2 
11.7 
4.45 


61.5 

821 

529 

572 

877 

30,000 

12,400 

11,000 

6,070 

2,960 

719 

265 


15 

2 

2 

1,160 

360 

1,840 

240 

89 

137 

111 

1 

19 

1,840 


2 
2 
2 


74 
86 
89 
29 
19 
1 
1 
1 


4.0 
2.0 
2.0 
72.4 
125 
381 
141 
56.2 
30.9 
30.2 
1.0 
2.2 


246 


November 

December 

January 


November 

December 

January 


119 

123 

4,450 


February 

March 


February 

March 


6,940 
23, 400 . 


April 


April 


8,390 
3,460 


May 


May 


Jiuie 


June 


1,840 


July 


July 


1,860 


August 




61.5 


September 


September 

The year 


131 


The year 


2,400 





91.6 


66,300 





70.6 


51,000 



252 SUEFACE WATER OF PACIFIC SLOPE, SOUTHEMsT CALIFORNIA. 

Monthly discharge of Santa Ana River near Mentone, Calif., for 1896-1918 — Continued. 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mima. 



Run-off 
(total in 
acre- 
feet). 



Discharge in second- 
feet. 



mum. mxxra. 



Run-off 
(totalin 
acre- 
feet). 



1911-12. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year.. 

1912-13. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year.. 

1913-14. 

October 

November. . . . 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year.. 

1914-15. 

October 

November. . . . 
December...* 

January 

February 

March 



3 
1 
1 
1 
1 
280 

71 

14 
2.4 
1.2 
8.5 
2.4 



1 

1 

2.4 

2.4 

1.2 

1.2 

1.2 

1.2 



1.0 
1.0 
1.0 
1.0 
30.8 
23.9 
8.36 
1.28 
1.20 
1.83 
1.64 



61.5 
61.5 
58 

1,890 

1,420 
514 
76.2 
73.8 
113 
97.6 



1.2 
2.4 
1.2 
2.4 
4.5 
2.4 
1.8 
1.8 
1.8 
89 
1.2 
1.2 



1.2 
1.2 
1.2 
1.2 
1.2 
1.2 
1.2 
1.8 
1.2 
1.2 
1.2 
.9 



1.20 
1.36 
1.20 
1.32 
1.71 
1.35 
1.52 
1.80 
1.36 
25.1 
1.20 
1.04 



74 
81 
74 
81 
95 
83 
90 
111 
81 
1,540 
74 
62 



31 

c 

,020'' 

2,190 

119 

200 

108 

59 

18 

2 

2 



2 

28 
23 
37 

18 
2 
2 

1 



45.7 
64.3 
33.3 
6.6 
2.0 
1.2 



41 

157 

44 

7,130 

11,600 

3,630 

2,720 

3,950 

1,980 

406 

123 

71 



2,190 



31,900 



1.7 
1.7 
3.0 



1.7 
1.7 
1.8 
1.8 
100 
64 



1.70 
1.70 
1.88 
26.5 

214 

103 



105 
101 
116 
1,630 
11, 900 
330 



1914-15. 

April 

May 

June 

July 

August 

September... 



The year. 



1915-16. 

October 

November... 
December . . . 
January 1-17. 
February 11-29. 

March 

April 

May 

June 

July 

August 

September. . . 



2.0 
2.5 
26 
935 
835 
1,300 
410 
241 
109 
66 
25 



1916-17. 

October 

November 

December . . . 

January , 

February 

March 

April 

May 

June 

July 

August 

September. . . , 



31 
18 
20 



73 
73 

18 



The year . 



1917-18. 

October 

November... 
December . . . 

January 

February 

March 

April 

May 

June 

July 

August 

September. . . 



10 
4.2 

44 
, 1.5 
'37 
3,970 

42 

10 

20 

18 

15 

22 



The year.... 3,970 



121 

198 
100 
38 
4.0 
1.0 



160 

226 

150 
75.2 
15.0 
2.18 



9, 520 
13,900 
8,930 
4,620 
922 
130 



1.0 



58,200 



1.0 
2.0 
2.3 
2.5 
595 
410 
200 
113 
• 77 
26 
17 



1.84 
2.27 
4.16 
90.9 
726 
763 
331 
170 
89.4 
46.5 
20.2 
17.4 



113 
135 
256 
3,060 
27,400 
46,900 
19, 700 
10, 500 
5,320 
2,860 
1,240 
1,040 



7 

1.1 
3.4 
4.2 
4.5 
6 
18 
4.5 
2.8 
3.3 
3.9 
3.0 



19.6 
6.15 
4.49 
8.40 
25.6 
13.6 
32.7 
39.5 
4.63 
5.41 



1,210 
366 
276 
516 

1,420 
836 

1,950 

2,430 
276 
333 
775 
404 



1.1 



10,800 



1.8 
1.1 
1.2 
1.1 
1.2 
1.3 
7.5 
2.8 
2.1 
1.4 
1.5 
2.0 



5.22 
1.52 
4.03 
1.25 
3.85 
469 
16.9 
5.42 
4.06 
3.43 
3.91 
4.58 



321 
90.4 

248 
76.9 

214 , 
28,800 ■ 

101 ! 

333 ' 

242 ; 

211 • 

240 ; 

273 



44.3 31,200 



Note.— For records 1902-1904, see monthly discharge of Santa Ana River and canals near Mentone, 
Calif., p. 258. 



SAISTTA AI^A EIVEK BASIN. 



253 



Combined daily discharge, in second- feet, cf Santa Ana River and canals near Ilentone, 
Calif., for 1909-1918. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June, 


J 


aiy. 


Aug. 


Sept. 


1909. 
1 


42 
40 
40 
40 
39 

41 


82 
78 
75 
157 
105 

95 
651 
437 
256 
211 

233 
313 
632 
340 
302 

282 
256 
233 
233 
233 

233 
191 
191 
191 
173 

157 
157 
142 


142 
142 
142 
128 
- 128 

128 
128 
128 
116 
116 

116 
■ 105 

105 
95 
95 

95 
95 
173 
173 
173 

191 
191 
211 
311 
311 

282 
343 
378 
311 
311 
311 


211 
211 
311 
311 
311 

311 
211 
142 
142 
142 

142 
142 
128 
142 
157 

173 
173 
211 
211 
211 

173 
233 
■ 233 
233 
233 

233 
233 
233 
233 
233 


233 
256 
233 
209 
208 

208 
230 
230 
154 
170 

170 
170 
170 
170 
154 

154 
139 
125 
125 
125 

113 
113 
113 
113 
139 

125 
113 
125 
102 
102 
92 


92 
92 
92 
92 
102 

157 
157 
157 
]00 
100 

105 
105 
105 
105 
105 

94 
89 
82 
97 
89 

82 
84 
82 
82 

82 

80 
80 
78 
76 
76 


76 
74 
76 
72 
72 

72 
72 
73 
Go 
72 

66 
66 
66 
63 
66 

62 
62 
64 
64 
64 

62 
64 
64 

78 
74 

70 
70 
70 
66 
70 
78 




76 
62 

58 
58 
58 

62 
61 
66 
64 
64 

58 
58 
64 
62 
64 

62 
72 
70 
69 
64 

64 
62 
64 
70 
70 

68 
70 
62 
60 
60 
66 


66 


2 . 


58 


3 


66 


4 


54 


5 


56 


6 -- 


53 


7 

8 






39 
39 
37 

65 

51 


58 
58 


9 






56 


10 

11 


58 
66 


12 


50 
68 
101 
66 

62 
60 
51 
50 

48 

79 

L380 

282 

173 

128 

105 
157 
105 
95 

87 
87 


66 


13 


62 


14 


62 


15 


60 


16. 


62 


17 


56 


18. ... 


62 


19 


66 


20 


68 


21 


62 


22 


62 


23 


60 


24 


64 


25 


60 


26 


66 


27 


60 


28 


80 


29 


68 


30 


66 


31 












Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


J 


Lpr. M 


ay. 


June. 


July. 


Aug. 


Sept. 


1909-10. 
1 


64 
64 
68 
62 
56 

56 
50 
50 
62 
60 

58 
62 
62 
60 
62 

62 
60 

58 
58 

58 

60 
52 
48 
54 
56 

56 
56 
58 
54 
56 
54 


58 
58 
54 
54 
52 

52 
50 

48 
52 
85 

56 
50 
52 
60 

77 

62 
56 
56 
54 
54 

3 
3 
54 
52 
48 

60 
66 
48 
56 
60 


52 
54 
56 
44 
46 

52 
52 
54 
497 
641 

173 
142 
93 
79 

76 

74 
68 
62 
40 
68 

74 
66 
70 
80 
80 

158 
160 
76 
72 
72 
897 


a 8, 500 

■"i67" 
129 
219 

185 
165 
181 
181 
164 
164 


112 
110 
110 
121 
99 

116 
114 
111 
139 
179 

177 
166 
131 
136 
94 

94 
94 
94 
99 
90 

99 
98 
92 
92 
92 

90 
88 
90 


90 
92 
98 
100 
102 

98 
98 
98 
98 
94 

94 
94 
109 
109 
99 

103 
105 
104 
103 
104 

104 
105 
105 
100 
108 

114 
96 
98 
131 
119 
118 


122 
140 
107 
98 
97 

90 
89 
90 
89 
90 

132 
137 
141 
141 
142 

141 
131 
130 
103 
95 

88 
88 
79 
79 
84 

84 
79 
84 
90 
89 




89 
89 
89 
89 
89 

90 

87 
77 
89 
87 

87 
87 
87 
87 
S4 

87 
79 
88 
89 
88 

87 
87 
87 
87 
85 

80 
75 
76 
76 
75 
75 


75 

74 
74 
74 
57 

76 
74 
74 
73 
74 

70 
65 
73 

77 
79 

79 

77 
72 
70 
71 

68 
62 
66 
62 
62 

59 
61 
61 
61 
fi2 


59 
60 
59 

58 
58 

65 
61 
61 
61 

58 

57 
64 
58 
66 
68 

85 
85 
74 
74 
63 

63 
63 
69 
72 
66 

60 
60 
68 
70 
65 
65 


57 
59 
60 

58 
59 
61 
61 
64 

60 

57 
58 
61 
57 

58 
60 
59 
70 

68 

70 
68 
66 
64 
62 

61 
65 
64 
65 
62 
95 


73 


2 


73 


3 


74 


4 


58 


5 


55 


6 


59 


7 


59 


8 


64 


9 . .. . 


60 


10 


68 


11 


66 


12 


75 


13 


73 


14 


66 


15 


64 


16 


77 


17 


64 


18 


56 


19 


56 


20 


63 


21 


63 


22 


59 


23 


66 


24 


68 


25 


62 


26 


63 


27 


64 


28 


64 


29 


64 


30 


74 


31 













254 SURFACE WATER OF PACIFIC SLOPE, SOUTHERInT CALIFORl^IA. 

Combined daily discharge, in second-feet, of Santa Ana River and canals near Mentone, ' 
Calif., for 1909-1918.— Continued. 



Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


72 


54 


45 


44 


261 


158 


313 


159 


103 


96 


63 


48 


44 


45 


230 


158 


313 


160 


103 


95 


61 


47 


46 


43 


198 


158 


313 


161 


103 


95 


62 


50 


44 


43 


431 


362 


313 


161 


103 


95 


61 


46 


46 


44 


284 


231 


312 


163 


101 


86 


. 55 


47 


45 


44 


229 


215 


275 


163 


101 


88 


59 


46 


43 


44 


213 


214 


275 


163 


101 


86 


62 


44 


43 


43 


213 


362 


239 


145 


102 


86 


61 


45 


43 


43 


199 


761 


209 


145 


101 


88 


62 


43 


44 


248 


185 


1,900 


210 


129 


101 


83 


66 


44 


45 


130 


172 


1,470 


241 


115 


137 


83 


73 


43 


43 


84 


171 


972 


241 


115 


107 


83 


73 


44 


44 


59 


171 


642 


209 


115 


105 


83 


71 


50 


43 


56 


231 


508 


210 


115 


105 


80 


60 


54 


43 


146 


230 


507 


208 


145 


106 


81 


56 


50 


43 


133 


230 


448 


207 


129 


106 


86 


56 


47 


43 


90 


171 


397 


182 


131 


106 


105 


59 


47 


46 


74 


158 


398 


183 


129 


103 


93 


53 


46 


46 


65 


159 


398 


182 


115 


106 


95 


48 


46 


47 


62 


159 


353 


161 


114 


106 


88 


61 


45 


45 


59 


146 


312 


161 


115 


106 


89 


66 


47 


44 


57 


146 


312 


160 


115 


105 


89 


56 


46 


46 


55 


159 


312 


161 


115 


105 


111 


56 


46 


45 


62 


158 


313 


160 


115 


106 


111 


60 


44 


43 


186 


146 


313 


159 


115 


106 


ill 


65 


53 


45 


127 


146 


313 


160 


115 


96 


111 


67 


50 


45 


103 


158 


313 


160 


114 


95 


73 


61 


50 


44 


76 


158 


313 


160 


113 


95 


78 


61 


45 


44 


1,220 




313 


160 


114 


96 


73 


60 


44 


45 


263 




313 


160 


115 


96 


67 


58 




43 


230 




313 




103 




71 


79 


52 


45 


47 


44 


39 


68.4 


93 


71.4 


63.2 


63 


50 


47 


49 


43 


44 


73.4 


96 


71.4 


52.2 


60 


50 


39 


46 


43 


44 


73.4 


93 


69.7 


55.2 


59 


55 


49 


46 


40 


54 


75.4 


87.5 


67.7 


55.2 


57 


55 


46 


46 


43 


50 


73.4 


87.5 


64.7 


52.2 


55 


52 


48 


46 


42 


351 


75.4 


88.5 


64.7 


48.2 


55 


50 


47 


46 


42 


112 


73.4 


85.5 


64.7 


47.2 


51 


50 


48 


49 


42 


83 


75.4 


88.5 


62.7 


59.2 


52 


51 


48 


47 


40 


66 


92 


94 


60.7 


60.4 


53 


51 


48 


45 


40 


311 


86.5 


94 


61.2 


60.4 


52 


61 


42 


45 


40 


142 


150 


94 


59.2 


59.4 


64 


52 


. 48 


46 


40 


88 


120 


94 


63.2 


63.4 


66 


51 


46 


46 


42 


126 


132 


94 


55.2 


62.4 


66 


51 


44 


44 


40 


102 


135 


94 


61.2 


66.4 


64 


50 


46 


44 


40 


104 


135 


94 


59.2 


65.4 


66 


50 


45 


44 


40 


102 


137 


89 


59.2 


64.4 


66 


50 


46 


46 


42 


89 


135 


88.5 


54.2 


68.4 


68 


50 


48 


43 


42 


78.5 


121 


88.5 


54.2 


61.4 


63 


50 


48 


43 


40 


75.4 


121 


88.5 


54.2 


62.4 


65 


51 


46 


44 


40 


65.4 


110 


84.5 


61.2 


56.4 


62 


50 


46 


42 


41 


73.4 


104 


84.5 


61.2 


59.7 


60 


47 


46 


42 


38 


73.4 


94 


81 


61.2 


58.7 


59 


48 


46 


43 


41 


68.4 


94 


76 


63.2 


61.7 


55 


50 


46 


42 


41 


65.4 


94 


78.9 


65.2 


61.7 


61 


48 


47 


42 


38 


67.4 


94 


78.9 


63.2 


65.7 


64 


48 


45 


42 


38 


67.4 


94 


78.9 


65.2 


65.7 


72 


48 


45 


43 


40 


68.4 


102 


75.9 


68.2 


65.7 


58 


48 


46 


44 


40 


68.4 


101 


75.9 


68.2 


63.7 


57 


48 


51 


43 


39 


68.4 


96 


78.9 


65.2 


65.7 


55 


48 


47 


44 




79.5 


93 


78.9 


73.2 


65.7 


52 




47 


44 




75.4 




77.4 




63.7 



SAKTA AN-A RIVEK BASIN. 



255 



Combined dedly discharge, in second-feet, of Santa Ana River and canals near Mentone, 
Calif., for 1909-1918— Gonthmed. 



Apr. 



May. 



July, 



62 
53 
57 

49 
45 

44 
48 



52 
55 



58 
58 
55 
51 

49 
53 
52 

57 
62 

59 
62 
59 
56 
56 
63 



37 
34 



50 
40 
40 
35 
34 

37 
34 
34 
34 
37 



42 
42 
41 



45 
36 
33 
36 



31 
31 
33 
33 



41 

41 



41 
36 

33 
36 
36 



34 
35 

34 
34 
36 



37 
37 



16 
17 



32 
32 
31 
31 
33 

50 
43 
42 
38 



36 
36 
36 



36 
36 
36 
36 
35 



37 
35 
35 
35 
37 

40 
41 
65 

48 
42 



38 
38 
36 
38 

38 
41 



67 
67 



72 
75 



55 
53 
53 

52 
52 
52 



46 
52 
49 
57 

54 
52 
56 
56 
•56 

56 
58 
58 
61 
65 



64 
65 
59 



56 
60 
56 
56 

51 
54 
56 
56 
54 



56 
59 
51 



58 
62 
66 
64 
61 

61 
63 
63 



62 
60 
59 



60 
55 
55 
55 
55 

53 
53 



57 
56 
59 
54 

62 
62 
57 



54 
52 



53 
58 
56 



61 
63 
66 
61 

57 

61 
56 
51 



61 
62 
62 
60 

64 
64 
66 
64 
60 

60 
56 
52 
30 



62 
54 



99 
57 
52 
47 
57 



53 
58 
56 
58 
61 



61 
59 



49 
56 

54 
56 
59 
57 
59 



55 
50 
52 



31 
29 



22 
22 



22 
18 

24 
21 
105 
36 



31 
29 
30 



31 
32 
30 

30 
30 
30 

27 



30 
30 



30 
27 



27 
27 
27 

27 
27 
29 
29 
26 

26 
26 
27 
27 

27 



27 
35 



35 
32 
32 



. 30 
30 
30 



30 
27 
27 
27 
250 

404 
130 
104 
236 
192 

94 

84 
74 
68 
176 

1,060 
830 
392 
281 
247 
217 



184 
158 
129 
113 



90 
85 
79 
79 
79 

73 

68 



96 

435 

1,370 

2,240 
665 
429 
258 
108 

108 
213 
213 



177 
157 

157 
157 
149 
149 
148 

148 
147 
140 
131 
130 

130 
129 
128 
128 
127 

126 
126 
125 
119 
118 



120 
120 
116 
108 



107 
104 
104 
103 
120 

120 
139 
120 
120 
119 

118 
126 
125 
125 
124 

118 
109 
110 
112 
115 

116 
132 
119 
119 
115 

111 
108 
104 
276 
221 



187 
186 
186 
174 
174 

164 
164 
154 
154 
146 

146 
138 
138 
138 
138 

136 
136 
136 
134 
134 

134 
126 
124 
124 
122 

116 
116 
116 
114 
126 
126 



124 
136 
136 
136 
136 

136 
134 
134 
132 
120 

112 
112 
110 
110 
110 

110 
110 
109 
109 
109 

109 
109 
104 
105 
105 

101 
101 
101 
101 



102 
97 
97 
97 
97 



256 SURFACE WATER OF PACIFIC SLOPE, SOUTHERliT CALIFORNIA. 

Combined daily discharge, in second-feet, of Santa Ana River and caiials near Mentone, 
Calif. , for 1909-1918— Contmued. 



Day. 


Oct. 


Nov. 


Dee. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1914-15. 
1 


67 
78 
78 
57 
57 

57 
57 
62 
55 
55 

55 
55 
62 
62 
62 

62 
62 
62 
57 
50 

51 

47 
58 
58 
58 

58 
58 
58 
58 
58 
57 

70 
70 
70 

65 
65 

C8 
68 
73 
73 
68 

79 
79 
73 
79 
73 

73 
73 
73 
73 
73 

73 

73 
74 

74 
74 

74 
68 
66 
66 
66 
66 


48 
48 
48 
46 
46 

46 
46 
46 
48 
59 

59 
52 
52 
52 

48 

46 
48 
46 
46 
48 

46 
48 
48 
45 
45 

44 
45 
47 
47 
43 

66 
68 
73 
73 
73 

71 

77 
71 
66 
72 

66 
66 
66 
66 
66 

66 
66 
66 
66 
66 

66 
66 
66 
66 
66 

66 
66 
62 
66 
66 


43 

47 
43 
47 

47 

43 
43 
43 
43 
43 

44 
47 
43 
43 
43 

43 
76 
70 
61 
56 

56 
60 
59 
54 
49 

49 
54 
45 
45 
45 
41 

66 
62 
62 
90 

67 

68 
64 
64 
64 
63 

63 
63 
63 
64 
46 

58 
58 
64 
64 
64 

64 
64 
64 
64 
64 

60 
60 
60 
60 
60 
60 


47 
47 
47 
66 
47 

47 
45 

47 
47 
45 

45 
45 
45 

45 
47 

46 
45 
45 
47 
45 

49 
59 
49 
47 
78 

59 
54 
78 
406 
274 
279 

60 
92 
90 
79 
79 

122- 
86 
82 
304 
239 

91 

98 
81 
78 
123 

111 
950 


279 
202 
202 
202 
202 

202 
202 
202 
225 
951 

936 
571 
571 
582 
216 

216 
216 
172 
172 
172 

166 
166 
166 
166 
172 

172 
172 
166 

....... 

700 
700 
700 
700 
700 

700 
700 
835 
835 

835 

700 
700 
835 
835 
835 

700 
595 
595 
595 


172 
172 
172 
163 

168 

168 
138 
132 
129 
144 

144 
144 
144 
144 
144 

144 
189 

180 
180 
180 

180 
181 
225 
228 
254 

228 
204 
204 
282 
254 
228 

595 
595 
595 
595 
1,300 

1,000 
760 
700 
700 
700 

700 
700 
700 
640 
640 

640 
640 
640 
595 
640 

1,090 
1,000 
1,060 
1,090 
1,000 

1,000 
910 
835 
738 
500 
470 


204 
228 
228 
253 
253 

227 
204 
204 
204 
204 

227 
254 
254 
256 
230 

230 
230 
230 
253 
256 

276 
256 
256 
254 

254 

254 
245 
245 
303 
273 

466 
470 
470 

471 
471 

446 
446 
426 
426 
451 

451 
457 
426 
435 
429 

407 
407 
407 
407 
384 

384 
407 
384 
344 
305 

279 
279 
275 

282 
282 


273 
335 
273 
273 
273 

273 
273 
273 
273 
303 

312 
339 
379 
344 
344 

312 
344 
344 
344 
344 

344 
344 
344 

282 
282 

282 
283 
283 
283 
283 
283 

288 
282 
282 
282 
274 

294 
274 
274 
274 
274 

274 
274 
274 
274 
274 

274 
230 
240 
274 
274 

241 
228 
222 
222 
222 

218 
218 
214 
214 
200 
200 


283 
313 
313 
283 
255 

255 
255 
255 
255 
255 

255 
255 
229 
229 
229 

229 
229 
229 
229 
206 

206 
206 
206 
206 
206 

206 
206 

185 
185 
185 

202 

202 
198 
194 
192 

192 
178 
176 
174 
176 

178 
194 
188 
184 
184 

182 
182 
180 
180 
180 

180 
180 
180 
180 

178 

178 
176 
174 
170 
170 


185 
185 
185 
185 
185 

185 
185 
185 
185 
185 

185 
185 
185 
166 
157 

157 
149 
149 
149 
149 

142 
142 
135 
149 
150 

143 
136 
124 
124 

124 
124 

160 
158 
158 
158 
154 

152 
148 
148 
148 
142 

140 
142 
138 
152 

148 

144 
144 
144 
132 
132 

130 
128 
128 
136 
132 

130 
124 
122 
122 
122 
120 


115 
115 
115 
115 
115 

107 
107 
107 
107 
104 

104 
104 
104 
104 
104 

101 
99 
99 
99 
94 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 
89 

118 
82 
110 
110 
110 

no 

108 
106 
112 
114 

116 
110 
72 
110 
112 

114 
114 
114 
114 
108 

108 
106 
106 
104 

104 

106 
108 
108 
108 
106 
106 


89 


2 


89 


3 


89 


4 


89 


5 


89 


6 


88 


7 


88 


8 


83 


9 


82 


10 


82 


11 


82 


12 


82 


13 


82 


14 


82 


15 ... 


82 


16 


82 


17 


82 


18.: 


82 


19 


78 


20 


78 


21 


72 


22 


72 


23 


71 


24 


71 


25 


77 


26 


82 


27 


84 


28 


84 


29 


76 


30 


70 


31 




1915-lG. 
1 


106 


2 . 


104 


3 


104 


4 


102 


5.. 


100 


6 


100 


7 


100 


8 


100 


9 . .. 


104 


10 


104 


11 


104 


12 


104 


13 


104 


14.... 


108 


15 


108 


16 


106 


17 


112 


18 


112 


19 


112 


20 


122 


21 


112 


22 


110 


23 


104 


24 


110 


25 


112 


26 


114 


27 


114 


28 


114 


29 


114 


30 


114 


31 









SANTA ANA EIVEE BASIN. 



257 



Combined daily discharge, in second-feet, of Santa Ana River and canals near MentonCf 
Calif., for 1909-1918— ContinMed. 



Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


114 


112 


79 


85 


67 


114 


118 


164 


87 


92 


98 


122 


106 


79 


85 


67 


112 


110 


160 


86 


92 


105 


124 


106 


79 


90 


67 


104 


110 


158 


86 


91 


103 


114 


106 


79 


88 


67 


102 


110 


162 


86 


90 


107 


106 


104 


79 


82 


78 


98 


110 


166 


86 


87 


105 


122 


94 


79 


82 


78 


98 


110 


166 


86 


87 


104 


111 


94 


79 


81 


78 


96 


110 


162 


82 


92 


106 


109 


94 


79 


80 


68 


96 


69 


166 


82 


92 


108 


110 


92 


79 


80 


73 


96 


111 


154 


82 


92 


108 


104 


90 


79 


81 


73 


104 


118 


152 


82 


92 


111 


99 


89 


79 


83 


73 


104 


114 


146 


86 


92 


113 


98 


92 


79 


83 


73 


102 


112 


142 


81 


92 


133 


98 


92 


79 


84 


73 


100 


112 


142 


81 


92 


123 


94 


92 


79 


83 


74 


99 


112 


138 


82 


93 


113 


105 


86 


79 


83 


74 


98 


118 


136 


91 


94 


111 


117 


82 


79 


83 


74 


97 


122 


136 


91 


93 


109 


115 


86 


79 


73 


72 


96 


126 


134 


18 


92 


106 


115 


82 


79 


84 


73 


96 


122 


128 


72 


92 


104 


114 


82 


79 


144 


82 


96 


118 


124 


86 


91 


93 


110 


82 


79 


99 


86 


99 


118 


128 


86 


91 


92 


107 


82 


79 


95 


93 


100 


120 


112 


91 


91 


92 


104 


82 


79 


93 


202 


100 


120 


102 


92 


91 


92 


103 


82 


79 


85 


178 


100 


122 


102 


94 


91 


94 


103 


82 


79 


84 


140 


98 


126 


102 


95 


92 


109 


104 


82 


100 


84 


254 


97 


130 


106 


94 


94 


110 


108 


82 


86 


84 


180 


102 


136 


102 


94 


94 


106 


111 


79 


86 


83 


148 


106 


136 


96 


93 


93 


106 


106 


79 


81 


73 


122 


114 


158 


100 


92 


102 


104 


104 


79 


86 


73 




122 


166 


99 


92 


98 


104 


109 


79 


86 


90 




130 


166 


93 


88 


96 


103 


112 




86 


72 




126 




92 




93 


103 


104 


81 


70 


60 


51 


51 


126 


88 


76 


84 


88 


104 


90 


70 


65 


51 


49 


130 


84 


84 


89 


88 


103 


90 


74 


66 


51 


51 


126 


84 


76 


87 


90 


102 


90 


33 


70 


51 


49 


120 


100 


77 


87 


88 


100 


85 


44 


69 


56 


49 


108 


92 


81 


89 


86 


98 


83 


21 


69 


61 


104 


110 


96 


81 


89 


86 


96 


90 


51 


60 


65 


2,480 


110 


94 


80 


89 


86 


94 


85 


66 


60 


61 


545 


112 


96 


80 


101 


86 


94 


70 


66 


60 


61 


184 


106 


98 


80 


104 


86 


94 


69 


66 


51 


57 


1,930 


104 


92 


80 


93 


92 


92 


69 


60 


65 


57 


1,770 


102 


88 


83 


87 


88 


93 


74 


60 


65 


65 


3,970 


106 


85 


87 


89 


86 


98 


74 


60 


69 


65 


1,810 


120 


80 


89 


88 


86 


98 


69 


60 


65 


69 


570 


112 


90 


89 


88 


89 


94 


60 


65 


65 


74 


358 


104 


91 


90 


86 


92 


94 


60 


60 


60 


74 


264 


100 


90 


106 


83 


95 


94 


69 


60 


60 


74 


210 


98 


91 


109 


86 


96 


92 


69 


60 


60 


70 


168 


96 


90 


96 


83 


94 


91 


65 


60 


60 


20 


100 


96 


91 


94 


86 


90 


90 


65 


60 


60 


59 


196 


94 


89 


92 


82 


88 


90 


69 


65 


60 


65 


166 


94 


88 


86 


86 


87 


90 


80 


60 


60 


125 


168 


96 


84 


83 


88 


84 


91 


74 


69 


60 


99 


166 


92 


84 


80 


86 


84 


91 


80 


60 


60 


71 


160 


98 


84 


80 


88 


87 


93 


80 


55 


69 


62 


156 


94 


81 


75 


86 


87 


93 


80 


51 


60 


59 


150 


93 


84 


72 


83 


87 


92 


80 


55 


55 


57 


136 


93 


88 


83 


79 


80 


91 


74 


60 


55 


51 


126 


92 


90 


83 


85 


83 


90 


74 


60 


55 




126 


92 


90 


83 


85 


83 


90 


74 


60 


51 




126 


88 


88 


84 


87 


92 


85 




55 


51 




128 




81 




85 


104 



Note.— See pp. 262-270 for tables of daily discharge of Southern California Edison Go's, canal near 
Mentone and pp. 273-278 for tables of Greenspot pipe line. Previous to September 7, 191K discharge of 
Greenspot pipe line was not included in combined discharge tables. 



142131°— 21'— wsp 447- 



-17 



258 SURFACE WATER OF PACIFIC SLOPE, SOUTHERISJ' CALIFORNIA. 



Monthly 



of Santa Ana River and canals near Mentone, Calif., for 1896-1898 and 
1902-1918. 

[Drainage area, 182 square miles. «J 



July 

August .... 
September . 



Discharge in second-feet. 



October 

November. . 
December. . 

January 

February . . 

March 

April 

May 

June 

July 

August 

September . 



The year.. 



October 

November . . 
December. . 

January 

February. .. 

March 

April 

May 

June 

July 

August 

September . 



October 

November. 
■ December. . 



January 

February. . 

March 

April 

May 

June 

July 

August 

September . 



The period.. 



October 

November. 
December. . 

January 

February . . 

March 

April 

May 

June 

July 

August 

September. 



104 
585 
405 
190 
113 
8<i 
102 
100 



270 
59 



240 
485 
71 



277 

105 

i,451 

i,908 

113 

79 



71 
37 



185 
124 
150 
76 
80 
83 
'/5 
67 



48 
40 
39 
61 



33 
26 
25 
24 



22 
33 

48 
148 
352 
92 
64 
51 
55 



Per 
square 
mile. 



0.42 
.39 

.38 



.39 
.20 
.21 
.37 
1.02 
.68 



.12 

.18 



.81 
1.93 



Depth in 

inches on 

drainage 

area. 



0.48 
.45 
.42 



.24 
.43 
l.OG 



.21 
.31 

.27 
.25 
.23 
.34 

.29 
.28 



.16 
.13 



.31 
.23 



.15 
.14 
.21 
.27 
.93 
2.15 
.59 
.39 
.32 
.35 
.32 



a See footnote on page 261. 



SAl^TA ANA EIVEPv BASIS', 



259 



Monthly discharge of Santa Ana River and canals near Mentone, Calif., for 1896-1898 and 
1902-19 IS—QonMimed. 





Discharge in second-feet. " 


Run-off. 


Moath. 


Maximum. 


Minimum. 


Mean. 


Per 
square 
mile. 


Depth in 

inches on 

drainage 

area. 


Totalin 
acre-feet. 


1903-4. 
October ... 


57 
52 
30 
28 
94 
280 
106 
48 
50 
52 
56 
58 


30 
27 
25 
24 
26 
28 
36 
34 
37 
37 
35 
40 


47 
30 
27 
26 
33 
64 
53 
41 
44 
45 
46 
50 


0.26 
.16 
.15 
.14 
.18 
.35 
.29 
.23 
.24 
.25 
.25 
.27 


0.30 
.18 
.17 
.16 
.19 
.40 
.32 
.27 
.27 
.29 
.29 
.30 


2,890 




1,785 




1,660 




1,599 




1,898 


March 


3,935 


AT>vil 


3, 154 


May .":::.::: : 


2,, 521 




2,618 


Jmy 


2,767 




2,828 




2,975 






The veiii' . 


280 


24 


42.2 


.232 


3.14 


30,600 






1904-:.. 
October . 


56 
22 
23 
108 
234 
321 
120 
256 
94 
69 
82 
79 


22 

17.7 

18.4 

22 

26 

48 • 

63 

91 

64 

57 

52 

52 


48 

20 

20 

36.6 

97.6 
130 

90.5 
172 ^ 

62! 9 
66.8 
68.3 


.26 

.11 

.11 

.201 

.536 

.714 

.497 

.945 

.427 

.346 

.367 

.375 


.30 
.12 
.13 
.23 
.56 
.82 
.55 
1.09 
.48 
.40 
.42 
.42 


2,951 




1,180 




1,230 




2,251 




5,420 


March 


7,993 


April . . * 


5,385 


May 


10,580 




4,624 


July 


3.867 




4,107 




4,064 






The year 


321 


17.7 


74.2 


.408 


5,52 


53, 700 


1905-6. 


67 
250 
107 
181 
121 
2,440 
495 
536 
329 
140 
111 

74 


42 
30 
31 
34 
33 
51 
186 
163 
135 
90 
67 
58 


49.2 
47.5 
38.4 
46.8 
63.1 

530 

274 

245 

172 

119 
80.5 
64.1 


.270 
.261 
.211 

.2.57 
.347 
2.91 
1.50 
1.35 
.945 
.654 
.442 
.352 


.31 
.29 
.24 
.30 
.36 
3.36 
1.67 
1.56 
1.05 
.75 
.51 
.39 


3.025 
2:827 
2,362 
2,880 










3,500 

32,600 




April 


16,300 


Mav 


15,100 


June 


10,200 
7,320 


Julv 


August 


4,950 


September 


3,810 




2,440 


30 


144 


.793 


10.79 


105,000 




19IW-7. 
October . 


71 
69 
859 
851 
776 
1,960 
776 
352 
186 
154 
109 
132 


66 
54 
56 
86 
128 
184 
265 
186 
142 
109 
78 
62 


71.4 
60.3 

111 

239 

292 

681 

552 

236 

171 

135 
90.2 
73.2 


.392 
.331 
.610 
1.31 
1.60 
3.74 
3.03 
1.30 
.940 
.742 
.496 
.402 


.45 
.37 
.70 
1.51 
1.67 
4.31 
3.38 
1.50 
1.05 
.86 
.57 
.45 


4,390 
3.590 
6,820 
14,700 
16,200 
41,900 




December 




Februarv 


March 


April 


32,800 
14,500 


Mav 




10 200 


July 


8,300 
5 550 


August 


September 


4 ZGQ 






The year 


1,960 


54 


226 


1.24 


16.82 


163 000 






1907-S. 
October 


126 
148 
74 
267 
252 
198 
155 
120 
69 
71 
70 


68 
64 
55 
53 
73 
83 
79 
63 
55 
58 
54 
44 


84.2 

119 
60.4 
82.1 

135 

125 
98.9 
76.3 
61.6 
64.3 
63.8 
58.8 


.463 
,654 
.332 
.451 
.742 
.687 
.543 
.419 
. 338 
. 3.53 
.351 
.323 


.53 
.73 
.38 
.52 
.80 
.79 
.61 
.48 
.38 
.41 
.40 
..36 


5,180 
7,080 
3,710 
5,050 

7 760 


November 


December 


January.. 


February 


March 


7 690 


April.. 


5' 880 
4,690 
3,670 
3,950 
3 920 


May 


Juiie 


July 


August . . 


September 


3,500 




The year 


267 


44 


85.8 


.471 


6.39 


62, 100 





260 SURE ACE WATER OF PACIFIC SLOPE, SOUTHER]^ CALIFORNIA. 



Monthly discharge of Santa Ana River and canals near Mentone, Calif., for 1896-1898 and 
1902-1918— Conthmedi. 



1908-9. 

October 

November 

December.. 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year 

1909-10. 

October 

November 

December 

Jan. 23-31 

February 

March 

April 

May 

Jime 

July 

August 

September 

The year 

1910-11. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year 

1911-12. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year 

1912-13. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year 



Discharge in second-feet. 



67 
58 
L,383 
651 
378 
311 
256 
157 
78 



85 
897 
219 
179 
131 
142 
90 
79 
85 
95 
77 



54 
47 
1,220 
431 
1,900 
313 
163 
137 
111 
71 
92 



61 
51 
49 
44 
351 
150 



63 
50 
45 
50 
78 
75 
75 
66 
66 
101 
68 
65 



Minimum. Mean. 



92 

76 



3 
40 
129 
88 
90 
79 
75 
57 
57 
53 
55 



43 
43 
43 
146 
158 
159 
103 
95 
67 
58 
57 



43 



51 

47 

39 

42 

38 

39 

68.4 

75.9 

54.2 

47.2 

53.2 

50.4 



16 
35 
46 
51 
45 



42.8 
43.4 

120 

238 

183 

209 

158 
97.3 
69.0 
64.2 
61.8 



112 



57.9 
53. 

1.38 

173 

112 

103 

105 
84.9 
69.4 
65.0 
62.5 
65.0 



61.4 
47.0 
44.4 

12S 

197 

453 

213 

130 

104 
89 

64.5 
65.8 



133 



50.5 
46.3 
44.6 
40.7 
93.6 
101 
86.5 
63.1 
60.7 
60.2 
59.2 



54.8 
39.1 
36.6 
34.2 
44.6 
54.3 
61.4 
58.4 
57.5 
66.3 
58.5 
57.7 



52.0 



Per 

square 
mile. 



0.318 
.235 
.238 
.659 
1.31 
1.01 
1.15 
.868 
.535 
.379 
.353 
.340 



.616 



.318 
.291 
.747 
.951 
.615 
.566 
.577 
.466 
.381 
.357 
.343 
.357 



.337 
.258 
.244 
.703 
1.08 
2.49 
1.17 
.714 
.571 
.489 
.354 
.362 



Depth in 

inches on 

drainage 

area. 



0..37 
.26 
.27 
.76 
1.36 
1.16 
1.28 
1.00 
.60 
.44 
.41 
.38 



.37 
.33 
.86 
.32 
.64 
.65 



.43 
.41 
.40 
.40 



.29 

.28 
.81 
1.12 
2.87 
1.30 
.82 
.64 
.56 
.41 
.40 



SANTA ANA RIVER BASIN. 



261 



Monthly discharge of Santa Ana River and canals near Mentone, Calif., for 1896-1898 and 
1902-1918— Continued. 







Discharge in 


second-feet. 




Run-off. 


Month. 


Maxi- 
muju. 


Minimum. 


Mean. 


Per 

square 
mile. 


Depth in 

inches" on 

drainage 

area. 


Total in 
acre-feet. 


1913-14. 


61 
105 

37 
1,060 
2,240 
200 
276 
187 
136 
102 

79 

77 


39 
18 
26 
27 
66 
108 
103 
114 
101 
78 
69 
56 


53.8 
33.5 
28.8 

170 

275 

139 

125 

142 

115 
87.3 
71.1 
63.8 


0.30 
.18 
.16 
.93 

1.51 
.76 
.69 
.78 
.63 
.48 
.39 
.35 


0.35 
.20 
.18 
1.07 
1.57 
.88 
.77 
.90 
.70 
.55 
.45 
.39 


3,310 
1,990 
1,770 








. 10,500 
15,300 
8,550 


February 


March 




7,440 
8,730 
6,840 
5,370 
4,370 
3,800 


May 




July 




September 






2,240 


18 


108 


0.59 


a 8.01 


78,000 




1914-15. 
October 


78 
59 
76 
406 
951 
282 
303 
379 
313 
185 
115 


47 
43 
41 
45 
166 
129 
204 
273 
185 
124 
89 
70 


59.1 
47.9 
49.2 
76.5 

287 

181 

242 

307 

235 

160 

100 
81.3 


.31 

.25 
.26 
.40 
1.52 
.96 
1.28 
1.62 
1.24 
.85 
.53 
.43 


.36 
.28 
.30 
.46 
1.58 
1.11 
1.43 
1.87 
1.38 
.98 
.61 
.48 


3,630 




2,850 
3,030 
4,700 
15,900 
11, 100 


December 






April... 


14,400 
18,900 
14,000 
9,840 
6,150 


May 


June 


July 


August 




4 840 






The year 


951 


41 


151 


ffl.80 


a 10. 84 


109 000 






1915-16. 
October 


79 

73 
90 
950 
835 
1,300 
471 
294 
202 
160 
118 
122 


65 
62 
46 
60 
595 
470 
275 
200 
170 
120 
72 
100 


71.4 
67.5 
63.1 

163 

726 

768 

399 

254 

183 

140 

108 

108 


.378 
.357 
.334 
.862 
3.84 
4.06 
2.11 
1.34 
.968 
.741 
.571 
.571 


.44 
.40 
.39 
.54 
2.71 
4.68 
2.35 
1.55 
1.08 
.85 
.66 
.64 


4,390 
4,020 
3,880 
5,500 


iMovember 

December ... 




February 11-29 


27,400 
47,200 
23,700 
15,600 
10,900 
8,610 
6,640 
6,430 


March 


April 


May 




July 




September 




1916-17. 
October 


124 
112 
100 
144 
254 
130 
166 
166 
95 
102 
133 
106 


94 
79 
79 
72 
67 
96 
69 
92 
18 
87 
92 
97 


109 
89.0 
80.9 
85.5 
99.5 

103 

121 

131 
84.8 
92.4 

106 

101 


.577 
.471 
.428 
.452 
.526 
.545 
.640 
.693 
.449 
.489 
..561 
.534 


.67 
.53 
.49 
.52 
.55 
.63 
.71 
.80 
.50 
.56 
.65 
.60 


6,700 


November 


5,300 
4,970 




January 


5,260 
5,530 
6,330 




March 


April 


7,200 


May 


8,050 
5,050 
5,680 
6,520 
6,010 


Jtrae 


July 




September . . 




The year 


254 


18 


-100 


.529 


7.21 


72,600 






1917-18. 
October 


104 
90 
74 
70 
125 
3,970 
130 
100 
109 
104 
104 
103 


85 
60 
21 
51 
20 
49 
88 
81 
72 
79 
83 
83 


94.2 
75.7 
58.6 
61.1 
63.6 

536 

104 
88.7 
84.6 
87.4 
88.5 
89.2 


.498 
.401 
.310 
.323 
.337 

2.84 
.550 

4.69 
.448 
.462 
.468 
.472 


.57 
.45 
.36 
.37 
.35 
3.27 
.61 
.54 
.50 
.53 
.54 
.53 


5,790 
4,500 
3,600 
3,760 
3,530 


November 


Decem-ber 


January 


February 


March 


33,000 
6,190 
5,450 
5.030 


April 


May 


June 


July . 


5; 370 
5,440 


August 


September 


5,310 






The year 


3,970 


20 


120 


.635 


8.62 


87,000 







o Drainage area 189 square miles for new site, beginning Oct. 1, 1914. 

Note.— For discharge January, 1899, to December, 1901, see tables of monthly discharge of Santa Ana 
River near Mentone. Discharge of Greenspot pipe line not included prior to September 7, 1911. 



262 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORISTIA. 



SOUTHERN CALIFORNIA EDISON CO.'S CANAL i AND GREENSPOT PIPS LINE. 
NEAR MENTONE, CALIF. 

Location.— At Southern California Edison Co.'s power plant at mouth of canyon, 2| 
miles below intake on Santa Ana River, and about 3 miles northeast of Mentone, 
San Bernardino County. 

Records available. — 1896 to September 30, 1918 (not complete). 

Gage.— Hook gage above weir at end of flume below tailrace, on right bank of Santa 
Ana River about 300 feet west of power plant. 

Discharge. — Determined from gage heights which give head on 10-foot rectangular 
weir. The flood of January, 1916, destroyed flume and weir. Since that time 
discharge has been computed from records showing kilowatt output of power plant. 

Extremes of discharge. — 1896-1918: Maximum mean daily discharge recorded, 
97 second-feet March 16, 1905; no flow during short periods in nearly every year. 

Diversions.— Since 1903, Greenspot pipe line has diverted water from this canal for 
irrigation, but the discharge was not included in record for canal. September 7, 
1911, the intake was changed to forebay of canal, and since this date a record of 
the diversion has been reported. 

Accuracy. — Discharge determined from power-plant record, computed on the assump- 
tion that 1 second-foot develops 18.9 kilowatts. Record excellent when weir 
was used; remainder of record good. 
The intake of the canal is at Southern California Edison Co.'s power plant No. 2, 

2| miles above the Mentone plant at the mouth of the canyon. All the water except 

that taken by the Greenspot pipe line is first used for development of power; after 

it leaves the Mentone power house it is conducted across Santa Ana River in a 

flume and discharged into a lined canal, from which it is distributed for irrigation. 

Before it enters the irrigation canal it passes through three power plants. 

Daily discharge, in second-feet, of Southern California Edison Co.^s canal near Mentone^ 
Calif., for 1901-1918. 



Day. 


Mar. 


Apr. 


May. 


Day. 


Mar. 


Apr. 


May. 


Day. 


Mar. 


Apr. 


May. 


1 


1901. 






4.6 
4.6 
4.6 
4.6 
4.6 

4.0 
4.0 
4.0 
4.0 
3.8 


1901. 
11 


6.0 
6.0 
6.0 
6.0 
6.0 

5.0 
4.0 
4.0 
3.5 
3.5 


3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
2.5 
2.5 
2.5 
2.5 


3.8 

3.8 
3.8 
3.8 
3.8 

3.8 
3.8 
3.8 
3.8 
3.8 


1901. ■ 
21 


3.5 
3.5 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 
3.0 


2.5 

2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
4.6 


3.8 


2 






12 


22 


3 8 


3 . - 






13 


23 


3.8 


4 






14 


24 


3.8 


5 






15 


25' 


3.8 


6 




3.0 
3.0 
3.0 
3.0 
3.0 


16 


26 


3.8 


7 




17 


27 .... 


3.8 


8 




18 


28 


3.8 


9 




19 


29 . 


3.8 


10 




20 


30 


3.8 










31 


3.8 









Day. 


Mar. 


Apr. 


Day. 


Mar. 


Apr. 


Day. 


Mar. 


Apr. 




1902. 


12 


11 
15 
15 
15 
15 

15 
15 
15 
15 
15 


11.. 
12 


1902. 




15 
15 

15 i 
15 

» 


21 


1902. 


13 
14 
14 


13 


2 






22 


13 


Q 




13 


13 
15 
15 

13 
14 
14 
14 
14 


23 


12 


I 




14 


24 




5 


12 
11 


15 


25 






6 


16 


26 






7 


17 


27 






g 




18 


28 






9 




19 


29 






10 






20 


30 .... 














31 














1 Published in early reports as Santa Ana canal and Mentone Power Co.'s canal and later as Pacific Light 
& Power Corporation's canal. 



SAKTA ANA EIVEPv BASIN, 



263 



Daily discharge, in second-feet j of Southern California Edison Co.^s canal near Mentone, 
Calif. , for 1901-1918— Gontimied . 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


1903. 


3 
3 
3 
3 

4 

10 
9 
9 


3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

3 


2 
2 
2 
2 

2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 






1903. 
16 


9 
9 
9 
9 
9 

9 
9 
5 
5 
5 

4 
4 


2 

2 

2 
2 
2 
2 
2 

2 
2 
2 


2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 






2 


17 






3 


18 






4 


19 







5 


20 






6 


21 ... 






7 


22 






8 . . . 


23 






9 


24 






10 


25 






11 






26 






12 






27 






13 






28 






14 






29 








15 






30 
















31 

























Day. 



Apr. 



25.3 
23.5 
23.5 
23.5 
23.5 

21.6 
23.5 
24.4 
24.4 
24.4 

24.4 
25.3 
24.4 
23.5 
23.5 

24.4 
24.4 
24.4 
24.4 
25.3 

23.9 
25.6 
24.4 
25.3 
24.4 

25.6 
23.5 
23.5 
23.5 
23.5 
23.5 



22.5 
22.5 
23.5 
24.4 
32.3 

27.5 
25.6 
25.6 
25.3 
27.5 

27.5 
27.5 
25.6 
25. f 
25.6 

26.6 
30.4 
29.4 
28. ( 
32.3 

27.5 
25.6 
25.6 
25. ( 
25. ( 

25.6 

25.3 

.0 

.0 



13.3 
14.0 
13.3 
11.8 
12.5 

12.5 
12.9 
10.3 
10.3 
10.3 

18.1 
18.1 
13.3 
13.3 

11.8 

11.8 
13.3 
15.2 
14.8 
33. 

18.1 

19.8 

.0 

.0 

.0 

.0 
.0 
.0 

18.1 
.0 

18.1 



0.0 
24.4 
23.5 
22.5 
22.5 

22.5 
22.5 
24.4 
21.6 
19.8 

19. J 
19. i 
14.8 
21. ( 
UA 

14.8 

14.0 

.0 

.0 

.0 

32.3 
32.3 
19.8 
17.3 
17.3 

16.4 
11.8 
14.0 
10.3 
10.3 



11.8 
11.8 
11.8 
9.6 
10.3 

9.0 
9.0 
10.3 
10.3 
10.3 

7.0 
21.6 
21.6 
19.8 
19.0 

20.1 
21.6 
23.5 
23.5 
25.3 

21.6 
22.5 
20.1 
22.5 
22.5 

25.3 
22.5 
21.6 
23.5 
22.5 
22.5 



21.2 
22.5 
25.3 
25.3 

28.4 

27.5 
39.5 
28.4 
27.5 
27.5 

22.5 
21. ( 
21. ( 
21.1 
23.5 

25.3 
23.5 
23.5 
23.5 
23.1. 

23.5 
23.5 
23.5 



23.5 
23.5 



21.6 

21.6 

.0 

.0 
.0 
.0 
.0 
10.3 

23.5 
25.3 
25.3 
25.3 
25.3 

25.3 
25.3 
25.3 
23.5 
23.5 

23.5 
23.5 
23.5 
21.6 
21.6 

21.6 
21.6 
23.5 
23.5 
25.3 
25.3 



264 SUKFACE WATER OF PACIFIC SLOPE, SOUTHERiq- CALIFORNIA. 

Daily discharge, in second-feet , of Southern California Edison CoJs canal near Mentone, 
Calif., for 1901-1918— Continued. 



Apr. 



July. 



Aug. 



59 
58 
59 



37 
49 
47 
38 
37 

38 
38 
51 
47 
47 



18.] 
18.] 
18.] 
18.] 
18.] 

18.1 
18.] 

18.] 



18.1 
18.] 
18.] 
18.] 
18.] 

18.] 
18.] 
18.] 
18.] 
17. J 



18.1 
17.5 
17.5 

17. c 

17. 

16. 

19. 

17. 

19. 



22 
21 
21 
21 



31 
31 



33 

25 



40 
31 

29 
27 
25 
25 
25 
25 



25 
64 
64 



22 

42 
37 



43 
26 



29 
35 



32 
42 
70 
70 

70 

74 
74 



58 
51 



57 
57 
54 
51 



97 
78 






78 
66 
78 
78 



85 

85 



5? 





63 

72 
78 
78 



43 





71 



56 
58 

73 
51 

56 



76 
76 
76 



71 
71 
71 



32 
29 



61 

58 
58 



61 
63 



63 
63 
63 
61 
61 

61 
61 
61 



53 
53 
51 
61 
61 

61 
63 
63 



63 
63 



81 
66 



73 
73 

73 
76 
76 
76 
73 
73 



51 
51 
56 



56 
46 



46 
61 



56 
51 



43 
41 



41 

46 



46 
41 



32 
32 
32 
32 



41 
29 

29 
30 
32 



29 
29 

34 
32 
30 
29 
30 

30 
41 

50 



34 
32 
34 
32 
32 

32 
32 
32 
32 
30 

32 
32 
29 
29 
32 



32 
25 
25 
25 
25 

25 
29 
28 
30 
29 
27 



34 
34 
34 
34 
34 



35 

45 



37 
59 
30 



37 
37 
41 

38 
35 
35 
33 
33 
33 



32 
32 
32 
32 

35 
35 
35 
44 
41 

42 
52 



53 
51 
49 



52 
51 



50 
50 



40 
27 
43 



55 
71 
35 

34 
25 
55 
34 
21 
27 




56 
55 



52 
65 
70 
70 



73 

74 



71 

72 



71 
70 

71 
71 
71 
71 



70 

71 
71 



71 
70 
72 
71 



70 
70 



71 
71 
71 



64 




70 
70 
70 
70 
70 

70 
70 
71 



70 

72 
71 



72 
72 
72 

72 



72 
72 
72 



70 
71 



71 

72 
72 



72 
72 



72 
72 



70 
70 
66 



SANTA ANA RIVER BASIN. 



265 



Daily discharge, in second-feet, of Southern California Edison Co.'s canal near Mentone, 
Calif., for 1901-1918— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1906-7. 
1 


64 
64 
64 
63 
63 

63 
61 
61 
61 

61 

61 
61 
61 
61 
61 

61 
61 
64 
63 
63 

67 
67 
67 

67 
67 

67 
66 
64 
68 
67 
67 

64 
64 
63 
68 
77 

73 
73 
69 
64 
66 

64 
64 
64 
64 

67 

72 
72 
73 
71 
71 

64 
70 

74 
76 
76 

76 
76 
76 
76 
76 
76 


67 
60 
60 
62 
64 

66 
66 
56 
60 
60 

60 
60 
58 
54 
57 

54 
54 
56 
56 
54 

57 
53 
53 
53 
52 

52 
59 
56 
57 
62 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
70 

70 
65 
64 
60 
64 


62 
61 
70 
71 
71 

72 
67 
60 
60 
68 

61 
59 
74 
72 
72 

65 
68 
65 
65 
59 

59 
59 
56 
61 
59 

76 
74 
74 
74 
73 
74 

60 
60 
60 
59 
57 

59 
67 
62 
59 
60 

72 
62 
61 
61 
60 

60 
60 
59 
59 
59 

56 
56 
55 
54 
55 

55 
54 
. 55 
55 
55 
55 


76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 

'"'76' 

76 
76 
76 
76 

76 

76 
76 
76 
76 
76 
76 

55 
55 
55 
55 
53 

53 
53 
53 
53 
53 

53 
53 
55 
63 
63 

61 
61 
61 
61 
55 

55 
57 
57 
70 
72 

70 
76 






76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

» 76 
76 
76 
76 
76 

76 
76 
76 

64 




76 

78 
78 
78 
78 
76 

76 
78 
78 
76 
78 

78 
78 
78 
78 
78 

78 
78 
78 
78 
78 

78 
78 
78 
78 


76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
77 

58 
56 
66 
68 
72 

72 
74 
66 
77 
77 
76 

78 
78 
78 
78 
78 

76 

?^ 

77 

77 

76 
74 
76 

77 
77 

77 
77 










74 

74 
77 
77 
77 
77 


76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
73 

76 

77 
77 
77 
77 
77 

77 

i 

74 

74 

77 
77 
74 
77 

77 
77 
77 
77 
74 

77 
77 
77 
77 
77 

77 
77 
77 
77 
77 


76 
76 
76 
76 

74 

74 
74 
74 
74 
74 

74 
74 
74 
74 
74 

74 
74 
74 




68 
70 
70 
70 

70 
70 
70 
70 
70 
70 

77 
77 
77 
77 
77 

77 
77 
77 
76 
77 

74 
77 
76 
73 
71 

73 
72 
66 
66 
64 

66 
64 
61 
63 
61 

63 
64 
62 
61 
67 
71 


70 
70 
70 
70 
70 

70 
70 
70 
70 
70 

70 
70 
70 
70 
70 

70 
70 
70 
70 
70 

70 
70 
70 
70 
70 

70 
70 
70 
70 
70 

67 
62 
62 
62 
62 

60 
60 

58 
57 
57 

62 
65 
62 
02 

58 

57 
56 
56 
53 
56 

56 
56 
56 
56 
57 

60 
64 
64 
64 
62 


69 
69 
69 
69 
69 

69 
69 
69 
69 
69 

69 
69 
69 
69 
69 

69 
69 
69 
69 
69 

69 
69 
69 
69 
69 

69 
69 
69 
69 

69 

60 
57 
57 
56 
57 

57 
58 
61 
63 
63 

66 
68 
68 
64 
66 

64 
64 
64 
59 
59 

56 
58 
61 
63 
67 

63 
61 
64 
69 
69 
68 


69 
69 
69 
69 
69 

69 
69 
69 
69 
69 

69 
69 
69 
69 
69 

69 
69 
69 
69 
69 

69 
69 
69 
69 
69 

69 
69 
69 
69 
69 
69 

60 
61 
56 
62 
62 

63 
66 
52 
66 
62 

66 
60 
68 
68 
68 

64 
62 
59 
63 
63 

58 
59 
62 
62 
61 

61 
61 
61 
60 
60 
60 


69 


2 


69 


3 


69 


4 


69 


5 


69 


6 

7 

8 


69 
69 
65 


9.. 


65 


10 


65 


11 


60 


12 


58 


13 


62 


14 


62 


15 


62 


16 


62 


17 


64 


18 


66 


19 


66 


20 





21 


66 


22 


64 


23 ... 


66 


24 


65 


25 


68 


26 


64 


27 


66 


28 


64 


29 


68 


30 


64 


31 




1907-8. 
1 . . 


59 


2 


60 


i.............. 


60 
60 


5 


58 


6 


59 


7 .. 


59 


8 


59 


9 ... ... 


59 


10 


59 


11 


59 


12 


59 


13 


59 


14 


69 


15 


59 


16 


59 


17 . . 


69 


18 


60 


19 


59 


20 


58 


21 


58 


22 


56 


23 


56 


24 


75 


25 


55 


26 


49 


27 


44 


28 


43 


29 


42 


30 


44 


31 






266 SURFACE WATER Or PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Southern California Edison Co.'s canal near Mentone, 
Calif , for 1901-1913— QovAinued. 



Day. 



Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


58 


65 


40 


40 


76 


76 


76 


76 


73- 


74 


73 


59 


48 


38 


38 


76 


76 


76 


76 


73 


72 


60 


60 


45 


56 


38 


74 


76 


76 


76 


73 


73 


56 


60 


41 


56 


38 


76 


76 


76 


74 


73 


70 


55 


59 


40 


50 


37 


76 


76 


76 


73 


73 


70 


55 


45 


40 


47 


39 


76 


76 


76 


73 





70 


60 


45 


40 


41 


37 


76 


76 


76 


73 





70 


62 


53 


40 


43 


37 


56 


76 


76 


73 





73 


63 


48 


39 


43 


35 


76 


76 


76 


73 


60 


64 


61 


66 


39 


43 


63 


76 


76 


76 


73 


60 


70 


61 


61 


40 


. 41 


49 


76 


76 


76 


73 


65 


64 


55 


59 


40 


41 


48 


76 


76 


76 


73 


65 


64 


55 


62 


37 


41 


66 





76 


76 


73 


65 


64 


61 


66 


39 


40 


68 





76 


76 


73 


65 


63 


60 


66 


38 


40 


64 





76 


76 


73 


65 


63 


61 


63 


40 


40 


60 


76 


76 


76 


73 


65 


59 


60 


62 


38 


40 


58 


76 


76 


76 


73 


78 


59 


66 


64 


40 


37 


4,9 


76 


76 


76 


73 


76 


62 


68 


54 


38 


36 


48 


76 


76 


76 


73 


78 


62 


63 


46 


37 


36 


46 


76 


76 


76 


73 


78 


62 


62 


46 


37 


40 


77 


76 


76 


76 


73 


76 


60 


61 


52 


38 


41 


48 


76 


76 


76 


73 


81 


61 


60 


45 


38 


41 


76 


76 


76 


76 


73 


80 


61 


61 


52 


49 


41 


76 


76 


76 


76 


73 


80 


75 


68 


48 


39 


40 


76 


76 


76 


76 


73 


80 


71 


67 


48 


39 


41 


76 


76 


76 


76 


73 


78 


67 


65 


50 


40 


39 


76 


76 


76 


76 


73 


78 


68 


67 


53 


41 


38 


76 


76 


76 


76 


73 


75 


67 


59 


57 


38 


38 


76 




76 


76 


73 


74 


64 


57 


62 


41 


37 


76 




76 


76 


73 


74 


68 


57 


61 




38 


76 





76 




73 




73 


64 


62 


56 


50 





74 


64 


74 


78 


73 


57 


55 


61 


55 


51 





72 


66 


66 


78 


72 


58 


57 


65 


52 


54 





72 


72 


64 


78 


72 


57 


68 


59 


52 


41 





73 


74 


72 


78 


72 


56 


51 


53 


50 


44 





73 


76 


71 


78 


55 


56 


55 


54 


50 


50 





68 


72 


72 


79 


74 


63 


56 


47 


48 


50 





76 


72 


78 


76 


72 


59 


57 


47 


46 


51 





73 


72 


79 


66 


72 


59 


59 


59 


49 


72 


39 


76 


72 


78 


78 


71 


59 


59 


57 


56 


66 


45 


76 


68 


79 


76 


72 


56 


62 


56 


53 


76 


57 


74 


68 


79 


76 


6S 


55 


58 


59 


47 


76 


52 


63 


68 


74 


76 


63 


62 


55 


60 


49 


74 


58 


68 





78 


76 


71 


56 


56 


58 


57 


73 


54 


73 





78 


76 


71 


64 


59 


59 


58 


73 


58 


68 


73 


79 


73 


73 


68 


55 


60 


59 


71 


49 


68 


77 


78 


76 


73 





56 


58 


58 


65 


66 


68 


79 


78 


76 


71 





58 


56 


53 


59 


62 


68 


78 


77 


77 


66 





57 


56 


51 


38 


55 


73 


77 


77 


78 


64 





68 


55 


51 


65 


55 


64 


78 


77 


77 


65 





66 


57 


.8 


71 


57 


73 


78 


77 


76 


66 





68 


49 


.8 


63 


57 


72 


79 


77 


76 


60 





66 


45 


51 


68 


64 


66 


79 


73 


76 


64 


43 


64 


51 


49 


78 


66 


66 


74 


73 


76 


60 


54 


62 


54 


46 


78 


65 


66 


65 


73 


74 


60 


55 


60 


54 


57 


77 


62 


64 


71 


78 


78 


57 


54 


59 


54 


63 


79 


62 


62 


70 


73 


73 


59 


54 


63 


55 


46 


74 


78 


64 


72 


78 


74 


59 


66 


62 


52 


5.3 


70 


78 




68 


79 


74 


59 


68 


63 


54 


58 


70 


79 




71 


78 


73 


60 


63 


60 


51 




70 


79 




70 




73 




63 


62 



SAN^TA ANA KIVER BASIN". 



267 



Daily discharge, in second-feet, of Southern California Edison Co.'s canal near Mentone, 
Calif. , for 1901-1918— Gontinued. 



Day. 



Oct. 


Nov. 


68 


52 


59 


46 


57 


45 


f.S 


48 


57 


44 


51 


45 


55 


44 


5H 


42 


57 


43 


58 


41 


62 


42 


58 


41 


58 


42 


56 


48 


58 


52 


54 


48 


54 


45 


57 


45 


51 


44 


46 


44 


59 


43 


64 


45 


54 


44 


54 


44 


58 


42 


63 


51 


65 


48 


59 


48 


59 


43 


58 


42 


56 




70 


51 


56 


49 


59 


49 


58 


54 


56 


54 


54 


50 


54 


42 


50 


42 


50 


43 


50 


43 


45 


54 


57 


45 


58 


44 


59 


44 


56 


43 


59 


43 


58 


49 


65 


49 


59 


49 


&6 


50 


60 


49 


59 


46 


58 


40 


54 


42 


60 


40 


m 


40 


71 


40 


57 


40 


56 


40 


54 


40 


51 





Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


41 


68 


72 


73 


70 


74 


77 


G4 


42 


72 


72 


73 


71 


74 


76 


70 


40 


71 


72 


73 


72 


74 


76 


66 


40 


71 


72 


73 


72 


74 


76 


65 


41 


71 


73 


72 


74 


72 


74 


65 


41 


71 


73 


73 


74 


72 


76 


65 


41 


71 


72 


73 


74 


72 


74 


6-1 


40 


71 


72 


71 


74 


73 


74 


63 


40 


72 


71 


72 


74 


72 


76 


62 


73 


72 


60 


73 


74 


72 


76 


60 


68 


73 


73 


73 


74 





76 


6.5 


68 


72 


72 


73 


74 


78 


76 


66 


58 


72 


72 


72 


74 


76 


76 


m 


55 


73 


73 


73 


74 


76 


73 


66 


72 


72 


72 


71 


74 


77 


74 


66 


71 


72 


73 


70 


74 


77 


74 


66 


58 


72 


72 


71 


76 


77 


76 


6o 


71 


72 


73 


72 


74 


74 


74 


65 


64 


73 


73 


71 


74 


77 


76 


58 


62 


73 


73 


72 


73 


77 


76 


59 


59 


72 


72 


72 


74 


77 





n<i 


57 


72 


72 


71 


74 


76 





58 


55 


73 


72 


72 


74 


76 







62 


72 


73 


71 


74 


77 





59 


73 


72 


73 


70 


74 


77 





62 





72 


73 


71 


74 


77 





66 


71 


72 


73 


71 


73 


76 


44 


66 


70 


72 


73 


71 


72 


76 


66 


68 


58 




73 


71 


73 


77 


72 


66 


70 




73 


71 


74 


77 


66 


62 


72 




73 




74 




70 


60 


43 


38 


34 


66 


78 


65 


58 


51 


45 


37 


39 


71 


81 


65 


49 


49 


45 


37 


39 


71 


78 


65 


52 


49 


45 


34 


50 


73 


78 


63 


52 


50 


45 


37 


45 


71 


78 


60 


49 


56 


45 


37 


66 


73 


76 


60 


45 


58 


45 


37 


71 


71 


73 


60 


44 


58 


43 


37 


71 


73 


76 


58 


52 


58 


41 


34 


65 


78 


76 


56 


56 


56 


39 


34 


71 


77 


76 


56 


56 


54 


39 


34 


71 


78 


76 


54 


55 


56 


40 


34 


66 


77 


76 


58 


59 


58 


40 


37 


71 


76 


76 


50 


58 


56 


38 


34 


71 


79 


76 


56 


60 


60 


38 


34 


73 


79 


76 


54 


59 


62 


38 


34 


71 


81 


71 


54 


58 


62 


41 


38 





79 


76 


49 


62 


56 


38 


38 


70 


78 


76 


49 


55 


54 


38 


37 


73 


78 


76 


49 


56 


49 


40 


37 


63 


78 


76 


56 


50 


54 


38 


37 


71 


81 


76 


56 


55 


54 


38 


34 


71 


79 


71 


56 


54 


54 


39 


37 


66 


79 


66 


58 


56 


54 


38 


37 


63 


79 


71 


60 


56 


56 


38 


34 


65 


79 


71 


58 


60 


56 


38 


32 


65 


79 


71 


60 


60 


49 


38 


34 


66 


79 


68 


63 


60 


49 


39 


34 


66 


78 


68 


63 


58 


54 


38 


34 


66 


73 


71 


60 


60 


49 


38 




71 


78 


71 


68 


60 


51 


38 




73 




71 




58 


51 



48 
43 
43 



268 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Southern California Edison Co.'s canal near Mentone^ 
Calif, for 1901-1918~Contin\ied. 



Apr. 



May. 



July. 



a Estimated. 
-Discharge May 12 and 13 interpolated. 



SANTA ANA KIVER BASIN. 



269 



Baihj discharge, in second-feet, of Southern California Edison Co.^s canal near Mentone, 
Calif, for 1901-1918— Gontimied. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1914-15. 
1 


59 
70 

70 
50 
50 

50 
50 
55 
50 
50 

50 
50 
55 
55 
55 

55 
55 
55 
50 
45 

45 
41 
50 
50 
50 

50 
50 
50 
50 
50 
50 

64 
64 
64 
59 
59 

59 
59 

64 
64 
59 

70 
70 
64 
70 
64 

64 
64 
64 
64 
64 

64 
64 
64 
64 
64 

64 
59 
59 
59 
59 
59 


41 
41 
41 
39 
39 

39 
39 
39 
41 
52 

52 
45 
45 
45 
41 

39 
41 
39 
39 
41 

39 
41 
41 
37 

37 

39 
39 
41 
41 
37 

59 
59 
64 
64 

64 

64 
70 
64 
59 
64 

59 
59 
59 
59 
59 

59 
59 
59 
59 
59 

59 
59 
59 
59 
59 

59 
59 
55 
59 
59 


37 
41 
37 
41 
41 

37 
37 
37 
37 
37 

37 
41 
37 
37 
37 

37 
70 
64 
55 
50 

50 
55 
55 
60 
45 

45 
50 
41 
41 
41 
37 

59 
55 
55 
59 
59 

59 
59 
59 
59 
59 

59 
59 
59 
59 
41 

41 
41 
59 
59 
59 

59 
59 
59 
59 
59 

55 
55 
55 
55 
55 
55 


43 
43 
43 
62 
43 

43 
41 
43 
43 
41 

41 
41 
41 
41 
43 


41 
41 
43 
41 

45 
55 

45 
43 

74 

55 
50 

74 
74 
74 
79 

55 
74 
74 
74 
74 

79 
79 
74 
74 

74 

74 
74 
74 
74 

74 

74 

13.3 
.0 


79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

64 
59 
59 
70 
70 

70 
70 
70 
70 
70 

64 
64 
64 
64 
70 

70 
70 
64 


70 
70 
70 
59 
64 

64 
70 
64 
64 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 
79 


79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 

79 

79 
79 
79 
79 
79 

41 
79 
79 
79 
79 

79 
70 
70 
70 
70 

55 
59 
59 
59 
59 

' 59 
59 
64 
64 
64 

64 
70 
64 
70 
64 

64 
64 
64 
64 
64 

64 
64 
64 
64 
59 

74 
74 
70 

74 
74 


70 
70 
70 
70 
70 

70 
70 
70 
70 
70 

79 
74 
79 
79 
79 

79 
79 
79 
79 

79 

79 
79 
79 
79 
79 

79 
70 
79 
79 
79 
79 

79 

74 
74 
74 
79 

85 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 


79 
79 
79 

79 

79 
79 
79 
79 
79 
79 


79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 

79 

79 
79 
79 
79 

79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

85 

85 
85 

85 
85 

85 
85 

85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 


79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 
79 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 

85 
85 
85 


79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 

11 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 
79 

85 
50 
79 
79 
79 

79 
79 
79 

85 
85 

85 
79 
45 
85 
85 

85 
85 
85 
85 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 
79 


79 


2 


79 


3 


79 


4 


79 


5 


79 


6.. 


79 


7 


79 


8.." . 


74 


9 


74 


10 .. 


74 


11 


74 


12 


74 


13 


74 


14 


74 


15 


74 


16., 


74 


17 


74 


18 


74 


19 


70 


20 


70 


21 


64 


22 


64 


23 


64 


24 


64 


25 


70 


26 


74 


27 . . . 


74 


28 


74 


29 


70 


30 


64 


31 




1915-16. 
1 


79 


2 






79 


3 






79 


4 






79 


5 






79 


6 






79 


7 






79 


8 






79 


9 . 






79 


10 






79 


11 






79 


12 






79 


13 






79 


14 






79 


15 






79 


16 






79 


17 






85 


18 






85 


19 






85 


20 








85 


21 








85 


22 








85 


23 








79 


24 








85 


25 








85 


26 








85 


27 








85 


28 







37 
59 
59 


85 


29 






85 


30.. 






85 


31 









Note.— No water in canal Jan. 18 to Mar. 28; flume damaged by flood. 



270 SURFACE ¥/ATEE OF PACIFIC SLOPE, SOUTHEPvIn CALIFORl^IA. 



Daily discharge, in second-feet, of Southern California Edison Co.' s canal near Mentone^ 
Calif., for 1901-1918~Gontimied. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1916-17. 
1 


85 
85 
85 
79 
79 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 
85 

85 
85 
85 
85 

85 

85 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 
74 


85 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
74 

70 
74 
70 
70 
70 

70 
70 
70 
70 

70 

70 
70 
70 
70 
70 

70 
79 
79 
' 79 
74 

70 
79 

74 
59 
59 

59 
64 
64 
59 
50 

50 
59 
59 
55 

55 

59 
70 
64 
70 
70 

70 
70 
64 
64 

64 


70 
70 
70 

70 
70 

70 
70 
70 
70 
70 

70 
70 
70 
70 
70 

70 
70 
70 
70 
70 

70 
70 
70 
70 

74 

70 
74 
74 
79 
79 
79 

59 
59 
59 
20 




42 
55 
55 
55 

50 
50 
50 

50 
55 

50 
50 
SO- 
SO 
50 

65 
50 
59 
50 
45 

41 
45 
50 
50 
50 
45 


79 
79 
79 

79 

74 

74 
74 
74 

74 
74 

74 
74 

74 
74 
74 

74 
64 
74 
79 
79 

79 
79 

74 
74 
74 

74 
74 
64 
64 
79 
64 

50 
55 
55 
59 
59 

59 
50 
50 
50 
41 

55 
55 
59 
55 
55 

50 
50 
50 
50 
50 

50 
50 
50 
50 
59 

50 
45 
45 
45 
45 
45 


59 
59 
59 
59 
70 

70 
70 
59 
64 
64 

64 
64 

64 
64 
64 

64 
59 
59 
70 
74 

79 

85 
85 
85 
85 

85 
85 
85 

45 
45 
45 
45 
50 

55 
59 
55 
55 
50 

50 
55 
55 
59 

64 

64 
64 
56 

53 

59 
83 
83 
64 
56 

53 
51 
45 


85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 
85 

45 
43 
45 
43 
43 

85 
85 

61 
69 





75 
77 

77 
85 
85 
85 
85 

83 

85 
85 
88 
85 

85 
72 
75 
85 
85 
85 


85 
85 
85 
85 
85 

85 
85 

79 
79 

79 
79 
79 
79 
79 

79 

85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
83 

85 
85 
85 
80 
80 

80 
83 
83 
80 
80 

80 
80 
80 
80 

77 

77 
77 
77 
80 

75 

75 
75 
72 


85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 

85 
85 
85 

85 
85 
85 

85 
85 

79 
79 
79 
79 

79 

79 
79 

85 
85 
79 
79 

72 
69 
69 

86 

77 

80 

77 
77 
77 
77 

75 
72 
67 
75 
75 

75 
75 
75 
75 
75 

75 
72 
72 
72 
69 

72 
75 
75 
75 
75 
69 


74 

74 
74 
74 

74 

74 
70 
70 
70 
70 

74 
70 
70 
70 
79 

79 


59 

74 
74 

79 
79 
79 
79 
79 

79 
79 
79 
79 

74 

64 
64 
64 
65 
69 

69 
69 
69 
69 
69 

72 

75 

77 
77 
77 

80 
80 
80 
80 
80 

75 
72 
69 
69 
64 

61 

72 
72 
72 
72 


79 
79 
79 

74 
74 

74 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 
79 

79 
79 
79 
79 

79 

79 
79 
79 

79 
79 
79 

72 
77 
75 
75 

77 

77 
77 
77 
77 
77 

72 

75 
75 
77 
75 

72 
75 

72 
75 
72 

75 
77 
75 
77 
75 

72 
69 
75 
75 

75 


85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
85 
85 

85 
85 
85 
79 
79 

79 
79 
79 
85 
85 

85 
85 
85 
85 
85 
85 

77 
77 
77 
77 
75 

75 
75 
75 

75 
77 

75 

75 
75 
77 
77 

77 
77 
77 
77 
75 

75 

72 
72 

75 

75 

75 
75 
72 
72 
77 
80 


85 


2 


85 


3 . . . 


85 


4 


85 


5 


85 


6 


85 


7 


85 


8 


85 


9 


85 


10 


85 


11 


85 


12 


85 


13 . ... 


85 


14 


85 


15 


85 


16 


85 


17 


85 


18 


85 


19 


85 


20 


85 


21 


85 


22 


85 


23 - . 


85 


24 


85 


25 


85 


26 


85 


27 


85 


28 


85 


29 


85 


30 


85 


31 




1917-18. 
1. 


77 


2 


77 


3. 


75 


4 


77 


5 


77 


6 


75 


7 


75 


8 


75 


9 


75 


10 


72 


11 


72 


12 .. . 


75 


13 


75 


14 


77 


15 


77 


16 


77 


17 


77 


18 


77 


19 


77 


20 


77 


21 


77 


22 


80 


23 


77 


24 


75 


25 


75 


26 


72 


27 


72 


28 


75 


29 


75 


30 


75 


31 









SANTA ANA RIVER BASIN. 



271 



Monthly discharge of Southern California Edison Co.^s canal near Mentone, Calif ., for 
1896-1898, 1901, and 1904-1918. 



Month. 


Discharge in second- 
feet. 


Run-oft" 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 


Rrm-off 
(totalin 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1896. 
July 






14 

14 
14 


861 
861 
833 


1905-6. 

December 

January 

February 


34 
59 
64 
71 
74 
72 
72 
72 
72 
66 


25 
33 
32 



64 
66 
42 
52 


29.8 
37.5 
47.3 
41.8 
65.2 
66.2 
70.1 
71.1 
68.9 
59.6 


1,830 
2,310 
2,6.30 
2,570 
3,880 
4,070 
4 170 


August 






September 












1896-97. 






16 
3.5 
4.2 
5.6 
4.0 
5.2 
3.8 
15.0 
16.6 
15.6 
18.3 
20 


984 

2,083 

2,582 

344 

222 

320 

226 

922 

988 

960 

1,125 

1,190 


April 


October 


May 










December 






July 


4;.370 
4,240 
3,550 


January 

February 

March 


8.5 

6 

6 
12 
20 
19 

18.5 
20 


3.2 
.0 
.5 
.0 
.0 
.0 
10.6 
17.4 


August 

September 

The year . . 

1906-7. 

October 

November 

December 

January 

Febniary 

March 


April 


74 





53.3 


38,600 


Mav 




68 
67 
76 
76 
76 
77 
76 
76 
70 
69 
69 


61 
52 
56 


76 
56 
73 


70 




63.7 
57.9 
66.5 
73.5 
76.0 
73.6 
75.9 
65.7 
70.0 
69.0 
69.0 
63.2 




July 


3,920 
3,450 
4,090 
4,520 
4,220 
4,530 
4,520 
4 040 


August 

September 








The year.. 


20 


.0 


10.6 


11,900 


1897-98. 






12.4 
7 
7 
9 
8 
8 
8 
6 
4 
2 
2 
2 


762 
417 
430 
553 
444 
492 
476 
369 
238 
123 
123 
119 


April 


October 


May 










4,170 
4,240 
4,240 
3,760 


December . 






July 










Februarj^ 






Sectcmber 69 


March 






The year.. 

1907-8. 

October 

November 

December 

January 

February 


77 


April 









68.6 


49,700 


May 












77 
76 
72 
76 
78 
78 
77 
77 
67 
69 
68 
75 


63 
60 
54 



74 
61 
53 
56 
52 
42 


70.3 
73.9 

58.7 
51.0 
69.2 
57.0 
76.6 
70.5 
59.6 
62.3 
61.8 
56.8 




July . . 






4,320 
4,400 








September 






3,610 
3,140 
3,980 
3,500 
4,560 
4,330 
3, 5.50 








The year . . 






6.28 


4,550 








1898. 










2.71 

2.34 
3.96 






167 
139 
243 


April 


October . ... 


May 










December . 






July 


3,830 
3,800 
3,380 


1901. 
Marob 


6 

4.62 

4.62 




3.8 


August 

September 

The year-. 

1908-9. 

October 

November 

December 

January 

February 


April 


78 





63.9 


46,400 


May 




66 
65 
56 
77 
76 
76 
76 
76 
81 
75 
73 
69 


45 
37 
36 
35 


76 
76 
73 


59 
55 
52 


55.8 
40.8 
41.4 
57.0 
67.1 
76.0 
76.0 
73.3 
65.4 
66.5 
61.4 
58.8 




1904. 

January 

February 

March 


25.6 
32.3 
33.3 
32.3 
25.3 
39.5 
25.3 
54 


21.6 
.0 
.0 
.0 
7.0 

21.2 
.0 
.0 

42 


24.1 
24.7 
11.6 
16.8 
17.9 
24.5 
19.4 
36.8 
54.5 


1,480 
1,420 
713 
1,000 
1,100 
1,460 
1,190 
2,260 
3,240 


3,430 
2,430 
2,550 
3,500 
3,730 
4,670 
4,520 
4,510 
3,890 


^1?':::::;:::: 


June 


April . 


Jul- 


May 


August 


June...... . . 


September ■ 6B 


July . 


4,090 
3,780 
3,500 






August 

September 

The year.. 

1909-10. 

October 

November 

December 

January 

February 

March . 


The year... 


i 1 


13, 900 










1904-5. 
October 


59 

22.0 
19.0 
66 

74 
97 
78 
76 
71 
66 
81 
78 


19.8 
18.1 
16.0 












56 
51 
51 


46.7 
18.6 
17.9 
31.4 
44.5 
49.8 
55.0 
41.0 
42.0 
60.7 
65.8 
67.3 


2,870 
1,110 
1,100 
1,930 
2,470 
3,060 
3,270 
2,520 
2,500 
3,730 
4,050 
4,000 


81 





61.6 


44,600 


November 

December 

January 

February 

March 


65 
63 
79 
79 
76 
79 
79 
79 
73 
68 
68 
70 


45 

.8 
38 

.0 
62 

.0 
64 
66 
55 

.0 
51 
51 


55.4 
49.0 
64.4 
44.7 
69.7 
67.8 
75.6 
75.8 
66.5 
45.3 
59.5 
58.4 


3,410 
2,920 
3,960 




2,750 


May 


3,870 








April... 






4, 500 




May 


4,660 


September 


June 


3,960 


July 


2,790 


The period. 


97 







27, 500 


August 

September 

The year.. 


3,660 
3,480 


1905-6. 

October 

November 


66 
50 


41 
29 


48.2 
33.7 


2,960 
2,010 


79 


.0 


60.9 


44, 100 



272 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Monthly discharae of Southern California Edison Co.^s canal near Mentone, Calif., for 
1896-1898, 1901, and 1904-1918— Continued. 



Discharge in second- 
feet. 



Maxi- 
mum. 



Riin-off 
(total in 
acre- 
feet). 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



1910-11. 

October 

November. . . 
December... 
January ..... 
February — 

March 

April 

May. 

June 

July 

August 

September... 

The year. 

1911-12. 

October 

November. . . 
December... 

January 

February — 

March 

April 

May 

June 

July 

August 

September... 

The year 

1912-13. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September. . 

The year. 

1913-14. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 

June 

July 

August 

September.. 

The year 



57.5 
45.0 
42.4 
55.9 
71.8 
72.1 
71.8 
73.5 
72.8 
58.8 
63.5 
61.1 



3, 5-10 
2,680 
2,610 
3,440 
3,990 
4,430 
4,270 
4,520 
4,330 
3,620 
3,900 
3,640 



62.1 



45, 000 



57.4 
45.5 
42.7 
40.2 
35.6 
62.0 
76.4 
74.2 
58.0 
55.5 
54.3 
53.5 



3,530 
2,710 
2, 630 
2,470 
2,050 
3,810 
4,550 
4,560 
3,450 
3,410 
3,340 
3,180 



.54.7 



39,700 



34.1 
33.0 
30.7 
40.4 
46.9 
56.2 
53.0 
51.6 
38.6 
53.5 
53.7 



3,010 
2,030 
2,030 
1,890 
2,240 
2,880 
3,340 
3,260 
3,070 
2,370 
3,290 
3,200 



32, 600 



50.3 
28.9 
25.9 
51.4 
62.9 
74.9 
73.4 
72.9 
76.1 
72.9 
63.9 
57.6 



3,090 
1,720 
1,590 
3,160 
3,490 
4,610 
4,370 
4,480 
4,530 
4,480 
3,930 
3,430 



59.2 



42,900 



1914-15. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September.. , 

The year. 

1915-16. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 

June. 

July 

August 

September... 

The year . 

1916-17. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 

June 

July 

August 

September... 

The year 

1917-18. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 

Jtme 

July 

August 

September... 

The year. 



70 
52 
70 
79 
79 
79 
79 
79 
79 
79 
79 
79 



70 
70 
59 
79 

• C 
59 
74 
85 
85 
85 
85 
85 



85 
85 
79 
79 
85 
85 
85 
85 
79 
79 
85 
85 



85 
79 
59 
59 
83 
88 
85 
86 
80 
77 



37 
37 




79 
79 
79 
79 
64 



52.1 
41.0 
43.8 
47.9 
71.1 
75.3 
76.5 
75.9 
79.0 
79.0 
79.0 
73.0 



59 
55 



.0 
.0 
55 


85 
85 
45 
79 



63.0 
60.2 
56.2 
38.3 

.00 
5.00 
64.5 
76.2 
85.0 
85.0 
78.9 
81.6 



58.0 



70 
70 
64 
59 
85 


79 


74 
79 



84.6 
74.7 
71.3 
74.2 
69.8 
85.0 
80.6 
83.3 
71.9 
78.5 
84.0 
85.0 



78. ( 



74 
50 

41 


72 
67 
61 
69 
72 
72 



80.0 
65.4 
46.7 
51.3 
54.2 
64.5 
80.0 
74.2 
71.6 
74.9 
75.5 
75.6 



67. t 



SANTA AlsTA KIVER BASIN. 273 

Discharge measurements of Greenspot pipe line near Mentone, Calif., for 1896-1904. 



Date. 



Jan. 8 

Apr. 12 

12 

June 12 
July 23 
Sept. 8 
Oct. 18 
Nov. 9 
Dec. 8 



Jan. 12 

Feb. 18 

18 

Mar. 23 

May 6 

6 

31 

July 15 

15 

27 

27 

Aug. 24 

1900. 
Apr. 14 
July 13 
Oct. 2 



Made by— 



J. B. Jjippincott.. 



. B. Lippincott. 

...do 

...do 

...do 

...do 

...do 

.do. 



F. H. Olmsted. 

....do 

....do 

....do , 



S. G. Bennett.. 

do 

do 

do 

do 

do 

do..' 

do 

do 

do 

.....do 

do 



S. G. Bennett 

....do 

W. W. Coekins, jr.. 



Dis- 
charge. 



Sec.-ft. 
0.40 

.38 

a 1.88 

bl. 74 

2.94 

.63 

2.20 

.00 

1.36 

.50 

.50 

b .15 

.00 

ffl3.53 

b .35 

3.71 

a 1.43 

0.62 

.14 

a. 59 

b.U 

0.64 

b .54 

6.28 



Date. 



1901. 
Feb. 5 
Mar. 4 
30 
July 6 
6 
Aug. 20 
Oct. 8 
Dec. 5 

1902. 
May 31 
31 
July 10 
Sept, 3 
Nov. 5 

1903. 
Aug. 31 

1904. 
Jan. 29 
May 14 
28 
June 29 
Sept. 21 
Nov. 11 



Made by— 



. G. Bennett-. 

...do 

...do 

...do 

...do 

...do 

...do 

...do 



S. G. Bennett.. 

do 

....do 

W. W. Clapp.. 
S. G. Bennett-. 



W.B. Clapp. 



W. B. Clapp.. 

do 

....do 

....do 

....do 

E. C. La Rue. 



Dis- 
charge. 



Sec.-ft. 
oO.OO 
C2.73 
a .00 
a 3.68 
b3.49 
.00 
5.77 



a 2. 70 
6 2.50 
a .00 



o4.2 
a 1.8 
a 4. 9 
a 7. 3 
a 6.0 
a 1.1 



a Intake. 5 Outlet (lower end). 

Daily discharge, in secondfeet, of Greenspot pipe line near Mentone, Calif., for 1900- 
1901, 1903-1904, and 1911-1918. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1900. 
1 


2.32 
2.44 
2.06 
.60 
1.86 

3.72 
3.72 
3.72 
2.32 
2.58 
2.58 
2.58 
2.58 
4.14 
4.72 

4.14 
4.14 
2.32 
1.00 
.40 
.90 
.98 
.82 
.72 
.72 

.66 
.66 
.98 
1.08 
1.08 
1.08 


1.08 
2.32 
2.32 
2.32 
3.46 

3.18 
3.32 
.90 
.82 
1.08 
1.08 
1.56 
1.88 
2.32 
1.26 

1.44 
2.10 
2.58 
2.80 
3.86 

3.00 
3.06 

2.58 
2.58 
1.16 

1.36 
1.36 

1.78 


1.78 
1.44 
2.20 
2.32 
2.58 

2.94 
2.94 
2.94 
2.94 

1.78 
1.78 
1.78 
2.68 
3.18 
.72 

.82 
.82 
.82 
.82 
.82 

.82 
.82 
2.94 
2.68 
2.68 

2.68 
.82 

2.68 
.90 
.90 
.90 


1.56 
1.56 
3.60 
3.72 
3.72 

3.72 
1.88 
1.88 
3.32 
3.32 

3.32 
3.18 
.00 
.00 
1.26 

.00 
.00 
.00 
.00 
.00 

.00 
5.94 
6.76 
6.20 
1.16 

1.36 
1.66 
1.26 
5.94 
3.32 


7.96 
4.42 
7.96 
7.96 

'"".90 
2.10 

.58 
3.86 
3.86 
3.86 

1.66 
1.66 
1.66 
1.36 
1.36 
1.56 
1.56 
1.56 
.98 
.98 
.98 


0.00 
.98 

1.06 
.50 
.26 
.24 
.50 
.50 
.50 
.38 

.60 
.66 
.66 
.26 
.16 
.16 
.12 
.12 
.24 
.10 
.10 
.16 
.22 
.22 
.24 

.38 
.44 
.50 
.50 
.46 


0.48 
.48 
.48 
.40 

.48 

.44 
1.26 
1 26 


2 


3 


4 .... 


5 


6 .. 


7 


8 


9.. . 


1.08 
2.78 

.68 
,10 
.20 
2.42 
3.74 


10 


11 


12 


13 


14 


15 


16 


17 




18 




19 




20 




21 




22 




23 




24 




25 




26 




27 




28 




29 




30 




31 











Note.— No record May 5-9 and 11-15. No water from Bear Valley July 15 to close of year. 
142131°— 21— wsp 447 18 



274 SURFACE WATER OE EACIEIC SLOPE, SOUTHERN CALIFORNIA. 



Dmki^ (Mseharge, in secorod-feet, of Greenspot pipe line near Mentone, Calif., for 1900- 
1901, 1903-1904, and 1911-1918— Contmued. 



Date. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


Date. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dee. 


1901. 
1 

2 

3 

4- 

5 

6 

8.'.'.'.'. 

9 

10 

11 

12 

13..-.. 

14 

15. 


3.0 
.5 
.5 
.5 

.5 

.5 
.5 
.5 
.5 
.5 

1.5 
1.5 
1.5 
1.5 
1.5 


3.5 
3.5 
3.5 
3 5 
3.5 

3.5 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.6 
1.8 
1.8 


2.5 
2.5 
2.5 
2 5 

2.5 

.0 
3.0 
3.0 
3.0 
3.0 

3.0 
5.5 
2.5 
2.5 
2.5 


6-0 
6.0 
6.0 
6 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 


6.0 
6.0 
6 
6 
6.0 

6.0 
G.0 
6.0 
6.0 
6.0 

6.0 
4.0 
4.0 
4.0 
4.0 


3 
.3.0 
2 
2 
2.0 

.0 
.0 
.0 
.0 
1.7 

3.5 
2.6 
2.6 
3.7 
4.5 


1 3 
L3 
1 6 
1.7 
1.7 

1.8 
1.1 
1.2 

1.8 

1.8 

1.4 
1 3 
1.3 
1.6 
1.4 


1901. 
16.... 
17.... 
18.... 
19.... 
20.... 
21.... 
22.... 
23.... 
24. . . . 
25.... 

26.... 
27.... 
28.... 
29.... 
30.... 
31 


1.5 
1.5 

2.5 
2.5 

3.5 

3.5 
.0 
3.5 
3.5 
2.5 

2.5 
2 5 
2.5 
3.8 
3.5 


1.8 
1.8 

1 8 
1.8 
1.8 

1.8 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 


2.5 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
2.5 
3.0 

5.0 
5.0 
8.0 
6.0 
6.0 
6.0 


6.0 
4.0 
4.0 
4.0 
4.0 

4.0 

4.0 
4.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 


6.0 
6.0 
6 
6.0 
6.0 

6.0 
6.0 
6.0 

6.. a 

6.0 

6.0 
6.0 
6.0 
6.0 
6;0 
6.0 


4.3 
.5 
5 
.5 
.0 

.0 
1.5 
1.5 
1.6 

1.8 

2.1 
1.8 
1.8 
1.6 
1.3 


L5 
L8 
1 5 
1.8 
1.6 
1.6 
1.6 

.e 

.0 
.0 

.0 
.0 
.0 
.0 
2.5 
2.5 












Day. 


Aug. 


Sept. 


Day. 


Aug. 


Sept. 


Day. 


Aug. 


Seplr. 


1903. 
1 




6.3 
.0 
5.1 
5.1 
5.1 

5.3 
5.6 
6.2 
5.3 
5.0 


11. 


1903. 




5.3 
6.2 
8.3 
7.6 
7.6 

7.6 
7.2 
6.9 
6.5 
6.6 


2 
2 
2 
2 
2 

2 
2 
2 
2 
3 
3 


1903. 
1 


9.0 
7.6 
7.5 

7.5 
9.9 

9.0 
6.5 
5.9 
6.5 
6.3 
6.2 


6.6 


2 




12 




2 . 


6.9 


3 




13 




3 


6.9- 


4. . . 




14 


6.2 
6.2 

6.2 
6.9 
7.6 
7.6 
9.0 


4 


6.9 


5 




15... 




6.9 


6. . . . .. 




16 


6 


5.6 


7 




17.. . 




6.9 


8 




18 


8 


10.7 


9 ... 




19 


9 


6.9 


10 




20 





9.9 









1 
































Note.— No flow Apr. 1 to Aug. 13. 



Day. 



1903-4, 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10. 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



Oct. Nov. Dec. 



4.8 
7.0 
9.0 
8.7 
7.0 

6.6 
5.8 
6.0 
6.0 
6.0 

5.7 
7.3 
7.3 
6.9 
7.2 
7.2 



6.5 
5.4 
6.0 
3.0 
2.4 

1.7 
1.7 
1.7 
1.7 
1.7 

1.7 
1.7 
1.7 
1.7 
1.7 



1.4 
1.2 
1.2 
.9 



3.4 
1.9 
2.2 



3.8 
2.2 
2.2 
2.1 

2.2 
2.2 
2.2 
2.2 
2.2 

3.4 
3.4 
2.6 
2.2 
2.2 



1.9 
1.9 
1.9 



2.1 
2.1 
1.9 
2.1 
2.2 

2.2 
2.2 
2.2 
2.2 
2.2 

2.2 
2.2 
2.2 

2.4 
2.4 



5.7 

5.7 
4.8 

4.8 
4.8 
4.2 
4.2 
4,2 
4.2 



3.1 
3.4 
3.1 
3.1 



3.7 
3.1 
3.1 

2.6 
2.6 

2.6 
2.6 
2.6 
2.6 
2.6 

2.6 
3.7 
3.7 
3.1 
3.1 

2.9 
2.6 
3.7 
3.7 
3.7 

3.7 
2.6 



3.7 
3.7 
3.1 
3.1 
3.1 

2.6 
2.6 
2.6 
2.4 
2.2 

3.7 
3.7 
3.1 
3.1 
3.4 

3.4 
3.1 
3.1 
3.1 
2.6 

1.7 
.0 
.0 
.0 



.0 
.0 
2.6 
2.6 
2.6 
2.6 



Apr. 



1.7 
3.7 
3.7 
3.7 
3.7 



2.6 
3.7 
3.7 

3.7 
3.7 
3.1 
3.7 
5.1 

2.6 
3.1 
2.6 



3.4 
4.2 
3.7 
3.7 
3.7 



May, 



3.7 
3.7 
3.7 

3.7 
3.7 
3.7 
3.4 
3.1 

3.1 
1.7 
1.7 
1.7 
1.3 

2.6 
2.6 
2.6 
2.6 
3.1 

2.5 
3.6 
3.6 
3.(> 

3.8 

5.1 
5.4 
4.8- 
5.1 
5.1 
4.8 



5.1 
5.1 
5.1 
5.1 
5.4 



5.4 
5.7 

5.7 
5.4 



5.1 
5.4 

5.4 
5.4 
5.4 
5.4 
5.4 

5.4 
5.4 
5.4 



5.4 
6.0 
7.0 



July. 



7.3 
7.3 
6.6 
6.6 
7.3 

7.0 
5.7 
5.1 
3.9 



3.9 
4.2 
4.2 
4.2 
3.7 



3.7 
3.7 
4.5 
4.5 

4.8 
4.8 
4.8 
3.2 
3.4 

3.4 
3.4- 
3.4- 
3.4 
3.4 
3.0 



Aug. 



3.0 
2.8 
3.0 
3.0 
3.0 

3,0 
4.2 
4.2 
3.4 
5.7 

6.0 
4.2 
3.7 
2.6 
.0 



.0 
2.6 
2.6 



6.0 
5.2 
5.1 
5.4 

5.1 
5.1 

4.8 
4.8 
4.8 
1.1 



1.7 
.3 
1.1 
5.1 



5.7 
5.4 
5.1 
4.5 

4.5 
3.4. 

4.8- 
4.8 
4.8 

4.8 
4.& 
4^8 
4.8 
4.8 

4.8' 

6.0 

6.0 

4.5 
5.1 

5.4 
5-.». 
5.» 
5.* 
5.8 



SANTA AJSTA KIVEE BASIK. 



275 



Daily discharge, in second-feet, of Greensfot pipe line near Mentone, Calif., for 1900- 
1901, 190S-1904, ajid 1911-1918— Continued. 



Day. 



1904. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 



Oct. 


Nov. 


Dec. 


5.8 


0.9 


l.S 


5.1 


1.8 


i.a 


5.H 


.9 


1.3 


5.1 


.7 


.6 


5.8 


.7 




7.2 


.8 


1.5 


5.8 


.6 


1.3 


5.8 


.9 


1.5 


1.1 


.8 


1.3 


4.4 


1.3 


1.3 



Day. 



1904 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 



0.8 
1.3 
2.4 
1.5 



Day. 



1904, 

21 

22 

23 

24 

25 

26 

27 

28....... 

29 

30 

31 



0.8 
1.2 
1.1 



1.9 
2.2 
2.2 



Day. 



Sept. 



Sept. 



Sept. 



9.. 
10.. 



1.3 
1.6 



1911 

11 

12 

13 

14 

15-. 

16 

17 

18 

19 

20 



1.8 
.0 
.0 
.0 

.0 

.0 
1.0 
2.0 
9.0 
7.5 



9.0 
9.0 

7.0 



Day. 



1911-12. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12.. L 

13 

14.... 

15. 

16 

17 

18 

19 

20 

21.. 

22 

23 

24 

2^ 

26 

27 

28 

29 

30 

31..... 



6.0 
6.0 
.0 
.0 
.0 

.0 
.0 
.0 
1.0 
2.3 



6.5 
7.5 
1.5 
3.0 
1.0 

1.0 
.0 
.0 
.4 

.0 

.0 
.0 
.0 
.0 
.0 
.0 



0.0 
.0 
.0 
.0 
.0 



7.0 
7.0 
7.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
.0 
.0 
.0 
.0 

.0 ■ 
.0 i 
7.3 i 
7.3 ! 
7.3 I 

7.3 
7.3 
7.3 i 
7.3 I 
7.3 



6.0 
5.0 
5.0 
4.0 
4.0 

4.0 
.0 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
3.0 

3.0 
3.5 
3.5 
3.5 
3.5 

.0 
.0 
.0 
.0 



1.0 
1.0 
2.0 
2.0 
3.0 
3.0 



3.0 
3.0 
.0 
.0 
.0 

.0 
.0 
5.0 
5.0 
5.0 

5.0 
5.0 
5.0 
5.0 
5.0 

5.0 
4.0 
4.0 
4.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
4.0 
4.0 
4.0 



5.0 
5.0 
5.0 
5.0 
5.0 

4.5 
4.5 
4.5 
4.5 
4.5 



4.5 
4.5 
4,5 

4.5 

2.5 
2.5 

2.5 
2,5 

3.0 
3.0 
3.0 
3.0 

3.0 

5.0 
5.0 
5.0 
4.0 



Mar. Apr. May. June. July. 



4.0 
4.0 
4.0 
3.0 
4.0 

5.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
.0 



0.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 



1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 

1.0 



1.0 
1.0 
1.0 
1.0 
1.0 

4.0 
4.0 
4.0 
4.0 
4.0 

4.0 
4.0 
4.0 
4.0 
4.0 

4.0 
4.0 
4.0 
4.0 
4.0 

4.0 

5.5 
5.5 
5.5 
5.5 

5.5 
5.5 
5.5 
5.5 
5.5 
4.0 



4.0 
4.0 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
4.0 

4.0 
4.0 
4.0 
4.0 
4.0 

4.0 
4.0 
4.0 
4.0 
4.0 

4.0 
4.0 
4.0 
4.0 
4.0 

4.0 
4.0 
4.0 
4.0 
4.0 



4.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
6.0 
3.2 
3.2 

3.2 
3.2 
3.2 

5.2 
5.2 

5.2 
5.2 
5.2 
5.2 
5.2 

3.5 
3.5 
4.5 
4.5 
4,5 

4.5 
4.5 
4.5 
4.5 
4.5 
4.5 



Aug. 



4.5 
4.5 
4.5 
3.0 
3.0 

3.0 
3.0 
5.0 
5.0 
5.0 

5.0 
5.5 
5.5 
2.5 
3.0 

3.0 
3.0 
3,0 
3.0 
5. a 

5.0 
5.0 
5.0 
5.0 
4.0 

4.0 
4.0 
1.0 
5.0 
5.0 
5.0 



Sept. 



5.0 
5.0 
3.0 
3.0 
3.0 

4.0 
4.0 
4.0 
4.0 
4.0 

4.0 
4.0 
5.5 
5.5 
5.5 

5. 5 
5.5 
5.5 
4.5 
4.5 



4.5 
4.5 
4.5 

2.5 
2.5 
2.5 
2.5 
2.5 



276 SURFACE AVATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Greenspot pipe line near Mentone, Calif., for 1900- 
1901, 1903-1904, and 1911-1918— Gont'mued. 



Apr. 



May. 



July. 



4.5 
4.5 
6.5 
6.5 
6.5 

6.5 
6.5 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
7.0 

7.0 
7.0 
7.0 
7.0 
7.0 

7.0 
7.0 
7.0 
3.5 
3.5 
5.5 



3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 



2.5 
2.5 
2.5 



2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

1.2 
2.2 



1.5 
1.5 
1.5 

1.5 
1.0 
1.0 
1.0 
4.0 

1.5 
1.5 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 
.0 



1.4 
1.4 
1.4 
1.4 
1.9 

1.1 
1.9 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 



2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

6.5 
6.5 
6.5 
6.5 
6.5 

6.5 
6.5 
6.5 
6.5 
8.5 

6.5 
6.5 
6.5 

8.5 
8.5 

8.5 
8.5 
8.5 
8.5 
8.5 
8.5 



2.5 
2.5 
2.5 
2.5 
6.5 

6.5 
6.5 
6.5 
6.5 
2.5 

2.5 
2.5 
2.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 



S.l 
3.5 
3.5 
3.5 
2.0 

2.0 
2.0 
4.0 
4.0 
5.0 

5.0 
5.0 
6.0 
.5 
.5 

.5 
.6 
6.0 
6.0 
6.0 

4.0 
4.0 
2.0 
2.0 
2.0 

2.0 
2.0 
6.0 
6.0 
6.0 
6.0 



6.0 
6.0 
3.0 
3.0 
3.0 

6.0 
6.0 
6.0 
6.0 

4.0 

4.0 
4.0 
2.0 
2.0 
2.0 

6.0 
6.0 
6.0 
6.0 
6.0 

4.0 
4.0 
1.5 
1.5 
1.5 

6.0 
6.0 
6.0 
6.0 
6.0 



2.0 
2.0 
3.0 
3.0 
3.0 

5.0 
5.0 
5.0 
5.0 
5.0 

1.3 
1.3 
1.3 
1.3 
5.0 

5.0 
5.0 
.0 
.0 
.0 

.0 
.0 
.0 



4.0 
4.0 
4.0 
4.0 
4.0 
4.0 



1.5 
1.5 
2.5 
2.5 

4.5 

4.5 
4.5 
4.5 
4.5 
4.5 



2.0 
2.0 
4.5 

4.5 
4.5 
4.5 
2.5 
.5 

.5 
3.0 
3.0 
3.0 
2.0 

2.0 
2.0 
1.4 
1.4 



1.4 
2.9 
2.9 

2.9 
2.5 
2.5 
2.5 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 



2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
1.5 
1.5 
1.5 

1.5 
1.5 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 
2.0 



2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
.0 
.0 
.0 
.0 

2.0 



2.0 
2.0 
2.0 
2.0 

5.7 

5.7 
5.0 
5.0 
5.0 
5.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

4.0 
4.0 
4.0 
1.0 
4.0 

4.0 
4.0 
4.0 



4.0 
4.0 
4.0 
4.0 
4.0 

4.0 
4.0 
4.0 
4.0 
6.0 



6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 
6.0 



6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
7.0 

7.0 
7.0 
7.0 
7.0 
7.0 

7.0 
7.0 
7.0 
3.2 
7.0 



7.0 
3.6 
3.6 
3.6 
3.6 



5.5 

5.5 
5.5 
5.5 

5.5 
5.5 
5.5 
5.5 
5.5 

5.5 
5.5 
5.C 
5.5 
5.5 
5.5 



5.5 
5.5 
5.5 
5.5 
5.5 

5.5 
5.5 
5.5 
5.5 
5.5 

5.5 
5.5 
5.5 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
7.0 
7.0 

7.0 
7.0 
7.0 
7.0 
7.0 



7.( 
7.6 
7.6 
7.6 
7.6 

7.6 
7.6 
7.6 
7.6 
7.6 

7.6 
7.6 
7.f 
7.6 
7.6 

7.6 
7.6 
7.6 
7.6 
7.6 

7.6 
7.( 
7.6 
7.6 
7.6 

7.6 
7.6 
7.6 
7.6 
5.0 
5.0 



SANTA ANA RIVEK BASIN. 



277 



Daily discharge, in second-feet, of Greenspot pipe line near Mentone, Calif., for 1900- 
1901, 1903-1904, and 1911-1918— Continued. 



Oct. Nov. Dec. Jan. Feb. Mar. Apr. May. June. July. Aug. Sept. 



6.0 
6.0 
6.0 
5.0 
5.0 

5.0 
5.0 
5.0 
3.0 
3.0 

3.0 
3.0 
5.0 
5.0 
5.0 

5.0 
5.0 
5.0 
5.0 
3.0 

4.0 
4.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 
5.0 



5 
5 
5 
5 
5 

7 
7 
7 
7 
7 

7 
7 
7 
7 
7 

7 
7 
7 
7 
7 

7 
7 

7.5 
7.5 

7.5 

7.5 

7.5 

5 

5 

5 

5 



5.0 
B.O 
5.0 
5.0 
5.0 

5,0 
5.0 
5.0 
5.0 
5.0 

5.0 
6,0 
5.0 
5.0 
5.0 

5.0 
5.0 
5.0 
5.0 
5.0 

5,0 
5.0 
5.0 
6.0 
6.0 

3.0 
4.0 
4.0 
4,0 
4,0 



4.0 
4.0 
4.0 
4.0 
4.0 

4.0 
4.0 
4,0 
4.0 
4.0 

4.0 
4.0 
4.0 
4.0 
4.0 

4.0 
4,0 
4.0 
4.0 
4.0 

4.0 
2,0 
2,0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 
2.0 



2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2,0 
2,0 
2,0 

.0 
2.0 
2.0 
2.0 
2,0 

2,0 
2.0 
2.0 
2.0 
2.0 

2.0 
2,0 
2.0 
2.0 
2,0 
2,0 



2.0 
2.0 
2.0 
2,0 
2.0 

2,0 
2.0 
2.0 
2.0 
2,0 

2,0 
2.0 
2.0 
2.0 
2.0 

2.0 
2,0 
2.0 
2,0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 



2.0 
2,0 
2.0 
4.0 
4.0 

4.0 
4.0 
4.0 
1.0 
1.0 

1,0 
1.0 
1.0 
1,0 
1.0 

1,0 
1,0 
1,0 
1.0 
1.0 

1.0 
2.0 
2.0 
4.5 

4.5 

4.5 
4.5 
4.5 
4.5 
4.5 
4.5 



0.6 

1 

1 



4.5 
4.5 
4.0 
4.0 

4,0 
4,0 
4,0 
4.0 
4.0 

4.0 
5.0 
5.0 
7.0 
7.0 

7.0 
7.0 
7.0 
7.0 
7.0 

7.0 
7,0 
7,0 
5.0 
5.0 

5,0 
5.0 
5.0 
5,0 
5.0 



5,0 
5,0 
5.0 
5.0 
5.0 

5.0 
5.0 
5.0 
5.0 
5.0 

5.0 
5,0 
5,0 
5.0 
5.0 

5.0 
5.0 
5.0 
5.0 
5.0 

5.0 
5.0 
5.0 
5.0 
5.0 

5.0 
6.0 
6.0 
6.0 
6.0 
6.0 



8.5 
8.5 
8.5 
8.5 
8.5 

8.5 
8.5 
8.5 
8.5 
8,5 

8.5 
8.5 
8.5 
8.5 
8,5 

8.5 
8.5 
8,5 



6.0 
6.0 
6.0 
6.0 
6.0 

6,0 
6.0 
6,0 
6,0 
6.0 

6,0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 



6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6,0 
6.0 
6.0 
6.0 
7.0 

7.0 
7.0 
7.0 
7.0 
7.0 
7.0 



8.5 
8.5 
8.5 
8.5 



8.5 
8.5 
8.5 
8,5 
8.5 

8,5 
8.5 
8.5 



8.5 
8.5 
8.5 
8.5 
8,5 

8.5 
8.5 
8.5 
8.5 
8.5 

8.5 
8.5 
8.5 
8.5 



278 SURFACE WATER OF PACIFIC SLOPE, SOUTHERI^ CALIFORNIA. 

Daily discharge, in second-feet, of Greenspot pipe line near Mentone, Calif., for .1900- 
1901, 1903-1904, a7id 1911-1918— Gontinued. 



Apr. 



May. 



July. 



8.5 
8.5 



5.0 
5.0 
5.5 

5.5 

5.5 
5.5 
5.5 
1.3 
1.3 

1.3 
1.3 
1.3 
1.3 
1.3 

1.3 
1.3 
1.3 
1.3 
1.3 

5.1 
8.0 
6.0 
6.0 
6.0 
8.7 



8.7 
8.7 
8.7 
8.7 



8.7 
8.7 



8.7 
8.7 



8.7 

8.7 



5.5 
5.5 
5.5 



5.5 
5.5 
5.5 
5.5 



5.5 
5.5 
5.5 
5.5 
5.5 

5.5 
5.5 
5.5 
5.5 
5.5 

5.5 
5.5 
5.5 
5.5 
5.5 

5.5 
5.5 
5.5 
5.5 

5.5 

5.5 
5.5 
2.0 
2.0 
2.0 
2.0 



2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

4.5 
4.5 
4.5 
4.5 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 
3.0 



3.0 
3.0 
3.0 
3.0 
3.0 

.3.0 
3.0 
4.5. 
4.5 
4.5 

4.5 
4.5 
4.5 
4.5 
4.5 

4.5 
4.5 
4.5 
4.5 
4.5 

4.5 

4.5 
4.5 
4.5 
4.5 

4.5 
4.5 
4.5 



4.5 
i.i 
4.5 
4.5 
4.5 

4.5 
4.5 
4.5 
4.5 
4.5 

4.5 
4.5 
4.5 
4.5 
4.5 

4.5 
4.5 
4.5 

4.5 
4.5 

4.5 
4.5 
4.5 
4.5 
4,5 

4.5 
4.5 
4.5 
4.5 
6.5 



6.5 
6.5 
6.5 
6.5 

6.5 

6.5 
6.5 
2.1 

5.7 
8.5 

8.5 
8.5 
8.5 
8.5 
8.5 



8.5 
8.5 

8.5 



8.5 
8.5 
8.5 
8.5 
8.( 



8.5 
8.5 
8.5 



8.5 
8.5 
8.5 
8.5 



8.5 
8.5 

8.5 
8.5 
8.5 

8.5 
8.5 
8.5 
8.5 
8.5 
8.5 



8.5' 
8.5 
8.5 
8.5 



8.5 
8.5 
8.5 
8.5 

8.5 
8.5 
8.5 
8.5 
8.5 



8.5 
8.5 
8.5 



8.5 
8.5 
8.5 



8.5 
8.5 
8.5 



8.5 
8.5 
8.5 

8.5 
8.5 



8.5 
8.5 
8.5 



8.5 
8.5 



8.5 
8.5 



9.0 
9.0 



3.0 
.0 



.0 

6.4 



9 
4.6 



4.6 
4.6 
4.6 
4.( 



4.6 
5.5 



8.5 
8.5 
8.5 

8.5 
8.5 
8.5 
.0 
4.6 

4.6 
4.6 
4.6 
4.( 
4.6 

4.6 
4.6 
4.6 



4.6 
4.6 
4.6 
4.6 
4.6 

.0 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 
2.5 



2.5 
2.5 
2.5 
2.5 
2.5 

4.5 
4.5 
7.5 

7.5 
7.5 



7.5 

7.5 
7.5 

7.5 
7.5 
7.5 

8 



SANTA AKA RIVER BASIN. 



279 



Monthly discharge o/Greenspot inpe line near Mentone, Calif., for 1897-1901, 1903-1904, 

and 1911-1918. 



Discharge in second- 



Maxi- 
mum. 



Mini- 
mum. 



Run-oflE 
(total in 
acre- 
feet) . 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



1897. 

August 

September . . . 

1897-98. 
October 1-21.. 

April 

May 

June 

July 

August 

September... 



October 

November 

December 

January 1-9 . . 

February 

March 

April 

May 

June 

July 

August 

September... 
1899-1900. 

October 

November 

December 

January 

February 

Ivlarch 

April 

May 

June 

July 1-15 

August 

September... 

1900-1901. 

October 

November 

December 

June 

July 

August 

September . . . 

1901. 

October 

November 

December 

1903. 

April 

May 

June 

July 

August 

September 



The period . 

1903-4. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 







9.0 
10.7 



9.0 
6.5 
3.8 
5.7 
4.8 
3.7 
5.1 
5.4 
8.0 
7.3 



21.5 

15.8 



13.2 
17.0 
17.2 
13.2 
9.1 
9.1 
8.2 

9.0 
10 
10.7 
11 

11.6 
12.2 
11.8 
11.2 

5.4 



8.6 
9.5 
2.1 
2.5 
1.5 
2.3 
1.9 
.4 
1.1 









1.5 

2.3 

2.7 

5.5 

5.7 
1.7 
1.2 






4.24 
6.43 



2.6 
.0 
.0 
1.3 
5.1 
3.0 
.0 
.3 



3.44 
5.75 
4.62 
3.81 
4.36 



550 
1,010 
1.060 
786 
560 
560 



553 
595 
658 
196 
644 
750 
702 
689 
300 
312 
312 
244 

406 
512 
584 
129 
139 
92 
137 
117 
24 
33 





166 
327 

350 
101 
74 






261 
383 



2.21 


131 


2.13 


131 


2.97 


183 


3. 10 


178 


2.37 


146 


3.12 


186 



212 
342 

284 
234 
259 



1904. 

October 

November. . 
December.. 



The period . 

1911. 

September 7-30. 

1911-12. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 



The year. .. 

1912-13. 

October 

Novem])er 

December 

January 

February 

March 

April 

May 

Jime 

July 

August 

September 



The year. 

1913-14. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September. . . 



1914-15. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 

June 

July 

August 

Septemberr. . 



The year. 



The year. 

1915-16. 

October 

November 

December 

January 

February 

March. 



8.4 
1.9 
2.4 



7.5 
7.3 
6.0 
5.0 
5.0 
5.0 
1.0 
5.5 
4.0 
6.0 
5.5 
5.5 



3.5 

2.5 

4 

2.5 

8.5 

6.5 



4.5 
2.9 
2.5 
2.5 
6.0 
6.0 
7.0 
7.0 
7.0 
7.6 
6.5 
6.0 



6.0 
6.0 
4.0 
2.0 
2.0 
4.5 
7.0 
6.0 
6.0 
7.0 
7.0 
8.5 



.0 
.0 
.0 
.0 
2.5 
.0 
.0 
1.0 
3.5 
2.0 
1.0 
2.5 



2.0 

2.5 
.8 
.0 

1.4 

2.5 

2.5 
.5 

1.5 
.0 

1.5 

1 



.5 
1.2 
1.5 

.0 
1.0 
4.0 
3.2 
3.6 
5.5 
5.0 
4.0 
3.0 



3.0 
3.0 
2.0 
.0 
2.0 
1.0 
4.0 
5.0 
6.0 
6.0 
5.3 
5.0 



280 SURFACE V/ATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Monthly discharge of Greenspot pipe line near Mentone, Calif., for 1897-1901, 1903-1904 ^ 
and 1911-1918— QojitinuQdL. 



1915-16. 

April 

May. 

June 

July 

August. 

September. . 



The year . 

1916-17. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 



Discharge in second- 
feet. , 



mum. mum. 



8.7 
5.5 
4.5 
4.5 
6.6 
8.6 
8.5 
S.5 
9.0 



8.5 
8.6 
8.5 



1.3 
5.5 
2.0 
2.0 
3.0 
4.5 
2.1 
8.5 
.0 
8.5 



3.83 
8.03 
8.50 
8.50 
8.50 
8.50 



5.13 



8.27 
5.05 
2.87 
4.12 
4.63 
7.73 
8.50 
8.22 
8.53 



Run-ofl 
(total in 
acre- 
feet). 



494 
506 
523 
523 
506 



285 
492 
311 
176 
229 
285 
460 
523 



1916-17. 

August 

September.. 



The year. 

1917-18. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September... 



The year 



Discharge in second- 
feet. 



mum. mum. 



9.0 
9.0 



.0 
.0 
2.5 



9.00 
9.00 



9.0 
9.0 
8.06 
8.72 
5.48 
2.11 
6.90 
9.0 
9.0 
9.0 
9.0 
9.0 



.0| 



Run-off 
(totalin 
,acre- 
feet). 



553 
536 



653 
536 



130 
411 
553 
536 
553 
563 
536 



MILL CHEEK III CAITYOIT AT HSADWORKS OF CRAFTON CAHAL, CALIF. 

Mill Creek is one of the larger tributaries of Santa Ana River. It 
rises on the western slope of the San Bernardino Mountains, draining 
the area immediately south of the headwaters of Santa Ana River. 
Mill Creek appears from its canyon about 5 miles east of Redlandis. 
The Crafton Water Co. diverts practically all the water of this creek 
at the mouth of the canyon. The water passes over a weir, and the 
volume was therefore determined v/ith considerable accuracy. The 
records have been furnished by Mr. Herbert Garstine, president of the 
Crafton Water Co. They are particularly accurate for low-water 
measurements. 

Discharge measurements of Mill CreeJc at headworJcs of Crafton canal, Calif., for 1896-1905. 



July 29 

1898. 
Apr. 12 
29 
June 12 
July 23 
Sept. 8 
Oct. 18 
Nov. 9 
Dec. 8 

1899.- 
Jan. 12 
Feb. 18 
Mar. 23 
May 6 

31 
June 15 
July 15 

27 
Aug. 24 

1900. 
Apr. 14 
May 5 
July 13 
Oct. 2 



Made by— 



J. H. Quinton.. 



J. B. Lippincott.. 

.do. 

.do. 

.do. 

.do. 



F. H. 01m.sted., 

....do 

....do 



S.G.Bennett.. 

do 

do 



..do.. 
..do.. 
..do.. 



..do.. 
..do., 
..do.. 



S.G.Bennett 

do 

do 

W. W. Cockins, jr.. 



Dis- 
charge. 



Sec. -feet. 
14.2 



15.7 
18.9 
18.1 
11.8 
13.1 
15.3 
15.2 
12.6 



10.8 
10.4 
15.6 



7.4 
4.3 
7.2 

10.8 

47 



1901. 
Mar. 30 
July 6 
Dec. 5 

1902. 
Apr. 5 
May 31 
July 10 
Sept. 3 
Nov. 5 



Apr. 1 
24 
May 16 
Jxme 9 
July 1 
Sept. 1 

1904. 
Sept. 21 
Nov. 11 

1905. 
Sept. 23 



Made by- 



. G, Bennett.. 

...do 

...do 



S.G.Bennett.. 

do 

do 

W. B. Clapp.. 
S. G.Bennett.. 



W.B. Clapp 

Clapp and Clausen.. 

W. B.Clanp.... 

do 

do 

do 



W. B. Clapp.. 
E.G. LaRue.. 



Dis- 
charge. 



c.-feet, 
20 
23.3 
14.5 



21 

19.2 
10.8 
5.3 
12.3 



1,280 
39 



29 
22 



15.2 
14.1 



Note. — Measurements include the total flow at this point. 



SANTA ANA RtVER BASIN. 



281 



Daily 



in second-feet, of Mill Creeh in canyon at hcadivorJcs of Crafcon canal, 
Calif., for 1897-1902. 



Day. 



July. 



Aug. 



Sept. 



Day. 



July, 



Aug. 



Sept, 



Day. 



July. 


Aug. 




9A 




22 
21 
21 








22 
21 


28 


22 


21 


27 


20 


27 


20 


24 


20 


24 


20 



Sept. 



7. 
8., 
9. 
10.. 



1897. 

21 

22 

23 

24 

25 

26 

27 

28 , 

29 

30 

31 



20 
27 
19 



19 
18 
18 
19 
19 



Day. 



Apr. 



May. 



July. 



Aug. 



Sept. 



21.. 
22.. 
23.. 



27.. 
28.. 
29-. 



17 I 
17 I 
17 
17 

16 
17 
17 



s Not entire flow of creek. 



282 SUKFACE WATER OF PACIFIC SLOPE, SOUTHERIT CALIFORNIA. 

Daily discharge, in second-feet, of Mill Creek in canyon at Jteadworks of Crafton canalj 
Calif. , for 1897-1902— Contmued. 



Day. 


Oct. 


Nov. 


Dee. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


JUBO. 


July. 


Aug. 


Sept. 


1898-99. 
1 


9 
9 
9 
9 
9 

9 
9 
9 
9 

9 

9 
9 
9 
9 
9 

9 
9 
9 
9 
9 

9 
9 
9 
8 
9 

8 

9 

9 

9 
10 
10 

4.8 
5.3 
.5.3 
4.3 
4.6 

6.3 
5.6 
4.8 
5.6 
5.2 

5.7 
6.1 
6.2 

8.5 

7.8 

7.8 
7.8 
7.2 
7.8 
7.2 

7.2 
7.2 
7.8 
6.6 
6.6 

7.8 
7.2 
7.2 
7.2 
7.2 
7.2 


10 
10 
10 
10 
10 

10 
10 
10 
10 
10 

10 
10 
10 
10 
10 

10 
10 
10 
10 
10 

10 
10 
10 
10 
10 

10 
10 
10 
10 
10 

7.2 
7.2 
6.8 
6.8 
7.2 

7.2 
7.2 
7.2 
6.1 
6.1 

6.8 
6.8 
6.4 
11.2 
11.2 

9.8 
9.8 
9.8 
9.8 
9.7 

9.7 
9.6 
9.7 
9.8 
10.4 

10.0 
9.8 
9.8 
9.8 

9.8 


10 
10 
10 
10 
10 

10 
10 
10 
10 

11 

11 
11 
11 
11 

12 

11 
12 
11 
11 
11 

11 
11 
10 
10 

11 
11 

10 

11 
11 
11 
11 

9.8 
9.5 
9.4 

8.8 
8.0 

7.8 
8.0 
5.3 
9.0 

8.8 

9.0 
8.2 
9.8 
9.6 
9.6 

7.8 
14.6 
13.0 
12.6 

9.8 

9.4 
11.0 
9.6 
9.8 
9.8 

10.0 
10.0 
8.5 
9.4 
9.8 
10.0 


11 
11 
11 
11 
11 

12 
11 
10 
11 


11 
11 
11 
11 
11 

11 
11 
11 
12 
12 

12 
12 


11 
11 

W 

11 

11 
11 

11 

10 
10 
10 
10 
10 

10 
13 
13 
11 
15 

14 
12 
12 
16 
16 

16 
12 
12 
16 
16 
14 

9.8 
9.8 
9.8 
11.9 
10.2 

10.2 
10.2 
10.2 
10.2 
9.8 

9.8 
9.6 
9.6 
9.8 
9.8 

9.8 
9.8 
9.8 
9.8 
9.8 

10.2 
10.2 
13.2 
10.6 
9.8 

10.2 
10,2 
11.6 
10.2 
9.8 
9.8 


13 
13 
12 
12 
12 

11 

12 
12 
12 
12 

12 
11 
11 
11 
11 

12 
12 
13 
12 
11 

11 
12 
11 
12 
12 

12 
12 
12 
12 
12 

9.0 
9.1 
10.0 
9.8 
9.2 

9.3 
9.8 
9.8 
9.7 

8.9 

8.9 
9.3 
9.3 
8.9 
8.9 

9.8 
8^9 
8.9 
8.9 
8.9 

10.2 
13.3 
10.8 
10.8 
10.2 

10.2 
10.2 
10.8 
13.0 
3.0 


12 
11 
11 
11 
11 

11 

12 
12 
12 

12 

12 
12 
12 
11 
12 

12 
12 
11 
11 
11 

11 
11 
11 
10 
10 

10 

11 

10 

11 

11 
11 

13.0 
13.0 
12.1 
12.1 

"is.'s' 

14.6 
16.4 
17.0 





12.0 
12.0 
12.0 
13.0 
12.0 

12.0 
10.1 
12.0 
10.1 
10.1 

9.9 
9.9 

8.4 
8.6 
8.6 
8.2 


17 
13 

12 
11 

10 

11 
10 
10 
10 

8 

8 
8 
8 
7 
7 

8 
9 

8 
8 
8 

8 

8 

7 

7 

8 

8 

6 
4 

8.2 
8.2 
7.6 

7.8 
8.0 

8.0 
8.0 
8.0 
8.0 
8.0 

8.0 
8.0 

8.2 
8.0 
8.0 

8.2 
7.2 
4.8 
6.8 
7.6 

7.6 
6.5 
6.5 

""5.'4' 
5.4 
5.3 


5.6 
6.2 
6.2 
6.2 
4.9 

6.7 
6.7 
6.7 
6.7 
6.2 

6.2 
6.2 

4.8 
4.8 
5.1 

7.2 
6.3 
4.9 
6.2 
4.9 

5.1 

5.8 
6.2 
6.5 
5.4 

5.4 
4.8 
4.8 
5.5 
5.5 
5.5 

5.5 
5.5 
5.6 
5.6 
6.3 

6.3 
5.1 
4.3 
4.3 
4.5 

4.5 
5.5 
5.5 
5.5 
5.5 

4.5 
3.8 
3.3 
4.4 
4.0 

5.4 
5.4 
4.8 
5.0 
5.0 

5.0 
5.0 
5.0 
5.0 
4.7 
4.7 


7.1 
6.2 
5.8 
6.7 

7.2 

6.9 
6.7 
6.2 
6.2 
6.2 

6.2 
6.2 
5.6 
5.3 
6.2 

5.6 
5.3 
6.0 
6.0 
5.3 

S'.9 
5.9 
5.3 
5.2 
5.3 

5.3 
5.8 
4.3 
4.3 
5.3 
2.9 

4.9 
4.9 
5.1 
5.7 
5.7 

5.5 
5.5 
5.5 
5.1 
5.1 

5.4 
5.5 
5.5 
6.5 
5.5 

5.5 
5.5 
6.5 
5.5 
5.5 

5.5 
5.5 
4.9 
5.5 
4.9 

4.9 
4.3 
4.3 
4.3 
5.1 
5.1 


5.5 


2 


5.6 


3 


5.4 


4 


5.4 


5 


5.5 


6 


5.6 


7 


5.6 


8 


5.3 


9 


5.7 


10 


5.3 


11 


5.3 


12 


4.9 


13 


4.9 


14 




12 
12 

12 


4.9 


15 . 


5.2 


16 


4.8 


17 . .. . 


3.2 


18 




12 
12 
12 


3.0 


19 


3.0 


20 


2.8 


21 - ... 


2.8 


22 




11 
11 

13 
11 

12 
12 
11 


2.8 


23 


2.8 


24 . . 


2.8 


25 


2.8 


26 


2.8 


27 


2.9 


28 


2.0 


29 


2 7 


30 






2.8 


31 








1899-1900. 
1 


9.8 
10.0 


10.2 
10.6 
10.0 
10.2 
10.6 

10.6 

10.6 

10.2 

..10.6 


5.1 


2 


5.6 


3 


5.5 


4.... 


5.7 


5 : 


5 5 


6 


5.5 


7 


5 


8 


5.0 


9 


5.0 


10 


■"9."8' 
10.0 
10.0 

10.6 
10.4 
10.6 
10.6 
10.6 

10.4 
10.4 
10.4 
10.4 
10.6 
10.2 


10.2 

10.2 
10.2 
10.0 
10.0 
10.0 

10.0 
10.0 
10.0 
10.2 
10 2 

10.2 
10.2 
10.2 
10.2 
10.2 

10.2 
9.8 
9.8 


5.5 


11 


5.5 


12 


5.5 


13 


5.5 


14 


5.5 


15 


4.5 


16 


4.5 


17 


4.3 


18 


5.1 


19 


4.5 


20 


4.1 


21 


5 1 


22 ... 


5 1 


23 


4.9 


24 


5 3 


25 


5.3 


26 


5.3 


27 


4 9 


28 


4,9 


29 


4.9 


30 


4 9 


31 









SAiSTTA AISTA RIVER BASIK. 



28^ 



Daily discharge, in second-feel, of Mill Creek in canyon at headicorJcs of Crafto7i canal. 
Calif., for 1897-1902— GoJitiniied. 



Day. 



1900-1901 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 



June. ! Jiil^" 

I 



19.00 
19. 12 
19.00 
19.00 

18.00 

16.96 
16.96 
16.80 
16.80 
16.00 

16.00 
16.00 
18.00 
15. 04 
15.04 



Aug. ! Sept. 



50.00 
30.00 
20.00 
20.00 
20.00 

19.10 
19.10 
18.00 
16.08 
16.08 

16.08 
18. 24. 
16.98 
16.96 
16.96 



16.00 
16.00 
16.00 
16.58 
16.58 

16.58 
16.58 
16.00 
16. 60 
14.04 

14.00 
14.00 
14. 00 
14.00 
13.18 



1900-1901, 
16 
17 
18 
19 
20, 

21. 
22. 
23. 
24. 
25. 
26. 
27. 
28. 
29. 
30. 
31. 



i 



20.08 
20.08 
21.00 
20. 90 
20. 40 
20.08 
20.08 
20.00 
19.80 
19.80 
19. 50 
19. 40 



15. 04 
15. 04 
15. 04 
14. 40 

13. 94 
14.40 

14. 40 
13. 94 
13. 94 
14.40 
14.40 
16.96 
15.04 

15. 04 
15. 04 
15.04 



Aug. 



16.00 
16.00 

15.04 
15.04 
15. 04 
16.00 
16.00 
16.00 



Sept. 



13.18 
13.18 
12.30 
12.30 
12.30 

11.42 
11.42 
12.30 
12.30 
14.58 
13. 18 
13.18 
13.18 
13. 18 
13.18 



'Day. 



9.. 
10.. 



13.18 
13. 18 
13. 18 
13. 18 
13.18 

13.18 
13. 18 
13. 18 
12.80 

12.64 



12.30 
12.30 
12.30 
12.80 
12.30 

12. 30 
12.30 
12. 30 
12.30 

12. 30 



11.70 
10.26 
11.10 
12.28 
12.28 

12.10 
12.10 
12.10 
12. 10 

12.10 



Da J'. 



1901 

11 

12 

13 

14 

15 

16..... 
17 

IS 

19 

20 



12. &4 
12.64 
12.30 
12.30 
12. 30 

12.30 
12.30 
12.30 
12.30 
12.30 



12.30 
12. 30 
12.30 
12. 30 
12. 30 

12.30 
12 30 
12.30 
12. .30 
12.30 



12. 10 
12.10 
12.10 
12.10 
12. 10 

12.10 
12.10 
12. 10 
12.10 
12.10 



1901 

21 

22 

23 

24 

35 

26 

26 

28 

29 

30 

31 



12.30 
12. 30 
12. 30 
12.30 
12. 30 

12.30 
12. 30 
12. 30 
12. 30 
12. 30 
12.30 



12. 30 
12.30 
12. .30 
12. 30 
12.30 

12.30 
12. -30 
12.30 
12. 30 
11. GO 



12.10 
12.10 
12.10 
12.10 
12,10 

12.10 
12. 10 
12.10 
12. 10 
12.10 
12.10 



24.. 

25.. 

26.. 
27-. 
28.. 
29.. 
30.. 
31^.. 



Day. 



1902. 
1.. . . 


12.14 


2 


12. 14 


3 


12.14 


4. 


12.14 


5- 


12.14 


6. 


12.14 


7. . 


12.14 


8. 


12.. 14 


9 


12. 14 


10. 


12.7 


11.. 


12.74 


12. 


12.78 


is:::: : : : : 


12.74 


14. 


12. 74 


16. 


12. 74 


10. 


12 74 


17. 


12 74 


18.. 


12. 74 


19". 


12.74 


20. 


12 74 


21 


12.71 


22 




23;:::::::::::::::::;; ::: 



Jan. Feb. May. June. July. Aug. 



11.42 
11.42 
11.42 

11.42 
12.3 
12.3 



21.02 

22.0 
22.0 
22.0 
22.0 

24.6 

24.6 
24.6 
24.26 
24.26 
24.26 

24.0 
24.0 
20.6 
23. 18 
23.18 

23.18 
21.02 
21. 02 
21.02 
21.02 

19. 48 
19.48 
18. 96 
18.96 
20.0 
20.0 



19.48 
19.48 
17.78 



17.92 
16. 48 
17.54 
17.54 

15. 52 

14. .56 

15. 52 
15. 52 
15.04 

15.04 
14.14 

14.14 
14.14 
14.14 

14.4 
13.60 
13.60 
13.60 
13.60 

13.60 
14.14 
14.14 
14.14 
14. 14 



13. 60 


9.36 


13.60 


9.36 


1.3.60 


9.36 


13. 60 


9.36 


13.60 


9.36 


13.60 


9.36 


13. 60 


9.36 


13. 18 


9.36 


13,18 


9.76 


12.30 


9.76 


12; 30 


9.36 


12.30 


9.36 


12; 30 


9.36 


11.86 


9.36 


11.86 


9.36 


11. 86 


9.36 


10.80 


7.96 


11.0 


9.36 


11.0 


9.36 


10. 38 


9.36 


9.96 


9.36 


10: 39 


6.80 


10. 16 


8.80 


10.16 


8.80 


11.86 


8.80 


10.8 


8. SO 


10: 16 


8.80 


10.16 


8. SO 


10: 58 


8.80 


10; 16 


8.80 


9.48 


8.80 



8.96 
8.96 
8.96 
8.96 



9.76 
10.40 
10. 40 

9.82 
10. 40 
10. 58 
10. 58 
10. 58 

10.0 



9.0 
9.0 
8.0 
8.0 



8.16 
8.16 
8.16 



8.80 
8.16 
8.16 



8,96 
8.96 

8.16 

8.16 
8.16 
8. 16 



8.96 
8.96 

8.98 
8.96 
8.96 
8.96 



9.76 
9.76 



14.14 
11.86 
11.86 
11.42 
11.22 

11.22 
11.22 
11.22 
16.80 
13.18 

11.42 
12.74 
12. 74 



16.0 
16.0 
16.0 
16.0 
16.0 



16.0 
14,4 
13.8 
13.8 
13.8 

12.74 
12.74 
12.74 



a. On Aug. 16 a cloudburst iu Mill Creek canyon and Crafton Hills filled zanja and supply canal with sand. 
Note.— No record Jan. 22 to Feb. 17 and Feb. 24-28, 1902, Nov. 24-25, 1903, and after Dec. 10, 1903. 



284 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA, 



Daily discharge, in second-feet, of loater pumped from Mill Creeh at Crafton headvjorJcs, 

Calif, for 1900. 



Day. 



7.. 
8.. 
9.. 
10.. 

11.. 
12.. 
13.. 



16.. 
17.. 
18-. 
19.. 
20.. 

21.. 
22.. 
23.. 

24.. 
25.. 



29.. 
30.. 
31.. 



Mar. Apr. May. June. July. Aug. Sept. Oct. Nov. 



1.0 
1.5 
1.7 
1.7 



1.7 
1.7 
1.7 
1.7 

1.7 

1.7 
1.7 
1.7 
1.7 
1.7 

1.7 
1.7 
1.7 
1.7 



2.0 
2.0 
2.0 
2.0 



2.2 
2.2 
2.2 
2.2 



2.2 
2.2 
2.2 
2.2 
2.2 

2.2 
2.2 
2.2 
2.2 
2.2 
2.2 



2.2 
2.2 
2.2 
2.2 
2 2 

2.2 
2.2 
2.2 
2.2 
2.2 

2.2 
2.2 
2.2 
2.2 
2.2 

2.2 
2.2 
2 2 
2.2 
2.2 

3.7 
3.7 
3.7 
3.7 
3.7 

3.7 
3.7 
3.7 
3.7 
3.7 



3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 



3.3 
3.5 
3.5 
3.5 
3.5 

3.3 
3.2 
3.2 
3.2 
3.2 

3.2 
3.2 
3.2 
3.2 
3.2 

3.2 
3.2 
3.2 
3.2 
3.3 
3.3 



2.9 
2.9 
2.9 

2.9 
2.9 
2.9 
2.9 
2.9 

2.9 
2.9 
2.9 
2.9 
2.9 



2.9 
2.9 
2.9 

2.9 
2.9 
2.9 
2.9 
2.9 

2.9 
2.9 
2.9 
2.9 
2.9 
2.9 



2.9 
2.9 
2.9 
2.9 
2.9 

2.9 
2.9 
2.9 
2.9 
2.9 

2.8 
2.9 
2.9 
2.9 
2.9 



2.9 
2.9 
2.9 

2.9 
2.9 
2.9 
2.9 
2.9 

2.9 
2.9 
2.2 
2.9 



2.9 
2.9 
2.9 
2.9 
2.9 

2.9 
2.9 
2.9 
2.9 

2.8 

2.8 
2.8 
2.8 
2.8 
2.8 



2.8 
2.8 
2.8 



2.8 
2.8 
2.8 
2.8 

2.8 
2.8 
2.8 
2.8 
2.9 
2.9 



2.9 
2.9 
2.9 
2.9 
2.9 



Note. — No record from Nov. 17 to Doc. 31. 

Monthly discharge of Mill Creeh canals in canyon at Crafton headwords, Calif. , for 1895-96 

and 1899-1902. 







[Drainage area, 47 square miles.] 






• 




Month. 


Discharge in ? 


econd-feet 




Run-off. 




Maximum. 


Minimum. 


Mean. 


Per 

square 
mile. 


Depth in 

inches on 

drainage 

area. _ 


Total in 
acre-feet. 


Aueu.st 


1895. 


27.6 
26.5 

24.5 

21.4 

16 

16 

13.2 

15 

13.1 


24.0 
19.5 

17.0 
9.4 
5.1 
6.1 

8.7 
7.4 

9.0 


24.5 
20.0 

19.6 
13.4 
10.3 
11.5 
11.6 
11.5 

10.5 


0.52 

.47 

.42 
.28 
.22 
.24 
.25 
.24 

.22 


0.60 
.52 

.48 
.33 
.25 

.28 
.28 

. 27 

.26 


1 505 


fceptember 


1,310 


October 


1895-96. 


1,205 


May... 


825 


June. . 


615 


July 


709 


August 


716 


September. . 


687 


October. 


1896. 


637 




1899. 




February . . 


13 
16 
13 
12 

17 
7.2 
7.2 


11 
10 
11 
10 

4.8 
2.9 
2.0 


n.6 

12.2 
11.8 
11.2 

8.7 
5.8 
5.8 
4.1 


.25 
.26 
.25 
.23 
.19 
.12 
.12 
.09 


.26 
.30 
.28 
.26 
.21 
.14 
.14 
.10 


644 


March... 


750 


April 


702 


May 


689 


Jime. 


518 


July 


357 


August 


357 


September 


244 




^riod 




Thep 












4,260 






— 















SA:^TA ANxl EIVER BASIl^. 



285 



Monthly discharge of Mill Creek canals in canyon at Crafton headworhs, Calif., for 1895-96 
and 1899-1902— QontmuQd. 





Discharge in second-feet. 


Eun-off, 


Month. 


Maximum, 


Minimum. 


Mean. 


Per 
square 
mile. 


Depth in 

inches on 

drainage 

area. 


Total in 
acre-feet. 


1899-1900. 
October 


8.5 
11.2 
14.6 
10.6 
10.6 
13.2 
13,3 
17.0 
8.2 
6.3 
5.7 
5.7 


4.3 
6.1 
5.3 
9.8 
9.8 
9,6 
8,9 
8.2 
6.3 
3.3 
4.3 
4.3 


6,5 

8.6 

9.5 
10 
10 
10 
10 
12 

7 

5 

5 

5 


0.14 
.18 
.20 
.22 
.22 
.22 
.22 
.27 
.16 
.11 
.11 
.11 


0.16 
,20. 
,23 
.13 
,23 
.25 
.25 
.31 
.18 
.13 
.13 
.12 


400 


November 


612 


December 


584 




817 


February 


555 


March 


615 


April 


595 


May 


738 


June 


417 


July 


307 


August. ... 


307 


September 


298 






The period 


17.0 


3.3 


8,22 


.175 


2.32 


5,640 






1900-1901. 
October 


5.8 
8.5 
19.12 


3.8 
. 5,1 
13. 94 


5 

15.86 
19.07 

14.04 

12.58 
12.28 
12.00 


.11 
.11 
.34 
.41 

.30 

,27 
,26 
,26 


.13 
.07 
.39 
.35 
.33 

.31 
.29 
.30 


307 


November 1-17 


169 


July 


975 




867 


September 


16,58 

13.18 
12. 30 

12.28 


11.42 

12.30 
11.60 
10.26 


833 


1901. 
October. . 


774 


November 


732 


December. 


738 






1902. 
January 1-21 . . 


12.78 
12.3 
24.6 
19.48 
13.60 
9.76 
10.58 


12.14 
11.42 
18,98 
13,60 
9.48 
6.8 
8.0 


12.5 
11.7 
22.0 
15.6 
11.7 
9,10 
9.61 






521 


FebiTiary 18-23.. 






139 


May&-31 






1,180 


June. . 






928 


July 






719 


August 






560 


September 1-7, 9-30 






553 










1902-3. 
October 


9.76 
16.80 
16.0 


8.16 
9,36 
12.74 


8.62 
12,2 
13.6 

■ 






530 


November 1-23, 26-30 






678 


December 1-10 




.... 


270 











a Partial month. 
MILL CREEK AT FOREST HOME.i CALIF. 

Location.— In NW. \ NE. \ sec. 13, T. 1 S., R. 1 W., a! Forest Home, San Bernardino 

County, 2\ miles below Falls Creek, 4 miles above Mountain Home Creek, and 

14 miles east of Redlands. 
Drainage AREA, — Not measured. 
Elevation. — About 4,900 feet above sea level. 
Records available. — September 22, 1903, to September 30, 1918. 
Discharge. — Obtained by combining results of current-meter measurements in 

power canal with flow over diverting dam. The flow over the diverting dam is 

only roughly determined. 
Extremes op discharge. — 1903-1918: Maximum mean daily discharge reported, 

2,200 second-feet March 7, 1918 (no record for flood of January, 1916); minimum 

mean daily discharge reported, 7.0 second-feet November 19 and 20, 1904. 
Diversions. — None. 
Regulation. — None. 
Accuracy. — Daily discharge is mean of two observations recorded each day at 6 a. m, 

and 6 p. m. Records good for periods in which total flow of creek is diverted into 

power canal; subject to error for higher stages. 
Cooperation. — Record furnished by Southern California Edison Co., through H. 

W. Dennis, constructing engineer. 

1 " Akers Camp" on San Gorgonio topographic map, U. S. Geological Sm-vey. 



286 SURFACE WATER OE FACIFiC SLOFE^ SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Mil Qreeh at Forest Home^ Cdlif.^fw^ 190$-1M8. 



Day. 



Sept. 



Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


11 


14 


17 


15 


11 


11 


10 


14 


17 


14 


11 


11 


10 


(a) 


16 


14 


11 


11 


9.8 


18 


16 


14 


11 


12 


9.5 


18 


16 


14 


11 


11 


9.fi 


21 


16 


14 


10 


(&) 


9.5 


20 


16 


14 


TO 


11 


9.5 


21 


16 


14 


10 


10 


9.4 


20 


16 


13 


10 


10 


11 


20 


16 


13 


10 


10 


11 


20 


16 


13 


ID 


10 


10 


20 


16 


13 


9.9 


11 


10 


20 


16 


13 


9.9 


11 


1] 


20 


16 


13 


9.8 


11 


11 


18 


16 


13 


9.7 


11 


11 


17 


16 


12 


9.7 


12 


10 


16 


15 


12 


9.6 


10 


10 


16 


15 


12 


9.6 


10 


10 


18 


15 


14 


9.5 


10 


26 


18 


15 


11 


9.4 


10 


11 


IS 


15 


12 


9.4 


10 


11 


17 


15 


12 


9.4 


11 


50 


26 


15 


12 


9.3 


10 


13 


16 


16 


12 


9.0 


10 


12 


17 


16 


12 


10 


11 


15 


17 


16 


12 


12 


11 


17 


17 


15 


11 


12 


11 


18 


16 


15 


11 


11 


10 


48 


15 


15 


11 


11 


10 


19 


16 


15 


11 


11 


10 


14 




15 




11 


9.8 



Sept. 



1... 

2... 
3... 



9.. 
10 . . 



12., 
13 . . 
14., 

15., 



21. 
22. 
23. 
24. 
25. 

26. 
27. 
28. 
29. 
30, 
31- 



10 
9.2 
9.0 



9.6 
9.7 



8.7 
8.7 



8.7 
8.7 
8.7 
8.6 



8.5 

8.4 



Apr. 



May. 



July. 



Sept. 



11.. 
12.. 
13.. 



22.. 
23.. 
24.. 
25.. 



8.3 

8.2 
8.2 



8.4 
8.3 



S.2 



8.2 
8.3 
8.3 
8.2 



8.2 
8.1 

8.1 
(a) 

8.0 
8.0 
8.0 
7.0 
7.0 

8.0 
7.9 
7.9 
7.8 

7.7 



7.6 
7.6 
7.6 
7.6 
7.6 

7.5 
7.5 
7.5 
7.5 
7.5 

7.5 
7.6 
7.5 
7.5 
7.5 



7.5 
7.4 
7.4 



8.0 
8.0 
8.1 
&1 



8.2 
12 



66 

26 
30 

27 
23 
22 
23 
26 

23 
23 
24 
24 



24 



41 
50 

(6) 
74 
73 

74 



20 
19^ 
19 



19 
19 

18 
19 

18 



19 
19 



18 
18 
18 
17 
18 

17 
17 
18 
14 
17 



17 
17 
18 
17 



i No record reported. 



b Discharge over 100 second-feet at time of one daily observation. 



SAHTA. AISA RIYER BASiH. 



287 



Dai^ discharge, in seeond-feet, of Mill Creek at Forest Home^ Calif, y for 1903-1918— ■ 



May. 



July. 



Aug. 



23 
23 
23 
23 
23 

{^) 
(6) 

(&) 
23 
22 

22 
22 
22 



17 
17 
17 
24 

23 
26 

22 
20 
20 



60 
36 
32 

fa) 
(a) 

37 



50 
45 
38 
30 



30 
30 
30 
30 
(«) 

C«) 

(a) 
60 
60 



50 
50 
50 
50 
50 

55 
60 
60 
65 
70 

70 
70 
70 
70 
70 

70 
70 
70 



45 
.45 
40 
40 



80 
80 
80 
80 

70 

65 
70 

69 
70 
70 
70 
70 

70 

70 
65 
58 
52 

50 
50 
50 
50 
45 

50 
50 
50 
50 
50 
50 



45 


35 


45 


37 




35 


(a) 


34 


65 


32 


55 






a Discharge over WO seeond-feet at time of one da% observaition. 



& No record reported. 



288 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



discharge, in second-feet, of . 



ill Creek at Forest Home, Calif, for 1903-1918- 
Continued. 



Day. 


Oct. 


Nov. 


Dee. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1907-8. 
1 


22 
22 
22 
22 
22 

22 
22 
22 
22 
22 

22 
22 
22 
22 
22 

22 
22 
22 
22 
22 

22 
23 
45 
22 
22 

22 
22 
22 
22 
22 
22 

12 
12 
12 
12 
13 

12 
12 
12 
12 
12 

12 
12 
12 
12 
12 

12 
12 
12 
12 
12 

13 
17 
20 
18 
13 

19 
14 
12 
12 
12 
12 


22 
22 
22 
21 
21 

21 
22 
21 
21 
21 

20 
20 
20 
20 
20 

20 
20 
19 
19 
19 

19 
19 
19 
19 

18 

18 
18 
18 
18 
18 

12 
12 
12 
12 
12 

12 
12 
^ 12 
12 
12 

11 
11 
11 
11 
11 

12 
11 
11 
11 
11 

11 
11 
16 
11 
11 

11 
11 
11 
11 
11 


18 
18 
18 
18 
18 

18 
18 
18 
18 
18 

18 
18 
18 
18 
18 

18 
18 
18 
18 
18 

18 
18 
18 
18 
17 

17 
17 
17 
17 
17 
17 

11 
12 
15 
13 
12 

12 
12 
11 
11 
11 

11 
11 
11 
11 
11 

11 
11 
11 
11 
11 

12 
12 
12 
12 
12 

12 
12 
12 

12 
12 
12 


17 
17 
17 
17 
17 

16 
16 
16 
16 
16 

15 
14 
14 
16 
15 

15 
14 
14 
14 
24 

14 
14 

18 
20 
18 

17 
15 
16 
16 
16 
16 

12 
12 
11 
11 
11 

11 
11 
11 
20 
11 

12 
14 
38 
45 
17 

13 
12 
12 
12 
12 

(a) 

'""45' 
12 
14 

14 
14 
14 
14 
14 
15 


15 
16 
19 
18 
16 

16 
15 
15 
15 
15 

15 
15 
15 
16 
16 

17 
16 
17 
16 
16 

16 
16 
16 
16 
14 

20 
22 
22 
21 

15 
16 
18 
18 
17 

18 
25 
18 
29 
18 

24 
25 
22 
22 
20 

21 

24 
24 
24 
24 

24 
24 
24 
24 
24 

24 
24 
24 


20 

18 
17 
16 
17 

29 
16 
16 
17 
19 

20 
21 
22 
26 
26 

29 
32 
32 
32 
32 

32 
32 
32 
32 
32 

32 
31 
32 
32 
32 
32 

23 
24 
24 
24 
23 

27 

1 

28 
28 

28 
28 
28 
28 
28 

28 
28 
28 
28 
28 

28 
28 
' 28 
28 
28 

28 
28 
28 
28 
28 
28 


32 
32 
32 
32 

32 

32 
32 
32 
32 
32 

32 
33 
34 
34 
34 

34 
34 
34 
36 
34 

34 
34 
34 
37 
40 

40 
40 
40 
40 
40 

29 
30 
43 
32 
30 

29 
28 
28 
29 
29 

31 
32 
32 

35 
36 

36 
36 
36 
36 
36 

36 
36 
36 
36 

38 

39 
40 
40 
40 
42 


40 
40 
40 
40 
40 

40 
40 
40 
40 
40 

40 
40 
40 
40 
40 

40 
40 
40 
40 
40 

40 

40 
40 
40 
40 

40 
40 
40 
40 
40 
40 

42 
45 
48 
50 
50 

50 
50 
50 
50 
50 

50 

47 
47 
47 
44 

44 
44 
44 
44 
44 

44 
44 
44 
44 
44 

44 
44 
43 
42 
42 
41 


40 
40 
40 
38 
36 

40 
40 
38 
36 
36 

34 
32 
32 
31 
30 

39 
30 
29 
28 
28 

28 
27 
26 

22 

22 
22 
22 
22 
22 

40 
40 
39 
39 
39 

38 
38 
38 
38 
38 

34 
34 
34 
34 
34 

34 
33 
33 
32 
32 

32 
32 
32 
31 
31 

30 
30 
30 
29 
29 


22 
21 
21 
21 
20 

19 
18 
20 
20 
20 

19 
19 
19 
19 
19 

28 
21 
20 
16 
20 

19 
19 
30 
20 
19 

19 
19 
19 
18 

18 
18 

29 
29 
29 
28 
28 

28 
28 
28 
28 
28 

28 
27 
27 
27 
26 

26 
26 
26 
26 
25 

25 
25 
32 
28 
28 

25 
25 
25 
25 
25 
25 


28 
16 
16 
17 
18 

28 
20 
16 
55 
29 

16 
16 
16 
16 
15 

16 
16 
19 
17 
14 

14 
14 
14 

14 
14 

15 
15 
15 
15 
15 
14 

24 
24 
24 
24 
24 

24 
24 
23 
23 
22 

22 
22 
22 
24 
(a) 

29 
26 
22 

23 
23 
22 
22 
22 

22 
23 
22 
22 
22 
22 


14 


2 .... 


14 


3 


16 


4 . . 


15 


5 


14 


6 


14 


7 


16 


8 


14 


9 

10 


^"'is 


11 


14 


12 


14 


13 . .. 


14 


14 


15 


15 


14 


16 


13 


17 


13 


18 


13 


19 


12 


20 


12 


21 


12 


22 


12 


23 


12 


24 


30 


25 


14 


26 


12 


27 


12 


28 


11 


29 


12 


30 


13 


31 




1908-9. 
1 


22 




20 


3 


20 


4 


20 


5 


21 


6 


20 


7 


20 


8 


25 


9 


20 


10 


20 


11 


20 


12 


20 


13 


20 


14 


20 


15 


20 


16 


20 


17 


19 


18 


19 


19 


19 


20 


19 


21 


19 


22 


19 


23 


18 


24 


18 


25 


18 


26 


18 


27 


18 


28 


18 


29 


18 


30 


18 


31 





I Discharge over 100 second-feet at time of one daily observation. 



SANTA ANA BIVER BASIN. 



289 



Daily discharge, in second-feet, of Mill Creeh at Forest Home, Calif, for 1903-1918 — 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Tan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1909-10. 
1 


19 
19 
18 
14 
18 

18 
18 
18 

18 
18 

18 
17 
17 
17 
17 

17 
18 
18 
17 
17 

17 
17 
17 
17 
16 

16 
16 
16 
16 
16 
16 

22 
22 
22 
22 
22 

22 
22 
22 
22 
22 

23 
23 
23 
26 
27 

27 
28 
24 
23 
22 

23 
23 
22 
22 
22 

22 
22 
22 
22 
22 
22 


16 
16 

16 
16 
16 

16 
16 
16 
18 
16 

16 
16 
16 
17 
10 

18 
17 
10 
16 
16 

16 
10 
16 
16 
16 

18 
18 
16 
16 
16 

22 
22 
25 
24 
23 

23 
22 
23 
22 
22 

22 
22 
23 
25 
25 

25 
23 
23 
23 
23 

22 
22 
22 
22 
22 

23 
23 
22 
22 
22 


16 
16 
15 
15 
15 

24 

16 

17 

...... 

24 
16 
16 
16 
10 

16 
15 
15 
15 
15 

15 
16 
16 
16 
16 

16 
16 
16 
16 
18 
(a) 

22 
22 
22 
22 
21 

21 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
22 
21 
22 
23 

23 
22 
22 
22 
21 

21 
21 
21 
21 
21 
20 


50 

54 
56 
56 
53 
54 

54 
54 
54 
55 
55 

52 
54 
53 
62 
46 

46 
46 
48 
48 
48 

49 
50 
50 
50 
50 
50 

20 
19 
20 
20 
20 

20 
20 
20 
25 

31 
22 
21 
20 

48 

27 
23 

22 
20 
20 

20 
20 
20 
29 
37 

27 
25 
27 


50 
50 
51 

52 
52 

52 
52 
52 
52 
52 

52 
52 
52 
52 
52 

52 
52 
52 
52 
52 

53 
52 
52 
52 

52 

52 
52 

52 

70 
54 
46 
75 
55 

50 
50 
40 
42 
43 

45 
46 
44 
48 
45 

45 
45 
43 
42 
41 

42 
40 

% 

42 

42 
45 
48 


50 
50 
50 
50 
50 

50 
50 
50 
50 
50 

50 
50 
50 
50 
50 

50 
50 
50 
50 
50 

SO 
50 
50 
50 
50 

50 
50 
50 
50 
60 
60 

50 
49 
59 
74 
61 

52 

66 

(o) 


60 
60 
60 
60 
60 

GO 
60 
60 
60 
56 

56 
60 
60 
57 
54 

53 
53 
53 
53 
53 

54 
55 
56 
56 
56 

56 
56 
56 
56 
60 


60 
59 
58 
59 
60 

CO 

58 
58 
57 

57 

56 
56 

55 
55 

55 
55 
55 
54 
54 

52 
51 
51 
48 
49 

49 
48 
48 
48 
46 
44 


44 
45 
45 
45 
45 

44 
44 
42 
42 
42 

42 
42 
42 
42 
42 

42 
41 
41 
40 
39 

39 
38 
38 
38 
37 

37 
37 
37 
37 
36 

81 

81 
81 

81 
81 
80 
80 
80 

80 
80 
80 

78 

77 

77 
77 
77 
76 
76 

74 
72 
70 
68 
66 

65 
64 
64 
62 
62 


36 
36 
35 
35 
33 

33 
33 
33 
32 
32 

32 
32 
32 
33 
36 

40 
36 
36 
35 

43 

41 
40 
38 
37 
37 

30 
36 
35 
35 
36 
35 

62 
60 
58 
56 
55 

53 
52 
50 
50 
50 

48 
48 
47 
44 
46 

52 
55 
56 
53 
50 

52 
52 
52 
49 

48 

48 
48 
46 
45 
44 
42 


33 
33 
33 
32 
32 

30 
30 
30 
29 
29 

29 
29 
29 
27 
27 

28 
27 
27 

27 

28 

28 
27 
27 
26 
27 

26 
26 
25 
25 
25 
. 24 

40 
40 
40 
39 

38 

37 
37 
36 
36 
35 

37 
36 
35 
34 
34 

34 
34 
34 
33 
33 

33 
33 
32 
32 
32 

32 
32 
32 
32 
31 
31 


25 


2 


25 


3 


25 


4.. 


25 


5 


25 


6 


24 


7 


24 


8 


23 


9 


24 


10 


24 


11 


24 


12 


24 


13 


24 


14 


24 


15 


24 


16 


23 


17 . 


23 


18 


23 


19 


23 


20 


22 


21 


22 


22 


22 


23 


22 


24 


24 


25 


22 


26 


22 


27 


22 


28 


22 


29 


22 


30 


22 


31 .. 




1910-11. 
1 


30 


2 






30 


3 . 






29 


4 






30 


6 ... 






30 


6 






30 


7 






30 


8 






30 


9 






30 


10 








30 


11 








29 


12 








29 


13 








29 


14 .... 








29 


15 








30 


16 








28 


17 








28 


18 




1 


27 


19 








27 


20 








27 


21 








27 


22 








27 


23 








26 


24 








26 


25 








26 


26 






97 
95 
92 
90 

88 
86 


26 


27 






27 


28 






32 


29 






37 


30 


80 
(a) 








45 


31. 











a Discharge over 100 second-feet at time of one daily observation. 

Note.— For days on which no record is given, and not otherwise noted, the discharge was over 100 second- 
feet. 



142131°— 21— wsp 447- 



-19 



290 SURFACE WATER OE PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge^ in second-feet, of Mill Creek at Forest Home ^ Calif., for 1903-1918 — « 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Juae. 


July. 


Aug. 


Sept. 


1911-12. 
1 


37 
35 
34 
34 
33 

33 
32 
32" 
32 
31 

31 
30 
29 
29 
30 

29 
28 
28 
27 
27 

26 
27 
27 
27 
27 

28 
32 
30 
29 
29 
28 


28 
27 
27 
26 
26 

26 
26 
26 
26 
26 

27 
28 
27 
26 
26 

26 
25 
25 
25 
25 

25 
25 
25 
26 
25 

25 
25 
29 
24 
25 
...... 


25 
24 
25 
24 
24 

25 
26 
25 
25 

24 

24 
24 
24 
24 
24 

24 
26 
24 
24 
24 

24 
24 
23 
23 
. 23 

23 
22 
23 
24 
23 
23 


23 
23 
23 
23 
23 

22 
22 
23 
22 
22 

23 
22 
22 
22 
22 

22 
22 
26 

22 

22 

21 
21 
21 
22 
21 

21 
23 
22 
22 
21 
21 


22 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
21 
20 
20 

20 

20 
20 
20 
19 
19 

19 
19 
19 
19 
19 

19 
19 
19 
19 


26 
21 
20 
25 
23 

46 
37 
29 

44 
64 

39 
46 
34 
36 
32 

33 
29 
28 
28 
31 

30 
27 
25 
27 
27 

27 
25 
25 
27 
26 
25 


26 
28 
29 
28 
27 

28 
60 
32 
34 
31 

31 
30 
30 
32 
34 

34 
35 
36 
36 
36 

35 
36 
38 
36 
37 

40 
37 
38 
38 
39 


40 
40 
40 
38 
39 

39 
40 
40 
40 
39 

39 
40 
40 
40 
43 

42 
43 
43 
46 
46 

47 
44 
47 
44 
45 

45 
46 
44 
46 
46 
45 


46 
44 
46 

45 
45 

45 
43 
42 
42 
41 

40 
40 
45 
37 
35 

34 
34 
34 
34 

34 

33 
34 
33 
33 
33 

32 
31 
31 
32 

32 


31 
31 

31 
31 
31 

30 
30 
30 
29 
28 

29 
29 
29 
28 
30 

29 
29 
31 
29 
27 

27 
27 
25 
26 
25 

25 
25 
25 
28 
26 
26 


26 
25 

24 
24 
24 

23 
23 
23 
22 
22 

22 
22 
22 
21 
21 

21 
21 
21 
21 
21 

21 
20 
20 
20 
19 

19 
19 
20 
19 
20 
19 


20 


2 


20 


3 


29 


4 


20 


5 


2a 


6 


20 


7 


20f 


8 


20 


9 


20 


10. 


19 


11 


18 


12 


18 


13 


18 


14 


18 


15 


18 


16.. . 


18 


17 


18 


18 


18 


19.. 


18 


20 


17 


21 


17 


22 


18 


23 


17 


24. 


17 


25 


16 


26 


16 


27 


16 


28 


16 


29 


IS 


30 


16 


31 









Note, — Discharge estimated Sept. 28-30. 



11., 

12.. 



16.. 

17.. 
18.. 
19.. 
20.. 



23.. 

24., 

25.. 



16 


19 


18 


16 


16 


18 


28 


29 


21 


15 


12 


29 


19 


18 


16 


16 


19 


29 


28 


21 


14 


12 


38 


20 


18 


18 


16 


19 


26 


30 


20 


.14 


12 


26 


20 


18 


16 


16 


19 


27 


28 


20 


14 


12 


25 


19 


18 


16 


16 


20 


27 


27 


20 


14 


12 


24 


19 


18 


16 


16 


20 


26 


28 


22 


14 


14 


24 


19 


18 


14 


17 


20 


27 


28 


21 


13 


15 


24 


19 


18 


15 


21 


20 


26 


29 


20 


13 


13 


24 


19 


17 


16 


18 


20 


28 


28 


19 


13 


13 


23 


21 


17 


16 


17 


20 


28 


29 


19 


13 


12 


22 


22 


■ 17 


16 


17 


20 


28 


28 


18 


13 


12 


20 


20 


17 


16 


17 


20 


28 


28 


18 


15 


12 


23 


20 


17 


16 


16 


20 


28 


28 


18 


13 


12 


21 


19 


17 


16 


16 


20 


28 


23 


18 


13 


12 


20 


19 


17 


17 


16 


19 


27 


24 


17 


13 


12 


20 


19 


17 


17 


16 


19 


26 


21 


17 


12 


11 


20 


19 


17 


17 


16 


20 


26 


24 


17 


12 


11 


20 


19 


17 


17 


16 


21 


27 


24 


16 


13 


11 


20 


18 


16 


16 


16 


20 


26 


24 


16 


13 


11 


21 


18 


16 


16 


16 


20 


28 


24 


16 


14 


11 


21 


18 


16 


16 


16 


21 


26 


24 


16 


15 


11 


21 


18 


16 


16 


16 


21 


27 


24 


16 


14 




20 


18 


16 


16 


16 


21 


28 


24 


16 


14 


14 


20 


18 


16 


16 


22 


21 


28 


24 


15 


13 


11 


19 


17 


16 


16 


21 


21 


28 


23 


16 


13 


11 


19 


18 


16 


16 


20 


22 


28 


23 


16 


13 


15 


20 


18 


16 


16 


19 


22 


28 


23 


16 


13 


14 


20 


18 


16 


16 


19 


23 


28 


23 


15 


13 


12 


■19 


18 


16 


16 




24 


29 


23 


15 


12 


13 


19 


20 


16 


16 




28 


29 


24 


15 


12 


22 


1 IS 




16 


16 




29 




22 




12 


13 



Note.— Discharge is mean of two observations daily except for Jan. 18, 27, and July 21, 1913, when obser- 
vations were made only in the morning. A cloudburst Aug. 22, 1&13, piled debris on weir; no observations. 



SANTA ANA EIYER BASIS". 



291 



Daily discharge, in second-feet, of Mill Creelc at Forest Home, Calif, for 1903-1918- 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1913-14. 
1 


10 
10 
10 
10 
10 

10 
10 
10 
10 
10 

10 
10 
10 
10 

9.9 

9.8 
9.8 
9.7 
9.7 
9.7 

9.6 
9.6 
9.6 
9.6 
9.6 

9.6 
9.6 
9.6 
9.6 
9.6 
9.6 


9.6 

11 

10 
9.6 
9.6 

9.6 
9.5 
9.5 
9.5 
9.2 

9.5 
9.5 
12 
9.8 

9.7 

9.6 
9.6 
9.3 

11 

10 

10 

10 
9.9 
9.6 
9.4 

9.6 
9.4 
9.4 
9.4 
9.4 


9.5 
9.4 
9.4 
9.4 
9.4 

9.4 
9.4 
9.4 
9.2 
9.2 

9.2 
9.2 
9.2 
9.2 
9.2 

9.2 
9.2 
9.2 
9.2 
9.2 

9.1 
10 
9.5 
9.4 
9.6 

9.5 
9.4 
9.4 
9.. 4 

14 

18 


10.5 
9.6 
9.6 
9.4 
9.4 

9.4 
9.3 
9.3 
9.2 

9.2 

9.2 
9.2 

9.2 
9.3 

86 

48 

18.3 

17.5 

15.3 

12.8 

12.9 
al2.6 
12.1 
13.1 

21 

34 

24 

21 

19.6 

21 

21 


22 
22 
22 
22 
22 

21 
21 
21 
21 
21 

21 
22 
23 
23 
23 

23 
23 
26 
36 

368 

152 
50 
49 

48 

47 

46 
46 
46 


46 
48 
50 
50 
50 

52 
55 
55 
55 
55 

55 
55 
55 
55 
55 

55 
55 
55 
52 
50 

50 
50 
50 
50 
48 

45 
45 
45 
45 
45 
44 


45 
45 
45 
45 
46 

46 
45 
45 
45 
45 

46 
48 
48 
48 
49 

52 
52 
52 
52 

52 

52 
50 
50 
50 
50 

«50 
50 
50 
42 

44 


44 
44 
54 
55 
55 

55 
52 
52 
52 

52 

52 
55 
56 
58 
58 

58 
58 
58 
58 

58 

58 
58 
58 
58 
58 

58 
58 
58 
58 
58 
54 


58 
58 
58 
55 
52 

52 
50 
50 
50 
48 

45 
45 
44 
42 
40 

40 
40 
40 
40 
40 

39 
37 
36 
38 
38 

37 
37 
37 
37 
36 


36 
36 
37 
37 
37 

35 
35 
34 

34 
34 

33 
33 
32 
32 
33 

33 
33 
31 
31 
30 

30 
30 
29 
28 
29 

29 
29 
29 
29 

28 
28 


28 
2S 

28 
27 
28 

27 
27 
27 
27 
27 

27 
26 
26 
26 
26 

26 
26 
26 
25 
25 

25 
25 
24 
24 
23 

22 
22 
22 
22 
22 
22 


22 


2 


22 


3.. . 


22 


4 


22 


5 


21 


6 


21 


7 


21 


S 


21 


9 


21 


10 


21 


11, 


20 


12 


20 


13 


20 


14 


20 


15 


20 


16 


19.6 


17.. 


19.5 


18 


19.4 


19 


19.0 


20 


18.8 


21 . . 


18.6 


22 


18.1 


23 


17.8 


24 


17.8 


25 


17.9 


26 


18.0 


27 


18.0 


28 


22 


29 


19.4 


30 


18.5 


31 









Note. — Daily discharge Dec. 16 interpolated by U. S. Geological Survey. 



9.. 
10.. 



.6.. 
7.. 
8.. 
.9.. 
20.. 

21.. 
22.. 
23.. 
24.. 
25.. 



29.. 
30.. 
31.. 



18.1 


16.0 


14.8 


14.6 


19.5 


30 


40 


54 


144 


87 


42 


18.6 


15.9 


14.6 


14.7 


21 


30 


41 


54 


150 


84 


39 


22 


15.7 


14.8 


14.6 


20 


30 


43 


54 


150 


87 


38 


18.8 


15.5 


14.7 


14.7 


19.2 


30 


48 


56 


144 


87 


40 


18.6 


15.4 


14.7 


14.6 


18.2 


30 


72 


54 


154 


80 


40 


18.4 


1.5.4 


14.5 


14.6 


17.8 


30 


52 


54 


144 


82 


38 


18.1 


15.4 


14.5 


14.5 


17.9 


30 


52 


54 


144 


74 


38 


17. 8 


15.4 


14.6 


14.3 


17.9 


30 


50 


54 


124 


72 


38 


17.5 


16.0 


14.4 


14.3 


34 


30 


50 


57 


124 


70 


38 


17.4 


19.5 


14.4 


14. 3 


131 


30 


52 


61 


130 


67 


37 


17.3 


17,3 


14.9 


14.2 


40 


30 


52 


72 


124 


64 


36 


16.9 


16.2 


14.6 


14.2 


30 


30 


54 


80 


124 


62 


34 


16.8 


IG. 1 


14.7 


14.2 


29 


30 


54 


84 


124 


58 


33 


16.5 


15.9 


14, 7 


14.2 


26 


30 


54 


87 


109 


55 


36 


16.5 


15.8 


14,6 


14.4 


2.S 


31 


56 


90 


104 


54 


33 i 


16.5 


15.8 


14.5 


13.5 


30 


32 


50 


86 


113 


54 


32 


16.4 


15.7 


21 


13.6 


32 


32 


54 


108 


104 


52 


32 


16.3 


15.5 


17.6 


13.9 


32 


33 


54 


129 


102 


52 


31 


16.2 


15.4 


15.6 


13.8 


31 


33 


54 


84 


106 


52 


30 


16.3 


15.4 


15.0 


13.8 


31 


36 


54 


84 


91 


51 


30 


17.1 


15.3 


14.7 


14.1 


30 


36 


56 


94 


102 


50 


29 


17.0 


15.3 


16.2 


15.1 


30 


37 


56 


104 


102 


50 


29 


16.6 


19.0 


15.4 


14.8 


30 


48 


54 


99 


97 


84 


29 


16.2 


15.1 


15.1 


15.1 


30 


39 


54 


99 


89 


54 


29 


16.2 


14.9 


14.8 


17.3 


30 


40 


56 


109 


92 


50 


29 


15.8 


15.0 


14.9 


14.7 


30 


40 


56 


114 


92 


50 


30 


16.0 


15.0 


14.8 


14.4 


30 


40 


56 


124 


87 


54 


30 


15.8 


14.8 


14.8 


17.7 


30 


40 


57 


124 


84 


55 


29 


15.8 


14.9 


14.6 


33 




40 


60 


152 


90 


48 


29 


19.0 


14.9 


14.5 


17.1 




40 


56 


144 


87 


45 


28 


16.3 




14.5 


18.2 




40 




144 




44 


28 



Note. — Dec. 9 and 10, gage read in morning only; Felx 11,/in evening only ; Aug. 10 and 18, no record; 
discharge interpolated by the U. S. Geological Survey. 

a From mornittg readings only. 



292 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Mill Creek at Forest Home, Calif., for 1903-1918 — ■ 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1915-16. 
1 


23 
22 

22 
23 

22 

22 
22 
22 
22 
22 

22 
22 
22 
21 
21 

21 

19.8 

19.8 

21 

19.7 

19.6 
19.3 
19.1 
18.9 
18.9 

18.7 
18.7 
18.6 
18.6 
18.4 
18.4 

24 
47 
25 
24 
24 

26 
25 
24 
24 
24 

22 
24 
23 
23 
23 

22 
23 
22 
22 
21 

20 
20 
20 
19 
20 

20 
19 
19 
19 
19 
19 


18.3 
18.2 

18.0 
17.9 
17.9 

21 

19.5 

18.8 

19.0 

19.1 

19.1 
19.0 

18.7 
18.5 
18.4 

18.3 
18.1 
17.9 

17.7 
17.6 

17.3 
17.2 
17.1 
17.1 
17.1 

17.1 
17.0 
16.9 
16.9 
16.8 

19 
19 
19 
19 
19 

19 
19 
19 
18 
18 

18 
18 
18 
18 
17 

17 
17 
17 
17 
17 

17 
17 
17 
17 
16 

16 
16 
16 
16 
16 


16.7 
16.6 
16.5 

18.6 
17.4 

18.4 
19.6 
17.8 
17.2 
16.7 

16.6 

16.6 

16.6 

21 

17.1 

16.9 
17.1 
16.9 
16.8 
16.9 

17.4 
17.0 
17.0 
16.8 
16.1 

15.5 
15.3 
15.5 
15.3 
14.5 
14.4 

16 
16 
16 
16 
16 

16 
16 
16 
15 
15 

14 
14 
14 
14 
14 

14 
14 
14 
14 
14 

14 
14 
14 
14 
14 

15 
15 
14 

14 
14 
14 


15.6 
18.6 
16.8 
17.6 
17.5 

16.7 

16.3 

16.3 

92 

19.5 

16.8 
16.2 
15.4 
17 9 
16.0 

28 

""96"' 
80 
76 

80 
130 
300 
115 
125 
140 

14 
14 
14 
14 
14 

14 
14 
14 
14 
14 

14 
14 
14 
14 
14 

14 
14 
14 
16 
15 

14 
14 
14 
14 
14 

14 
14 
14 
14 
15 
14 


115 

80 
90 
90 
90 

90 
95 
90 
95 
100 

100 
100 
100 
100 
100 

100 
98 
98 
95 
95 

116 
100 
100 
100 
100 

112 
115 
110 
110 

14 

14 
14 
15 
15 

15 
15 
15 
15 
15 

15 
15 
15 
15 
15 

15 
15 
15 
15 
15 

15 

18 
17 
15 
29 

18 
16 
15 


120 
110 
110 
110 
125 

118 
110 

no 
no 
no 

115 
115 
115 
115 
115 

118 
118 
118 
118 
158 

180 
145 
140 
140 
130 

130 
130 
130 
130 
130 
130 

15 

15 
16 
16 

16 
16 
16 
16 
16 

16 
16 

17 
16 

16 
16 
15 
17 
18 

23 
23 

21 
22 
26 

27 
26 
25 
25 
25 
24 


130 
130 
130 
130 

125 

125 
125 
120 
120 
120 

120 
120 
120 
120 
120 

120 
120 
120 
117 
116 

116 
116 
114 
112 
108 

110 

no 

110 

no 

105 

22 
22 
23 
23 
23 

23 
23 
. 23 
22 
22 

22 
23 
22 
22 
22 

22 
23 

27 
28 
28 

29 
29 
29 
29 
30 

30 
30 
30 
30 
30 


105 
105 
105 
105 
105 

105 
105 
105 
105 
105 

105 
105 
105 
105 
102 

100 
98 
95 

100 
95 

95 
95 
92 
90 
90 

90 
90 
.90 

88 
85 
85 

30 
34 
30 
30 
29 

29 
29 
30 
30 
29 

29 
29 
29 
29 
29 

29 
29 
29 
29 
29 

29 
29 
29 
29 
28 

28 
28 
28 
28 
28 
28 


82 
80 
78 
72 
72 

72 
72 
72 
70 
68 

68 
62 
48 
42 
42 

42 
42 
42 
40 
40 

40 
37 
37 

38 

38 

38 
34 
38 
48 
38 

28 
28 
27 
28 
27 

27 
28 
28 
27 

27 

27 
27 
27 
26 
26 

26 
26 
25 
25 
25 

25 
25 
24 
■ 24 
23 

24 
23 
23 

24 
23 


37 
35 
34 

34 
34 

32 
32 
32 
32 
31 

30 
30 
32 
30 
30 

31 
30 
30 
30 
30 

29 
29 
28 
29 
29 

28 
28 
28 
28 
28 
28 

22 
22 
21 
21 
21 

21 
21 
20 
20 
20 

19 
19 
19 
19 

18 

17 
17 
17 
17 
16 

17 
19 

18 
18 
17 

29 
112 
26 
22 

22 
21 


27 
27 
27 
26 
26 

26 
26 
26 
26 
26 

26 
26 
26 
26 
26 

25 
24 
23 
24 
24 

24 
23 
23 
23 
32 

31 
30 
28 
28 
26 
25 

20 
20 
24 
20 

18 

18 
18 
18 
18 
18 

19 
18 
19 

18 

18 

17 
17 
17 
17 
17 

17 
17 
17 
16 
16 

16 
16 
16 
16 
15 
15 


26 
26 
28 


2 


3 


4 


25 


5 


24 


6 


24 


7 


24 


8 


23 


9 


23 


10 


23 


11 


22 


12 


23 


13 


22 


14 


22 


15 


21 


16 


21 


17 .. . 


23 


18 


23 


19 . . .. 


23 


20 


21 


21 


19.8 


22 


20 


23 


20 


24 


19.6 


25 


18.8 


26 


18.8 


27 


18.8 


28 


18.8 


29 


18.8 


30 


24 


31 




1916-17. 
1 


15 


2 


15 


3 


15 


4 


14 


5 . ... 


14 


6 


14 


7 


14 


8 


14 


9 


14 


10 


14 


11 


14 


12 


14 


13 


14 


14 


14 


15 


14 


16 


13 


17 


13 


18 


13 


19 


13 


20 


14 


21 


13 


22 


13 


23 


13 


24 


13 


25 


13 


26 


13 


2? 


13 


28 


13 


29 


13 


30 


13 


31 





SANTA ANA RIVEH BASIN. 



293 



Daily discharge, in second-feet, of Mill Creek at Forest Home, Calif., for 1903-1918- 

Continued. 



Day. 



Apr. May. Jtrne. 



July. 



Aug. 



Sept. 



7.. 

8.. 
9.. 
10.. 

11.. 
12.. 
13.. 
14.. 
15.. 



18.. 
19.. 
20.. 

21.. 
22.. 
23.. 
24.. 
25.. 



12.4 
12.4 
12.4 
12.2 
12.2 
12.2 
12,2 
12.2 
12.2 
12.3 
12.2 
12.2 

12.5 
12.3 
12.2 
12.3 
12.1 
12.1 
12.2 

i: 



29.. 
30.. 
31.. 



11.3 
11.2 
11.0 
11.0 
11.0 
11.0 
10.8 
10.8 
10.8 
10.8 
10.8 
10.8 
10.8 
10.8 
10.8 
10.8 
10.8 
10.8 
10.8 
10.6 
10.4 
10.4 
10.3 
10.4 
10.3 
10.4 
10.3 
10.2 
10.2 
10.1 
10.0 



10.0 
10.0 
10.0 
10.0 
9.9 
10.0 
9.6 
9.6 
9.6 
7.5 
9.3 
9.6 
9.8 
9.4 



9.1 
11.3 
9.1 
9.1 
10.5 
10.2 
9.2 
9.6 
9.6 
9.6 
9.5 



9.4 
9.4 
9.3 
9.2 
9.2 
9.1 
9.8 
9.2 
9.0 
9.1 
9.1 
9.1 
9.1 
9.1 
9.1 

9.1 

9.0 
8.0 
8.4 
9.7 
10.7 
27.0 



10.4 
10.3 
10.2 



10.5 
10.5 
10.7 
10.7 
10.7 
32.5 
2,200 
70 
13.3 

755 

320 

,750 

120 

110 
75 
60 
50 
45 



37 

37 

37.5 

37.5 

37.5 

37 
37 
37 
37 
37 

37 
37 
39 
40 



39 
39 

a 3,9 



40 

39 

38 
38 
38 
38 

37.5 
37.5 
37.5 
37 

37.7 

37.5 
37.2 
36.5 
38.5 
36.5 
36 5 



35 

38.5 

35 

35 

34.5 

34 

34 

34 

34 

34 

34 

32.5 
o32 

31.5 
f'31.5 

40 

39 

39 

38 

37 

35 

35.5 

35 

33.8 

33.8 

32 

30 

29.5 

28.2 

27 



26.5 
25.8 
29.5 
23.2 
30.9 
22.8 
23.2 
24.8 
29.5 
30 

27 

27.5 

27.8 

27.5 

26.5 

26.5 

26.2 

26 

25.5 

24.5 

24 

24 

24 

24 

24 

22.6 

23.1 

22.2 

21.6 

21.5 

21.2 



21.2 
21.2 

20.6 
20.6 
20.7 
20.6 
20.5 
121 
21.6 
21.8 

20.5 
20.4 
20.4 
J 20. 3 
20.2 

20.1 

20.1 

19.8 

19.4 

18.9 

18.3 

18.1 

18 

17.6 

17.9 

18.2 

18.6 

18.5 

25.9 

22 

17.8 



17.0 
15.7 
15.9 
22.3 
15.9 
16.2 
15.9 
16.0 
16.1 
15.8 
15.8 
16.1 
15.7 
15.7 
15.6 
15.4 
15.5 
15.5 
15.2 
14.2 
15.5 
15.9 
15.2 
15.6 
15.6 
15.2 
15.6 
15.4 
15.6 
15.2 



a Interpolated. ^ Estimated same as day before. 

Monthly discharge of Mill Creek at Forest Home, Calif., for 1903-1918. 



Discharge in second- 



Maxi- Mini- 
mum, mum. 



Run-off 
(total in 
acre- 
feet). 



Discharge in second- \ 




feet. 




Maxi- 


Mini- 


Mean, 


mum. 


mum. 




25 


14 


15.0 


24 


13 


14.0 


20 


13 


14.5 


60 


14 


27.8 


60 


40 


50.4 


65 


40 


43.4 


60 


29 


43.1 


35 


26 


30.4 


29 


28 


28.1 


28 


24 


26.8 


23 


20 


21.2 


24 


16 


17.9 


42 


16 


19.3 


27 


16 


21.1 


50 


22 


29.5 


60 


30 


39.8 


80 


50 


69. 


80 


45 


62.8 


54 


38 


43.5 


38 


30 


33.5 


30 


30 


30.0 


48 


22 


27.0 


45 


22 


22.8 


22 


18 


19.8 


18 


17 


17.8 


24 


14 


16.1 


22 


14 


16.6 


32 


16 


26.1 


40 


32 


34.6 



Run-off 
(total in 
acre- 
feet). 



1903. 
September 23-30. 

1903-4. 

October 

November 

December 

January 

February 

March 

April 1-2,4^30... 

May 

June.. 

July 

August 1-5,7-31. 
September 

1904-5. 

October 

November 1-14, 

16-30 

December 

January 

February 1-15, 

17-28 

March 1-11, 13-31, 

April 

May 1-14,18-31.. 

June 

July 

August 

September 

1905-6. 

October 

November 



19 
12 



50 
26 



15 
12 



9.5 

8.2 



31 

78 
54 



17 
21 



12 
11 
10 
9.0 



11 
9.0 



7.0 

7.4 
7.4 



18 

20 

36 

39 . 

24 

19 

14 

14 
15 



1.3.7 


842 


11.4 


678 


10.5 


646 


9.50 


584 


9.76 


561 


14.4 


885 


18.1 


1,040 


15. 7 


965 


12.7 


758 


10.2 


627 


10.6 


631 


9.07 


540 



7.98 
7.55 



13.0 
23.8 
29.0 
52.6 
44.6 
29.7 
21.5 
18.0 

15.6 
15.8 



459 
464 
497 



1,420 
1,730 
2,920 
2,650 
1,830 
1,320 
1,070 



1905-6. 

December 

January 

February 

March 1-15, 18-23 

28-31 

April 

May 1-27,30-31.. 

June 

July 

August 

September 

1906-7. 
October 1-5, 9-31 . 

November 

December 1-27, 

29-31 

January 

February 

March 1-19, 2.3-31. 
April 1-18,20-30. 
May 1-6,8-31.... 

Jime 

July 

August 

September 

1907-8. 

October. 

November 

December 

January 

February 

March 

Anril 



805 

1,320 
3,000 
2,500 
2,560 
1,870 
1,730 
1,590 



1, 180 
1,070 

1,150 
1,300 
1,640 
2,210 
3,970 
3,740 
2,590 
2,060 
1,840 
1,610 

1,400 
1,180 
1,090 
990 
955 
1,600 
2,060 



294 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Monthly discharge of Mill Creek at Forest Home, Calif ., for 1903-1918 — Continued. 



1907-8. 

May 

June 

July 

August 

September 1-8 
10-30 



19G8-9. 
October........ 

Noveniber 

December 

January 1-20, 

23-31.... 

Tebmary 

March 

April 

May 

June 

July... 

August 1-14, 

18-31 

September 

1909-10. 

October 

November 

December 1-8, 

■ 10-30 

January 4-31 

Februarj' 

March 

April.... 

May 

June 

July 

August 

September 

: 1910-11. 

October 

November. 

December 

J-aiiuary 1-9, 
11-28,30 

February 1-22, 
23-28 

March 1-7...... 

April 

May 26-31 . . 

June 1,3-30 

July 

i August 

September 

1911-12. 

October 

November. 

December ...... 

January 

February....... 

March 

April 

May..... 

June 

July 

August 

September 



The year . 

1912-13. 
October....... 

November 

December. . .. 

January 

February 

March 

April 

May..- 

Jime 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



40.0 
30.8 
20.0 
18.2 

14.1 

13.0 
11.5 
1L7 

16.0 
21.9 
27.3 
34.5 

45.7 
34.2 
26.9 

23.1 
19.5 



17.1 
16.3 

17.0 
51.5 
51.9 
50.6 
57.0 
53.9 
40.8 
35.5 
28.2 
2.3.3 



21.4 

25.8 



47.0 

58.7 



91.3 
74.9 
50.6 
34.6 

29.4 



30.0 
25.9 
24.0 
22.2 
20.1 
31.0 
34.4 
42.5 
37.7 
28.3 
21.5 
18.0 



21.8 
18.9 
16.8 
16.0 
17. 1 
20.9 
27.4 
25.5 
17.7 



Run-oS 
(total in 
acre- 
feet). 



2,460 
1,8.30 
1,230 
1,120 

811 



1,220 
1,680 
2,050 
2,810 
2,040 
1, 650 

1,280 
1,160 



1, 0,50 
970 

978 
2,860 
2,880 
3,110 
3,390 
3,310 
2,430 
2,180 
1,730 
1,390 



1,400 
1,360 
1,320 



2,520 
815 



1,090 
4,310 
3, 110 
2, 130 
1,750 



1,840 
1,540 
1,480 
1, 360 
1,160 
1,910 
2,050 
2,610 
2,240 
1,740 
1,320 
1,070 



20,300 



1,340 
1,120 
1,030 
984 
950 
1,290 
1,630 
1,570 
1,050 



1912-13. 

July 

September 

1913-14. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July... 

August 

September 

The year . . 

1914-15. 

October 

November. . . . . 
December . . . . . 

January ... 

February 

March 

April 

May. 

June 

July 

August 

September 



The year . 

1915-18. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July.... 

August , , 

September 

1916-17. 

October. 

November 

December 

January 

February 

March 

April 

May 

.Tune 

July 

August 

September. . . 



The year . . 

1917-18. 

October 

November. 

December 

January , 

February 

March 

April 

May 

June 

July 

August 

September 



The year . 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



58 
37 
28 



22 

19.5 

21 

33 
131 

48 

72 
152 
154 

87 

42 

29 



23 
21 



116 

180 
130 
105 

82 



9.6 
9.2 



22 
17.8 



15.8 

14.8 

14.4 

13.5 

17.8 

30 

40 

54 

84 

44 

28 

22 



13.5 



18.4 
16.8 
14.4 



110 

105 
85 



47 
19 



27 
30 



28 
112 



12.8 
15.0 
11.3 
11.3 
27.0 
2,200 



25.9 
22.3 



2,200 



11. 8 
11.3 
10.0 



10.5 

37 

35 

27 

21.2 



13.3 

10.1 



9.81 
9.77 
9.77 
17.4 
40.0 
50.8 
48.0 
55.4 
44.0 
32.1 
25.4 
19.9 



30.6 



17.2 
15.8 
15.1 
15. 4 
30.9 
34.1 
53.2 
89.1 
114 
63.2 
33.4 



20.6 
18.0 
16.9 



124 
119 



26.0 
22.0 



22.8 
17.5 
14.6 
14.1 
15.7 
19.0 
25.4 
29.1 
25.8 
22.8 
17.6 
13.6 



19.9 



10.2 
200 
38.8 
37.9 
34.1 
25.3 
20.0 
15.9 



35.9 



Note.— All montloly tables computed by United States Geological Survey. 



SANTA AIvA RIVER BASHST. 



295 



HIGHLANDS CANAL AT IHTAKE WEIK, NEAR MEKTONE, CALIF. 

Highlands or North Fork canal diverts water from Santa Ana Eiver 
at the mouth of the canyon, opposite the Mentone Power Co.'s 
power house. 

Discharge measurements of Highlands canal at intake vjcir, near Mentone, Calif., for 

1896-1904. 



Made by— 



Dis- 

charge. 


Date. 


Sec-feet, 


1901. 


8.50 


July 6 




Aug. 20 


11.91 
10.76 
12.40 


Oct. 8 
Dec. 5 
May 31 


17.03 
11. 37 
13.29 
9.85 
8.12 
6.95 


1902. 
May 31 
July 10 
Sept. 3 
Nov. 5 




1903. 


8.07 


Apr. 24 


11.78 


May 16 


7.70 


Aug. 31 


6.74 




10.30 


1904. 


13.14 


Jan. 29 


11.92 


May 14 


4.28 


28 




June 29 


7.48 
(o) 


Sept. 21 
Nov. 11 


5.61 





Made by- 



Dis- 
charge. 



1896. 
Nov.. 21 

1898. 
Jan. 8 
Mar. 9 
Apr. 12 
29 
June 12 
Sept. 8 
Oct. 18 
Nov. 9 
Dec. 8 

1899. 
Feb. 18 
Mar. 23 
May 6 

31 
June 15 
July 15 

27 
Aug. 24 

1900. 
Apr. 14 
July 13 
Oct. 2 



J. B. Lippincott 

J. B. Lippincott 

H. Crowe 

J. B. Lippincott 

do-..: 

do 

do 

F.H. Olmsted 

do 

do 

S. G. Bennett 

do 

do 

do 

do... 

do 

do.. , 

do , 

S, G, Bennett 

do. 

W. W. Coekins.jr-. 



. G. Bennett. 

...do 

...do 

...do 

...do 



S. G. Bennet.., 
do , 

W. B. Clapp.- 

S. G.Bennett. 



W. B. Clapp. 

do 

do 



W. B. Clapp.. 

do 

do 

do 

..-.do 

E. C. .r,a Rue. . 



See. -feet. 
13.28 
15.79 
14.30 
8-53 
7.90 



7.90 
11.50 

11.10 
10.02 



6 

18 
15. G 



10.7 
11.4 
12.0 
13.5 
16.4 
7.8 



n Water not going through weir basin; weir was being repaired. 

Dailif discharge, in second-feet, of Highlands canal at Sand Box weir, near Mentone, 
Calif., for 1901 and 1903-1904. 



Day. 



July. 



Aug. 



Sept. 



1901. 
1. . . 


12.7 


2 


11.7 




11.3 


4. . 


12. 1 




1L4 


6 


11.5 


7 


12.2 


8... 


12. 3 


9..-. . . 


11. 1 


10 


11. 9 


11 . . . 


12.7 


12 


12. 7 


13-. 


12 


14.. 


12. 


15 . - - . 


10 


16 


11.3 


17 


11 1 


18 


11. 1 


19 


11. 1 


20 


14. 6 


21 


14 6 


22 


14.0 


23 


13, 9 


24 


14 ] 


25 


14. 4 


26 


13 9 


27 


14 9 


28 ... . 


14 


29 


14.3 


30 


14 1 


31 





14.7 
14.2 
12.5 
12.0 
12.6 
13.9 
13.8 



14.6 
14.7 
15.3 

15.3 
14.7 
15.4 
12.9 
12.8 

12.3 
14.6 
15.3 
14.2 
14.2 
15.0 
14.6 
14.4 
15.1 
14.4 
14.2 



14.6 
13.6 



13.0 
12.4 
14.1 

15.8 
14.4 
14.5 
14.5 

15.4 
14.6 
1.5.3 
15.4 
16.0 

19.4 

'ii'o" 

13.1 
12.0 



6.0 
12.0 

17.5 

17.5 
17.5 
17.5 
17.5 
17.5 
17.5 



16.5 
16.5 
16.5 
16.5 
16.5 
15.4 
16.5 
15.8 
12.8 
16.2 

16.1 
16.1 
15.2 
15.4 
14.5 
15.4 
16.1 
15.8 
16.5 
16.4 
14.3 
15.4 
14.5 
14.6 
16.3 
16.3 
16.5 

ia5 

13.9 
16.3 



.16.3 
15.9 
14.4 
14.4 
14.3 

14.1 
13.8 
14.3 
14.5 
14.1 

14.3 
14.3 
13.4 
12.1 

14.3 
13.1 
13. 3 
15.0 
14.5 
14.2 

14.5 
12.0 
12.1 

14.3 
12.0 
12.1 
11.0 
9.0 
8.8 
11.2 
12.0 



8.2 
8.4 
10.5 
10.5 
9.5 

9.2 
10.3 
10.8 
10.0 
9.2 
9.5 
10.4 
9.5 
9.5 
7.7 

8.9 
7,9 
9.5 

n.i 

9.7 
9.2 
10.0 
8.2 
8.2 
9.2 



7,7 
8.2 
8.2 

10.0 

7.4 
7.4 
7.0 
7.4 
7.2 
6.7 
6.7 



7.0 
7.0 



7.2 

7.2 
7.2 
7.0 
7.0 
7.2 
7.2 



296 SUKFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



DoAly discharge, in second-feet, of Highlands canal at Sand Box weir, near Mentone, 
Calif ,forl901 and 1903-1904— Continued. 



Day. 



1903. 

1 

2 

3 

4 

5 

7 

8 

9 

10 

11 

12....... 

13 

14 

15 



May. 


June. 


July. 


Aug. 


Sept. 


7.9 


20.9 


17.6 


17.2 


16.3 


12.2 


20.9 


18.9 


16.3 


17.2 


12.2 


20.9 


17.6 


16.9 


15.3 


12.2 


20.9 


16.3 


17.2 


16.3 


12.2 


19.6 


16.3 


17.2 


16.3 


12.2 


19.6 


16.9 


17.2 


16.3 


13.4 


19.6 


16.9 


17.2 


16.3 


13.4 


19.6 


16.0 


17.2 


16.3 


13.4 


16.9 


16.0 


17.2 


16.3 


13.4 


14.4 


16.3 


16.3 


16.3 


13.4 


16.9 


16.3 


17.2 


16.3 


13.4 


16.9 


16.3 


16.3 


16.3 


13.4 


18.2 


16.3 


16.3 


16.3 


13.4 


18.2 


16.3 


16.3 


16.3 


13.4 


16.9 


16.3 


16.3 


16.3 



Day. 



May. June. July. Aug. Sept. 



1903. 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28....;.. 

29 

30 

31 



13.4 
13.4 
13.4 
13.4 
13.4 

13.4 
13.4 
13.4 
21.0 
21.0 

21.0 
21.0 
21.0 
21.0 
21.0 
21.0 



18.2 
17.6 
17.6 
17.6 
16.9 

16.9 
16.9 
16.9 
16.9 
16.9 

16.9 
16.9 
16.9 
16.9 
16.9 



16.9 
14.4 
14.4 
16.9 
16.9 

17.6 
16.9 
17.2 
17.2 
17.2 

17.2 
17.2 
17.2 
17.2 
16.9 
16.3 



17,2 
17.6 
17.2 
17.2 
17.2 

17.2 

17.2 
16.3 
17.2 
16.9 

16.9 
15.6 
15.6 
15.6 
15.6 
15.6 



Day. 



Apr. 



May. 



July. 



Aug. 



1903-4, 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17......... 

18 

19 

20 

21. 

22... 

23 

24. 

25 

26 

27 

28 

29 

30 

31.. 



13.6 
13.6 
11.0 
11.0 
11.0 

11.0 
11.0 
11.0 
11.0 
12.2 

12.2 
12.2 
12.2 
13.6 
13.6 

13,6 
13.6 
14.7 
14.7 
15.3 

15.3 
15.3 
15.3 
15.3 
15.3 

15.3 
15.3 
15.3 
15.3 
11.8 
11.8 



11.0 
11.0 
11.0 
11.0 
11.0 

11.0 
10.2 
11.0 
11.0 
10.2 

11.0 
10.2 
10.2 
10.2 
10.2 

10.2 



9.4 
9.4 



9.4 
9.4 
9.4 
9.4 



9.4 
9.4 
9.4 



11.0 

7.9 
7.9 



7.9 
7 9 
7.9 
7.9 
7.9 

7.9 
7.9 
7.9 



8.9 
8.9 



8.9 
8.9 



8.9 
8.9 
8.9 
8.9 






12.1 

12.1 
8.6 







8.6 
8.6 



16.0 
16.0 

16.0 
16.0 
16.0 
16.0 
16.0 

16.0 
14.4 
14.4 

14.4 
14.4 

14.4 
14.4 
14.4 
16.9 
16.9 

16.9 
16.9 
16.9 
16.9 
16.9 



13.2 
13.2 
13.2 
13.2 
13.2 

13.2 
13.2 
12.7 
12.7 
12.7 

12.7 
13.5 
13.5 
11.2 
11.0 

11.0 
11.0 
11.0 
10.7 
10.7 

10,7 
10.7 
11.5 
11.5 
11.5 

11.5 
12.4 
11.5 
13.2 
11.5 
11.5 



13.2 
13.2 
13.2 
13.2 
13.2 

13.2 
13.2 
14.1 
14.1 



14.1 
14.1 
14.1 
14,1 
14,1 

13.2 
13.2 
13.2 
13.2 
13.2 

13.2 
13.2 
13.2 
13.2 
13.2 

13.2 
13,2 
13.2 
13.2 
13.2 



13.2 
13.2 
15.3 
15.3 
15.0 

15.0 
15.0 
15.0 
15.0 
15.0 

15.0 
15.0 
15.0 
15.0 
15.0 

15.0 
15.0 
15.0 
15.0 
15.0 

15.0 
15.0 
15.0 
15.0 
15.0 

15.0 
14,1 
14.1 
14.1 
14.1 
14,1 



15.3 
15.3 
15.3 
15.3 



15.3 
15.3 
15.3 
15.3 
15.3 

15.3 
16.3 
15.3 
15.3 
15.3 

1.5.3 
16.6 
16.6 
16.6 
16.6 

16,6 
16.6 
16.6 
16.6 
16.6 

16.6 
15.6 
15.6 
15.6 
15.6 
15.6 



Day. 



Oct. 


Nov. 


Dec. j 

1 


16.0 


8.4 


8.4 


14.1 


8.4 


6.0 


14.1 


8.4 


6.0 


14.1 


8.4 


6.2 


14.1 


8.4 


6.2 


14.1 


8.4 


6.2 


14.1 


8.4 


6.2 


13.5 


8.4 


6.2 


14.1 


8.4 


6.2 


14.1 


8.4 


6.0 



Day. 



Day. 



Oct. 


Nov. 


14.1 


8.4 


14.1 


8.4 


14.1 


8.4 


14.1 


8.4 


14.1 


8.4 


13.5 


8.4 


13.5 


8.4 


13.5 


8.4 


12.2 


8.4 


10.0 


8.4 


9.6 





1904-5, 

1 

2. 

3 

4 

5 

6 

7 

8 

9 

10 



1904-5. 

11 

12 

13 

14 

15 

16 

17 

18 

19 



13.8 
13.8 
13.5 
13.5 
13.5 

14.1 
14.1 
14.1 
14.1 
14.1 



6.0 
6.0 
6.0 
6.2 



6.4 
5.5 



1904-5. 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



6.0 
6.0 
5.8 
6,0 
6.0 

6.0 
6.0 
6.0 
5.8 
5.8 
5.8 



SANTA AKA RIVER BASIN". 



297 



REDLAK^DS CANAL NEAR MENTONE CALIF. 

Redlands or South Fork canal diverts water from Santa Ana River 
at the mouth of the canyon opposite the Mentone Power Co.'s 
power house. 

Discharge measurements of Redlands or South Fork canal at Sand Box iveir, near Mentone, 
Calif., for 1896-1904. 



July 29 
Nov. 21 

1S98. 
Jan. 8 
Mar. 9 
Apr. 12 
29 
June 12 
July 23 
Sept. 8 
Oct. 18 
Nov. 9 
Dec. 8 

1899. 
Jan. 12 
Feb. 18 
Mar. 23 
May 6 

31 
June 15 

27 
July 15 
Aug. 24 

1900. 
Apr. 14 



Made by— > 



J. H. Quinton — 
J. B. Lippincott. 



J. B. Lippincott. 

H. Crowe ^ - - - 

J. B. Lippincott. 

do 

do 



do 

F. H. Olmsted. 

do..... 

....do , 



. G. Bennett., 

...do , 

...do 

...do 

...do 

...do 

...do 

...do , 

...do 



Dis- 
charge. 



Sec-feet. 
40.62 
12.00 



21,32 
22.22 
16.70 
13.00 
18.40 
15.00 
15.40 
7.26 
10.20 
12.00 



15. 10 
15.70 
17. 00 
15.49 
14.67 

7.76 
12.40 
12.70 

5.71 



1900. 
July 13 
Oct. 2 

1901. 

Mar. 30 

May 31 

July 6 

Aug. 20 

Oct. 8 

Dec. 5 

1902. 
Mav 31 
July 10 
Sept. 3 
Nov. 5 

1903. 
Apr. 24 
May 16 
Aug. 31 

1904. 
Jan. 29 
May 14 
28 
June 29 
Nov. 11 



S. G. Bennett 

W. W. Cockins, jr.. 



. G. Bennett.. 

...do 

...do 

...do 

...do 

...do 



S. G. Beimett.. 
do 

W. B. Clapp... 
S. G. Bcnnott.. 



W. B. Clapp. 

do 

....do 



W. B. Clapp.. 

do 

do 

do 

E.C. La Rue. 



Sec-feet. 
10.65 
6.25 



30.00 
19.60 
19.91 
16.75 
24.10 
14.27 



19.60 
10.06 
14.60 
7.55 



9.6 
29.0 
28.0 



12.3 
23.8 
26.0 
22.0 
9.6 



Daily discharge, in second-feet, of Redlands canal at Sand Box iveir, near Mentone, Calif, 
for 1901 and 1903-4. 



Day. 



1901. 
1 


20.0 


2 


24.6 


3 


24.0 


4 


22.0 


5 


23.3 


6 


22.7 


7 


20.8 


8 


19.5 


9 


20.6 


10 


2L4 


11 


20.7 


12 . 


17 i 


13 


17.7 


14 


18.3 


15 


18.9 


16 . ... 


20 1 


17 


20.7 


18 


27.3 


19 


28.6 


20 


24.6 


21 


22.6 


22 


27.3 


23. 


28 6 


24 


26.6 


25 


23.3 


26 


23.3 


27...* 


22 6 


23 


20.7 


29 


18 3 


30 


18.9 


31 





June. July. Aug. Sept. Oct. Nov 



22.7 
18.9 
18.9 
20.7 
23.7 

22.8 
20.7 
18.9 
18.3 
19.5 

20.7 
19.5 
18.9 
18.9 
19.5 

19.5 
19.5 
18.3 
21.4 
22.6 

22.6 
23.3 
24.6 
23.9 
20.7 
20.7 
21.4 
20.7 
18.9 
22.6 
24.6 



23.9 
3L4 



23.3 
22.0 

27.9 
25.2 
20.7 
22.0 
17.1 

18.9 
14.8 
25. 2 
23.3 
24.6 
27.4 
.0 
.0 
11.6 
9.3 

34.3 
1L6 
28.0 
28.0 
30.0 

28.0 
32.9 
28.6 
31.4 
34.3 
36.4 



37.3 
30,0 
29.3 
30.2 
27.3 
29.3 
23.3 
25.3 
23.3 
21.4 

2.5.9 
27.3 
28.0 
28.0 
27.3 
27.3 
27.3 
30.0 
30.0 
28.6 

30.0 
34.3 
28.6 
30.0 
27.6 

24,6 
24.6 
28.6 
27.9 
30.0 



28.6 
32.9 
30.0 
30.0 
28.6 
28.0 
26.6 
28.0 
26.6 
25.3 
2L4 
23.3 
26.6 
29.5 
30,0 

30.0 
31.4 
30.0 
30.0 
28.0 
29.4 
27.0 
29.4 
25.8 
26.0 
28.0 
17.0 
12.0 
9.0 
9.0 
30.0 



22.0 
24.0 
17.1 
15.3 
14.0 

16.6 
16.9 
14.1 
13.8 
18.6 

16.1 
13.0 
12.5 
11.4 
10.9 
12.0 
13.8 
14.1 
14.1 
17.8 
16.4 
14.9 
11.2 
1L2 
12.2 

12.0 
12.0 
14.4 
14.4 
13.6 



Dec. 



14.9 
14.9 
14.4 
13.8 
13.8 
12.0 
16.4 
16.4 
15.2 
14.7 
15.2 
16.6 
16.4 
12.8 
14.1 

15.8 
15.8 
15.2 
14.1 
14.1 

14.9 
14.9 
16.4 
16.6 
16.4 

15.8 
15.8 
15.2 
14.9 
13.8 
13.8 



298 SUEFACE WATER OE PACIFIC SLOPEj. SOUTHERN CALIFORE'lA. 



Daily discharge, in second-feet, of Redlmids canal at Sand Box iveir, near Mentone, Calif .^ 
for 1901 and 1903-4— Gontm\xed. 



Day. 



12.. 
13.. 



May. June. Jialy. Aug. Sept. 



15.9 
17.1 
21.7 
10.6 
23.7 

12.1 
47.1 
54.3 
24.6 
22.0 

30.0 
30.0 
30.0 
32.9 
32.9 



36.5 
36.5 
36.5 

36.5 
36.5 



35.1 
38.1 
38.1 



29.8 
29.8 
33.8 
31.2 
33.8 

31.2 
31.2 
28.4 
33.8 
33.8 

38.1 
35.1 
33.8 
33.8 
31.2 



39.5 
39.5 
39.5 



33.8 
33.2 
33.2 
35.1 
3.5.8 



29.8 
27.2 



28.4 
28.4 
33.8 



35.1 
35.1 



Day. 



1903. 

16 

17 

18 

19 

20 

21 

22 

23 

24.. 

25 

26 

27 

28 

29 

30 

31 



May. June. July. Xw'i.. Sept, 



36.5 

36.5 



35.5 
33.8 
33.8 
33.8 
31.2 

31.2 
31.2 



31.2 
3.5.1 
38.1 
37.3 
37.3 

34.5 
33.8 
33.8 
33.8 
36.5 

36.5 
36.5 
36.5 
36.5 
39.5 
39.5 



Day. 



Oct. 


Nov. 


Dec. 


27.2 


33.8 


17.1 


26. 6 


20.4 


17.7 


14.4 


15.4 


17.7 


22.8 


18.2 


17.7 


21.0 


14.4 


17.7 


19.8 


14.4 


17.7 


22.3 


16.6 


17.7 


24.4 


16.6 


17.7 


27.2 


18.7 


17.7 


25.4 


17.7 


18.2 


24.8 


17.1 


16.6 


24. 8 


17.1 


14.4 


25. 4 


17.1 


15.4 


27. 8 


17.1 


15.4 


30.6 


17.1 


14.4 


29.2 


17.7 


16.6 


30. 6 


17.7 


16.6 


31.9 


18.2 


15.4 


27.8 


18.2 


15.4 


30.6 


18.2 


15.4 


28.4 


18.2 


15.4 


29. 8 


16.6 


15.4 


33.2 


16.6 


15.4 


32. 5 


16.6 


16.6 


32.5 


16.6 


16.6 


3;i2 


16,6 


16.6 


33. 8 


16.6 


16.6 


33. 2 


16.6 


10.6 


31.9 


16.6 


16.6 


36.5 


17.1 


16.6 


36.5 




16,6 



Mar. 


Apr. 


May. 


18.7 


14.4 


31.2 


23.5 


14.4 


31.2 


22.3 


16.6 


31.2 


21.0 


16.6 


31.2 


17.1 


18.7 


28.4 


17.1 


18.7 


26.0 


18.7 


18.7 


26.0 


18.7 


18.7 


26.0 


18.7 


21.0 


26.0 


17.7 


18.7 


26.0 


14.4 


18.7 


21.0 


10.3 


23.5 


21.0 


17.7 


23.5 


18.7 


17.7 


23.5 


23.5 


18.2 


23.5 


23.5 


17.7 


23.5 


23.5 


16.6 


23.5 


23.5 


14.4 


23.5 


26.0 


16.6 


23.5 


26.0 


14.4 


16.6 


26.0 


18.7 


18.7 


27.2 


18.7 


26.0 


27.2 


.0 


26.0 


24.2 


.0 


28.4 


24.8 


.0 


28.4 


24.8 


.0 


31.2 


29.8 


12.3 


31.2 


27.8 


14.4 


31.2 


27.2 


6.7 


31.2 


26.0 


14.4 


31.2 


24.8 


14.4 





24.8 



Fuly. 


Aug. 


24.2 


25.4 


24. 2 


26.0 


24.8 


25.4 


27.2 


27.2 


27.2 


27.8 


29.8 


29.2 


26. 


28.4 


22. 3 


24.8 


22. a 


22. a 


26.0 


22.3 


26.0 


22.3 


26.0 


26.0 


26.0 


.0 


27.8 


14.4 


26.9 


14.4 


29.2 


23.5 


29.8 


27.2 


29.8 


26.0 


27.8 


27.2 


25.4 


26.6 


24.8 


35.5 


24.8 


33.8 


24.8 


26.0 


21.6 


26.0 


18.7 


24.8 


24.8 


27.2 


25.4 


sae 


25. 4 


26.0 


19.8 


24 8 


21.6 


26.6 


2.3.5 


29.8 



17.. 
18.. 
19.. 
20.. 

21.. 
22.. 
23.. 
24.. 
25.. 



29.. 
30.. 
31=. 



16.6 
16.6 
16.6 
16.6 

14.4 

13.3 
13.3 
15.4 
15.4 

15.4 

14.4 
14.9 
16.0 
15,4 
15.4 

15.4 

1.5. 4 
15.4 
14.4 
14.4 

13.8 S 
13.3 1 
13.3 1 

13.3 i 
13.3 

14.4 

14.4 j 
14.4 
14.4 ! 
13.3 ! 
13.3 ! 



14.4 
14.4 
15.4 
15.4 
18.7 

18.7 
16.6 
17.7 
17.4 
17.7 

17.7 
17.1 
17,1 
17.1 

17.7 

17.7 
16.0 
16.0 
19.3 
19.3 

19.3 
17.7 
17.7 
17.1 
17.1 

16.6 
17.7 
15.4 
15.4 



24.2 
■ 24. 2 

27.8 
27.8 
29.8 



31.2 
30.6 
28.4 



22.3 
19.8 

17.7 
17.7 
22.3 

24.8 
24.8 
24.8 
25.4 



27.2 
27.2 
26.6 
26.6 
26.6 

26.0 
24.2 
23.5 
23.5 
24.2 



Day. 



Oct. Nov. Dec, 



12.3 
10.3 
10.8 



12.3 
11.3 
10.8 



9.6 
11.8 
14.0 
13.8 
12.5 

12.3 
12.3 
13.8 
12.8 
13.1 



Day. 



1904. 

11 

12 

13 

14....... 

15 

16....... 

17 

18 

i9'. ,. 

20....... 



18.7 
38.1 
29.8 
24,8 
24.8 

23.5 
24.8 
31.9 
31.2 
33.2 



10.1 
10.3 
10.8 
10.8 
10.8 

11.3 
10.1 
10.8 
10.3 

8.7 



13.6 
12.5 
11.1 
12.3 
13.3 

13.3 
15.1 
12.5 
14.0 
13.1 



Day. 



1904. 

21 

22....... 

23 

24 

25 

26 

27 

28. 

29....... 

30 

31 



33.8 
35.1 
29.8 
33.2 
28.4 

24.8 
23.5 
28.4 
23.5 
33.2 
11.3 



8.9 
10.1 
10.1 
10.1 

9.2 

8.7 
9.4 



12.5 
12.5 
12.8 
12.3 
12.8 

12.8 
12.0 
11.8 
►13.6 
12.8 
15.7 



SA:NrTA AKA EIVER BASIIS". 



290 



WATERMAST CAHYOH CHEEK HEAE, SA^ BEBITAKDIHO, CAMF. 

Location.— In SW. i SW. i sec. 2, T. 1 N., R. 4 W., above old toll bridge at moutli 
of canyon, abont 6 miles north of San Bernardino, San Beniaidino County. 

Drainage area. — -1.55 square miles (measured on topographic map). 

Elevation. — ^About 2,100 feet above sea level. 

Records available. — November 2, 1911, to October 30, 1914. 

GrA.GB, — Vertical staff fastened to an alder tree on left bank about 300 feet above 
bridge. 

I>iscHARGE MEASUREMENTS. — Made fi'om foot plank 15 feet below gage or hj wading. 

Channel and control. — Boulders and gravel; shifts during high water. (See 
PI. XYI, A, p. 451). 

Extreme of discharge, — 1912-1914: Maximum stage occurred durlog January or 
February, 1914; stage and discharge unknown; no flow September 15 to 17, 1913. 

Accuracy. — Stage-discharge relation not permanent. Rating cunres well defined 
except for high stages. Gage read to hundredths once daily. Daily discharge 
ascertained by applying gage height to rating table or for days on which gage 
was not rea-d, estimated by comparison with record of flow on De^il Canyon 
Creek. Records for 1^11 and 1912, good* for other periods, fair. 

Discharge measurements of Waterman Canyon Creek near San Beimardirao, Calif., 

for 1911-1915: 



Gage 
height. 


Dis- 
charge. 


Date. 


FeeL 


SeC'ft. 


1913. 


1.62 


L8 


July 11 

Oct. 6 

8 


1.72 


2.1 




L70 


2.1 


1914. 


L65 


2.1 


Jan. 13 


L62 


1.8 


14 


L94 


8.2 


16 


L88 


4.5 


16 


2,01 


9.2 


Feb. 6 


1.78 


2.8 


27 


1.6? 


LO 


Mar. 11 


L64 


1.0 


29 


L64 


LO 


Apr. 16 


L66 


.9 


" 30 


1, 81 


1.7 


Maj' 1 
8 
16 






1. SI 


L4 


June 26 


L83 


2.8 


Aug. 13 


L82 


2.5 


Sept. 21 


2.01 


4.8 




L89 


2.0 


1&15. 


LS5 


2.0 


Apr. 14 


L74 


1.5 





Made by- 



Gage 
height. 



Dis- 
charge. 



1911. 

Nov. 2 

1912. 

Jan. 10 

12 

30 

Feb. 18 

Mar. 9 

19 

Apr. 19 

May 28 

Amg. 3 

28 

28 

Oct. 22 

Dec. 10 

1913. 
Jan. 14 
Feb. 10 

11 
Mar. 4 
Apr. 4 

23 
May 30 



F.C. Ebert. 

do. 

....do....... 

....do.. 

....do....... 

.do 



...do.. 

...do.. 

..do.. 



H. D. McGlaslian. 
F.C. Ebert....... 

do...... 

.....do... 



F. C. Ebert 

.....do. 

do...... 

do 

do 

H. D. McGlashau 
F.C. Ebert 



F.C. Ebert. 

do, 

do. 



F.C, Ebert 

....do 

....do. 

do... 

-...do 

-...do 

.^..do- 

.li. D. McGlashan. 

F.C. Ebert 

....do.... 

....do 

....do 



..ao. 

..do 

..do..... 
..do 



Sec. -ft. 
1. 63 0. 3 

1.63 .3 

L72 I .5 



LI 
L2 
11 

9.5 

10 

27 

14 
9.5 
7.6 

14 

13 
8.4 
8.3 
3.4 



300 SUEFACE WATER OF PACIFIC SLOPE^ SOUTHERN CALIFORNIA. 



Daily discharge, in second-feet, of Waterman Canyon Creel near San Bernardino, Calif., 

for 1911-1914. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1 
1911-12. 

1 ... !... . 


1.7 
1.7 
1.8 
1.8 
2.0 

1.8 
1.9 
2,0 
2.0 
2.0 

2.4 
2.1 
2.1 
2.1 
2.1 

2.4 
2.5 
2.6 
2.6 
2.5 
2.6 
2.6 
2.6 
2.6 
2.6 

2.6 
2.6 
2.6 

2.8 
2.8 


2.8 
2.9 
2.9 
2.9 
2.5 

2.5 
3.4 
3.1 
2.9 
2.9 
2.5 
2.3 
2.3 
2.4 
2.4 
2.3 
2.9 
2.9 
2.6 
2.6 
2.6 
2.8 
2.9 
2.8 
2.8 

2.8 
2.8 
3.1 
3.1 
3.4 
3.1 


2.9 
2.7 
2.7 
2.8 

2.8 

2.8 
2.8 

2.8 
2.8 
2.8 

2.6 
2.4 
2.2 
2.2 
2.2 

2.2 
2.1 
2.1 
2.1 
2.1 

2.1 
2.1 
2.0 
2.0 
2.1 

2.1 
2.1 
2.1 
2.0 
2.0 
2.0 


1.9 
2.0 
2.1 
2.2 
2.1 

2.1 
2.1 
2.1 
2.1 

2.0 

2.0 
2.0 
2.1 
2.1 
2.1 

2.1 
2.1 

1.8 
1.8 
1.9 

1.7 
1.7 

1.7 

1.8 
1.8 

1.8 
1.8 
1.8 
1.6 


2.0 
1.8 
1.8 
2,5 

■■"8:2' 

57 

30 

47 

22 

18 

14 

12 
8.8 
7.8 
5.9 
6.8 

5.9 
6.2 
5.2 
5.0 

7.8 

7,8 
8.2 
6.5 
5.9 
6.5 
6.4 


6.2 
5,9 
5,5 
5.2 
5.2 
5.2 
5.2 
5.5 
20 
10.0 
24 
16.7 
13.4 
13.4 
13.4 
12.4 
11.4 
11.0 
9.5 
8.2 

7.8 
7.2 
6.8 
6.5 
6.5 
6.2 
6.5 
5.9 
5.2 
6.0 


5.0 

4,7 
4.5 
4.3 
4.0 
4.5 
4.5 
4.7 
4.7 
4.5 
4.3 
4.3 
4.0 
,4.0 
4.0 
3.8 
3.8 
3.8 
3.8 
3.8 

3.8 
3.8 
3.8 
3.8 
3.6 

3.6 
3.6 
3.1 
2.9 
2.9 
2.9 


2.9' 
2.9 
2.9 
2.9 
2.9 
2.9 
2.9 
2.9 
2.9 
2.9 
2.9 
2.9 
2.9 
2.8 
2.8 
2.4 
2.2 
2.2 
2.4 
2.2 

2.6 
2.9 
2.9 
2.6 
2.6 
2.8 
2.8. 
2.8 
2.9 
2.6 


2.6 
2.6 
2.3 
2.3 
2.4 
2.4 
2.2 
2.2 
2.2 
2.0 
2.0 
1.8 
1.8 
1.8 
1.7 
2.0 
2.0 
2.2 
2.0 
2.0 

2.0 
2.2 
2.2 
2.2 
2.2 

2.0 
2.0 
2.0 
2.0 
2.2 
2.2 


2.2 
2.0 
2.0 
2.0 
1.2 

1.1 
1.2 
1.2 
1.1 
1.0 

1.0 
.9 
.9 
.9 
1.0 
1.1 
1.2 
1.2 
1.1 
1.0 

1,0 
1,0 
1.0 
1.0 
1.0 
,9 
1.0 
1.0 
1.3 
1.2 
1.3 


1.3 
1.2 
1 2 


2 1 


3 


4 


1 2 


5 


1 3 


6 i 


1 3 


7 


1,3 


8 




1,3 


9 




1 1 


10 




1,2 


11 




1.1 


12 




.9 


13 




.9 


14 




1.0 


15 




1,1 


16 




1.3 


17 




1.2 


IS 




1.1 


19 




1.1 


20 




1.1 


21 




1.0 


22 




1.0 


23 .. . 




1,0 


24 




1,3 


25 




.9 


28 




.8 


27 




.9 


28 .. 




.9 


29 




1.2 


30 ... .. 




1.3 


31 .. 






1 







Note.— Daily discharge determined from a fairly well defined rating curve applicable Nov. 2, 1911, to 
Mar, 4, 1912, and Mar. 19 to Sept. 30, 1912. Indirect method for shifting channels used Mar; 9-18, 1912. No 
estimates have been attempted for the flood period Mar. 5-8, 1912. Discharge value for Mar. 31, 1912, in- 
terpolated. 



1912-13, 

1 

2 

3 

5 

6 

7 

8 

9 

10 , 

11 

12 , 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



2 

1.5 
2 
1.5 



1.0 
1.0 

2 



1.5 

2 

2 

1.5 

2 

2 

1.5 

1.5 

2 

1.5 



1.5 
1.5 
1.5 
1.5 
2 

2 

2 

2 

2.5 

2.5 

2 

2 

2 

1.5 

2 

2 
2 
2 
2 

2.5 

2 

2 

1.0 

1.5 

1.5 

2 

1.5 

1.5 

1.5 

1.5 

1.5 



1.5 
2 



2.5 
2 



2.5 
2.5 
3.5 

2.5 

2 

1.5 

1.5 

3 

2.5 
2 

1.5 
1.5 



4 

3 

2.5 

2.5 

3 

2.5 

2 

2 

2 

2 

2.5 

2.5 

2 

3 

3.5 
25 
43 
12 



5 
5 
5 

4.5 
5 

A 

3.5 
3 



3 

2.5 

2.5 

2.5 

3 

2.5 

3.5 

2.5 

3 

4 

3.5 

3 

2.5 

2.5 

2.5 

2 

2.5 

2.5 



2.5 
2.5 
2.5 
2.5 
2 

2.5 

2 

2 

2 

1.5 

2 

2 

1.5 

2 

1.5 

2 

2 

2 

2.5 

2.5 

2.5 

2.6 

2 

2 

1.5 

2 

1 

1.5 

1.5 



1.0 
1.5 
1.5 
1.5 



1 
1 
1.5 

1.5 

1.5 

1 

1.5 

1 

1.0 

1.5 
1 

,7 



1.5 
1.5 



2.0 

2 

2 

2 

1.5 

1.6 

2 

1 

2 

1.5 



1 

1.5 
.9 
1.5 
2 

2 
2 

1.5 
1.5 

1.5 



1.5 
1.5 



1.5 
1.5 
1 



1 

1.5 
1.5 
.9 
,9 
1,5 



2 
2.5 



3.0 
1.5 
3 

1.5 
.2 

.1 
1 

1,5 
1.5 
1 

1 

.7 
1 



.0 
.0 



,2 

1 

1.5 
1.5 



Note. — Daily discharge determined from fairly well defined rating curves applicable as follov/s: Oct. I 
to 3, 1912 same as for Mar. 19 to Sept. 30, 1912; Oct. 4 to 21, 1912, and Feb. 26 to Aprill9, 1913; Nov. 12, 
1912, to Feb. 8, 1913, and Apr. 20 to May 25, 1913; Feb. 9 to 25, 1913, and May 26 to Sept. 30, 1913. Dis- 
charge estimated Oct. 22 to Nov. 9, 1912, because of uncertainty in gage-height record; that tor other periods 
for which record is not given estimated by comparison with record of Devil Canyon Creek near San Ber- 
nardino. 



SANTA AN-A RIVEE BASIN". 



301 



Daily discharge, in second-feet, of Waterman Canyon Creek near San Bernardino, Calif., 
for 1911-1914— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan, 


Feb. 


Mar. 


Apr, 


May. 


June. 


July. 


Aug, 


Sept. 


Oct. 


1913-14. 
1... 


0.8 
1.0 
1.2 

.4 
.3 

1.1 
1.2 

.5 
2.0 

.3 

.4 
.3 
.4 
1.2 
.3 

.3 
.2 
.2 
.6 
.5 

.7 
.3 
.3 
.2 
.6 

.5 
.3 

.4 
.5 
.8 
.5 


0.6 
2.9 
1.1 
1.2 

.8 

.5 

.8 
.8 
.6 
.5 

.8 
2.2 
2.0 
1.4 
1.2 

1.5 
1.4 
1.2 

4.8 
3.4 

2.2 
1.9 
1.6 
1.3 
1.6 

1.6 
1.4 
i.O 
1.2 
1.3 


1.4 
1.2 
1.2 
1.3 
1.5 

1.3 
1.3 
1.5 
1.1 
1.5 

1.5 

i.e 

1.6 
1.8 
1.6 

1.8 
1.6 
1.9 
2.0 
1.9 

2.0 
4.4 
3.0 
2.9 
3.0 

2.5 
2.9 
2.2 
2.2 
3.4 
3.6 


2.7 
2.4 
2.1 
3.6 
1.9 

2.0 
1.9 
1.8 
1.9 
1.9 

2.0 
1.9 
1.2 
1.1 
12 

5.5 
7.5 

54 

34 

24 

18 
17 
15 
17 

46 

150 
75 
40 
30 
25 
20 


20 
15 
14 
13 
12 

11 
10 
10 
9 

8.5 

8 
8 

6.5 
7.5 

7 

7 

7.5 
12 
15 
125 

175 
100 

60 

45 

37 

92 
25 
30 


30 
28 
23 
22 
23 

24 
25 
19 
17 

17 

17 
13 
14 
12 
12 

11 
10 
9.5 
11 
10 

10 
9.5 
9.5 
9.5 
9 

9.5 

9.5 
11 

9.5 
11 

9.5 


9 
9 
8 

8.5 
11 

10 

10 
9 

8.5 
9.5 

9.5 

9 

8 

8 

7.5 

7.5 

7.5 

7 

7.5 

6.5 

9 
8 
10 

7.5 
8 

7 

7.5 
28 
38 
13 


12 
10 
12 
10 

9.5 

I 

9 

7.5 

7.5 

8 
7.5 

7 
8 
7.5 

8.5 

7 

7 

7.5 

6.5 

6.5 

7 

? 

7 

7 
7 
7.5 

I 

6 


6 
7 

6.5 
6 

7 

6.5 

9 

8.5 

9 

6 

6 

6.5 

5.5 

5.5 

5 

5.5 
6 

5.5 
5.5 

6 

5 

5 

5.5 

4.6 

5 

3.5 
3.1 
3.9 
4.6 
4.4 


4.2 
4.6 
3.1 

3.5 
3.9 

3.9 
3.5 
3.5 
2.9 
3.3 

3.3 
3.1 
3.9 
4.6 
3.1 

3.5 
3.9 
2.9 
3.5 

2.9 

3.3 
4.4 
4.0 
3.5 
3.1 

2.6 
3.9 
2.8 
3.3 
3.5 
3.5 


3.5 
2.1 
3.3 
2.9 
2.1 

2.3 
3.1 
1.5 
1.7 
2.1 

1.5 
1.3 
1.3 
2.3 
1.8 

2.3 
1.3 
2.3 

.8 
1.7 

2.1 
3.7 
1.2 
2.1 
1.2 

.9 
2.3 
2.1 
1.3 
2.3 
1.8 


2.0 
2.3 
2.1 
1.7 
1.3 

1.3 
1.8 
2.0 
1.8 
,8 

1.5 

1.7 
1.3 
.8 
2.0 

2.1 
1.7 
2.3 
2.5 
1.3 

2.1 
2.3 
2.1 
1.3 
1.2 

1.8 
1.6 
1.3 
2.1 
2.0 


1 7 


2 


7 


3 


3.5 


4 


2 8 


5 


3.1 


6 


2.5 


7... . 


2.8 


8 


2.8 


9 


1.8 


10 


2.1 


11 


2.3 


12 


1.8 


13 


1.3 


14 ...... 


1.2 


15... 


1.3 


16 .... 


1.4 


17 


2.6 


18 


1.1 


19 


2.8 


20 


2.9 


21 


4.4 


22. . . 


2.8 


23 


2.9 


24.. . .. 


3.1 


25 


2.8 


26 


2.6 


27 


2.0 


28. 


1.8 


29 


2.8 


30 


3.1 


31 











Monthly discharge of Waterman Canyon Creeh near San Bernardino, Calif., for 1911-1914. 



1911-12. 

November 

December 

January 

February 

March (27 days) 

April 

May 

June , 

July 

August 

September 

1912-13. 

October. , 

November , 

December 

January , 

February , 

March 

April 

May 

June 

July 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



2.i 
3.4 
2.9 
2.2 

57 

24 
5.0 
2.9 
2.6 
2.2 

1.; 



2.5 
2.5 
3.5 
43 
7 

2.5 
2 
2 
1.5 



1.7 
2.3 
2.0 
1.6 
1.8 
5.0 
2.1 
2.2 
1.7 



1.5 
.6 

1 

2 

1 

.5 
.8 
.3 



2.28 
2.78 
2.35 
1.94 
11,7 
9.03 
3.96 
2.74 
2.12 
1.19 
1.12 



1.77 
1.47 
1.84 
1.62 
5.34 
3.50 



1.48 
1.05 



Run-off 
(total in 
acre- 
feet). 



136 

171 

144 

112 

627 

537 

243 

163 

130 
73.2 
66.6 



109 
87 
113 
100 
297 
215 
118 
77 



1912-13. 

August 

September 

The year 

1913-14. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year 

1914. 
October 1 to 30.. 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



2.0 
4.8 
4.4 
150 



30 



4.6 
3.7 
2.5 



0.1 




1.1 
6.5 



3.1 
2.6 



.2 

.7 



0.97 
1.01 



1.49 
2.02 
19.9 
31.8 
14.7 
10.2 
7.90 
5.77 
3.52 
2.01 
1.74 

8.32 



Run-off 
(total 

in acre- 
feet). 



33 
89 
124 
1,220 
1,770 
904 
607 
485 
343 
216 
12i 
104 



302 SUREACE WATER OE PACIFIC SLOPE, SOUTHERN CALIFORIsriA. 
DEVLL CAIIYOM" CBSEK 2JEAH. SAIT BERHABDINO,, CALIF. 

Location. — In SE. {: NE. I sec. 6, T. 1 N"., R. 4 W., in Angeles National Forest, at 
mouth of canyon, 200 feet below ford, and 7 miles northwest of San Ber- 
nardino, San Bernardino County. 

Dbainagb AifEA. — 6.16 square miles (measured on topographic map). 

Elevation. — ^About 1,800 feet above sea level. 

Records available. — November 1, 1911, to September 30, 1912, and October 1, 
1913, to September 30, 1914. (Discharge measurements only for year 1912-13.) 

Gage. — Vertical staff fastened to alder tree on left bank about 200 feet below ford; 
weii* gage was a vertical staff in pool directly above weir, 500 feet above original 
staff. 

Disci-iARGE MEASUREMENTS.— Made from foot plank about 100 feet below gage or 
by wading. 

Channel and cgnthol. — Boulders and gravel; somewhat shifting during high 
stages. 

Extremes of discharge. — 1912-1914: Maximimi stage recorded, 4.31 feet at 8 
a. m. January 26, 1914 (discharge, 204 second-feet); minimum stage recorded, 
1.28 feet August 21 and 22, 1912 (discharge, 0.08 second-foot). 

Diversions.— Severance canal, which has its intake on left bank at weir 500 feet 
above original gage, occasionally diverts a small amount of water for irrigation. 
This diversion, whenever reported, has been combined with discharge of 
creek to give total run-off from drainage area. 

Accuracy. — Stage-discharge relation not permanent. Eating curves fairly well 
defined. G-age read to hundi^edths usually twice daily except for periods 
when no observations were made. Daily discharge ascertained by applying 
mean daily gage height to rating table discharge. August 28 to September 30, 
1912, and (October 1, 1913, to January 24,^ 1914, determined by means of a 30- 
inch Cippoletti weir; discharge for days when gage was not read, estimated by 
comparison with record of flow of Waterman Canyon Creek. Records fair. 

Cooperation. — Gage-height record furnished by United States Forest Service. 

Discharge measurements of Devil Canyon Creek near San Bernardino, Calif., for 19 ll- 

1914. 



e by- 



Dis- 
charge. 



Giage 
height. 



Dis- 
charge. 



1911. 
Nov. 1 

1912. 
Jan. 12 
rel>. 19 
Mar. 10 

19 
Apr. 19 
May 28 
Aixg. 3 

26 
Oct. 24 
Dec. 10 

1913. 
JaH. 14 
Feb. 10 
Mar. 3 
Apr. 4 



F. C. Ebert 

....do.... 

....do.... 

....do 

....do.... 
....do.... 
....do.... 
....do.... 

do 

....do 



F. C. Ebert. 

do 

....do 

....do....... 



Feet. 
L48 



1.55 
1.51 

2.15 



L63 
1.43 
1.37 

1, 5.9 
1,61 



L54 
L62 

L86 



Sec-ft. 
2,1 



2.9 
2.0 

18 
4.5 
7.2 
2.5 
.4 



1.2 



LI 

L7 



1913. 
Apr, 23 
July 11 
Oct. 8 

1914, 
Jan. 13 

16 

16 
Feb. 6 

27 
Mar. 11 

29 

Apr. 16 

May 1 

8 

16 
June 26 
Aug. 13 
Sept. 21 



H. D. McGlashan. 

F.C. Ebert 

.....do 



....do 

....do 

....do...... 



..do.. 



H. T>. McGlashan. , 

F.C. Ebert 

....do , 

....do 

....do.... 

....do 

....do 



,.do.. 



Feet. 
1.68 
1.43 
L33 



L59 
L97 

LSI 
L74 
2.20 
L86 
1.79 
1.68 
L88 
1.77 
1.75 
L58 
L50 
L40 



Sec-ft. 
2.0 

.4 



08.P 

a5.2 
7..& 

25 

12 
9.6 
6.3 

12 
7.5 
7.1 

3.e 

2.1 

La 



a Measured by weir. 



hANTA A:NA EIVER BASII!^, 



303 



Dcdiy discharge, in second-feet, of Devil Canyon Creek near San Bernardino, Calif., for 

1911-1914. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1911-12. 
1 




2.0 
2.1 
2.1 
2.2 
2.2 

2.2 
2.2 
2.3 
2.3 
3.8 

2.6 
2.3 
2.3 
2,3 
2.2 

2.2 

2.2 
2.2 
2.2 

2.2 

2.3 
2.4 
2.4 
2.6 
2.6 

2.4 
2.4 
2.5 

It 


2.4 
2.4 
2.3 
2.6 
2.4 

3.0 

2.9 
2.7 



'' 


2.3 

a 2! 4 

a2.5 

2.6 

2.5 
2.5 

a 2. 5 
a 2. 5 
a 2. 5 

a2.5 
2.5 

a2.4 
2.3 

o2.3 

o2.3 
02.3 
a 2. 3 
a2.3 
a2.3 

2.S 

02.3 
a 2. 3 
a 2. 3 
a2.3 

a2.3 

a2.3 

2.3 

a2.3 
02.3 
a 2. 3 

6 2.3 
2.1 
2.1 
2.0 
1.9 

1.7 
1.7 

1.7 

1.7 
6 1.7 

6 1.7 
61.7 

1.7 
6 1.7 

9.5 

11.0 
9.0 
50 
6 30 
11.0 

7.0 
6v0 
5.5 

6.5 
29 

147 
66 

25 
21 


a 2. 3 
02.3 
a2.3 
2.2 
02.2 

a 2. 2 
a2.2 
ff2.3 
ffl2.3 
a 2. 3 

2.3 
tt2.3 
«2,3 
a2.3 
ffi2.2 

02.2 

02.2 

2.2 

2.3 

a2.3 

02.2 

2.2 

a 2. 2 

a 2. 2 

2.2 

a2.2 

02.2 

a 2. 2 

2.2 

14 
12 
10 

8.5 
8.5 

8.5 
68 

7 
7 
7 

7 

7 

7 

7 

67 

6 7 

610 

98 

164 
6 90 

56 

38 

30 

28 
25 
25 


2.8 
a 5.0 

37.2 
9.4 



i9 

9.4 
16 
a 14 

0512 

all 

a 10 

8.4 

06.4 

4.5 

5.3 

«5.0 

04.7 

a 4. 4 

4.2 

a4.4 

a4.6 
a4.8 
a5.0 

5.2 
a5.1 

5.0 

6 21 
17 
17 
17 
15 

15 
15 
614 
14 
14 

12 
10 
10 
10 
6 10 

10 
10 
69 

8.5 
10 

10 
&1G 
10 
10 
10 

10 
10 
12 
12 

i 10 
|I0 


a4.6 

4.1 

a4.0 

a3.9 

3.9 

«3.9 
3.9 

3,8 
6.9 
9.7 

18 
20 
10 
11 
11 

10 
9.4 
8.4 
7.8 
7.3 

6.5 
5.7 
5.2 
5.0 

4.8 

5.7 
5.2 
4.8 
4.4 
4.2 

10 
10 
10 
10 
10 

10 
10 

■ 8.5 
8.5 
10 

10 
8.5 
8.5 
8.5 

7 

: 7 

7 
7 
6 
6 

7 

8.5 

8.5 

8.5 

8.5 

7 

8.5 
19 
16 


4.2 
a 4. 2 

4.2 
04.1 

4.0 

4.2 
a 4. 6 
5.0 
4.4 
4.0 

3.8 
4.0 
3.8 
3.4 
p. 2 

2.9 
2.6 
2.4 
2.2 
2.2 

a2.2 
2.2 
2.1 

a2.1 
2.1 

2.1 
1.9 
1.9 

1.8 
1.8 
1.8 

16 
16 
14 
14 
12 

10 
12 

8.5 
10 

8.5 

8.5 
8.5 
8.5 

12 

10 

10 

8.5 
7.5 
8.5 
7.5 

7.5 
8.5 
7.5 
10 

8.5 

8.5 

8.5 

7.5 

6 

6 

5 


1.8 

1.8 

«1.8 

al.8 

cl.S 

al.8 
1.8 

1.7 
1.8 
1.8 

1.8 
1.8 
1.8 
1.8 
0I.8 

1.8 
1.6 
1.6 
1.6 
1,5 

1.5 
1.6 
1.4 
1.3 
1.1 

1.1 
1.0 
.9 

.8 
.8 

6 

■ 6 

6 

6 
7.5 

7.5 

8.5 

8.5 

6 

7.5 

6 

5 . 
5 

5 
5 

5 

4 
4 
4 
4 

4 
3 
3 
3 
3 

3 
3 
3 
3 
3 


.0.7 j 

'A 

.6 

.6 
.6 
.5 
.5 

05.4 

.4 
.4 
.4 
.4 
.4 

.4 

.5 

0.3 

.3 

.4 

.4 
.4 
.4 
.3 
.3 

.3 
a. 3 
.3 
.3 
.3 
.3 

3 

3 . 
3 
3 
2 

2 
2 
2 

2 
2 

1.5 

1.5 

1.5 

2 

1.5 

1.5 

1.5 

1.5 

2 

2 

2 

1.5 

1 

1 
1 

1 

1.5 
1.5 
1 

.7 
.7 


0.3 
.3 
.4 
.3 
.3 

a. 4 

.4 

0.4 

.3 

.4 
a. 4 

.4 
0.4 

.3 

.3 
.3 
.3 
.3 
.3 

.08 

.08 

.3 

.3 

.1 

.2 

a. 2 
.30 
.40 

a. 52 
.65 

1.0 
1.0 
I.O 

.7 
.7 

1.0 
1.0 
1.0 
.7 

.7 

.7 
.7 
1.0 

.7 

.7 

.7 
.4 

.4 

.'4 

.4 

.7 
.7 

.7 

.7 

1.0 

1.0 

i!o 
1.0 


0.75 


2 




.87 


3.. 




.99 


4 




1.2 


5 


" 


1.1 


6 





.87 


7 





.87 


8 




.87 


9 




.87 


10 


■■ 


.59 


11 




.75 


12 -.. 




.49 


13 




a. 52 


14 




.54 


15 




.54 


16 




.49 


17 . 




.49 


18 

19 


_ 


.49 

.44 


20. 




.44 


21 




.44 


22 




.44 


23 .;... 


.44 


24 ...J 


.49 


25 


.49 


26 '■ 


.49 


27 ..1 . .. 


.49 


28 


.49 


29 


.49 


30.. 




.49 


31 






1913-14. 
1... 


0.5 
.4 
.2 
.2 
.3 

.35 
.35 
.25 
.2 
.2 

.2 
.35 
.35 
.25 
.3 

.2 

•J 

.2 

,2 

.35 
.4 
.45 
.5 
.55 

.55 

6.5 
b. 5 
&.5 

.5 

.5 


.5 
1.5 
1.4 

.7 
.75 

.65 
.65 
.6 
.5 
.45 

.6 

1.0 

3.9 

&1.5 

6L5 

6 1.5 
6 1.5 
6 1.5 
6 5.0- 
6 3.5 

62.a 
1.8- 

2. a 

1.5. 
&1.5 

6 1.5 

1.5 

1.5 

6 1.5 

6 1.5 


1.7 
6 1.7 
1.7 
1.7 
1.7 

6 1.6 
1.6 

6 1.6 
1.6 
1.5 

6 1.5 
1.5 

6 1.4 
1.4 
1.4 

6 1.4 

61.4 

1.4 

1.4 

.61.4 

1.5 
2.3 

6 1.4 
2.3 
2.1 

6 2.5 

6 3.0 

2.0 

2.0 

6 2.5 
2.5 


.7 


2 


.7 


3 


.7 


4 . 


.7 


5 


.7 


6 


.7 


7 


.7 


8 


.7 


9 


.7 


10 ....... 


.7 


11.. 


.7 


12 


.7 


13 


1.0 


14 


.7 


15 

16 


.7 

.7 


17 


.7 


18 


.7 


19 


7 


20 


.7 


21 


1.0 


22 


1.0 


23 


1 


24 


1,0 


25. 


1 


26 


1 


27 


1.0 


28.... 


1 0* 


29 


1 


30... 


1.0 


31 









a Gage not read, discharge interpolated. 

6 Gage not read, discharge interiiolated or estimated by co.mpaiison with record of flow on Waterman 
Caaiy on Creek. 

Note.— No record Dec. 9-31, 1911, and Mai'. 5-19, 1912. 



304 SURFACE WATER OF PACIFIC SLOPE, SOUTHERI^ CALIFORITIA. 

Monthly discharge of Devil Canyon Creel near San Bernardino, Calif., for 1911-1914, 



Discharge in second- 
feet. 



mum. mum. 



Run-off 
(total in 
acre- 
feet). 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



Rtm-ofl 
(total 

in aere- 
feet). 



1911-12, 
November. . 
December 1- 

January 

February. . . 

April 

May 

June 

July 

August 



3.8 
3.0 
2.6 
2.3 
20 
5.0 
1.8 
.7 
.65 
1.2 



2.0 
2.3 
2.3 
2.2 
3.8 



2.35 
2.59 
2.37 
2.24 
7.10 
3.08 
1.55 
.42 
.32 
.63 



140 
41.1 

146 

129 

422 

189 
92.2 
25.8 
19.7 
37.5 



1913-14. 

October 

November. . 
December.. 

January 

February. . . 

March 

April 

May 

June 

July.: 

August 
m 

The year 



0.55 
5.0 
3.0 
147 
164 
21 
19 
16 
8.5 
3.0 
1.0 
1.0 



0.2 
.45 
1.4 
1.7 
7.0 
8.5 
6.0 
5.0 
3.0 
.7 
.4 



0.34 
1.52 
1.76 
16.3 
25.4 
12.0 



4.92 
1.72 
.77 
.81 



184 



;.8i 



21 

90 
108 
1,000 
1,410 
738 
537 
583 
293 
106 

47 . 

48 



LYTLE CREEK AT MOUTH OF CANYOIT NEAR RIALTO, CALIF. 

Lytle Creek drains the southern slope of the Sierra Madre and 
discharges its waters upon the plains northwest of San Bernardino. 
Although it drains a comparatively small area of 54 square miles, at 
the mouth of the canyon its waters are important for irrigation. 
Owing to the controversies which have arisen over its diversions, a 
number of lawsuits for the settlement of the claims have been insti- 
tuted from time to time. A number of measurements of this stream 
at the mouth of the canyon from 1892 to 1896, inclusive, are given 
below. They are copied from court records of proceedings in which 
the water supply of this creek was involved. These cases were tried 
in the San Bernardino courts by Judge A. W. McKinley. The 
measurements were made by A. H. Koebig and G. O. Newman, on 
weirs, and are believed to be accurate. 

Discharge vieasuremerits of Lytle Creek at mouth of canyon near Rialto, Calif, for 1892-1896. 



Date. 


Discharge. 


Date. 


Discharge. 


Date. 


Discharge. 


1892. 
June 3 


Second-feet. 
35.58 
18.70 
22.04 
20.64 
22.04 
20.68 

49.20 
49.20 
46.34 
45.30 


1894. 
June 6 


Second-feet 
17.96 
15.50 
13.22 
13.22 
13.36 
11.44 
12.32 
16.20 

56.10 

40.78 


1896. 
Mar. 3. 


Second-feet. 
18.08 


Sept. 20 


8 


Apr. 23 


19.14 


30..... 


July 10 


24 


18.60 


Oct. 28 


^ 11.... 


25 


20.52 


JSfov. 21 


25 


May 3 


18.52 


27 


Aug.l9 




17.26 




^ 25 . 


10 


18.16 


1893. 


Oct. 3 

1895. 

Sent 2 


25 


15.32 


Sept. 7 


26 


12.84 


^ 18 






25 




Oct. 4 


^ so".:;: 











Beginning in 1894, measurements of Lytle Creek were also made by 
H. D. Sibley, who was zanjero of the Lytle Creek canals at that time. 
The measurements were usually made because the discharge of the 



SANTA AFA KIVER BASIN. 



305 



stream was below normal. In the winter and spring only the quan- 
tity of water needed for irrigation was turned into the ditches, but 
later in the summer the entire flow was diverted. These measure- 
ments also were made over weirs, and are believed to be fairly 
accurate. During 1898 trouble was experienced by miners taking the 
water from the natural channel and turning it into dry channels, 
sluice boxes, weirs, mill races, etc., thereby causing a loss of from 
20 to 25 per cent of the total flow of the creek. Only a portion of 
these diversions were returned to the creek. The measurements of 
Mr. Sibley would not show the full flow of the Lytle Creek at all times, 
and sometimes show less than the full discharge, for the reasons 
mentioned above. During 1899 the quantity of water which was 
diverted into the main canal was measured daily by the Anglo- 
American Canaigre Co., at a weir erected near the head of its cement 
ditch. The volumes given have been occasionally checked by visit- 
ing the canal and making meter measurements. It is believed that 
during 1899 practically all of the water of the stream was diverted 
into the canal. 

Daily discharge, in second-feet, of Lytle Creeh main canal above Rialto, Calif , for 1894- 

1901. 



Day. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Day. 


Apr. 


May. 


June. July. 


Aug. 


Sept. 


1894. 
1 






15.5 








1894. 
16. 


22.6 


'ig.'i' 


14.4 








2 












17 








3 




24.1 


17.2 




10.9 




18. . 




16.0 


'ii'i" 


13.7 


11.5 


4 




19 


22.6 






5. 


16.1 






10.8 






20 










6 


22.6 








21 






14.8 


12.7 






7. 




14.1 








22. 


24.9 




11.9 


12.7 


8 


19.9 






10.8 


13.0 


23 




14.6 
14.9 






9. 








24 




18.2 








10 














25 


25.4 








11. 


17.8 


18.5 


14.3 


10.8 






26 












12 






27 






15.0 








13^ . 


21.8 






13.4 






28. 




16.6 








14 




14.3 




13.2 


29 












15 










30 




























31 









11.7 


13.4 

















142131°— 21— wsp 447- 



-20 



306 SUEFACE WATER OF PACIFIC SLOPE ^ SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Lyile Greek main canal above Rialto, Calif., for 1894- 
1901 — Continued. 



Day. 


Oct. 


Not. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1894-95. 
1 










54.4 








2 
















3 


13.5 








I 






4 








68.0 






61.4 


5 
















6 










1 






7 


11.4 


14.5 














8 




33.9 










9 .... 




13.7 












10... 














48.8 


11 . 


13.7 
















12 
















50.8 


13.. I 
















14 . ' 




i 










15 












16 . ' 












50.4 




17 




1 




i 


44.8 


18 li. 5 




26.4 


43.8 


1 






19 i 










20 i 
















21 ! 






57.5 










22 1 ... . 


12.9 












23 


37.4 








52.5 




24 










47.1 


25 14. 2 




! 








28 1 . 












54.4 




27;...:: i.;.:.:.. 














28 '' 














36.5 


29 
















30 


12.5 














31 ....' . 














1 
















Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. Aug. ; Sept. 


1895--95. 
1 
















17.8 




; 


13.2 


2 












22.2 


14.1 


11 1 


3 


36.9 














4 


















" 1 i ° 


6 ... 








20.0 








! 




6 
















11 4 


i 


12.2 






30.5 


















11.5 


8 


31.5 






19.2 








11.1 




9 














13 

12 


t^ 




10 
















^ 


. 




12.2 


11 




24.9 




i 














1 
1 


12 






! 








11.9 




10.5 




13 






22.0 




18.4 












14 












12.2! 12.2 






15 














24.9 








16.. 








21.4 






17.1 






13. 7 


10.8 


17 










19.8 










18 


41.9 










19.7 








11.3 




19 ... 




















11.8 


20 


1 
















10.5 






21 


36.5 
34.1 


















12.0 




22 


24.0 




















23 




















i2.5 
12.5 




24 


1 










22.4 










25 




















20 . 






















11.8 


27. 


















10.7 







28... 


34.5 


















13.5 




29 








17.5 














30 












15.0 










31 


34.5 















































SANTA AKA KIVER BASIl^. 



307 



Dailij discharge^ in second-feet, of Lytle Creek main canal above Rialto, Calif., for 1894- 
-? 9(97— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Aug. 


1896-97. 
1 




















2 




















3 










60.0 










4 














30.0 




5 


12.2 
















6 










60.0 








7 










24.0 








8 




















9 


11.6 




16.0 








50.0 


30.0 




10 


16.0 








11 


















12 


















10.6 


13 




















14 




16.0 






60.0 








15 
















16 






17.0 


24.0 








34.0 




17 














18 




1 




80.0 






1 


19 












60.0 






20 


















21 










50.0 










22 






16.0 












23 


11.1 
















24 











50.0 






25 




28.0 


" ■ ' 


20.0 




60.0 






26... . 


20.0 












27 




::::::::::::: 










28 










56.0 


70.0 40.0 






29 








28.6 






30 






24.0 










31 






















1 










Day. 


May. 


Jime. 


July. 


Day. 


May. 


June 


July. 


Day. 


May. 


June. 


July. 


1898. 
1 






10.9 


1 

1 
1 

i 

1 
1 
1 
1 

2 


1898. 






1 


1898. 
21 






2 






2 ' 




1 


22 




.. . 
11.7 




3 




1 


3 


::::::i::;;::i 


23 






4 .|... i 




1 i 


24 








5 ..} ' :l::::: 


f; 


13.9 




25:::::::::':: """■"■ 






6 1 1 


3 


26 








7 1 






7 








27 








8 ! 














28 


14.6 


9.0 




9 i 






9 








29 




10 i 











11.5 




30 


















31 





























308 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Lytle Creeh main canal above Rialto, Calif, for 1894- 
i 9 W— Continued. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


Dec. 


1899. 
1 


11.1 
12.1 
12.1 
11.4 
11.7 

11.6 
11.6 

ia.6 

11.6 
12.0 

16.1 
13.1 
12.2 
12.0 
11.9 

12.0 
12.0 
12.0 
11.9 
11.8 

11.7 
11.8 
11.7 
11.6 
11.6 

11.6 
11.6 
11.6 
11.6 
11.6 
11.7 


11.8 
12.1 
12.1 
12.4 
12.4 

12.5 
12.6 
12.4 
12.1 
11.8 

11.8 
11.8 
11.8 
11.6 
11.5 

11.5 
11.5 
11.3 
11.4 
11.3 

11.3 
11.3 
11.3 
11.8 
11.4 

11.4 
11.3 
11.3 


11.2 
11.1 
11.2 
11.1 

10.8 

10.6 
10.4 
10.4 
10.9 
10.6 

10.6 
10.6 
10.7 
10.7 
10.7 

15.3 
14.7 
13.7 
12.3 
13.7 

13.1 
12.9 
12.8 
13.2 
14.8 

13.5 
13.4 
13.6 
13.6 
13.5 
13.5 


9.7 
8.9 
8.5 
12.6 
12.5 

12.1 
11.9 
11.8 
11.7 
11.9 

11.7 
11.7 
11.0 
10.6 
10.6 

10.7 
10.6 
10.7 
10.2 
10.8 

9.9 
9.9 
10.3 
10.6 
10.5 

10.4 
10.4 
10.4 
11.0 
11.2 


11.2 
10.9 
10.9 
10.5 
10.5 

10.5 
10.5 
10.2 
11.8 
9.5 

9.5 
9.2 
9.6 
9.5 

9.8 

9.4 
9.4 
9.4 
9.7 
9.8 

9.5 
9.4 
9.4 
9.2 
9.2 

9.0 
9.0 
9.0 
9.4 
9.3 


12.2 
10.4 
9.7 
9.5 
9.4 

9.6 
9.2 
9.0 

'"7.'2" 

7.5 
8.2 
8.1 

7.8 

7.6 
7.8 
7.9 
7.7 
7.3 

7.5 
7.6 
7.4 
7.1 
7.2 

7.4 
7.3 
7.2 
6.7 
6.4 


6.3 
6.8 
6.4 
6.4 
6.4 

6.4 
6.3 
6.2 
6.2 
6.0 

5.9 
6.0 
5.9 
5.9 
6.0 

6.0 
5.8 
5.4 
5.6 
5.6 

5.8 
7.2 
8.6 
9.3 
8.9 

9.2 
9.4 
9.5 
9.7 
9.6 
10.0 


9.4 
10.4 

9.6 
10.7 
12.2 

11.0 
10.8 
11.0 
11.0 

8.7 

12.0 
12.0 
12.2 
12.1 
12.3 

12.3 
12.2 
12.6 
13.0 
13.0 

12.5 
12.4 
12.4 
12.5 
12.4 

12.6 
12.5 
12.2 
12.3 
12.2 
12.1 


14.5 
15.1 

16.6 
16.7 
16.0 

16.0 
16.0 
15.9 
16.5 
16.1 

16.0 
15.8 
15.3 
15.4 
16.0 

15.5 
15.3 
14.3 
15.7 
14.9 

15.2 
16.1 
10.8 
10.4 
10.3 

10.3 
10.5 
10.5 
10.6 
10.6 


10.9 
10.8 
10.8 
10.8 
10.7 

10.6 
10.1 
9.9 
10.2 
10.8 

11.7 

a 72.1 
12.4 
13.5 
12.7 

13.0 
13.0 
12.3 
12.0 
11.4 

11.2 
11.6 
11.9 
10.3 
10.7 

11.4 
11.3 
11.1 
11.0 
11.4 
11.3 


10.5 
10.3 
10.3 
10.6 
10.5 

10.6 
10.6 
9.9 
9.9 
10.0 

10.2 
10.5 
10.9 
11.0 
11.3 

11.7 
11.5 
12.0 
11.9 
11.8 

12.2 
12.7 
12.1 
12.0 
13.8 

H:'5 

11.5 
11.4 
11.2 


11 1 


2 


11 3 


3 


11.4 


4 


11 1 


5 


11.3 


6 


11.3 




11.3 


8 


11.6 


9 


11.4 


10 


11.5 


11 


11.4 


12 


11.3 


13 


11.2 


14 


11 1 


15 


11.2 


16 


12.9 


17 


11.8 


18 - ... 


11.8 


19 


11.6 


20 


11.6 


21 


11.3 


22 


11 1 


23 


11.1 


24 


11.1 


25 


10.9 


26 


11.2 


27 


11.1 


28 


11.1 


29 


11.2 


30 


11.1 


31 


11.3 














Day. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


Oct. 


Nov. 


1 


1901. 








21.7 
20.4 
19.8 
18.5 
13.8 

14.9 
15.2 
15.1 
14.3 
12.1 

12.7 
13.5 
14.0 
14.3 
14.3 

16.1 
16.1 
16.1 
16.1 
16.1 

15.8 
14.9 
14.9 
15.8 
18.5 

16.7 
16.1 
16.1 
16.1 
16.1 
15.2 


14.0 
15.2 
14.6 
14.3 
13.2 

13.2 
13.2 
14.6 
13.2 
12.4 

12.9 
12.7 
12.7 


11.3 
11.6 
11.3 
11.1 
10.5 

10.2 
10.5 
10.2 
10.2 
10.0 

9.7 
9.5 
9.5 
9.5 
9.5 

9.5 
9.5 
9.5 
8.7 
9.0 

9.5 
9.2 
9.5 


10.5 
10.0 
10.2 
10.8 
10.8 

11.0 
11.3 
11.3 
11.0 
10.5 

10.2 
10.5 
10.5 
10.5 
10.5 

10.2 
10.2 
10.0 
10.0 
10.2 

10.5 
10.8 
10.5 
10.5 
10.0 

10.2 
10. 2 
10. 
10.0 
10.0 
9.7 


9.5 
9.5 
9.2 
9.2 
9.5 

9.7 
9.7 
9.7 
10.0 
9.7 

9.5 
9.5 
9.2 
9.2 
9.0 

9.0 
8.7 
9.0 
9.2 
9.5 

9.7 
11.3 
11.5 
11.0 
10.8 

10.5 
10.5 
10.2 
10.8 
11.3 


11.0 
10.8 
10.8 
10.8 
10.8 

10.5 
10.5 
12.6 
12.4 
12.1 

11.8 
12.1 
12.4 
12.4 
12.6 

13.2 
12.6 
13.2 
13.2 
12.6 

12.6 
13.5 
14.0 
14.0 
15.8 


17.6 


2 




17.3 


3 




18.5 


4 




18.8 


5 




18.5 


6 




18.5 


7 . . 






8 






9 






10 . . 






11 


















14 






15 . .. 




12.9 

12.1 
12.1 
12.1 
12.1 
12.4 

12.4 
11.6 
11.8 
12.9 
12.7 

12.1 
11.6 
11.0 
11.0 
10.5 










17 






18 


















21 






22 






23 






24 






25 








26 








27 


16.1 
16.1 
16.1 
16.1 








28 








29 




16.1 
16.1 
15.8 










31 






















1 





a Rain in mountains. 



SANTA ANA EIVER BASIN. 



309 



Monthly discharge of Lytle Creek canals at intake for 1899. 
[Drainage area, 54 square miles.] 





Discharge in second-feet. 


Run-ofi. 


Montli. 


Maximum. 


Minimum. 


Mean. 


Per 
square 
mile. 


Depth in 

inches on 

drainage 

area. 


Total in 
acre-feet. 


1899. 


16.07 
12.60 
15.29 
12.55 
11.78 
12.20 
10.02 
12.60 
16.68 
72.14 
12.69 
12.93 


11.07 
11.29 
10.37 
8.47 
8.98 
6.39 
5.41 
8.68 
10.29 
9.85 
9.90 
10.94 


11.90 
11.74 
12.23 
10.83 
9.81 
8.14 
7.06 
11.76 
14.30 
13. 30 
11.20 
11.30 


0.220 
.216 
.226 
.200 
.181 
.150 
.131 
.218 
.265 
.246 
.207 
.209 


0.25 
.23 
.26 
.22 
.21 
.17 
.15 
.25 
.30 
.29 
.23 
.24 


732 




650 


March 


750 


April 


643 


May 


603 




482 


July 


437 




726 


September 


851 


October 


818 




666 


Decembe*" 


695 


















8,050 

















Monthly discharge of Lytle Creek at headgates of Rialto canals for 1901. 
[Drainage area, 52 square miles.] 



1901. 

May 

June 

July 1-23 

August 

September 

October 1-25, 29-31.. 



Discharge in second-feet. 



21.7 
15.2 



11.3 
11.5 



12.1 
10.5 



9.7 

8.7 



i 



15.8 
12.6 
10.0 
10.4 
9.8 
12.7 



Per 
square 
mile. 



0.30 
.24 
.19 
.20 
.19 
.24 



Depth in 

inches on 

drainage 

area. 



0.35 
.27 
.16 
.23 
.21 
.25 



Total in 
acre-feet. 



971 
750 

456 
639 
583 
705 



LYTLE CREEK NEAR SAN BERNARDINO, CALIF. 

Location.— In NW. \ sec. 26, T. 2 N., R. 6 W., at Southern California Edison Co.'s 
diversion dam, below junction oi North and Middle forks of Lytle Creek, in 
Angeles National Forest, about 3 miles above mouth of canyon, and 14 miles 
northwest of San Bernardino, San Bernardino County. 

Drainage area. — Not measured. 

Elevation. — About 2,800 feet above sea level. 

Records available. — September 18, 1904, to September 30, 1918, 

Gage. — Watson water-stage recorder in pool above weir in power canal. 

Discharge. — Computed by combining flow in power canal with flow over diverting 
dam ; discharge of power canal is measured near intake by an 8-foot steel plate rec- 
tangular weir; flow over diverting dam is estimxated. 

Extremes OP discharge. — 1904-1918: Maximum mean daily discharge reported, 
4,750 second-feet January 18, 1916; minimum mean daily discharge reported, 
5.1 second-feet September 30 and October 3, 1904. 

Diversions. — No information. 

Regulation. — No information. 

Accuracy. — Daily discharge is mean of two observations recorded each day at 6 a. m. 
and 6p.m. Records are good for periods during which total flow of creek is di- 
verted into power canal; for discharges above 23 second-feet (capacity of canal) 
they are subject to error. 

Cooperation.— Daily discharge record furnished by Southern California Edison Co., 
through H. W. Dennis, construction engineer. 



310 SURFACE WATER OF PACIFIC SLOPE ^ SOUTHERN CALIFORI-TIA. 

Daily discharge, in second-feet, of Lytle Creek ryear San Bernardino^ Calif ..for 1904-1918, 



Day. 


Sept. 


Oct. 


iNOV. 


Dec. 


Jan. 


Feb.' 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1904-5. 
I 




5.3 
6.2 
5.1 

7.5 
7.6 

8.2 

8.5 
8.6 

8.8 
8.7 

8.6 
8.6 

8.4 
8.3 
8.5 

8.4 
8.4 

8.4 
8.2 
8.3 

8.4 
8.4 
8.7 
7.7 
8.0 

7.8 
7.8 
7.8 
7.8 
7.<S 
8.0 


8.0 
8.3 

8.2 
8.2 
8.5 

8.6 

8.8 
8.7 
8.5 
8.4 

8.4 
8.6 
8.2 

8.8 
8,9 

8.6 
8.9 
8.8 
8.5 
8.6 

8.6 
8.8 
8.8 
9.0 
9.- 2 

9.2 
9.3 
9.3 
9.1 
9.4 


9.3 
9.6 
9.8 
9.8 
9.6 

9.7 
9.7 
9 7 
9.6 
9.6 

9.6 

9.8 
9.6 
9.6 
9.6 

9.6 
9.6 
9.6 
9.6 
9.6 

9.6 
10 
10 
10 
10 

10 
10 
10 
10 
10 
14 


12 
12 
12 
12 
12 

12 
11 
11 
13 

15 

14 
14 
14 
14 

14 

18 
15 
14 
14 
14^ 

19 
18 
17 
16 
16 

16 
15 
16 
15 
15 
15 


15 
...... 

(«) 

45 
45 
40 
39 

37 
36 
35 
29 

37 


33 
33 
33 
33 
33 

33 
33 
32 

32 

32 

33 

,.<rA. 

"{a)' 


50 
49 
48 

48 
48 

46 

46 

44 
44 

44 

44 
42 
42 
42 

42 

40 
40 
40 
40 
40 

40 
40 
39 
39 
39 

38 
38 
38 
38 
38 


37 
43 

38 
40 
38 

38 
38 
39 

38 
38 

38 

38 
.38 

37 

37 
37 
37 
37 
-36 

36 
36 
36 
36 
35 

35 
35 
35 
35 
34 
34 


34 
34 

34 
34 
33 

33 
32 
32 

32 

32 
32 
31 

31 
31 

31 

31 
30 
30 

30 

30 
30 
30 
30 
30 

29 
29 
29 
29 
29 


29 

29 

28 
28 
28 

28 
28 
28 
27 
27 

27 
27 
26 

26 
26 

26 
26 
26 
26 

26 

26 
25 
25 
26 
26 

26 
26 
26 
28 
28 
26 


26 
28 

25 
26 
26 

26 

27 
28 
28 
29 

30 
30 
30 
31 
31 

31 
31 
31 
32 
32 

32 
32 
32 
32 
32 

32 
32 
32 
32 
32 
32 


32 


2 




32 


3 




32 


4 . . 




32 


5„.... 




32 


6 




33 






33 


8 




34 


9...... 




34 


10 




34 


11 




35 


12 




35 


13 




38 


14 




36 


15 




37 


16 




37 


1?..... 




41 
41 

40 
38 
37 
36 

34 

33 
32 
32 




"("«)"■ 

75 

70 
68 
63 

55 

54 
53 
50 
55 
51 
48 


38 


18 


6.8 
7.2 

7.2 

7.0 
7.7 
7.6 
9.1 
8.0 

8.1 

7^6 
5.5 
5.1 


38 


19 


38 


20 


38 


2]...,...-. 


39 


22 


39 


23 


39 


24 


39 


25 

26 - 


39 
40 


Tl.... 


39 


28 


40 


29.„ - 


39 


30 


39 


31 











Oct. 


Nov. 


Dec. 


Jan. 


39 


38 


40 


27 


39 


38 


40 


27 


39 


38 


49 


26 


39 


38 


40 


25 


38 


40 


40 


24 


38 


38 


40 


24 


38 


40 


40 


24 


38 


42 


40 


24 


38 


38 


40 


24 


38 


38 


40 


24 


38 


38 


40 


24 


38 


38 


40 


25 


38 


39 


40 


25 


38 


39 


40 


25 


38 


39 


40 


24 


38 


40 


32 


24 


38 


40 


32 


24 


38 


39 


31 


24 


38 


39 


31 


44 


38 


42 


SO 


35 


39 


40 


30 


34 


39 


40 


29 


34 


38 


40 


29 


34 


38 


40 


29 


33 


38 


40 


28 


32 


38 


40 


28 


32 


38 


42 


28 


32 


38 


41 


28 


31 


38 


40 


28 


28 


38 


40 


28 


26 


38 




27 


26 

1 



Mar. Apr. 



May, June. Jaiy, Aug. Sept. 



1905-6. 

1--. 

2 

4 

5 

6 

7 

'(^V.'.'.V.'.V. 
10... 

11 

12 

13 

14 

15 

16 

17 

18 -.. 

19 

20 

21..-. 

22 

23 

24 

25 

20 

27 

28 

29 

80 

31 



50 


51 


51 


51 


51 


51 


51 


51 


o'i 


51 


53 


50 


53 


49 


53 


48 



a Discharge over 80 second-feet at time of one daily observation. 



SANTA ANA EIVES BASIN,. 



311 



Daily discharge^ in second-feet, of Lytle Creek near San Bernardino, Calif., for 1904-^ 
19] 8— Contimi&d. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1906-7. 
1 


43 

40 
39 
39 

39 
39 
39 
39 
39 

39 
39 
39 
39 
39 
39 

60 
60 
60 
60 
60 

60 
60 
60 
60 
60 

60 
60 
60 
60 
60 

60 
69 
60 
60 
60 

60 
60 
65 
60 
60 

60 
60 
60 
60 
60 
60 


39 
39 
39 
39 
39 

39 
39 
39 
39 
39 

39 
38 
37 
37 
37 

37 
37 
37 
37 
37 

37 
37 
37 
37 

37 

37 
37 
37 
37 
37 

60 
60 
60 
60 
60 

60 
60 
60 
60 
60 

55 
50 
50 
50 
50 

50 
50 
50 
50 
50 

50 
50 
50 
50 
50 

50 
50 
50 
50 
50 


38 
43 
47 
47 
47 

45 
45 
45 
45 

45 

45 


68 
68 
66 
66 
70 

67 

74 
72 
(a) 


















2 


















3 
















<"*™ 


4 
















5 















. . . 


70 


6 
















70 


7 
















70 


8 
















70 


fit 
















70 


w 
















70 


11 


















70 


12 


















70 


13 





















70 


14 . . 














....... 




70 


15 


(a) 

69 
69 
65 
62 
62 

61 
60 
60 
60 
59 

65 
68 














70 


16 
















70 


17 
















65 


18 
















00 


19... 
















60 


20 
















GO 


21 















1 


60 


22 












. ,.... 


60 


23-... 














60 


2-1 
















60 


25 
















60 


26 

















60 


27. 












"""I 


60 


^ 















€0 


m 


68 
68 
68 

50 
50 
50 
50 
50 ; 

50 
50 
50 
50 
50 

50 
50 
50 
50 
45 

40 
40 
40 
40 
40 

40 
40 
40 
40 
40 

40 
40 
40 
40 
40 
40 












60 


30 












1 


60 


31 




















1907-8. 
1 .. . 


40 
40 
40 
40 
40 

40 
40 1 
40 
40 
40 

40 
40 
40 
40 
40 

40 
40 
40 
40 
40 

40 
40 
55 


::::::: 



■■ 

"(«)■■ 

60^ 
60 
60 

60 

60 
60 
60 
60 
60 

60 
60 
60 
60 


60 
60 
60 
60 
60 

60 
• 60 
60 
60 
60 

60 
60 
55 

50 

50 

50 
50 
50 
50 
50 

50 
50 
50 
50 
50 

50 
50 
50 
50 
50 
50 


50 
50 
50 
50 
50 

50 
50 
50 
50 
50 

50 
50 
50 
50 
50 

50 
50 
50 
50 
50 

50 
50 
50 
50 
50 

50 
50 
50 
50 
50 


50 
50 
50 
50 
50 

50 
50 
50 
50 
50 

50 
50 
50 
50 
50 

50 
50 
50 
40 

40 

40 
40 
40 
40 
40 

40 
40 
40 i 
30 
30 
30 


30 
30 
30 
30 
30 

30 

30 
30 
30 

28 
26 
26 
26 
26 

26 
26! 
26 
26' 
26 

24 
23 
23 
23 
22 

22 
22 
22 
21 
21 


21 
21 
21 
22 

22 

22 

(&) 

% 
21 

21 
21 
21 
21 
20 

20 
20 
21 
20 
20 

20 
20 
20 
20 
20 

20 
20 
20 
20 
20 
20 


20 
20 
20 
20 
20 

% 

19 
19 
19 

19 
19 
19 
19 
19 

19 
19 
19 
19 
19 

19 
19 
19 
19 
19 

19 
19 
19 
19 
19 
19 


19 


2 


19 


3 


19 


4 


19 


5 


19 


G 


19 


7 


19 


8 


20 


9. . . . 


20 


K) 


20 


11 


20 


12 


20 


13. 


20 


14 


20 


is 


20 


16.... 


21 


17 


20 


18 


20 


19 .. . 


21 


20 


21 


21 


21 


22 


21 


23 


21 


24.... 


22 


25 


22 


26 ... 


22 


27 


22 


28 


21 


29 


21 


30 


21 


31 









I Discharge over 80 second-feet at time of one daily observation. 



b No record reported. 



312 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



in second-feet, of Lytic Creek near San Bernardino, Calif., for 1904^ 
1918— Continued. 



Bay. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1908-9. 
1 


21 
22 
22 
22 
22 

22 
21 
21 
21 
21 

22 
22 
22 
22 
22 

23 
24 
24 
23 
23 

23 
23 
22 
23 
23 

22 
22 
22 
22 
22 
22 

35 
35 
37 
35 
35 

35 
34 
33 
33 
33 

33 
33 
33 
33 
33 

33 
33 
33 
33 
33 

33 
33 
33 
33 
33 

33 
33 
33 
33 
33 
33 


22 
22 
22 
22 
22 

22 
22 
21 
22 
22 

22 
22 
22 
22 

22 

22 
22 
22 
22 
22 

22 
22 
22 
22 
22 

22 
22 
22 
22 
22 

33 
33 
33 
33 
33 

33 
33 
33 
37 
35 

35 
35 
35 
39 
37 

37 
37 
34 
33 
33 

33 
33 
33 
33 
33 

35 
34 
33 
33 
33 


22 
34 
36 

28 
27 

27 

27 
27 
26 
27 

26 
26 
26 
26 
26 

26 
26 
25 
24 
23 

22 
22 
22 
21 
21 

21 
21 
21 
20 
20 
20 

(&) 
33 
33 
33 

33 
33 
33 


20 
20 
20 
20 
20 

20 
20 
19 
21 
20 

20 
21 
23 
23 
23 

22 
22 
22 
22 
22 

(a) 


30 
43 
43 
43 
43 

43 
(a) 


"(a)" 

60 
60 
60 
60 
60 

60 
40 
40 
40 
40 

40 
40 
40 
40 
40 

50 
50 
40 
43 
43 

43 
43 
43 
43 
43 
43 

61 
56 
45 
39 
38 

37 
37 
37 
37 
37 

36 
35 
35 
35 
35 

35 
35 
33 
35 
35 

35 
35 
35 
34 
33 

33 
36 
39 
37 
35 
35 


43 
^ 43 
43 
43 
43 

43 

43 

' 43 

43 

43 

43 
43 
43 
43 
43 

43 
43 
43 
43 
43 

43 
43 
43 
43 
43 

43 
43 
43 
43 
43 

35 
34 
34 
33 
33 

33 
33 
32 
33 
33 

33 
33 
33 
33 
33 

33 
33 
33 
33 
33 

33 
33 
33 
33 
32 

31 
31 
31 
31 
31 


43 
43 
43 
4S 
43 

43 
43 
43 
43 

43 

43 
43 
43 
43 

43 

43 
43 
43 
43 
43 

43 
43 
43 
43 
43 

43 
43 
43 
43- 
43 
43 

31 
31 
31 
31 
31 

31 
31 
31 
31 
31 

31 
31 
31 
31 
31 

31 
31 
31 
31 
31 

31 
31 
31 
31 
31 

31 
31 
31 
31 
30 
30 


43 
37 
37 
37 
37 

37 
37 
37 
37 
37 

37 
37 
37 
37 
37 

37 
37 

37 
37 
37 

37 
37 
37 
37 
37 

37 
37 
37 
37 
37 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

31 
30 
30 
30 
30 

30 
29 
29 
29 
29 

29 
30 
30 
30 
30 

30 
30 
30 
30 
23 


33 
33 
33 
33 
33 

33 
33 
33 
31 
29 

29 
29 
29 
29 
29 

29 
29 
29 
29 
29 

29 
29 
29 
29 
31 

29 
. 29 
29 
29 
29 
29 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 
30 


29 
29 
29 
29 
29 

29 
29 
29 
29 
29 

29 
29 
30 
31 
31 

32 
33 
35 
35 
35 

35 
35 
35 
35 
35 

36 
37 
37 
37 
37 
38 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
28 
28 

38 
28 
28 
28 

28 

28 
28 
28 
28 
28 
28 


37 


2 .... 


37 


3 


37 


4 


37 


5 


37 


6 


37 


7 


37 


8 


37 


9 


37 


10 


37 


11 


36 


12 


35 


13 


35 


14 


,35 


15 


35 


16 . .. 


35 


17 


35 


18 


35 


19 


35 


20 


35 


21 


35 


22 


35 


23 -- 






35 


24 






35 


25 






35 


26 - - . - - 


60 
60 
55 
50 
45 
35 


61 
61 
61 
61 
61 

61 
61 
61 
61 
61 

61 
61 
61 
61 
61 

61 
61 
61 
61 
61 

61 
61 
61 
61 
61 

61 
61 
61 


35 


27 .- 


35 


28 


35 


29 


35 


30 


35 


31 




1909-10. 
1....... 


28 


2 


28 


3 


28 


4 


28 


5 


28 


6 


28 


7 


(^) 


8 


28 


9 


28 


10 


47 
38 

% 

37 
37 

37 
37 
37 
37 
37 

40 
37 
37 
36 
35 

35 
35 
35 
35 
34 


63 

63 
63 
63 
63 
63 

63 
63 
63 
62 
61 
61 


28 


11 


28 


12 


27 


13 


27 


14 


27 


15 


27 


16 


27 


17 


27 


18 


27 


19 


27 


20 


27 


21 


27 


22 


27 


23 


27 


24 


27 


25 


27 


26 


27 


27 


27 


28 


27 


29 


27 


30 


27 


31 





a Discharge over 80 second-feet at time of one daily observation. 



b No record reported. 



SANTA ANA KIVER BASIN. 



813 



Daily discharge, in second-feet, of Lytle Creek near San Bernardino, Calif., for 1904- 
1925— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept 


1910-11. 
1 


27 
27 
27 
27 
27 

27 
27 
26 
26 
26 

26 
26 
26 
26 
26 

26 
26 
26 
26 
26 

26 
26 
26 
26 
26 

26 
26 
25 
24 
24 
24 


24 
24 
24 
24 
24 

24 
24 
24 
24 
24 

24 
24 

24 
24 
24 

24 
24 
24 
24 
23 

23 
23 
23 
23 
23 

23 
23 
23 
23 
23 


23 
23 
22 
22 
22 

22 
22 
22 
22 
22 

22 
22 
22 
22 
22 

22 
22 
22 
22 
22 

22 
22 
21 
21 
21 

21 
21 
21 
21 
21 
21 


21 
21 
21 
21 
21 

21 
21 

22 

30 
32 
31 
31 

43 
38 
33 
32 
32 

33 
31 
29 
32 
53 

43 
43 


43 
43 
43 


55 
55 






73 
73 

72 
72 
72 

72 
72 
72 
72 
67 

62 
62 
62 
62 
62 

62 
62 
62 
62 
62 

62 
60 

58 

r? 

52 
52 
52 
52 
49 




46 
46 
46 
46 
42 

42 

42 
42 

42 
42 
40 
38 
38 

38 
38 
38 
38 
38 

38 
37 
36 
36 
36 

36 
36 
36 
36 
36 
34 


34 
34 
34 
34 
34 

34 
33 
32 
32 
32 

32 
32 
32 
32 
32 

32 
32 
32 
32 
32 

32 
32 
32 
32 
32 

32 
32 
32 
32 
32 
32 


32 


2 




(a) 
73 
73 
73 

73 
73 
73 
73 
73 

73 
73 
73 
73 
73 

73 
73 
73 
73 
73 

73 
73 
73 
73 
73 

73 
73 
73 
73 
73 
73 


32 


3 


32 


4 


32 


5 


(a) 

52 
52 
53 
53 
53 

53 
53 
53 
53 
53 

53 
•53 
53 
53 
53 

53 
53 
53 
53 
53 

53 
53 
53 






32 


6 






32 


7 






32 


8 .... 




. .. 


32 


9 






32 


10 






32 


11 






32 


12 






32 


13 






32 


14 . . . 






32 


15 






32 


16 






32 


17 






32 


18 . . 






32 


19 






32 


20 






32 


21 






32 


22... 






32 


23 






32 


24 






32 


25 






32 


26 . . .. 






32 


27 






32 


28 






33 


29 






38 


30 


53 

(a) 








40 


31 












1 







Note. — Fordaysonwhichno record is given, and not otherwise noted, the discharge was over 80 second- 
feet. 



17 
17 
18 
18 

18 



16.. 
17.. 

18.. 
19.. 
20.. 

21.. 
22.. 
23.. 
24.. 
25.. 
26.. 
27.. 
28.. 
29.. 
30.. 
31. 



38 


36 


30 


28 


24 


21 


43 


36 


29 


22 


19 


38 


34 


30 


28 


24 


22 


39 


36 


29 


22 


19 


38 


32 


30 


28 


24 


22 


35 


37 


29 


22 


19 


38 


32 


30 


28 


24 


24 


35 


39 


28 


22 


19 


38 


32 


30 


28 


24 


25 


35 


39 


28 


22 


18 


38 


32 


30 


28 


24 


82 


35 


33 


26 


22 


18 


38 


32 


30 


28 


24 


52 


35 


39 


26 


21 


18 


38 


32 


30 


27 


24 


48 


35 


39 


26 


21 


18 


38 


32 


30 


26 


24 




38 


39 


26 


21 


18 


38 


32 


30 


26 


23 




39 


39 


28 


21 


18 


38 


32 


SO 


26 


23 




39 


39 


26 


21 


17 


38 


32 


30 


26 


23 




39 


39 


26 


21 


17 


38 


32 


30 


26 


23 


78 


39 


39 


25 


21 


18 


38 


32 


30 


26 


23 


78 


39 


39 


25 


20 


18 


38 


31 


30 


26 


22 


73 


39 


39 


25 


21 


18 


38 


30 


30 


26 


22 


67 


39 


39 


24 


21 


18 


36 


30 


30 


26 


22 


58 


39 


37 


24 


21 


19 


36 


30 


30 


26 


22 


53 


39 


35 


24 


20 


18 


36 


30 


30 


26 


22 


48 


39 


34 


24 


20 


18 


36 


30 


30 


26 


22 


48 


39 


33 


22 


20 


19 


36 


30 


30 


25 


22 


43 


39 


33 


22 


20 


18 


36 


30 


30 


24 


22 


43 


39 


33 


22 


20 


18 


36 


30 


30 


24 


22 


43 


39 


33 


22 


20 


18 


36 


30 


30 


24 


22 


43 


39 


33 


22 


20 


18 


.36 


30 


29 


24 


22 


43 


39 


33 


22 


20 


18 


36 


30 


28 


24 


22 


43 


38 


32 


22" 


20 


18 


36 


30 


28 


24 


22 


43 


39 


31 


22 


20 


18 


36 


30 


28 


24 


22 


43 


39 


31 


22 


20 


18 


36 


30 


28 


24 


22 


43 


39 


31 


22 


20 


18 


36 


30 


28 


24 




43 


39 


30 


22 


19 


18 


38 





28 


24 





43 




29 




19 


17 



18 
18 
17 

17 
17 
17 
17 
17 

17 
17 
17 



17 
17 
17 
18 
18 
18 
18 
18 
18 
18 



a Discharge over 80 se 
Note. — Discharge interpolated July 23. 



3ond-feet at time of one daily observation. 
Discharge above 80 second-feet Mar. 9 to 12. 



314 SURFACE WATER OF PACIFIC SLOPE^ SOUTHERIs^ CALIFORNIA. 



Daily discharge, in second-fed, of Lytle Creeh near San Bernardino, Calif., for 1904^ 
i9i5— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1912-13. 
1 


18 
19 
20 
21 
21 

20 
20 
20 
20 
20 

20 
20 
20 
20 
20 

20 
20 
20 
20 
20 

20 
21 
21 
21 
21 

22 
22 
23 
23 
23 
23 


22 
22 
22 

22 
22 

22 
22 
22 
23 
23 

22 
23 
22 
22 
22 

22 
22 
22 
21 
21 

21 
21 
21 
21 

21 

21 
21 
21 
21 
22 


21 
21 
21 
21 

21 

21 
21 
21 
21 
21 

21 
21 
21 
21 
20 

20 
20 
20 

20 
20 

20 
20 
21 
20 

20 

20 
20 
20 
20 
20 
20 


19 
19 
19 
19 
20 

19 
19 
19 
20 

20 

19 
19 
19 
19 
70 

21 
27 
22 
22 
22 

22 
22 
21 
21 
20 

20 
19 
20 

20 
20 
20 


19 
20 
20 
19 
19 

20 
20 
24 

22 
22 

22 
22 
22 
22 

22 

22 
22 
21 
21 
21 

21 
21 
21 
47 

(a) 

47 
38 
35 


34 

34 
29 

28 
26 

26 
26 
26 
26 
26 

27 
29 
27 
27 
27 

26 

26 

. 26 

26 
26 

26 
25 
25 
24 
23 

23 

22 
22 
22 
22 
21 


22 
22 
22 
22 
23 

22 
22 
22 
22 

22 

22 
22 
22 
22 
22 

22 
22 
22 
22 
23 

22 
23 
22 
22 
22 

21 
22 
21 
22 
22 


22 
22 
22 
22 
21 

21 
21 
21 
20 

20 

20 
20 
20 
20 
20 

19 
19 
20 
20 
20 

19 

18 
19 
19 
20 

19 
20 
19 
19 
19 
19 


18 
19 
19 

18 

18 

18 
17 
17 
18 
17 

16 
16 
16 
16 
15 

15 
15 
15 
14 
14 

14 
13 
13 
14 
14 

14 
15 
14 
14 
13 


14 
13 
12 
13 
13 

12 
12 
12 
12 
11 

12 
11 
11 
11 
12 

11 
11 
11 
11 
11 

11 
11 
11 
10 
10 

11 
11 
11 
11 
11 
11 


9.8 
9.6 
9.6 
9.2 

9.4 

9.4 
9.2 
9.2 
9.1 
9.0 

8.8 
8.6 
8.4 
8.6 
8.5 

8.5 
8.5 
8.5 

8.4 
8.2 

8.2 
8.7 
8.0 
8.1 
8.0 

8.2 
8.3 
8.1 
8.2 
8.6 
9.0 


9.5 


2 


9.3 


3 


9.0 


4 


9.0 


5 


8.2 


6 


8.2 


7 


8,5 


8 


8.4 


9 


8.0 


10 


8.0 


11 


8.0 


12 


8.2 


13 


8.2 


14 


8.2 


15.. 


8.0 


16 . 


7.8 


17 


8.0 


18 


8.0 


19.. 


8.2 


20 


12 


21 


8.2 


22 

23 


8.5 
8.6 


24 


8.4 


25 


8.4 


26 


8.4 


27 


9.0 


28 


8.5 


29 


8.7 


30 


8.6 


31 









Note, — Discharge is mean of two observations daily except for Feb. 7, Mar. 26, and Sept. 3, 1913, when 
observations were made only in the morning. Discharge interpolated Dec. 4, 1912, and Mar. 14, 1913. 



1913-14. 
1 


9.1 
9.1 
9.4 
9.4 
9.3 

9.4 

9.1 
8.8 
9.0 
9.0 

9.0 
8.8 
9.1 
9.0 
9.1 

9.2 
9.1 
9.0 
9.0 
9.0 
9.0 
9.2 
9.2 
9.0 
9.0 
9.4 
9.5 
9.4 
9.4 
9.6 
9.5 


9.4 
10.6 
9.9 
9.6 
9.4 

9.5 
9.6 
9.8 
9.5 
9.5 

10.5 
11.7 
13.4 
12.0 
11.7 

11.4 
11.4 
11.1 

28 
21 

18.4 
17.7 
17.3 
17.2 
16.6 

16.3 
15.4 
16.2 
16.0 
16.3 


15.8 
15.2 
15.2 
15.4 
15.4 

15.7 
15.3 
15.3 
15.0 
14.7 

14.4 
14.4 
14.4 
14.4 
14.4 

14.2 
14.1 
13.9 
13.9 
13.9 
13.8 
18.6 
15.4 
14.6 
15.8 

14.8 
14.8 
14. 4 
14.2 
14.2 
14.4 


14.4 
14.2 
14.0 
14.0 
14.0 

14.2 
14.2 
14.4 
14.5 
14.2 

14.2 
14.0 
13.9 
13.8 
33 

42 
28 
1,260 
264 
52 
52 
52 
48 
53 
113 

"432"'" 
173 
103 
83 

83 


83 
83 
83 
83 
83 

83 
83 
83 
73 
63 

63 
62 

57 
53 
5:3 

53 
53 
626 
373 

400 
1,200 
800 
400 
300 
300 
300 
300 


423 
403 
333 
373 

2Q8 

223 
183 
163 
142 
142 

123 
112 
103 
109 
103 

103 
98 
93 

93 
93 
92 
92 
92 
87 
82 
82 
82 
82 
83 
82 
72 


73 
73 
73 
73 
73 

73 
73 
73 
73 
73 

50 

50 
50 

45 
40 

40 
40 
40 
40 
40 

40 
40 
40 
40 
40 
40 
40 
40 
40 
40 


40 
40 
40 
40 
40 

40 
63 
63 
63 
63 

63 

63 
63 
63 
63 

63 
63 
63 

63 
57 

58 
58 
58 
58 
58 

55 
53 
53 
53 
53 
53 


53 
53 
53 
53 
53 

53 
53 
53 
53 
53 

53 
53 
53 
53 
53 

53 
53 
53 

50 

47 

47 
47 
47 
47 
47 
47 
47 
45 
43 
43 


43 
43 
43 
43 
43 

44 
45 
45 
46 
46 

47 
46 
46 
47 
49 

49 
49 
49 

49 
49 
49 
49 
48 
48 
48 

48 

. 48 

48 

48 


48 
48 
48 
48 

48 

48 
49 
48 
48 
48 

48 

48 
48 
49 
48 

48 
48 
48 

48 
48 

4S 
4S 
48 
4S 
48 

48 
48 

48 
48 
48 
48 


48 


2 


48 


3 


47 


4 


47 


5 


48 


6 


46 


7 


46 


8 


45 


9 . 


44 


10 


44 


11 


44 


12 


44 


13 


44 


14 


44 


15 


43 


16 


42 


17 


42 


18 


42 


19 


42 


20..... 


41 


21 


40 


22 


40 


23 


40 


24 


40 


25 


39 


26 


38 


27 


38 


28.. 


38 


29 


38 


30 


37 


31 









a Discharge more than 80 second-feet. 
Note.— Discharge Nov. 4, Dec. 10, and Mar, 5 interpolated. Floods of Jan. 26 and Feb. 20 extremely 
severe; no record obtained. 



Daily discharge^ in second-feet, ■&/ Lytle Cr&eh near 8 an Bernardino, Calif., for 1904^ 
lots — €'0'mtinued. 



May. 



Jtny. 



Aug. 



36 
38 



36 

36 



36 

36 
36 



36 
36 



36 
36 



36 
36 



34 
34 



34 
34 
34 



34 
34 
34 
34 



34 
34 
34 
33 

32 

32 

32 
32 
32 
32 



32 
32 
32 
32 
32 

32 
32 
32 
32 
32 

32 
32 
32 
32 
32 

32 
47 
37 
35 
37 

39 
39 
39 
37 
35 

35 
35 
35 

34 
33 



33 
31 



31 
31 
31 
31 



30 
30 
30 



27 
27 
26 
25 



25 
27 



43 
323 



53 
53 
53 
343 
253 



73 
73 
73 
73 
63 



03 
63 
63 



63 
63 
63 
63 
63 

63 
63 
03 
63 
47 

47 
47 
47 
47 
47 

47 
47 
47 
47 
47 
47 



47 
47 
47 

47 
47 

47 
47 

47 

45 
43 
43 
43 
43 

43 
43 
43 
43 
42 



42 
42 

42 
43 
43 
43 
43 



43 
43 

43 
43 
43 
43 
43 

43 
43 
43 
43 
43 

43 
43 
43 
43 
43 

43 
43 
43 
43 



42 
42 
42 
42 
42 



42 
42 
42 
42 
42 



42 

42 



42 
42 
42 
42 
42 

42 
42 
42 
42 
42 



42 
42 
42 



42 
42 
42 



42 
42 
42 



42 
42 
42 



44 
45 



45 

45 
45 
45 



45 
45 

44 



40 
40 



37 
36 
36 
36 
36 



36 
36 
36 
36 
35 

34 
34 
34 
34 
34 

34 
34 
34 
34 
33 
32 I 



32 
32 
32 
32 
32 

32 
32 
32 
32 
32 



32 
32 
32 

32 
32 
32 
32 
32 



32 
32 
32 



32 
32 



32 
32 
32 
63 



32 
32. 
32 



32 
44 
33 

32 
32 
32 
32 
32 

32 
30 

28 
28 
28 

28 
28 
28 
28 
28 
28 



33 

37 
38 

35 
34 
32 



50 
50 
55 



95 
3,000 
4,750 
1, 000 
1,000 

1,000 
600 
600 
600 
600 

600 
4,000 
400 
400 
400 
400 



350 
200 
200 
180 
160 

160 
160 
140 
120 
120 

120 
■110 
100 
100 
•100 

100 
100 
100 
100 
100 

100 
100 
100 
100 
100 



110 

120 



120 
120 
110 
100 
130 

120 
120 
110 
100 
100 

100 
100 
100 

95 
90 



90 
95 

120 

130 
140 
145 
140 
140 

135 
125 
120 
115 
110 
110 



110 
110 
110 
110 
110 



95 
100 
100 

100 
140 
130 
120 
120 

140 
140 
140 
140 
140 

140 
140 
140 
140 
130 

120 
100 
100 
100 
95 



50 
50 
50 



70 
75 
60 
60 



60 
60 



57 
56 



56 

66 



56 
56 
56 
53 
50 



43 

42 
42 



42 
42 



42 
42 

42 
40 
40 
40 
40 



40 
40 
40 



38- 
38 
38 
38 



38 
38 i 



38 ; 
38 ' 
38 



3a 

36 I 
36 : 
36 : 



33 
36 
36 
36 
36 

36 
36 
36 
36 



36 
36 
36 

36 
36 
36 
36 
35 



34 
34 
34 



34 
34 
34 
33 
32 



316 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. * 

Daily discharge, in second-feet, of Lytic Creel near San Bernardino, Calif, for 1904- 
1918— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


191&-17. 
1 


38 
45 
75 
65 
60 

95 
65 
60 
60 
60 

55 
50 
50 
50 
50 

50 
50 
50 
50 
45 

40 
40 
40 
40 
40 

40 
40 
40 
40 
40 
40 

22.1 
22.2 
22.2 
22.2 
22.2 

22.2 
22.2 
22.2 
22.2 
22.2 

22.2 
22.2 
22.2 
22.2 
22.2 

22.2 
22.2 
22.2 
22.2 
22.2 

22.2 
22.2 
22.2 
22.2 
22.2 

22.2 
22.2 
22.2 
22.2 
22.2 
22.2 


40 
40 
40 
40 
40 

40 
40 
37 
34 
34 

34 
34 
34 
32 
32 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

22.2 
22.2 
22.2 
22.2 
22.2 

22.2 
22.4 
22.2 
22.2 
23.5 

23.7 
24.1 
23.4 
23.4 
22.8 

22.8 
22.2 
22.4 
23.0 
22.8 

22.8 
22.6 
22.6 
22.8 
22.7 

22.8 
22.6 
22.9 
23.0 
23.1 


30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 

30 

30 
30 
32 
230 
80 

55 
50 
50 
50 
40 
40 

22.6 
22.6 
22.4 
22.5 
22.2 

22.2 
22.6 
22.1 
23.9 
22.2 

22.2 
22.2 
22.2 
22.2 
22.2 

22.2 
22.2 
22.1 
22.2 
22.2 

22.2 
21.1 
18.6 
018.9 
19.1 

18.8 
17.2 
18.8 
22.1 
22.2 
22.2 


40 
40 
40 
40 
40 

40 
40 
40 
40 
40 

40 
40 
36 
32 
32 

40 
40 
40 
45 
40 

40 
40 
40 
40 
40 

40 
40 
38 
36 
36 
36 

22.2 
21.9 
23.4 
22.2 

22.2 

22.2 
22.1 
22.0 
22.1 
21.8 

22.2 
22.2 
19.9 
22.3 
22.1 

22.0 
22.0 
22.0 
21.4 
20.7 

21.2 
21.4 
21.4 
20.8 
21.0 

19.6 
21.8 
21.4 
21.4 
21.4 
22.3 


36 
36 
34 
32 
32 

31 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
36 
41 
40 
50 

55 
60 
70 
55 
130 

65 
55 
50 

22.0 
22.0 
22.0 
21.7 
21.6 

21.8 
15.7 
22.2 
22.5 
22.4 

22.1 
21.8 
18.6 
16.3 
16.2 

20.0 
20.0 
19.5 
20.3 
19.3 

22.6 
22.2 
29.7 
22.6 
22.8 

21.8 
43.4 
39.4 


50 
50 
60 
45 
40 

40 
40 
38 

38 
38 

40 
40 
36 
36 
36 

36 
36 
34 
32 
32 

32 
32 
32 
32 
32 

30 
30 
30 
30 
30 
30 

32.6 
33.8 
30.8 
28.8 
29.6 

46.5 
62.0 

346 

147 

300 

650 
550 
321 
222 
153 

122 
112 

80 
80 
80 

102 
87 
82 
60 
60 

60 
60 
60 
60 
60 
60 


32 
32 
32 
32 
32 

32 
32 
32 
32 
32 

32 
32 
32 
32 
32 

36 
36 
34 
32 
32 

32 
32 
32 
32 
32 

32 
32 
32 
33 
32 

60 
60 
60 
60 

55 

50 
50 
50 
50 

67 

62 
62 
62 
62 
62 

62 
62 
62 
62 
62 

62 
62 
62 
62 
62 

62 
62 
62 
62 
62 


32 
32 
22 
32 
32 

32 
32 
32 
28 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 
30 

34 
34 
34 
34 
34 

34 
34 
34 
34 
34 

34 
34 
34 
34 
34 

34 
62 
34 
34 
34 

34 
34 
34 
34 
34 

34 
34 
34 
34 
34 
34 


29 
28 
28 
28 
28 

28 
28 
28 
28 
28 

28 
27 
25 
24 
23 

22 
22 
22 
22 
21 

22 
22 
22 
22 
21 

22 
21 
21 
22 
22 

34 
34 
34 
34 
34 

34 
33 
32 
32 
32 

32 
32 
32 
32 

32 

32 
32 
32 
32 
32 

32 
32 
32 
32 
30 

30 

29.7 

29.7 

29.8 

29.8 


22 
21 
21 
21 
21 

20 
20 
21 

20 
20 

20 
20 
20 
20 
20 

20 
19 
19 
18 

18 

18 
18 
17 
18 
17 

18 
18 
18 
20 
20 
20 

29.8 
29.8 
29.8 
29.8 
29,8 

29.8 
29.8 
29.8 
29.8 
29.4 

29.0 
29.0 
29.0 
28.8 
28.6 

28.6 
28.6 
28.6 
28.6 
28.6 

28.6 
28.6 
28.6 
28.6 
28.6 

28.6 
28.6 
28.6 
28.6 
28.6 
28.6 


20 
20 
20 
19 
20 

20 
20 
20 
20 
20 

21 
21 
21 
20 
20 

20 
20 
19 
20 
20 

20 
20 
20 
20 
20 

20 
20 
19 
20 
19 
22 

28.6 
28.6 
28.6 
28.6 
28.6 

28.6 
28.6 
28.6 
28.6 
28.6 

28.6 
28.6 
28.6 
28.6 
28.6 

28.6 
28.6 
28.6 
28.6 
28.6 

28.6 
28.6 
28.6 
28.6 
28.6 

28.6 
28.6 
28.6 
28.6 
28.6 
28.6 


21 
21 
22 


2 


3 


4 . ... 


22 


5 


22 


6 

7 


22 

22 


8 


22 


9 


22 


10 


22 


11 


22 


12 


22 


13 


22 


14 


22 


15 


22 


16 


22 


17 


22 


18 


22 


19 


22 


20 


22 


21 


22 


22 


22 


23 


22 


24 


22 


25 


22 


26 


22 


27 


22 


28 


22 


29 


22 


30 


22 


31 




1917-18. 
1 


28.6 


2 


28.6 


3 


28.6 


4 


28.6 


5 


28.6 


6 .■ 


28.6 


7 


28.6 


8 


28.6 


9 


28.6 


10 


28.6 


11 


28.6 


12 


28.6 


13 


28.6 


14 


28.8 


15 


28.8 


16 


29.1 


17 


28.9 


18 


28.6 


19 


28.6 


20 


28.6 


21 


28.6 


22 


28.6 


23 


28.6 


24 


28.6 


25 


28.6 


26 


28.6 


27 


28.6 


28 


28.6 


29 


28.6 


30 


28.6 


81 









a Interpolated. 



Monthly 



SANTA ANA RIVER BASIN. 317 

of Lytle Creek near San Bernardino, Calif., for 1904-1918. 



1904. 
September 18-30. 

1904-5. 

October 

November 

December 

January 

February 1, 7-15, 

16-28 

March 1-11, 20-31.. 

April 

May 

June 

July 

August 

September 

1905-6. 

October 

November 

December 

January 

February 

March 1-11 

April 13-30 

May 

Juue 

July 

August 

September 

1906-7. 

October 

November 

December 1-11, 
16-27, 29-31.... 

January 1-8 

February 

March 

April 

May 

June 

July 

August 

September 4-30.. 

1907-8. 

October 

November 

Decem.ber 

January 1-23 

February 17-29.. 

March 

April 

May 

June 1-6, 8-30.... 
July 1-6,9-31.... 
August 1-5, 7-31. 
September 

1908-9. 

October 

November 

December 

Januaryl-20,26-31 

February 1-6 

March 6-31 

April 

May 

June 

July 

August 

September 



Discharge in second- 
feet. 



Maxi- 
mum. 



75 
50 
43 
34 



42 
40 
44 
25 
29 
73 
65 
55 
57 
51 
47 



69 

74 
(o) 
(a) 
(o) 
(a) 
(a) 
(a) 
(a) 
70 



65 
60 
69 
55 
60 



50 
30 
22 
20 



60 
43 



43 
43 



Mini- 
mum. 



5.1 
8.0 
9.3 
11 



(«) 
(a) 
(a) 

(«) 
(a) 
(a) 
(^) 
60 



37 
29 
29 

35 



7.93 
8.71 



37.5 
46.1 
42.2 
37.0 
31.1 
26.6 
30.0 
36.3 



38.2 
39.5. 
34.5 
27.9 
24.0 
24.6 
68.6 
58.7 
48.9 
52.3 
49.4 
45.0 



40.2 
37.8 



53.5 
44.7 
40.7 
60.0 
54.0 
50.0 
44.8 
26.0 
20.6 
19.2 
20.3 



22.2 
22.0 
24.7 
27.9 
40.8 
46.3 
43.0 
43.0 
37.2 
30.2 
32.5 
35.7 



Run-off 
(total in 
acre- 
feet). 



488 
518 



1,640 
2,100 
2,510 

2,280 
1,850 
1,640 
1,840 
2,160 



2,350 
2,350 
2,120 
1,720 
1,330 
537 
2,450 
3,610 
2,910 
3,220 
3,040 



2,470 
2,250 



2,890 
1,090 



3,700 
3,180 
2,750 
1,860 
1,550 
3,320 
2,980 
2,750 
1,500 
1,180 
1,140 
1,210 



1,360 
1,310 
1,520 
1,440 
486 
2,390 
2,560 
2,640 
2,210 
1,869 
2,000 
2,120 



1909-10. 

October 

November 

December 3-8, 

10-11,13-30.... 
January 19-31... 

February 

March 

April 

May 

June 

July 

August 

September 1-6, 

8-30 



1910-11. 

October 

November 

December 

January 1-9, 11, 

14,16-27,30... 
February 1-3, 

6-28 

March 

April 

May3-31 

June 

July 

August 

September 



1911-12. 

October 

November... 
December . . . 

January 

February 

April 

May 

June 

July 

August . 



1912-13. 

October 

November. . . 
December . . . 

January 

March 

April 

May 

June 

July 

August 

September.. 

1913-14. 

October 

November. . . 
December . . . 

March 

April 

May 

June 

July 

August 

September. . . 

1914-15. 

October 

November. . . 
December . . . 



Discharge in second- 
feet. 



Maxi- 
mum. 



37 
39 



63 
61 
61 
35 
31 
31 
30 
30 



27 
24 



53 
(") 
(«) 



34 
40 



38 
36 
30 



39 
29 

22 
19 

18 



23 
23 
21 
70 
34 
23 
22 
19 
14 
9.8 
12 



9.6 
26 
18.6 
423 
73 
63 
53 



Mini- 
mum. 



30 
23 
30 

28 



43 
55 
(«) 
73 
49 
34 
32 
32 



36 
30 
28 
24 
22 
35 
29 
22 



21 
20 
19 
21 
21 
18 
13 
10 



9.4 
13.8 

72 
40 
40 
43 
43 
48 
37 



36 
32 
32 



33. 5 
34.1 

36.1 
62.2 
61.0 
37.4 
32.7 
30.9 
29.6 
30.0 
29.2 

27.3 



26.0 
23.6 
21.8 

31.1 

51.8 
(a) 
(a) 
73.0 
64.5 
39.5 
32.4 
32.5 



37.0 
31.2 
29.6 
25.8 
22.8 
38.3 
35.6 
24.6 
20.6 
18.1 
17.4 



20.6 
21.7 
20.5 
21.9 
25.9 
22.0 
20.0 
15.6 
11.5 



^.53 



9.16 
13.5 
14.8 
150 
52.2 
55.7 
50.4 
46.8 
48.1 
42.6 



36 

33.7 

34.3 



* Discharge greater than 80 second- feet . 



318 SURFACE WATER OE PACIFIC SLOPE, SOUTHER:Kr CALIFORNIA. 

Monthly discharge of Lytle Creek near San Bernardino, Calif., for 1904-1918 — C'ontirxiied. 



1914-15— Con. 

Jauuaxy 

February 

March 

April 

May 

June 

July 

Avigust 

September 

The year . . 

1915-16. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

Sepi ember 

The year . . 

1916-17. 

October 

November 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



323 
372 
63 



40 
32 
63 
4,750 
350 
145 
140 
90 
50 
40 



100 
90 
95 
50 
40 
36 
32 
30 



43.5 
103 
56.8 
44.2 
42.8 
42.0 
43.8 
4.5.0 
43.9 



47.0 



35.7 
32.0 
32.2 

650 

133 

113 

119 
61.9 
43.6 
37.5 
35.2 



50.4 
33.4 



Run-off 
(total in 
acre- 
feet). 



2,670 
5,720 
3,490 
2,630 
2,630 
2,500 
2,690 
2,770 
2.610 



34,000 



2,200 
1,900 
1,980 
40,000 
7,650 
6,950 
7,080 
3.810 
2^590 
2,310 
2,160 
1,810 



80,400 



1916-17. 
December...... 

January 

February. ...... 

March 

April 

May 

June 

July 

August 

September 

The year . . . 

1917-18. 

October 

November 

December 

January 

February 

March 

April 

M».Y 

June 

July 

August 

September 

The year . . . 



Discharge in second- 



Maxi- 
mum. 



1.30 
50 
36 
32 
29 
22 



22.2 
24.1 
23.9 
23.4 
43.4 
6.50 
67 
34 



Mini- 
mam. 



32 
30 
30 
32 

28 
21 



22.1 

22.2 

17,2 

19.6 

15.7 

28.8 

50 

34 

29.7 

28.6 

28.6 

28.6 



15.7 



Run-oS 

(total in 
acre- 



41.5 
39.1 
43.1 
36.4 
32.4 
30.5 
24.5 
19.5 
20.0 
21.9 



32.7 



22.2 
22.7 
21.6 
21.7 
22.6 
135 
60.1 
34.0 
32.0 
29.0 
28.6 
28.6 



2,550 

2,400 

2,390 

2,240 

1,930 

1,880 . 

1,460 

1,200 

1,230 

1,300 



23,700 



1,370 
1,350 
1,330 
1,330 
1,260 
8,300 
3,580 
2,090 
1,900 
1,780 
1,760 
1,700 



27, { 



Note.— All tables of monthly discharge computed by U. S. Geological Survey. 
SAH JACINTO KIVEH ITEAR ELSnSTOEE, CAMF. 

Location. — Near east line sec. 9, T. G S., R. 4 W., about 2| miles above junction with 

Elsinore Lake (lov/- water stage), one-fourth mile above highway crossing, and 2 

miles southeast of Elsinore, Riverside County. 
Drainage area.— -717 square miles (measured on topographic maps); 718 square 

miles at original gage at railway bridge. 
Elevation. — About 1,300 feet above sea level. 
Records available. — January 1, 1916, to September 30, 1918, 
Gage. — Vertical staff in two sections fastened to trees on right bank about one-fourth 

mile above highwaj?' crossing; installed February 13, 1916. Original gage was 

a vertical staff fastened to trestle bent of Atchison, Topeka & Santa Fe Railway 

bridge near left bank about three-fourths of a mile below present site. 
Discharge measurements. — Made from railway bridge three- fourths of a mile below 

gage or by wading. 
Channel and control. — Gravel and small boulders; fairly permanent. There is 

but one channel at all stages and high-water banks are clean. January 30, 1916, 

backwater from Elsinore Lake reached original gage at railway bridge. Present 

gage is well above influence of backwater. 
Extremes oe discharge. — 1916-1918: Maximum stage recorded, 19.0 feet, on 

original gage, at 11 a.m. January 28, 1916 (discharge, 14,000 second-feet); no flow 

for several months each year. 
Diversions. — The Temescal Water Co. diverts water for irrigation above the station. 

V/ater is also diverted above San Jacinto for irrigation. Water is pumped from 

wells in Ferris Valley for irrigation. 



SANTA A:KrA RIVBE BASI3<T. 



819 



R.EauLATiON. — Water is stored for irrigation at Hemet reservoir on South Fork of San 
Jacinto River. 

Accuracy. — Stage-discharge relation permanent at present site. Rating curve for 
new gU;ge ia well defined ; for original gage somewhat approximate as it was deter- 
mined only by point of zero flow, two medium-stage measurements and maximum 
discharge computed from cross sections and slope data. Gage usually read to 
hundredths nearly every day except during low water. Dail^- discharge ascer- 
tained by applying gage height to rating table. For days when gage was not 
read discharge was interpolated. Records good for medium and low stages; fair 
for high water. 

Discharge measurements of San Jacinto River near Elsinore, Calif., for 1916-1918. 



Date. 


191 


6. 


Jan. 


2r> 




'?,\\ 


1^'eb. 


T^ 




?A 


Mar. 


9 




10 




2\ 


Apr. 


10 




2>< 


May. 


6 




2« 


19: 


7 


Jan. 


17 



F. C. Ebert 




do... 

do... 

do... 

do... 

do 






.....do... 

do... 

do... 

do... 







McGlashan and Ebert. 
F.C. Ebert 



Gage Dis- 
heiglit. charge. 



Feet, 
a 10. 40 
a 10. 32 
8.40 
2.97 
3,30 
3.20 
2.74 
2.37 
1.83 
1.42 
1.38 

1.19 



Sec. -ft. 

680 

651 

376 

236 

349 

324 

180 

115 
32 
9.3 
5.4 

1.3 



1917. 

Feb. 13 

24 

Mar. 7 

16 

27 

Apr. 21 

May 20 

Dec. 20 

1918. 
Mar. 5 

17 



Made hy- 



F. C. Ebert 

....do 

....do 

....do 

....do 

McGlashan and Ebert. 

F.C. Ebert 

....do 

....do 

....do 

....do 



Gage Dis- 
height. charge. 



Feet. 
1.16 
1.68 
2.33 
2.02 
1.33 
1.27 
1.09 
1.19 



1.17 
1.98 
2.00 



Sec.-ft. 
0.9 
19 
95 
47 
4.7 
2.7 
.4 



a Original gage at railroad bridge. 
Daily discharge, in second-feet, of San Jacinto River near Elsinore, Calif, for 1916-1918. 



Date. 



21. 

22., 
23. 
24.. 
25., 

2C.. 
27., 
28., 
29., 
30.. 
31., 



Nov. Dec. Jan, 



2 
3 
3 

3 

2 
2 
2 
2 

2 

730 

830 

1,760 

0,800 

1,750 

1,010 

580 

680 

730 

580 
1,010 
14, 000 
6,800 
ol, 750 
ol, 350 



al, 170 
a 1,120 



agio 
o730 
G060 
610 
a 570 

a 510 

O430 

387 

350 

350 

315 
315 

282 
251 
251 

251 
251 
251 
223 
223 

223 
251 
251 
251 



315 
350 
350 
350 
350 

315 

350 
425 
350 
315 

282 
251 
251 
223 
223 



195 
169 

146 

158 

169 
195 
251 
251 
350 

332 
315 
J* 283 
251 
223 
195 



Apr. 



6 34 

29 

S2 

b2S 

6 25 



May. 



9.5 
9 



6.5 

6. 5 
6 



4 

2.8 
6 2.2 



June. July. 



1.6 
1.5 
1.4 
1.0 



Aug. 



60.0 

b .0 

.0 

6.0 

6.0 

6 
6.0 
.0 
.0 



3.5 
6 3.8 
6 4.0 
6 4.3 

4.6 

2.6 
6 2.4 
6 2.1 
61.8 

1.6 
6 1.6 



Sept. 



61.5 
6 1.5 
61.4 
61.4 
61.3 

61.3 
1.2 
6 1.2 
6 1.2 
6 1.2 

6 1.3 
6 1.3 
1.3 
61.3 
6 1.2 

6 1.1 

6 1.0 



6.9 
6.9 
6.9 
6.9 



I Estimated, backwater at gage. 



6 Gage not read, discharge interpolated. 



320 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of San Jacinto River near Elsinore, Calif., for 191&- 
1918— Gontmued. 



Date. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1917. 
1 






1.6 

2.1 

2.1 

a 2. 2 

a 2. 2 

2.3 
o2.2 

2.1 
«1.8 

1.6 

1.6 
2.6 
2.1 
a 2. 4 
2.6 

a 2.0 
1.5 
2.6 
15 
10 

olo 
20 
15 
10 

6.5 

4.6 
3.5 
o3.5 
3.5 
2.6 
2.1 

1.2 
61.2 

1.2 
61.3 

1.4 

61.4 
1.4 
1.4 

61.4 
1.4 

1.6 
61.3 
61.0 

.7 
.5 

.6 
.5 

6.5 
.5 

6.5 

6.6 
.6 

6.6 
.6 

,7 

2.1 
62.1 
62.1 
2.1 
1.6 
1.2 


2.1 
2.1 
1.6 
a 1.5 
1.4 

1.4 
1.4 
1.4 
1.4 
1.4 

1.4 
1.4 
1.4 
1.2 
1.4 

1.2 
a 2. 9 
4.6 
6.5 
11 

11 

11 

15 
' 30 
a 74 

119 
126 
alio 


94 
84 
80 
a 82 
84 

84 
94 
66 
58 
a 58 

58 
58 
58 
58 
a 56 

53 
a 49 
a 45 

42 

40 

38 
36 
35 
33 
a 19 

5 

4.6 
4.0 
5 

2.6 
a 20 

1.2 
1.2 

6.8 
.4 
.4 

C2.0 
C4.0 
6.5 

c20 

c40 

61 
750 
750 
705 
266 

158 

49 

31 
6141 
251 

146 

51 

47 

46 
627 

8.5 
6.5 
63.6 

.7 
6.6 
C.5 


a 40 
58 
63 
27 
25 

10 

8 

a 7. 5 

7 

3.0 

2.6 
1.6 
1.6 
6.5 
a 12 

17 
16 

6 
10 

3.5 

6.5 
4.6 
o7 
9.5 
9.5 

a8 

7 

8 

a 20 

32 

0.5 
.4 
.4 

6.4 
.4 

6.4 
.4 

6.4 
.3 

6.2 

.2 
6.2 

:l 

6.2 

.2 

6.4 
.6 

6.4 
,3 

.3 
.2 

6.2 
.2 
6,2 

.2 

6.2 

6'. 2 
.2 


35 
21 
a 12 
2.6 
a 2.0 

1.4 
16 
3.0 
a 2. 2 
1.4 

1.4 

1.4 

a 1.1 

a. 8 
.5 

.5 
«. 4 
.4 
.4 
.5 

.5 
.5 
.5 
a. 6 
a. 6 

.7 

'.2 

.9 

al.2 

1.6 

60.2 
.2 

b.2 
6.2 

.2 
6.2 
.2 
.2 
.2 

6.2 
6.2 
6.2 

'.2 

b'.2 
6.2 
6.2 
.2 

'.2 

6.2 
.2 
6.2 

.2 

6.2 
.2 
.2 
6.2 
6.2 


1.4 
1.3 

1.2 

.9 

«1.0 

1.2 
a 1.0 

.7 
«.6 
,4 

.5 
.4 
a. 3 
a. 3 
.2 

a.l 
.0 

o.O 
.0 

«.0 

.0 
.4 

a. 4 
.4 

a. 4 

.3 
.2 

a. 4 
.7 

a. 6 

0.2 
.2 
.2 
.2 
.2 

.2 
.1 
.1 


0.4 
0.2 

.0 
a.O 

.0 

.0 
.0 
a.O 
.0 
.0 

a.O 
o.O 
a.O 

l-.t 

a.O 
a.O 
o.O 
o.O 
o.O 

o.O 
o.O 
o.O 
o.O 
o.O 

o.O 

o.O 

.6 

a3.4 

.7 
.4 


O0.3 
0.2 
.1 




2. 








3 








4 








5 










6 










7 










8 










9.. 










10 










11. 










12 










13.. 










14 










15 










16 










17... 




. 






18 










19 











20.. 


. 








21... 










22 











23=.... 










24.. 










25 










26. 










27 










28.. 










29 










30 












31. 












1917-18: 
1 




0.3 

6.4 
.4 
.4 

.4 

A 
6.4 

.4 
6.4 

.4 

.5 
6.5 
.5 
.5 

6.5 

6.6 

6.7 
.7 

6.7 
.7 

.7 
.7 
.7 
61.0 
1.2 

1.2 
1.2 
61.2 
1.2 
1.2 
1.2 


1.6 
1.6 
61.5 
61.3 
1.2 

1.2 
1.6 

61.5 
1.4 

61.5 

1.6 
1.6 

61.6 
1.6 

61.6 

1.6 
63.3 

5 
63.5 

2.1 

1.6 
61.6 

1.6 
61.6 

1.6 

1.0 
61.5 
61.3 






2 










3 










4 










5 










6 










7 










8... 










9 










10 












11 












12... 












13 


0.2 

h.2 
.2 

.2 

&.2 
6.2 
.2 
6.2 

.3 

6.3 
.3 

6.3 
.3 

6.3 
.3 

6.3 
.3 

6.3 










14 










15... 










16 




■ 






17... 










18 










19 










20... 










21 










22... 










23. 










24 










25... 










26 










27 











28 










29 










30 












31 




























a Gage not read, discharge interpolated. 6 Interpolated. 

Note.— River dry on all days for which no discharge is given. 



SANTA ANA RIVER BASIN. 321 

Monthly discharge of San Jacinto River near Elsinore, Calif., for 1916-191 S. 



Month. 


Discharge in second-feet. 


Run-off 
(total in 


Maximum. 


Minimum. | Mean. 


aere-feet). 


1916. 
JanTiary 


14,000 
1,170 
425 
188 
21 
1.6 
.3 
10 
1.5 


2 1. 300 


79.900 


Februai y 


223 
146 
25 
2.2 

!o 

.0 
.9 


482 
270 
87.9 
7.00 
.39 
.15 
3.40 
1.11 


27,700 


March 


16,600 


April 


5,230 


May. 


464 


June 


23 


July 


) 


Aui?ust 


209 


September 


60 






The period 








130,000 












1910-17. 
January 


20 
126 
94 
63 
35 
1.4 
6 
.3 


1.5 
1.2 
2.6 
1.6 
.2 
.0 
.0 
.0 


4.80 
19.5 
48.5 
14.6 
3.60 
.510 
.358 
.019 


295 


February 


1,080 


March 


2,980 


April 


869 


May . 


221 


June 


30.3 


July 


22.0 


August 


1.2 






The year. 


126 


0.0 


7.60 


5,500 






1917-18. 
November 


.3 
1.2 
2.1 
5 
750 
.6 
.2 
.2 


.0 
.3 

d 

.4 

.2 
.2 
.0 


.15 
.09 
1.14 
1.80 
115 
.29 
.20 
.05 


8.9 


December 


42.4 


January 


70.1 


Febniary 


100' 


March..... 


7,070 


April 


17.3 


May 


12.3 


Ju«e 


3.0 


The year 


750 


.0 


10.2 


7, .320 











Note.— No Aoav in months for which record is not given. 



ELSINORE LAKE AT ELSINORE, CALIF. 

Location, — A short distance southeast of outlet, at Elsinore, Riverside County. 

Records available. — December 1, 1915, to September 30, 1918. 

Gage, — Vertical staff in several sections on northeast shore of lake, a short distance 
above outlet. The temporary staff, read January 31 to February 13, 1916, was 
destroyed before it could be referred to gage datum. May 10, 1918, gage datum 
was raised 0.06 foot. Add 1,200 feet, to published elevations, to reduce to mean 
sea level. 

History. 1 — Apparently the earliest specific reference to the amount of water in Elsi- 
nore Lake is contained in the notes of a traveler through southern California 
about 1810, who mentions "Laguna Grande," the original Mexican name for the 
lake, as being little more than a swamp about a mile 1 ong. For the period between 
that time and 1 862 data as to its rise and fall are not available, but in 1862 it was 
very high and probably overflowed. During the succeeding dry period, especially 
during the years 1866 and 1867, when practically no rain fell on the drainage area 
tributary to the lake, it receded very rapidly, but was full again in 1872 and over- 
flowed down its outlet through Temescal Canyon. After this it again evaporated 
to a level probably as low as it has ever been since, but the great rains of the 
winter of 1883-81 filled it to ovei*flowing in three Aveeks. 

• Prepared by Francis R. Schanck, assistant inspector of irrigation, United States Indian Service, Los 
Angeles, Calif. 

142131°— 21— wsp 447 21 



322 STJEEACE WATER OF PACIPIC SLOPE j SOUTHERN CALIFORNIA. 

Americans had settled around it by this time and their descriptions of condi^- 
tions say that large mllow trees surrounding the low-water shore line were of 
such si:^e that they must have been 30 or more years old. The rainfall in the 
next 10 years was excessive, and the lake stayed high and overflowed naturally 
during three or four years of the decade. It was purchased by the Temescai 
Water (b. for the irrigation of lands at Corona, Calif., and its outlet channel was 
deepened, permitting gravity flow to Corona for a year or more after the lake 
level had sunk below the elevation of its outlet. As the surface still receded a 
pumping plant was installed and the water was raised a maximum of about 10 
feet and then flowed down the natural channel of Temescai Canyon. Pumping 
was continued a couple of seasons, but the concentration of salts in the lake, 
due to the evaporation and low rainfall, soon made the water unfit for irrigation. 

After 1893 the level sunk almost continuously for nearly 10 years, ivith, 'A 
course, a slight rise every winter. The heavier precipitation beginning in 1 903, 
gra,dually filled the lake about half the depth between its minimum level since ^ 
1883 and its high level or overflow point. The flood of January, 1916, rapidly 
raised the level to overflowing, although the run-off from its drainage area int:^ the 
lake appears to have been considerably less than that of the wet years of 1883- 
84 and 1888-89. 

The fact that large trees were growing 20 feet or more below the high-vv-ater 
level when the lalje filled in 1883-84 indicates that the high water of the sixties 
and seventies must have been of very short duration. The stumps of the trees 
Vv^ere still visible in 1888 and 1889 many hundred feet from shore, 'out bj^ the time 
the lake receded in the middle nineties these had disappeared. 

Daily elevations, in feet ^ af Elsinore Lake at Elsinore, Calif., fcr 1915-19 IS. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1315-16. 
• 







45.2 


45.4 
45.3 
45.3 
45.3 
45.3 

4.5. S 
45.3 
45.3 
45.4 
45. 4 

45.4 
45.4 
45.4 
45.4 
45.4 

45.4 
46.7 
47.2 
48.7 
50.2 

51.2 

52.2 
52.7 
62.-9 
53.2 

54.0 
54.5 
55.5' 
57.5 
58.5 
O22.0 


022.2 
a22.5 
22.8 
O23.0 
a 23. 3 

023.5 
C23.5 
«23. 7 
«23. 9 
a2L\ 

fl24.2 

B24.4 

«24. 5 : 

03.5 

63.6 

63.9 
63.8 
63.8 
§3.9 
63.9 

63.9 
64.0 
64.1 
64.2 
64.2 

64.3: 
64.3 
64. 3 
64.4 


64. 5 : 
64.5 
64.6 
64.7 
64.8 

64.9 
65.0 
65.1 
65.2 
05.2 

65.3 
65.3 
65.3 
65.3 
6.5.3 

65.3 
65.3 
65.3 

65. 8 ■ 
65.6 

65.6 

65. G 
65.6 
65. G 
65.6 

65.5 
65.5 
65.5 
65.5 

■SS. 5 : 

65.5 


"65." 5 " 
65.5 
65.5 

65.5 

65.5 
65.4 
65.4 
65.3 
65.3 

"es.'s"; 

"65." 5" 

65.2 

"65." i" 
65. 1 
65.0 

65.0 

65.0 
61.8 
61. 7 
64.7 

64.6! 
64.6 
64.6 
64.6 
€4.5 


64.5 ; 

"64." 5' 

64.4; 

64. 4 

64.8 

84.3 
64. 2 
•6-12 
64.2 

64.2 
64.1 
64. 1 
G4.0 
64.0 

64.0 
64.0 
64. 
63.-9' 

63.8 
"63.6" 
"63." 6" 

63.5 

'"ei's" 

63.4 


"63." 4" 
63.4 
63.3 
6^.3 

63.3 

63.2 
63.2 

'"6;3."2" 

63.2 

"63." i" 


62.6 
62.5 
62.5 
62.5 
62.5 


61.6 


61.2 


2 








3 






45.2 




A. 
















61.6 


81.0 


6 






45.2 




7... . 






62.4 
62.4 
62.4 
62.4 

62.4 
62.0 


61.6 


61.0 


8 :...::: 










9 













10... 






45.2 


61.5 

61.4 
61.4 




11 








12 










13 






45,2 




14 








61.4 


61.4 




15 








63. 
63.0 


62.0 


60.8 


16 






45.2 
45.2 




17 








18 






62.9; 

62.9 ' 
62.9; 

62.8 
62.8 
62.8 
62.8 


62.0 

"ei'o" 

"hi'.b'. 
' "ei.'s" 


"6i."3" 
61.3 

""ei.'s" 


60.8 


19 










20 






45.2 




21 








22 








60.8 


23 










24 






45.2 




25 






61.3 : 




26 








62. 7 ! 
62.7 
«2.7; 
62.6 
62.6 




60 8 


27 








61.8 

"eiJs" 






28 








61.2 




29 








60 6 


30 






45.3 
45.3 




31 














» I^CTSjpeartsa-y gage, a©* refesntsd. 



SANTA AI^A RIVEE BASIN. 328 

Daily elevations, infect, of EUinore L&he at Elsinore. Calif., for 191 5-19 IS — Continued. 



Day. 1 Oct. 


Nov. 


Dec. 


Jan. 


Fob. 


Mar. 


Apr. 


May. 


Jun? . 


July. 


Aug. 


Sept. 


191G~17. 
1 


GO. 6 






60.2 


60.4 












51 6 




2 


60.4 


60.0 






§0.5 


60.0 
60.0 


59.7 




3. . .. 








60.6 


60.7 






4 




60.4 . 


60.0 








59. G 




5 








GO.G. 
'"60^7' 

m.s 






59.7 




6 


60.6 , 






00.2 . 


60.4 


60.6 




















59.6 

"m.Q 






g 




6a4 : 


"'go.'o' 


60.2 




"60." g' 


60.4 


59.8 


59.6 




9 






10 


eo.6 






60.3 




60.4 








11 


60.2 














59.6 




12 




60.0 


60.2 




60.8 


60.6 
60.7 


60.4; 


59.8, 






13 


60.6 










14 








60.3 


m.8 


69.4 


59.8 


"59.6' 


59.6 




15 




60.2 


60.0 


00.2 




16 




GO. 3 


60.8; 






59.8 






17 


60.7 








60.7 




59. G 







18 


60,2 


60.0 ■ 


"■60.' 4' 
60.4 


60.4 






59.8 






19 








60.3 ; 








20 


60.6 






60.4 


60.8 


60.6 










21 


60.2 






59.8 


59.G 


■ 




22 




60.0 






60.8 


60. G 


60.2 






23 


■ 






60.5 , 




59. G 






24 




60.0 


"eo.'o" 


60.4 


60.8 
60.8 


""go." 6' 


60.0' 








25 


60.4 
GO.l 










2G 




60.6 


60.2 
60.2 










27. 


60.0 ; 




60.4 


60.8 


60.6 


59.7 








28 


00.4 


59.6 






29 




.60.2 


60.4 








60.0 , 


59.7 







30 






: 




60.6^ 








31 












60.8 


60.0 
58.2 










1917-18. 
1 








57.1 


57.0 I 


57.8 








2 














56.6 




S 








57.1 






58.5 










4 








57.0! 




58.2 


57.7 

57.7 


57.2 














57.1 


57.2 


58.6 




56.0 


6 








57.2 
57.2 


56.5 




7 










57.0; 








57.7 


55.9 


8 








57.1 




58.6 


58.2 




9 








57.0 1 


57. 4 




57.2 
57.2 


56.5 
; 




10 










58.5 


58.2 


57.6 


65.9 


11. 








57.0 


57.0 


57.2 




12 








58.5 
"58.'4' 






57.0 


5G.4 




13 












5>;.o 


58.1 




55.8 


14 










57.0 










15 








57.1 




57.6 








16 








57.0 
57.0 


58.2 
58.4 






57.0 


50.4 




17 












58.0 




55.8 


18 . 










57.5 








19 








57.0 
57.0 






58.4 


57.9 


56.9 


56.2 




20 






57.2 


57.0 






21 












57.5 


56.9 


'"5G.'2* 


55.7 


22 ... 










58.6 
58.6 








23 










57.1 


58.3 










21 


















55.6 


25 










57.2 


58.7 


58.3 


57.9 


57.4 


56.8 






26 






57.2 


57.1 




55.5 


27 








58.7 








58.1 




28 








57.0 


67.2 




57.8 
57.8 








29 






57.1 
57.1 






57.3 


53.7 






30 






57.0 




58.8 




56.1 




31 











































324 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 
TEMESCAL CREEK NEAR ELSINORE, CALIF. 

Location. — In La Laguna grant at private bridge 1^- miles northwest of Elsinore, 
Riverside County, and 2 miles below outlet of Elsinore Lake. 

Drainage area. — Not measured. Elsinore Lake overflows only during years of 
heavy rainfall. 

Elevation. — About 1,250 feet above sea level. 

Records available. — April 10, 1916, to September 30, 1918. 

Gage. — Vertical staff fastened to left bridge abutment near downstream end. 

Discharge measurements. — Made from bridge at gage or by wading. 

Channel and control. — Sand; not permanent. Banks are high and not subject to 
overflow. About January 20, 1917, the channel at outlet was deepened, per- 
mitting more water to leave Elsinore Lake. March 8 to June 30, 1917, weeds and 
moss were growing in channel. 

Diversions. — See San Jacinto River near Elsinore. Water is pumped from wells in 
Ferris Valley for irrigation. 

Regulation. — Water is stored in Hemet reservoir on South Fork of San Jacinto River. 

Accuracy.— Stage-discharge permanent during 1916 but not in 1917 on account of 
growth of weeds and moss in channel. Well-defined rating curve used April 10, 
1916, to March 7, 1917. Gage read to hundredths, but not every day. Daily dis- 
charge before March 7, 1917, ascertained by applying gage height to rating table; 
after March 7, by shifting-control method. Results for 1916, good; 1917, fair. 
No flow during 1918. 

Discharge measurements of Temescal Creek at Elsinore, Calif., for 1916-17. 



Date. 


Made by— 


beight. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1916. 
Feb. 13 


F. C. Ebert 


FccL 


Scc.-ft. 

a 48 
71 
M43 
179 
170 
126 
99 
52 
42 
20 
16 


1916. 
Aug. 10 
Dec. 7 

1917. 
Jan. 17 
Feb. 13 
Mar. 7 
16 
26 
Apr. 21 
May 20 


F. C. Ebeirt... .. . 


Feet. 
.81 
.79 

.50 
1.04 
L30 
L43 
1.51 
L56 
1.28 


^■t. 


24 
Mar. 9 


do 

McOlasban and Ebert 




.....do 

F. C. Ebert... 


2.4 


22 


F.C. Ebert 






Apr. 10 
28 

May 6 
26 

June 9 


do 

do 

do 

McGlashan and Ebert.. 
F.C. Ebert 


3.90 
3.31 
2.82 
1.99 
1.75 
1.29 
L19 


c .2 


do.... 

do 

do 

do 1 

McGlashan and Ebert.. 

F. C. Ebert 


6.0 
It 
13 

.13 


July 11 

20 


do 

do 


9.1 

3.5 









« Measured 1,000 feet below Lake Elsinore. 
fc Measured 1 mile below Lake Elsinore. 
c Estimated. 



SANTA ANA KIVER BASIN. 325 

Daily discharge, in sccond-fect, of Tcmcstal Creek near Elsinore, Calif., for 1916-17. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July.^ 


Aug. 


Sept. 


1916. 
1 
















113 
112 
112 
106 
104 

102 
a 93 

84 
82 
82 

84 

73 
72 
69 

a 68 

67 

63 
a 62 

61 

60 
a 58 

56 

54 
54 

53 
53 
50 
49 
48 
46 

8.5 
08 

8 
o8 

8 

a8 
8 
8 
7 

7 

o7 
6.5 
6.5 

06 
6 

5.5 
5 
05 
5 
3.5 

3.0 
2.5 
2.5 
a 2. 5 
2.5 

02.4 
a 2. 2 

2.0 
01.5 

1.0 
.8 


45 
44 
44 
43 
42 

41 
41 
40 
40 
40 

38 
o38 
37 
37 
30 

35 
34 
32 
31 
30 

29 
28 
28 
27 
26 

25 
25 
24 
23 
22 

.8 

0.9 

ol.l 

1.2 

.8 

.5 


«22 
21 
20 
21 

21 

21 
20 
23 
«22 
20 

20 
19 
19 
18 
17 

17 
17 
17 
17 
17 

16 
15 
ol5 
15 
15 

15 

13 

.012 

12 

11 

010 


010 
9.5 
9.0 
8.0 
7.0 

4.9 

4.5 

o 4.0 

3.5 

3.0 

«2.6 
2.2 

2.0 
1.7 

01.4 

1.2 
1.-1 
1.0 

4".l 

o2.2 
.3 
.3 
.3 
.3 

.3 
.2 
.2 
.2 
.2 
.2 


fflO.2 


2 
















.1 


3 
















0.2 


4 
















.4 


.5 
















.4 


Q 
















.4 


7 














.2 


8 














.2 


9 












143 


i67'" 

J166 
]66 
159 
159 
159 

1154 
150 
148 
146 
142 

139 
139 
140 
138 
136 

135 
129 
129 
128 
al20 


.2 


10 












a.2 


11 














a. 2 


12 














.2 


13 










48 




;2 


14 










.2 


15 














.3 


16 














.3 


17 














0.3 


18 






1 








.3 


19 






1 








.3 


20 














.3 


21 














.3 


22 












179 


.3 


23 












.3 


24 










71 




a. 3 


25 










.3 


26 














.3 


27 














.3 


28 














0.3 


29 














.3 


30 














.3 


31 
















191&-17. 
1 


O0.4 
,4 
.4 
.4 

.4 

.4 

a. 4 

a .4 

.4 

.4 

ft. 4 
.4 
.5 
.5 

a. 5 

.5 
.5 
.5 

is 

.9 

a 2.0 

3.1 

3.7 

5 

5 

4.9 

a 4. 8 

4.6 

4.6 


3.1 
3.1 
4.0 
4.0 
a 4. 2 

4.3 
4.3 
3.4 
3.4 
a 3. 2 

3.1 

a 3. 2 

a 3. 3 

3.4 

4.0 

4.0 
4.0 
4.0 
4.4 
4.0 

4.3 
4.3 

3.7 
3.7 
3.7 

a 3. 5 

a 3. 3 

3.1 

3.2 

2.8 


2.8 
2.8 
3.0 
3.1 
3.1 

3.1 
2.3 
2.3 
2.3 

a 2. 2 

2.1 
2.1 
2.1 
2.1 
2.1 

2.1 
«2.0 
1.8 
1.8 
1.6 

1.6 

.8 
1.0 
a. 9 

.8 

.2 
.2 
.2 
.2 
.2 
a. 2 


.3 
.3 
.3 
.3 
.2 

.2 
a. 2 
.2 
.2 
.2 

.2 

.3 

ft. 3 

.3 

.3 
.2 
.3 
a 3. 4 
6.5 

a 6.5 
6.5 
6.5 
6.5 
6.5 

6.5 
6.5 
a 6. 5 
6.5 
6.5 
6.5 


6.5 

6.5 

n 6.5 

a 6.5 

6.5 

6.5 

6.5 

6 

6 

6 

a& 

6 
6 
6 

a? 
7.5 
7.5 

a7.5 
7.5 

7.5 
o8 
8.5 
8.5 

ag 

9.5 
9.5 

10 


10 
alO 

10 
9.5 
a 10 

11 
11 
12 
a 12 
13 

13 
13 
12 
12 
12 

13 
13 
a 14 
14 
14 

ol4 

13 

13 

13 
ol3 

13 
13 
13 
13 
13 
12 


ol2 
11 
11 
11 
11 

oil 

11 
all 

11 

11 

11 

11 

11 
a 10 
olO 

10 
10 
10 
9 
a9 

9 
a9 

9 

9 
a9 

9.5 

10 

a 10 

o9 

9 




2... 


1 




3 


! 




4. 






6 


i 




6.. 


I 




7 


a. 4 

.2 

a. 2 

a. 2 

.2 

.3 

0.3 

.3 


1 




8 






9 


1 




10 






11 








12 








13 








14 








15 .... 


.3 

.4 

a. 4 

0.3 

.3 

.2 

0.2 
.3 
.2 

0.2 
.2 








16 








17 








18 








19 








20 








21 








22 








23 








24 








25 








26 








27 








28 . . 








29 








30 








31 



















o Gage not read, discharge interpolated. 
Note.— No fiow July 1, 1917, to Sept. 30, 1918. 



326 SURFACE WATER OE PACIFIC SLOPE, SOUTHERN CALIFORE"IA. 
Monthly discharge of Temescal Creels near Elsinore, Calif., for 1916-17. 



Month. 


Discharge in second- 


Run-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Run-off 
(total in 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1916. 
April 10-30..-. 
May 


167 
113 

1.5 

23 

10 
.4 


120 

46 

22 

10 

.2 

.1 


145 

73.1 
34.2 
17.4 
2.78 
.27 


6,040 
4,490 
2,040 
1,070 
171 
16 


1916-17. 

December 

January 

February 

March 


3.1 
6.5 
10 
14 
12 
8.5 
1.2 
.0 
.0 
.0 


.2 
.2 

6 

9.5 

9 
.8 
.1 
.0 
.0 
.0 


1.71 
2.77 
7.18 
12.3 
10.2 
5.08 
.363 
.00 
.00 
.00 


103 
170 
399 


July. ■ 


750 




April 


607 


September 




312 




21.6 



The poriod 








13,800 


July 








August 

September 

The year . . 


.0 
.0 


1916-17. 

(Jctober 

November 


4.4 


.4 

2.S 


1.71 
3.67 


105 
218 


14 


.0 


3.73 


2,690 



NoTS. — No flow during year 1917-18. 

TEMESCAL CREEK NEAR RINCON, CAIilF. 

Temescal Creek rises in the extreme southwest corner of Eiversido 
County, flows in a general northerly direction, and enters Santa Ana 
River 2 i miles above Rincon and just above the lower narrows of the 
Santa Ana. Its smaller tributaries have their sources on the eastern 
slope of the Santa Ana Mountains. San Jacinto River discharges 
into Lake Elsinore. During years of heavy rainfall this lake over- 
flows and the surplus water finds its way into Temescal Creek. The 
water of Temescal Creek and of its tributary, Coldwater Creek, is 
used for irrigation in the vicinity of Corona. A series of measure- 
ments of Temescal and Coldwater creeks have been made by F. 
Rolfe and are given below. 

During the dry years covered by the following measurements, 
there was no surface flow of Temescal Creek. The water flow- 
ing in the upper pipe line of the Temescal Land & Water Co. in- 
cludes the principal part of the flow of Coldwater Creek and Temescal 
Hot Springs, augmented by water pumped from wells in Temescal 
Valley. 

Discharge measurements of Temescal Creek at upper pipe line, Temescal Land & Water 
Co., Temescal, Riverside County, Calif., for 1899. 



Date. 


Made ])y— 


Dis- 
charge. 


Date. 


Made by — 


Dis- 
charge. 


Jan. 4 


S. G. Bennett 


Scc.-fect. 
0.99 
.74 


Apr. 29 

May 6 
13 
18 
30 

June 9 
16 

Julv 10 

21 


F. Rolfe 


Scc.-fect. 
3.22 


27 


F. Rolfe... . . 


..do 


2.80 


Feb. 4 


..do 


do 


4.02 


11 


do 1 .87 

do 3.f.7 


do 


4.21 


18 


do 


4.01 


24 


...do 


3.37 


.do 


3-36 


Mar. 3 
12 


do 

.....do 


3.87 
5.10 
3.56 
3.74 
4.16 
2.93 
3.71 


do 

do 


3.52 
3.21 


16 


do 


.do 


3.20 


25 


.do 


.do 


3.67 


31 

Apr. 14 

22 


do 

do 


do 

do 


1.48 
4.26 


do 


do 


3.84 











SANTA AIsTA EIVBR BASIIsT. 



327 



Discharge measurements of Temescal Creek at lower jApe line, Temescal Land & Water 
Co., Temescal, Riverside County, Calif., for 1899. 

(Made by F. Roife.] 



Date. 


Dis- 
charge. 


Date. 


Dis- 
charge. 


Date. 


Dis- 
charge. 






Scc.-feci. 






Sec-feet. 






Sec-feet. 


Jan 


28 


0,66 


Mar 


25 


2.91 


Juno 


9 


3.10 


Feb 


1 


.00 




31 


3.42 




15 


2.36 




11 


.31 


Apr 


14 


.89 


July 


4 


2.87 




15 


1.39 




22 


2.28 




19 


2.03 




20 


1.56 




29 


2.28 




25 


2.49 


Mar 


4 


4.22 


May 


6 


4.48 


Aug 


5 


1.12 




12 


3.55 




13 


2.55 




11 


2.40 




18 


2.69 




30 


3.08 




21 


2.65 



COLDWATER CREEK. 



Discharge measurements of Coldwater Creek, Riverside County, one-fifth mile ahove dam., 

for 1899. 

[MadebyF.Rolfe.] 



Date. 


Dis- 
charge. 


Date. 


Dis- 
charge. 


Date. 


Dis- 
charge. 






Sec-feet. 






Sec. -feet. 






Sec. -feet. 


Jan 


4 

18 


0.82 
1.43 


Mar 


12 


0.71 
1.60 


May 


13 


0.37 






17 


.21 




27 


.84 




25 


1.18 




17 


.21 


Feb 


3 


.99 




31 


.84 




29 


.27 




11 


.97 


Apr 


14 


0.68 




31 


.38 




18 


.78 




15 


.62 




31 


.30 




21 ; . 94 




21 


.26 


June 


5 


.39 


Mar 


11 .92 




26 


.38 




7 


.22 



SAN ANTONIO CREEK NEAR CLAREMONT, CALIF. 

Location.— In NW. \ SE. \ sec. 36, T. 2 N., R. 8 W., at highway bridge about half 
a mile above Southern California Edison €o. 's power house (Sierra plant), about 4 
miles above mouth of canyon, and 8 miles northeast of Claremont, Los Angeles 
County, 

Braixage area. — 16.9 square miles (measured on topographic map.) 

Elevation. — ^About 3,200 feet above sea level. 

Records available. — January 25, 1917, to September 30, 1918, (Discharge meas- 
urements only May 31 to September 4, 1916.) 

Gage. — Gurley graph water-stage recorder on left bank at north end of highway bridge. 

Discharge measurements. — ^Made from highway bridge or by wading near gage. 

Channel and control. — Coarse gravel and sm^all bouldere; shifting during high 
stages. One channel except at extremely high floods when left bank is over- 
flowed. 

Extremes of discharge. — 1917-1918; Maximum stage recorded from water-stage re- 
corder, 4. 00 feet at 3 p. m. March 7, 1918 (discharge, 362 second-feet); minimum 
stage recorded from water-stage recorder, 0.93 foot at 4 p, m., August 26, 1918 
(discharge, 0. 5 second-foot). 

Diversions. — The Southern California Edison Co. diverts v/ater for power devel- 
opment above the station. (See record, p. 346. ) 

Regulation. — None, except as indicated above. 

Accuracy. — Stage-discharge relation not permanent during period. Rating curves 
fairly well defined. The operation of the water-stage recorder was satisfactory 
during the period. Dail}^ discharge ascertained by applying to the rating table 
mean daily gage height determined by inspecting recorder graph. Records good. 



328 SUKFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Cooperation. — Southern California Edison Co. furnished ohserver for water-stage 
recorder. 
Cucamonga and San Antonio creeks rise in the San Antonio Mountains, Sierra 
Madre, and flow southward into the Santa Ana Valley, where they are lost in the 
sand. 

Discharge measurements of San Antonio Creek near Claremont, Calif., for 1916-1918. 



1916. 

May 31 

June 13 

27 

July 3 



Aug. 12 
Sept. 4 
Oct. 11 

1917. 
Feb. 19 
24 
Mar. 8 
30 
5 
10 
21 
2 
9 
26 
July 19 
Aug. 28 



Apr. 



May 



Made by— 



J. C. Dort 

do 

H. J. Tompkins. . 

J. C. Dort 

H. J. Tompkins. . 

do 

J.C. Dort 

do 



H. J. Tompkins. . 
,do- 



Dort and Tompkins.. 

J. G. Dort 

H. J. Tompkins 

do 

J.C. Dort 

H. J. Tomukins 

do.... 

do 

Tompkins and Campbell 

H. J. Tompkins 



Gage 
height. 



0.69 
.84 



1.48 
1.53 
1.36 
1.40 
1.40 
1.19 
.56 



Dis- 
charge. 



Sec-ft. 
14 
7.7 
4.4 
3.4 
1.0 
1.0 



2.1 

4.5 
5.2 

17 

20 

25 

15 

18 



1917. 

Sept. 18 
Oct. 25 
Dec. 15 

1918. 
Mar. 9 



May 



14 
23 
June 1 
21 
July 19 
Aug. 25 
Sept. 18 



H. J. Tompkins . 

do 

do 



H. J. Tompkins. . 

C. W. Sopp 

H. J. Tompkins. . 

do 

F.C. Ebert 

H. J. Tompkins.. 

C. W. Sopp 

H. J. Tompkins.. 

C. W. Sopp 

H. J. Tompkins. . 

do 

C. W. Sopp 

H.J. Tompkins. . 

do 

C. W. Sopp 

H. J. Tompkins. . 
F.C. Ebert 



Gage Dis- 
height. charge. 



Feet. 
0.52 
.56 
.58 

.72 
2.47 
2.02 
3.14 
2.39 
2.08 
2.06 
1.90 
1.82 
1.73 
1.60 
1.48 
1.34 
1.04 
.98 
.94 
.96 



Sec-ft. 
0.6 



39 

41 I 
35 . I 
28 '■ 
19 i 
15 
11 

5.8 

1.8 
.85 
.7 . 



Daily discharge, in second-feet, of San . 


intonio CreeJc near 


Claremont, 


Calif, for 1917-18. 


Day. 


Oct. 


Nov. 


Dec, 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1917. 
1 










2.3 
2.3 
2.3 
2.3 
2.3 

2.3 
2.3 
2.3 
2.3 
2.3 

2.3 
2.3 
2.2 
2.2 
2.1 

2.1 
2.5 
2.3 
2.1 
2.1 

2.2 
4.3 
4.4 
4.0 

7 

7 
7 
6 


6.5 

6.5 

6.5 

6 

6 

6 
6 
6 
6.5 

7 

8 

6.5 

6 

6.5 

6.5 

6.5 

7 

7 

7.5 

7.5 

8 

8.5 

9 

8.5 

9 

10 
11 
13 
15 
17 
20 


20 
20 
21 
21 
21 

21 
21 
22 
25 
24 

22 
22 
21 
21 
21 

27 
22 
21 
20 
18 

16 
16 
16 
19 
22 

22 
24 
22 
22 
21 


22 
20 
19 
20 
19 

18 
18 
18 
18 
18 

17 
15 
15 
15 
15 

14 
14 
18 
16 
15 

13 
12 
12 
12 
12 

12 
11 
10 
10 

9.5 

9 


8 

8 

8.5 

8.5 

7.5 

7 

7 

7 

6.5 

6.5 

6 

5.5 

.5.5 

6 

5 

5 

4.5 

4.0 

3.5 

3.3 

3.2 
3.0 
3.0 
2.9 
2.8 

2.6 
2.3 
2.2 
1.8 
1.8 


1.8' 
1.8 
1.5 
1.4 
1.3 

1.3 
1.3 
1.3 
1.3 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.1 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.7 
1.3 
1.3 
1.2 
1.2 


1.2 
1.1 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
.9 
.9 
.9 

.9 
.9 
.9 
.9 
.9 
.9 


0.9 


2 . ... 










.9 


3 










.9 


4 










.9 


5 










.9 


6 










.9 


7 










.9 


8 










.9 


9 










.9 


10 










.8 


11 










.8 


12 










.8 


13 










.8 


14 










.7 


15 










.7 


16. . 










.8 


17 











.9 


18 










.8 


19 










.8 


20 










.9 


21 










.9 


22 










.9 


23.. 










.9 


24 










1.0 


25 








2.5 

2.5 
2.5 
2.4 
2.4 
2.4 
2.3 


1.0 


26 








1.0 


27 








.9 


28 









.8 


29 


1 " 




.8 


30... 


j 




1.0 


31 


1 







Note,— Water-stage recorder not in operation Jan. 25 to Feb. 18— discharge estimated from record of flow 
COD San Dimas Creek, 



SANTA ANA EIVER BASIN. 



329 



Daily discharge, insccond-ffct, of San Antonio Creek near Claremont, Calif. Jor 1917-18— 

Continued. 



Day. 


Oct. 


Nov. 


Dee. 


Jan. 


Feb. 


Mar. 


Apr. 


Mtiy. 


June. 


July. 


Aug. 


Sept. 


1917-18. 
1 


l.G 
1.1 
1.1 
1.1 
1.1 

1.2 
1.2 
1.1 
1.1 

1.0 

1.1 
1.1 
1.2 
1.2 
1.1 

1.1 
1.1 
1.1 
1.0 
1.0 

.9 
.9 
.8 
.8 
.7 

.8 
.8 
.8 
.9 
.9 
.8 


0.9 
.9 
.9 
.9 

1.0 

1.2 
1.1 
1.1 
1.0 
.9 

.9 
.9 
.9 
.9 
.9 

.9 
.9 
.9 
.9 
.9 

.9 
.9 
.9 
.9 
.9 

.9 
.9 
.9 
.9 
.9 


0.9 
.9 
.9 
.9 
.9 

.9 
.9 

.8 
.8 
.8 

.8 

.7 
.7 

.8 
.8 

.8 
.8 
.8 

.8 

.8 

.8 

.8 
.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 
.8 


0.8 

.8 
.8 
.8 
.8 

.8 
.7 
.7 
.8 
.8 

.8 
.8 
.8 
.9 
.9 

.9 
.9 
.9 
.9 
.9 

.9 
.8 
.8 
.8 
1.1 

1.0 
1.0 
.9 
.8 
.8 
.8 


0.8 

.8 
.8 
.8 

.8 

.8 
.8 
.8 
.9 
.9 

.9 
.9 
.9 
.9 
.9 

.9 
1.1 
1.1 

1:J 

2.8 
10 
7 

3.6 
3.. 

3.8 
3.4 

2.7 


2.2 
1.8 
1.8 
1.7 

1.8 

2.4 
133 
96 
45 
94 

179 
184 
175 
165 
150 

130 
110 

96 
89 

88 

69 
65 
61 
57 
53 

50 
49 
46 
45 
43 
43 


42 
41 
41 
41 
41 

40 
37 
35 
32 
31 

30 
30 
31 
30 
29 

27 
■ 26 
25 
26 
25 

25 
24 
24 
24 
24 

24 
24 
25 
24 
24 


22 
22 
22 
20 
21 

21 
20 
20 
20 
20 

23 
18 
17 
15 
15 

14 

\l 
i? 

11 
11 
10 
10 
10 

9.5 
9 
10 
9.5 
8.5 
7.5 


6.5 
6 

5.5 
4.9 

4.5 
4.3 
3.9 
3.7 
3.5 

3.0 
2.5 
2.3 
2.1 
1.7 

2.0 
1.7 
1.7 
1.7 
1.7 

1.5 
1.4 
1.2 
1.2 
1.1 

1.1 
1.0 
.9 
.9 
.9 


0.9 
.9 
.9 
.9 
.9 

.9 
.9 
.9 
.9 
.9 

.9 
.9 
.9 

.8 
.8 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 
.8 


0.8 
.8 
.•8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
.8 
.7 

.6 
.6 
.6 
.7 
.7 
.7 


0.7 


2 


.7 


3 


.7 


4 


.7 


5 


.7 


6 


.7 


7 


.7 


8 


.7 


9 


.7 


10 


.7 


11 - .. 


.7 


12 


.7 


13 


.8 


14 


.8 


15 


.8 


16 


.8 


17 


.8 


18. 


.8 


19 


.8 


20 


.8 


21 


.8 


22 


.8 


23 


.8 


24 .. 


.8 


25 


.8 


26 


.8 


27 


•t) 


28 


.9 


29 


.9 


30 


.8 


31 - 









Monthly discharge of San Antonio Creek near Claremont, Calif., for 1917-18. 



1917. 
January 25-31... 

February 

March 

April 

May 

June 

July 

August 

September 



The period. 



Discharge in second-feet 



mum. mum. 



2.5 
7 

20 

27 

22 
8.5 
1.8 
1.2 
1.0 



2.3 
2.1 
6 
16 
9 

1.8 
1.0 



2.43 
3.11 
8.42 
21.0 
15.0 
4.95 
1.24 
.98 
.87 



Run-off 
(total 



acre- 
feet). 



33.7 

173 

518 
1,250 

922 

295 
76.2 
60.3 
51.8 



3,380 



1917-18. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 

June 

July 

August 

September . . 

The year. 



Discharge in second-feet 



Maxi- 
mum. 



1.2 
1.2 
.9 
1.1 
10 
184 
42 
23 
7 



Mini- 
mum. 



0.8 
.9 
.7 

.7 
.8 

1.7 
24 

7.5 

9. 
.8 
.6 
.7 



1.00 
.93 

.82 

.85 

1.95 

75.1 

30.1 

1.5.0 

2.71 

.84 

.77 

.77 



11.0 



Rim-oiI 

(total 



acre- 
feet). 



61.5 
65.3 
50.4 
52.3 

108 
4,620 
1,790 
922 
161 
51.6 
47.3 



330 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORl^IA. 

Daily discharge, in second-feet, of San Antonio Creeh and Southern California Edison 
Co.^s canal near Claremont, Calif., for 1917-18. 



Apr. 



May. 


June. 


July. 


43 


29 


21 


41 


29 


21 


40 


30 


20 


41 


30 


20 


40 


28 


20 


39 


28 


20 


39 


28 


20 


39 


28 


20 


39 


28 


19 


39 


28 


19 


38 


27 


19 


36 


26 


19 


36 


26 


19 


36 


27 


19 


36 


26 


18 


35 


26 


18 


35 


24 


18 


39 


23 


18 


37 


22 


18 


36 


22 


17 


34 


22 


17 


33 


22 


17 


33 


22 


17 


33 


22 


17 


33 


22 


16 


33 


22 


17 


32 


21 


20 


31 


21 


19 


31 


21 


18 


30 


21 


18 


30 




18 


41 


26 


20 


41 


26 


20 


41 


25 


19 


39 


25 


19 


40 


24 


19 


40 


24 


19 


39 


24 


19 


39 


23 


19 


39 


23 


18 


39 


23 


18 


42 


22 


18 


37 


22 


18 


36 


22 


18 


34 


22 


18 


34 


21 


18 


33 


21 


17 


33 


21 


17 


32 


21 


17 


31 


21 


17 


30 


21 


17 


30 


21 


16 


30 


21 


16 


29 


20 


17 


29 


20 


16 


29 


20 


16 


29 


20 


16 


28 


20 


16 


29 


20 


16 


29 


20 


16 


28 


20 


15 


27 




15 



Aug. 



11 I 

10 j 
10 



10 
10 
10 
10 
10 

10 
10 
10 
10 
9.5 

10 
9.5 
9.5 
9.5 

10 



9.5 
9.5 

9.5 



8.5 

9 

8.5 



8.5 
8.5 
9 



8.5 
8.5 



8 

8.5 

8.5 

8.5 

8.5 



8.5 
8.5 
8.5 

8.5 
8.5 
9 



153 
116 



199 
204 
195 
185 
170 

150 
130 
116 
109 
108 



Note.— See page 346 for daily discharge of Southern California Edison Co.'s canal. 



SANTA ANA RIVER BASIN. 



831 



Monthly discharge of San Ardmiio Creek and Southern California Edison Co.^ 
7iear Claremont, Calif., for 1917-18. 



canal 



Discharge in second- 






feet. 




Run-off 

(total in 

acre- l 








Maxi- 


Mini- 


Mean. 


feet). 


mum. 


mum. 






16 


15 


15.6 


217 


28 


15 


18.0 


1,000 


11 


27 


29.5 


1,810 


46 


37 


42.0 


2,500 


43 


30 


36.0 


2,210 


30 


21 


25.0 


1,490 


21 


16 


18.6 


1,140 


17 


13 


15.2 


935 


13 


11 


12.3 


732 








12, 000 









Discharge in second- | 




feet. 




Maxi- 


Mini- 




mum. 


mum. 




12 


10 


11.0 


12 


10 


10.1 


10 


9 


9.53 


9 


8.5 


8.87 


26 


8 


10.6 


201 


11 


93.1 


61 


43 


40.1 


42 


27 


34.1 


26 


20 


22.0 


20 


15 


17.4 


16 


12 


14.0 


12 


11 


11.7 


201 


8 


24.4 



Run-Off 
(total in 
acre- 
feet). 



1917. 
Jamiary 25-31 — 

February 

March 

April 

May 

June 

July 

August 

September. . 

Tho period 



1917-iS. 

October 

November 

December 

January 

February 

March 

April 

May 

Juiie 

July 

August 

September 

The year, 



676 

601 

586 

545 

589 

5, 720 

2,920 

2,100 

1,310 

1,070 

861 



SAJSr AHTONIO CREES: lyTEAB UPLAND, CALIF. 

Location. — In SW. ^sec. 30, T. 2 N., R. 8 W., below Southern California Edison 
Co.'s power house, about 4 miles above mouth of canyon, and 8 miles norfhwest 
of Upland, San Bernardino County. 

Drainage area. — Not measured. 

Elevation. — About 2,700 feet a]x)ve sea level. 

Records available. — March 11, 1901 to Januaiy, 31, 1917. 

Discharge. — Determined from gage-height record obtained at 10-foot rectangular weir 
in tailrace; excess water flowing over diverting dam is estimated. 

Extremes op discharge. — 1901-1917: Maximum mean daily discharge reported, 607 
second-feet February 21, 1914 (no record for flood of January, 1916); minimum 
mean daily discharge reported, 3.4 second-feet February 29, 1904. 

Diversions. — No information. 

Regulation. — No information. 

Accuracy. — Capacity of power canal is about 21 second-feet. Records excellent 
when flow of creek does not exceed capacity of canal. 

Cooperation.— Daily discharge record furnished by Pacific Light & Power Corpora- 
tion, through H. A. Barre, chief engineer, and Southern California Edison Co. 



332 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of San Antonio Creek near Upland, Calif., for 1901-1917, 



Day. 



Apr. 



May. 


June. 


Juiy. 


Aug. 


18 


17 


14 


10 


18 


17 


14 


10 


17 


16 


14 


9.6 


17 


16 


13 


9.9 


16 


16 


14 


9.6 


13 


16 


14 


9-9 


17 


16 


14 


9.9 


17 


16 


13 


9.9 


17 


16 


13 


9.7 


16 


16 


13 


9.7 


16 


16 


13 


9.6 


16 


16 


12 


9.9 


16 


16 


12 


9.7 


16 


16 


12 


9.7 


16 


16 


12 


9.G 


16 


16 


12 


9.3 




16 


12 


9.3 




16 


12 


9.3 




16 


12 


9.3 




16 


12 


9.3 




16 


12 


9.3 




16 


12 


9.3 




15 


12 


9.3 




16 


12 


9.3 




16 


12 


9.3 


ol7 


14 


12 


8.7 




14 


12 


8.7 




14 


11 


8.7 




14 


11 


8.7 


a 17 


14 


11 


8.7 






11 


8.7 



1901. 
1 




2 




3 




4 . ... 








6. . . . . . 




7 




8 




9 




10 




n . . 


5.4 


12 


5.6 


33 


5.6 


14. . 


5.6 


15 


5.4 


16 


5.7 


37 


5.4 


18 


5.6 


19 . . .. 


5.4 


20 


5.4 


21 


5.6 


22 : 


5.6 


23 


5.6 


24...... 


5.6 


25 


5.6 


26 


5.6 


27 


5.6 


28 .... . 


5.4 


29 


5.6 


30 


5.5 


31 


5.4 



5.6 
5.6 
5.5 
5.4 
5.6 

5.3 
5.5 
5.4 
5.4 
5.4 

5.4 
5.4 
5.4 
5. 5 
5.5 

5.0 
5.0 
5.0 
5.1 
5.1 

5.3 
5.2 

16 

16 

16 

16 
16 
16 
16 
16 



Day. 



9.. 
10.. 



19.. 
20.. 



22.. 
23.. 



28.. 
29.. 
30.. 
31.. 



6.8 
6.8 
7.2 
7.2 
7.2 

7.2 

7.2 
8.7 
7.7 

7.7 
7.7 



7.4 
7.2 
■7.2 

7.2 
7.2 
7.2 
7.2 
7.2 

7.7 
7.2 
7.2 
7.2 
6.8 



6.8 
6.5 
6.5 
6.5 

6.3 
6.3 
6.3 
6.3 
6.3 



6.3 
6.3 
6.3 
6.3 
6.3 

6.3 
6.3 
6.3 
6.3 
6.3 

6.3 
6.3 
6.3 
6.3 
6.3 



6.3 
6.3 
6.3 

6.3 
6.3 
6.3 
6.3 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 
6.0 



6.0 
6.0 
6.0 
6.0 
6.0. 

6.0 
6.0 
6.0 
6.0 
6,0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.3 

6.0 
6.0 
6.0 
6.0 
6.3 

6.3 
6.3 
6.0 
6.0 
6.0 
6.0 



6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
5.7 
5.7 
5.7 

5.7 

5.7 
5.7 
5.7 
5.7 
5.7 

5.7 
5.7 
5.7 

5.7 
5.7 



7.1 
6.8 



6.8 
7.1 



7.4 

7.4 
7.4 
7.4 
7.4 

7.4 

7.4 
7.4 
7.4 

7.7 

7.7 
7.7 
7.4 
7.4 
8.3 

8.3 
8.3 
8.3 
8.3 
8.3 
8.3 



Apr. 



8.3 
8.3 
8.3 
8.3 
8.3 



8.3 
8.3 
8.3 
8.3 
8.3 

8.3 
8.3 
8.3 
9.0 
9.0 

9.0 
9.0 
9.0 



9.3 
9.3 



9.0 
9.0 



9.0 

8.7 
8.3 



8.0 
8.0 
8.0 

7.7 

7.7 



6.5: 

6.5 

6.5 



July. 



6.5 
6.6 
6.6 
6.6 
6.6 

6.6 
6.6 



6.3 
6.3 
6.3 
6.3 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
6.0 
6.0 
6.0 
6.0 



Aug. 



6.1 

5.7 
5.7 



5.7 
5.7 
5.7 
5.4 
6.4 

5.4 
5.4 
5.4 

5.4 
5.4 

5.4 
5.4 



5.4 
5.4 
5.4 
5.4 
5.2 

5.2 
5.2 
5.2 
5.2 
5.2 
5.2 



« Interpolated by United States Geological Survey. 



SANTA ANA KIVER BASIN. 



333 



. Daily disdmnje^insecmid-feety of San Antonio Creek near Upland, Calif., for 1901-1917-^ 

Continued. 



Da3^. 



)et. 


Xov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


4.6 


4.2 


4.4 


4.4 


6.3 


6.3 


200 


16 


16 


18 


12 


^.9 


4.6 


4.2 


4.4 


4.4 


6.3 


6.3 


160 


16 


16 


18 


12 


9.9 


4.6 


4.2 


4.4 


4.4 


6.0 


6.0 




16 


16 


17 


12 


9.7 


4.6 


4.2 


4.4 


4.4 


6.0 


6.3 




16 


16 


17 


12 


9.7 


4.6 


4.2 


4.4 


4.4 


6.0 


7.4 


14 


16 


16 


17 


12 


9:7 


4.6 


4.2 


4.4 


4.4 


6.0 


7.1 


16 


16 


16 


17 


12 


9.3 


4.6 


4.2 


4.4 


4.4 


6.0 


7.1 


16 


Ifl 


16 


17 


11 


9.3 


4.6 


4.2 


4.4 


4.4 


6.0 


7.1 


16 


16 


16 


17 


11 


9:3 


4.6 


4.6 


4.4 


4.4 


6.0 


7.1 


16 


16 


16 


17 


11 


9.3 


4.6 


4.4 


4.4 


4.4 


6.0 


7.1 


16 


16 


20 


17 


11 


9.3 


4.6 


4.4 


4.4 


4.4 


6.0 


7.1 


16 


16 


20 


16 


11 


9.3 


4.6 


4.9 


4.4 


4.4 


6.0 


7.1 


16- 


16 


20 


16 


11 


9:3 


4.6 


4,4 


4.6 


4.4 


6.0 


7.1 


16 


16 


20 


16 


11 


9.3 


4.6 


4.4 


4.4 


4.4 


6.0 


7.1 


16 


16 


20 


16 


11 


9.3 


4.6 


4.4 


4.4 


4.4 


6.0 


7.1 


16 


16 


20 


Ifi 


11 


9.3 


4.6 


4.4 


4.4 


4.4 


6.0 


7.1 


16 


16 


20 


16 


11 


9;- 3 


4.4 


4.4 


4.4 


4.4 


6.0 


7.1 


16 


16 


20 


16 


11 


9.0 


4.4 


4.4 


4.6 


4.4 


6.0 


7.1 


16 


16 


20 


16 


11 


9:0 


4.4 


4.4 


4.6 


4.4 


6.0 


7.1 


16 


16 


29 


16 


11 


9.3 


4.4 


4.4 


4.6 


4.4 


6.0 


7.1 




16 


20 


16 


11 


9.0 


4.4 


4.4 


4.6 


4.4 


6.0 


9.0 




16 


20 


16 


11 


9.0 


4.4 


4.4 


4.6 


4.4 


6.0 


7.1 




16 


20 


16 . 


11 


9:0 


4.4 


4.4 


4.6 


4.4 


6.0 


7.1 




16 


20 


15 


11 


9:0 


4.4 


4.4 


4.6 


4.4 


6.0 


7.1 




16 


20 


14 


11 


9.0 


4.4 


4.4 


4.6 


4.4 


6.0 


9.0 


16 


16 


19 


13 


11 


9:0 


4.4 


4.4 


4.4 


4.4 


6.0 


9.0 


16 


16 


19 


13 


11 


9.0 


4.4 


4.4 


4.4 


5.7 


6.0 


8.7 


16 


16 


19 


13 


11 


9.0 


4.4 


4.4 


4.4 


5.7 


6.0 


8.7 


16 


16 


19 


13 


11 


9.-0 


4 4 


4.4 

4.4 


4.4 

4.4 
4.4 


6.3 
6.3 
6.3 






16 
16 


16 
16 
16 


19 
19 


13 
13 
13 


10 
10 
9.9 


9.0 


4 4 






9.0 


4.4 








8.7 


7.4 


7.1 


6.6 


6.3 


7.4 


11.0 


15.0 


14 


9.3 


7.4 


6.8 


H.7 


7.4 


7.1 


6.6 


6.3 


7.4 


11.0 


15.0 


14 


9.3 


7.1 


6.6 


8.7 


7.4 


7.1 


6.6 


6.3 


7.1 


11.0 


15. 


14 


9.3 


7.1 


6.6 


8.7 


7.4 


7.1 


6.6 


6.3 


7.1 


11.0 


15.0 


14 


9.3 


7.1 


6.6 


8.7 


7.4 


7.1 


6.6 


6.3 


7.1 


11.0 


15.0 


13 


9.3 


7.1 


6.6 


8.7 


7.4 


7.1 


6.6 


6.6 


6.8 


11.0 


15 


13 


9.3 


7.1 


6.6 


8.7 


7.4 


7.1 


6.6 


6.3 


6.8 


11.0 


15 


• 12 


9.3 


7.1 


6.6 


8.7 


7.4 


7.1 


6.6 


6.3 


6.8 


11.0 


15 


12 


9.3 


7.1 


6.C 


8.7 


7.4 


7.1 


6.6 


6.3 


6.8 


11.0 


15 


12 


9.3 


7.1 


6.0 


8.7 


7.4 


7.1 


6.6 


6.3 


6.8 


11.0 


16 


12 


9.3 


7.1 


6.6 


8.7 


7.4 


7.1 


6.6 


6.3 


8.0 


11.0 


17 


12 


9.3 


7.1 


6.6 


8.7 


7.4 


7.1 


6.6 


6.3 


7.1 


11.0 


17 


12 


9.3 


7.1 


6.S 


7.4 


7.4 


7.1 


6.6 


6.3 


7.1 


11.0 


17 


11 


9.0 


7.1 


6.6 


7.4 


7.4 


7.1 


6.6 


6.3 


7.1 


11 


17 


11 


7.7 


7.1 


6.6 


7.4 


7.4 


6.8 


6.6 


6.0 


7.1 


11.0 


16 


11 


7.7 


8.0 


6.3 


7.4 


7.4 


6.8 


6.6 


6.6 


7.1 


13.0 


16 


11 


7.7 


8.3 


0.3 


7,4 


7,4 


6.0 


6.6 


6.6 


7.1 


13.0 


16 


11 


7.7 


8.3 


6.C 


7.4 


7.1 


6.8 


6.6 


6.6 


7.1 


13.0 


16 


11 


7.7 


8.0 


6.C 


7.4 


7.1 


6.8 


6.6 


6.6 


7.1 


13.0 


16 


11 


7.7 


8.0 


6.i 


8.0 


7.1 


6.8 


6.6 


6.3 


7.1 


15.0 


16 


11 


7.7 


7.7 


6:3 


8.0 


7.1 


6.8 


6.6 


6.3 


7.1 


15.0 


16 


11 


7.7 


7.7 


6.3 


".4 


7.1 


6.8 


6.6 


6.3 


7.1 


15.0 


15 


10 


7.7 


7.7 


6.i 


7.4 


7.1 


6.8 


6.6 


6.3 


17.0 


15.0 


15 


10 


7.7 


7.7 


b.c 


V.4 


7 1 


6.8 


6.6 


6.3 


10.0 


14.0 


15 


10 


7.7 


7.5 


6.£ 


V.4 


/.I 


6.8 


6.6 


6.3 


10.0 


14.0 


15 


10 


■ 7.7 


7.5 


6.3 


7.4 


7.1 


6.8 


6.6 


6.3 


9.3 


14.0 


15 


10 


7 5 


7.5 


6.3 


7.4 


7.1 


6.8 


6.3 


6.3 


9.3 


14.0 


15 


11 


7.5 


7.5 


6A 


V.4 


7.1 


6.6 


6.6 


8.4 


9.3 


14.0 


15 


11 


7.5 


7.5 


6.C 


7.4 


7.1 


6.6 


6.6 


3.4 


9.7 


14.0 


15 


a 10 


<.o 


7.5 


6. J 


7.4 


7.1 


6. '6 


6.0 




9.7 


14.0 


15 


a 10 


7.5 


6.8 


6.( 


7.4 




CO 


6.3- 




11.0 




15 




7.5 


6.8 





o Interpolated by United States Geological Survey. 



334 SURFACE WATER OE PACIFIC SLOPE, SOUTHERN C^ALIFORNIA. 

Daily discharge, in second-fed, of San Antonio Creek near Upland, Calif. , for 1901-1917- 

Continued . 



11 
11 

all 



19 
120 
280 
280 
200 

a300 
400 
300 



16 
17 
17 

16 
16 
16 
16 
16 

60 
300 
160 
160 
160 

160 
240 
200 
200 
180 

180 
160 
160 
160 
240 

260 
300 



260 
250 1 



Apr. 



240 
220 
180 
170 
160 

160 
160 
160 
140 
130 

120 
120 
120 
110 
100 

100 
100 
100 
90 
90 

90 
90 



:May. 



80 
80- 
100 
110 
110 
110 



«34 
34 
32 
32 

32 

32 
32 
32 
32 



100 
100 
100 
100 
100 

100 
100 
100 
90 
90 



Aug. 



a Interpolated bj United States Geological Suryey. 



SAITTA AE^A EIVEK BASIN, 



335 



Dailri dischurge, in second-feet, of San Antonio Creel: near Upland, Calif., for 1901-1917- 

Continued . 



Apr. 



Jvily. 



16 
17 
17 
17 

18 

a 18 

18 

18 



11 
11 
11 
10 
10 

10 
10 
10 
10 
10 

10 
10 
10 
10 
10 

10 
10 
10 
10 
10 

9.9 

9.7 
9.7 

12 

13 

17 
15 



60 
160 

160 
140 
130 
130 
120 

120 
120 
110 
100 
100 

100 
100 
100 
100 
100 

160 
140 
140 
140 
160 

160 
160 
150 
150 
140 
130 



130 
130 
130 
130 
130 

130 
130 
130 
130 
120 

120 
120 
110 
110 
110 

110 
110 
110 
110 
100 

100 
100 
100 
100 
100 

100 
100 
100 
100 
100 



100 
100 
100 
100 
100 

100 
100 
100 
100 
100 

100 
100 



a luterpolated hy United Slates G«otogic3i Sarvey. 



3^86 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge , in second-feet, of San Antonio Creek near Upland, Calif, for 1901-1917 — 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1908-9. 
1 


9.0 
9.0 
9.0 
9.0 
9.0 

9.0 
9.0 
9.0 

8.8 

8.5 

8.5 
8.5 
8.5 
8.5 

8.5 

8.5 
8.5 
8.5 
8.5 
8.5 

8.5 
8.5 

8.5 
8.5 
8.5 

S.5 
8.5 
8.5 
8.5 
8.5 
8.5 

12 
12 
12 
12 
12 

12 
12 
12 
12 
12 

12 
12 
12 
11 
11 

11 
11 
11 
11 
11 

12 
12 
12 
11 
11 

11 
11 
11 
11 
11 
11 


8.5 
8.5 
8.5 
8.5 
8.0 

7.9 
7.9 
7.9 
7.9 
7.9 

7.9 
7.9 
7.9 
7.9 
7.9 

7.9 
7.9 
7.9 
7.9 
7.9 

7.9 
7.9 
7.9 
7.9 
7,9 

7.9 
7.9 
7.9 
7.9 
7.9 

11 
11 
11 
11 
10 

10 
10 
10 
10 
11 

11 
11 
11 
11 
12 

11 
11 

11 
11 
11 

11 
11 
11 

u 
11 

11 

11 
11 
11 


7.9 
a 8.2 

8.5 
8.5 
8.2 

8.2 
8.2 
8.2 
8.2 
8.2 

7.9 
8.4 
8.4 

8.4 
8.4 

8.4 
8.4 
8.5 
8.5 
8.5 

8.5 
8.5 
8.4 
8.4 
8,2 

8.0 
7.9 
7.9 
7.9 
7.9 
7.9 

11 
11 
11 
11 
11 

11 
11 
11 
15 
23 

21 

18 
18 
18 
18 

18 
18 
a 18 
18 
18 

20 
19 
20 
20 
20 

18 
18 
17 
17 

17 

27 


7.9 
7.9 
7.9 
7.9 
7.9 

7.9 
7.9 
7.9 
8.0 
8.0 

8.0 
8.1 

8.2 
8.2 
8.1 

8.1 
8.0 
8.0 
8.0 
8.0 

8.7 
121 

51 
130 

45 

45 
45 
45 
37 
35 
35 

'2ii"" 

211 
211 
211 

211 
201 
201 
201 
181 

171 
171 
151 
141 
131 

121 
91 
81 
71 
71 

81 
81 
81 
71 
71 
61 


35 
33 
31 
35 
35 

35 
41 

61 
61 
61 

61 
81 
101 
101 
101 

101 
101 
101 
101 
91 

91 
91 
81 

81 
81 

81 
81 

81 

51 
51 
51 
51 
51 

50 
50 
50 
49 
49 

49 
49 
49 
49 

47 

46 
45 
45 
45 
46 

46 
37 
36 
35 
35 

34 
34 
33 


81 
81 
81 

81 

81 

81 
81 
81 
81 

81 

81 

81 
81 
81 
81 

81 
81 
81 
81 
80 

81 
101 
101 
101 
101 

101 
101 
101 
101 
101 
101 

33 
31 

28 
28 
26 

25 
25 
25 
25 
25 

24 
24 
24 
24 
24 

24 
24 
25 
24 
25 

24 
25 
25 
25 
25 

25 
25 
27 

27 
27 
27 


101 
101 
101 
81 

81 

81 

81 

81 
81 

81 

81 
81 
81 
81 
81 

81 
81 
81 
81 
81 

81 
81 
81 
81 
81 

81 

81 
81 
81 
81 

27 
26 
26 
26 
2« 

26 
26 
26 
25 
25 

25 
26 

26 
26 

25 

25 
25 
25 
25 
24 

24 
24 
23 
23 
22 

22 
22 
22 
22 
22 


81 
81 
81 
81 

81 

81 
81 
81 
81 
81 

81 

81 
81 
81 
81 

81 
81 
81 

81 
81 

81 
81 
81 
81 
81 

81 
81 
81 
81 

81 

81 

22 
22 
22 
22 
22 

22 
22 
21 
21 
21 

21 
20 
20 
20 
20 

20 
20 
20 
19 
19 

19 
19 
19 
19 

18 


71 
71 

61 
61 

57 

67 
57 
57 

57 

57 

51 
51 
51 
51 
51 

45 
41 

41 
41 
41 

41 
39 
39 
33 
33 

31 
31 
31 
29 

16 
16 
16 
16 
16 

16 
16 
16 
16 
16 

15 
16 
15 
16 
16 

16 
15 
15 
15 
15 

15 
15 
15 
15 
15 

15 
14 
14 
14 
14 


27 

27 
27 
27 
27 

27 
27 
27 
27 
27 

26 
25 
23 
23 
22 

23 
23 
23 
23 
23 

22 
21 
21 
21 
21 

21 
21 
21 
21 
20 
18 

14 
14 
14 
14 
14 

13 
13 
13 
13 
13 

13 
13 
13 
13 
13 

12 
12 
12 
12 
12 

12 
12 
12 
12 
11 

11 
11 
11 
11 
11 
11 


19 
19 
18 
17 
17 

17 
17 
17 
17 
17 

17 
17 
17 
17 
16 

16 
16 
16 
16 
16 

16 
16 
16 
16 
15 

15 
15 
15 
15 
15 
15 

11 
11 
11 
11 
11 

10 
10 
10 
10 
10 

10 
10 
10 
10 
10 

10 
10 
10 
9.6 
10 

9.9 
9.9 
9.9 
9.9 
9.9 

9.9 
9.9 
9.9 
9.9 
8.6 
9.0 


15 


2 


15 


3 


15 


4 


15 


5 


15 


6 


15 




14 


8 


13 


9 


13 


10 


13 


1] 


13 


12 


13 


13 


13 


14 


13 


1,5 


13 


]() 


■14 • 


17.. 


12 


18 


12 


19 . .. 


12 


20 


12 


21 


12 


22 


12 


23 


12 


24. 


12 


25 


12 


26 


12 


27 


12 


2S . -. 


12 


29 


12 


30 


12 


31 




1909-10. 
1 


9.0 


2 


9.0 


3 . .. 


9,0 


4 


9.0 


5 


9.0 


6 


9.0 


7 


9.0 


8 


8.0 


9 


8.0 


10 


8.0 


11 


8.4 


12 


8.4 


13 


8.4 


14 .... 


8.4 


15 


■ 8.4 


16 


■ 8.4 


17 


8.4 


18 


8.4 


19 


8.4 


20 


a4 


21 . . 


8.4 


22 


7.8 


23 


7.8 


24 


7.4 


25 


7.8 


28 . 


7.8 


27 


7.8 


28 


7.8 


29 


7.4 


30 


7.8 


31 





interpolated by United States Geological Survey. 



SANTA ANA EIVEE BASIN. 



337 



Daily discharge, in s(cond-fcct, of San Antonio Creeh near Upland, Calif., for 1901-1917- 

Continued. 



Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


7.8 


7.2 


7.4 


7.0 


33 


35 


41 


36 


29 


23 


19 


7.8 


7.6 


7.4 


7.0 


31 


37 


43 


36 


29 


23 


19 


7.8 


7.6 


7.4 


7.0 


27 


39 


41 


36 


29 


23 


19 


7.8 


7.6 


7.4 


7.0 


39 


43 


41 


36 


29 


23 


19 


7.8 


7.4 


7.4 


6.0 


41 


45 


41 


35 


29 


22 


19 


7.4 


7.6 


7.4 


6.6 


37 


45 


41 


35 


29 


22 


18 


7.4 


7.2 


7.4 


6.6 


31 


43 


41 


35 


29 


21 


18 


7.6 


7.2 


7.4 


6.6 


27 


45 


41 


35 


29 


21 


18 


7.6 


7,6 


7.4 


6.6 


25 


49 


41 


34 


29 


21 


18 


7.6 


7.6 


7.4 


14 


25 


321 


41 


34 


29 


21 


17 


7.8 


7.8 


7.0 


10 


25 


a261 


41 


34 


29 


21 


17 


7.8 


7.6 


7.0 


8.8 


25 


201 


41 


34 


27 


21 


17 


7.8 


7.4 


7.0 


8.5 


25 


181 


41 


33 


27 


21 


17 


7.4 


7.8 


7.0 


8.5 


27 


161 


41 


33 


26 


21 


17 


7.6 


7.9 


7.0 


9.9 


25 


141 


41 


33 


26 


21 


17 


7.6 


7.8 


7.2 


12 


25 


121 


41 


33 


26 


21 


17 


7.6 


7.8 


7.2 


12 


25 


101 


39 


33 


26 


21 


16 


7.6 


7.8 


7.2 


11 


25 


101 


39 


32 


26 


21 


a 16 


7.6 


7.8 


7.2 


11 


25 


81 


39 


32 


25 


21 


16 


7.6 


7.8 


7.2 


11 


25 


71 


39 


32 


25 


21 


16 


7.6 


7.8 


7.4 


11 


25 


61 


39 


31 


25 


21 


16 


7.6 


7.6 


7.4 


11 


25 


61 


37 


31 


2.5 


21 


15 


7.6 


7.6 


7.4 


11 


25 


51 


37 


30 


25 


21 


15 


7.0 


7.6 


7.4 


11 


25 


51 


36 


30 


25 


21 


15 


7.6 


7.6 


7.4 


13 


25 


51 


36 


30 


25 


21 


15 


7.6 


7.6 


7.4 


15 


25 


51 


36 


30 


25 


21 


15 


7.6 


7.6 


7.4 


15 


25 


47 


36 


30 


24 


21 


15 


7.6 


7.4 


7.0 


15 


33 


45 


36 


30 


24 


20 


15 


7.6 


7.4 


7.4 


61 




41 


36 


30 


24 


20 


15 


7.6 


7.4 


7.4 


61 




41 


36 


29 


23 


20 


15 


7.2 




7.4 


41 




41 




29 




20 


14 


13 


11 


9.5 


8.8 


7.8 


7.4 


16 


27 


31 


25 


16 


13 


11 


9.5 


8.8 


7.8 


7.6 


16 


28 


31 


25 


16 


13 


11 


9.5 


8.8 


7.8 


7.3 


16 


34 


31 


25 


15 


12 


10 


9.2 


8.8 


7.8 


7.8 


16 


34 


30 


25 


15 


12 


10 


9.2 


8.8 


7.8 


9.7 


16 


33 


30 


23 


15 


12 


10 


9.2 


8.8 


7.8 


17 


16 


33 


30 


21 


14 


12 


10 


9.2 


8.8 


7.8 


12 


16 


33 


29 


21 


14 


12 


10 


9.2 


8.8 


7.8 


11 


16 


33 


29 


21 


14 


12 


10 


9.2 


8.6 


7.7 


11 


17 


33 


29 


20 


14 


12 


10 


9.2 


8.2 


6.9 


20 


17 


33 


29 


18 


13 


12 


10 


9.2 


8.2 


7.8 


18 


20 


35 


28 


18 


13 


12 


10 


9.2 


8.2 


7.8 


a 16 


20 


35 


28 


18 


13 


12 


10 


9.2 


8.2 


7.8 


15 


20 


35 


28 


18 


12 


12 


. 10 


9.2 


8.2 


7.8 


17 


20 


35 


28 


18 


12 


12 


10 


9.2 


8.2 


7.8 


17 


21 


34 


28 


18 


12 


12 


10 


9.2 


8.2 


7.8 


18 


21 


34 


28 


18 


12 


12 


10 


9.2 


8.2 


7.7 


18 


22 


34 


28 


18 


12 


12 


10 


9.2 


8.2 


7.6 


18 


22 


34 


28 


18 


12 


12 


10 


9.2 


8.2 


7.6 


18 


23 


34 


27 


17 


12 


12 


10 


• 8.8 


8.2 


7.6 


17 


24 


34 


26 


17 


12 


12 


10 


8.8 


7.9 


7.6 


17 


24 


34 


25 


17 


12 


12 


10 


8.8 


7.8 


7.6 


17 


25 


34 


25 


17 


12 


12 


10 


8.8 


7.8 


7.6 


17 


24 


34 


25 


17 


12 


12 


10 


8.8 


7.8 


7.6 


17 


26 


34 


25 


16 


12 


11 


10 


8.8 


7.8 


7.6 


17 


27 


34 


25 


16 


12 


11 


10 


8.8 


7.8 


7.6 


17 


27 


34 


25 


16 


12 


11 


10 


8.8 


7.8 


7.4 


17 


28 


33 


25 


16 


12 


11 


10 


8.8 


7.8 


7.4 


17 


27 


32 


25 


16 


12 


11 


9.5 


8.8 


7.8 


7.3 


16 


27 


31 


25 


16 


12 




9.5 


8.8 


7.8 




16 


27 


31 


25 


16 


12 


11 




8.8 


7.8 




17 




31 




16 


12 



a Interpolated by United States Geological Survey. 

• Note.— The following notes accompanied the records as furnished to the Survey: Apr. 3 and 4, 1903, 
plantshut down; Apr. 20-24, 1903, changing transformers; Nov. 26, 1904, to Feb. 26, 1905, no record, addition 
being made to power house; beginning Aug. 25, 1907, measurements were made below intake instead of 
above as heretofore. 



142131°— 21— M^SP 447- 



-22 



338 SURFACE WATER OF PACIFIC SLOPE, SOUTHEPv:>sr CALIFORNIA. 

Baihf discharge, in second-feet, of San Antonio Creek near Upland, Calf,, for 1901-1917 — 

Continued. 



Jiiiy. 



Aug. 



Sept. 



1912-13, 
1 

s'.'.'.'.'.'.'i'.l. 

6 

S.]...."l 

9 

10 

11 

12 , 

13 

14 

15 

16.......... 

17 

18.......... 

19 

20 

21 

22 

23 

24... 

25. 

2G 

27 

28.. 

29 

30 

31 



9.6 
9.6 
9.0 
11.0 
11.0 

11.0 
10.0 
9.5 
9.5 



9.5 
9.5 
9.0 
9.0 

9.0 
9.0 
9.0 
9.0 
9.0 

9.0 
9.0 
9.0 



8.6 
8.6 
8.6 
8.6 

8.6 

8.6 
8.0 
8.6 
8.0 
8.6 

8.6 
8.6 



8.7 
6.5 
6.5 
0.5 
6.5 

6.5 
6.8 
6.8 
6.8 
6.8 

6.8 
6.8 



y.u 
9.0 


8. Y 
8.7 


9.0 


8.7 


9.0 


8.7 


9.0 


8.7 


«.o 


8.7 


9.0 


8.7 


9.0 





8.7 
8.7 

8.7 
8.7 



7.6 
7.6 
7.6 



11.0 
8.7 
8.2 



7.8 
7.8 
7.8 
7.8 

7.8 
7.6 
7.« 



11.0 
12.5 

12.3 
10.9 
10.9 



10.0 
9.5 
9.5 
9.0 
9.0 



9.5 
9.5 



9.5 
9.5 
9.5 
9.5 
9.5 

9.5 
9.5 
10.0 
10.0 
10.0 

10.0 
10.0 
10.0 
10.0 
10.0 
10.0 



10.0 
10.8 
10.8 
10.8 
11.0 



11.9 
12.5 
12.7 
12.7 

13.6 
15.0 
15.0 
15.0 

16.2 

16.9 
16.9 
16.9 
17.4 
17.4 

16.9 
16.9 
16.9 
16.9 
16.5 

16.5 
16.5 
16.0 
16.0 
16.0 



16.0 
16.0 
16.0 
16.4 
16.4 

16.4 
16.4 
16.4 
16.0 
16.0 

15.4 
15.4 
15.2 
15.0 

14.5 

14.5 
14.0 
14.0 
13.5 
13.5 

13.0 
13.0 
13.0 
14.3 
15.1 

15. G 
15.6 
16.0 
15.6 
15.6 
15.6 



15.1 
15.1 
15.0 
14.5 
14.5 

14.3 
14.3 
14.3 

13. 7 

13.4 ; 

13.4 
13.2 
13.2 
12.9 
12.9 

12.4 
12.4 
12.4 
12.0 
12.0 

11.7 
11.7 
11.7 
11.4 
11.4 

11.4 
11.4 
11.4 
11.1 
11.1 



10.6 
10.4 
10.4 
10.2 
10.2 

10.2 
9.0 

10.2 
9.9 
9.9 



9.4 
9.4 



8.1 
8.1 

8.8 



8.9 
8.7 
8.7 



9.2 
9.2 
9.0 

8.7 
8.7 
8.7 



8.7 
8.4 
8.4 
8.3 
8.3 

8.3 
8.0 



8.2 
8.0 
7.0 

7.6 
7.6 



7.5 
7.5 



7.4 
7.5 



7.4 
7.4 
7.1 
7.2 
7.1 



7.1 

7.1 
7.2 
7.1 
7.0 

7.0 
7.0 
7.0 
6.9 
7.0 

7.0 
7.0 



7.0 

6.8 
0.5 



6.7 
6.7 
6.7 
6.7 
6.7 



Note.— No record Nov. 
Survey. 



20, 21, 28, 29, Dae. 1. and May 13; discharge interpolated by U. S. Geol. 



1913-14, 
1 

4... 

5 

6. 

S.......V. 

lO'.'.'.'.'.'.'.'.'. 

11 

12 

13 

14 

15.. 

18 

17 

18 

19 

20 

21 

22 

23 

24 

25..... 

26 ., 

27 , 

28 

29 

30 

31.... 



6.7 


6.2 


6.6 


6.6 


39 


199 


36 


35 


32 


27 


23 


6.7 


6.0 


6.6 


6.5 


37 


179 


36 


35 


32 


26 


23 


6.7 


6.6 


6.6 


6.5 


35 


159 


36 


35 


32 


28 


22 


6.7 


6.2 


6.6 


6.5 


35 


139 


36 


35 


32 


26 


22 


6.7 


6.6 


6.6 


6.5 


34 


119 


36 


35 


32 


26 


22 


6.7 


6.6 


6.5 


6.5 


33 


109 


35 


35 


32 


26 


21 


6.7 


6.2 


6.5 


6.5 


32 


99 


35 


35 


32 


26 


21 


6.7 


6.0 


6.5 


6.5 


31 


89 


35 


35 


32 


26 


20 


6.7 


6.2 


6.5 


6.5 


30 


79 


34 


34 


32 


26 


20 


6.7 


6.2 


6.5 


6.5 


30 


69 


34 


34 


32 . 


26 


20 


6.6 


6.2 


6.5 


6.6 


30 


59 


34 


34 


31 


26 


20 


6.6 


6.8 


6.5 


6.5 


30 


55 


33 


34 


31 


26 


20 


6.7 


6.6 


6.5 


6.5 


30 


49 


39 


34 


31 


26 


19.1 


6.7 


6.6 


6.5 


6.6 


29 


43 


33 


34 


31 


26 


19.1 


6.6 


6.5 


6.5 


9.4 


27 


43 


33 


34, 


31 


26 


18.6 


6.6 


6.3 


6.5 


9.4 


27 


43 


33 


34 


31 


26 


18.6 


6.6 


6.3 


6.5 


8.8 


27 


43 


33 


33 


30 


26 


18.6 


G.2 


6.3 


6.5 


21 


27 


43 


33 


33 


30 


26 


18.6 


6.6 


7.7 


6.5 


14 


47 


43 


33 


33 


29 


26 


18.6 


6.6 


7.0 


6.5 


9.9 


507 


41 


33 


33 


29 


25 


18.6 


6.0 


6.6 


6.5 


11.6 


607 


41 


33 


33 


29 


25 


18.3 


6.6 


6.6 


6.5 


13.2 


567 


41 


33 


33 


28 


25 


18.3 


6.6 


6.6 


6.5 


13.8 


527 


41 


33 


33 


28 


25 


18.3 


6.6 


6.6 


6.5 


21 


487 


41 


33 


33 


28 


25 


18.3 


6.0 


6.5 


6.5 


25 


427 


39 


33 


33 


28 


25 


18.3 


6.0 


6.6 


6.5 


108 


387 


39 


33 


33 


28 


25 


18.3 


G.6 


6.6 


6.5 


58 


339 


36 


33 


33 


27 


24 


18.3 


7.0 


6.6 


6.5 


61 


258 


37 


33 


33 


27 


24 


18.0 


6.6 


6.6 


6.5 


51 




37 


33 


33 


27 


24 


18.0 


6.0 


6.6 


6.5 


51 




37 


35 


33 


27 


24 


17.7 


6.0 




6.5 


43 




m 




S3 




23 


17.7 



17.5 
17.0 
16.5 
16.5 
15.6 

15.6 
15.6 
15.6 
15.6 
15.5 

15.5 
15.5 
15.1 
15.3 
15.5 



15.3 
15.1 

15.1 

15.1 
15.1 
14.7 
14.7 
14.7 

14.7 
14.5 
14.5 
14.5 
13.9 



SANTA A>TA RIVER BASIIT. 



339 



Daily discharge, in second-feet, of San Antonio Creeh near Upland, Calif ., for 1901-1917 

Continued . 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1914-15. 
1 


14.5 
14.3 
15.3 
13.9 
13.1 

14.3 
13.9 
13.9 
13.9 
13.9 

13.9 
13.2 
13.2 
13.2 
13.2 

12.9 
12.9 
12.9 
12.6 
12.6 

12.6 
12.1 
12.6 
12.6 
12.6 

12.4 
12.4 
12.6 
12.4 
12.6 
12.6 

13.8 
13.8 
13.5 
13-2 
13.5 

13.8 
13.8 
13.5 
13.5 
13.5 

13.5 
13.2 
13.2 
13.2 
13.2 

12.9 
12.9 
12.7 
12.7 
12.7 

12.4 
11.9 
11.5 
11.5 
11.5 

11.5 
11.5 
11.5 
11.7 
11.5 
11.3 


12.4 
12.4 
12.4 
12.1 
12.1 

12.1 
12.1 
11.8 
11.8 
11.8 

12.1 
12.1 
11.8 
11.8 
11.8 

11.4 
11.4 
11.0 
11.0 
11.0 

11.0 
11.0 
10.8 
10.8 
10.8 

10.8 
10.5 
10.8 
10.8 
10.8 

10.7 
1L5 
il.7 
iLS 
11.5 

11.9 
11.7 
11.5 
11.9 
11.9 

11.8 
11,7 
11.2 
11.5 
11.5 

11.5 
11.5 
11.5 
11.5 
11.2 

11.2 
11.2 

11.0: 

11.0 
11.0 

11.0 
11.0 
11.0 
10.7 
10.7 


10.8 
10.8 
10.8 
10.8 
10.8 

10.8 
10.8 
10.8 
10.5 
10.5 

10.5 
10.8 
10.8 
10.5 
10.5 

10.3 
13.6 
12.3 
10.9 
10.5 

10.9 
10.9 
10.5 

m.5 

10.5 

10.5 
10.9 
10.9 
10.9 
10.9 
10.9 

10.7 
10.7 
10.7 
11.9 
10.7 

11.0 
10.7 
10.7 
10.7 
10.7 

10.7 
10.7 
10.7 
11.9 
11.4 

10.7 

m.7 

10.3 
10.3 
10.3 

10.2, 
]0.2 
10,2 
9,9 
10.2 

10.2 
10.2 
9.9 
9.9 
9.9 
9.9 


10.9 
10.9 
10,9 
10. 9 
10.9 

10.9 
10.9 
10.9 
10.9 
10.9 

10.9 
10.9 
10.3 
10.3 
9.8 

10.3 
9.8 
9.6 
9.8 
9.8 

9.6 
10.3 
9.8 
9.6 
9.8 

9.8 
9.8 
9.8 

42 

39 

16 

9.9 
12.9 
11.9 

m.3 

11.0 

11.0 
10.7 
10.3 
11.5 
11.5 

11.9 
11.2 
11.2 
11.2 
11.7 

1L5 

18.6 

'306"' 
200 
150 
150 

150 
150 
200 
150 
150 
120 . 


18.0 

23 

29 

25 

23 

23 
21 
21 
22 
118 

108 
108 
108 

99 

79 

79 
79 
69 
69 
69 

65 
65 
65 
65 
65 

65 
59 
59 

100 
100 
100 
100 
80 

80 
70 
60 
60 
51 

40 
30 
20 
30 
30 

25 
25 
22 
41 
41 

39 , 
39 : 
39 
37 ^ 

37 

41 \ 
49 

41 : 

41 \ 


59 
59 
59 
59 
59 

59 
54 
53 
53 
49 

49 
49 
47 
47 
45 

45 
43 
39 
39 
39 

39 
35 
35 
3S 
35 

35 
35 
35 
36 
36 
35 

41 
41 
41 
39 
39 

39 
39 
38 
40 
40 

41 
41 
41 

42 
42 

41 
42 
42 
42 
43 

49 
49 
49 
49 
49 

49 
47 
47 
47 
47 
45 


31 
35 
35 
35 
35 

35 
35 
35 
35 
35 

35 
35 
35 
35 
35 

35 
35 
35 
35 
35 

35 
35 
35 
35 
35 

35 

35 
35 
35 
43 

45 
45 
45 
41 
41 

39 
39 
37 

37 
37 

37 
37 

37! 
35 
35 

31 

31 

31 

29; 

29 

29 
29 
29 
29: 

27 ' 

27 
27 i 
27 
25 
25; 


43 
46 
46 
46 
46 

46 
46 
46 
43 
43 

43 
43 
43 
43 

43 

43 
43 
43 

47 
47 

47 
45 
45 
45 
45 

45 
45 
45 
45 
45 
43 

25 
25 
25 
25 
25 

25 
25 
25 
25 
25: 

23 
23 
23 
23 
23 

23 
23 
22 
22 
23 

23 
23 
23 
22 
22 i 

22 : 
22! 
22 
22 
22 
22 


43 
45 
43 
43 
43 

43 
43 
43 
43 
43 

41 
41 
41 
39 
39 

39 
39 
37 
37 
37 

37 
37 
37 
37 
37 

37 
35 
35 
33 
33 

22 
22 
22 

22 . 
22 

22 
22 
22 
22 
22 

22 
22 
22 
22 
22 

22 
22 
22 
22 
22 

19.6 
19.6 
19.6 
18.6 
18.6 

18.6 : 
18.6 
18.6 
18.6 
18.6 


33 
33 
33 
33 
33 

31 
31 
31 
31 
29 

29 
27 

27 
27 

27 

27 
27 
26 
26 
26 

26 
25 
25 
25 
24 

24 
24 
23 
23 
23 
23 

18.6 
18.6 
18.6 
18.6 
18.6 

18.6 
18.6 
18.6 
18.6 
18.6 

18.6 
18.6 
18.6 
18.6 
18.6 

18.6 
18.6 
18.6 
18.0 
18.0 

18.0 

17.7 
17.7 
17.7 
17.7 

17.4 
17.4 
17.4 
17.4 

17.4 
17.4 


23 
22 
22 
22 

22 

22 
22 
21 
21 
21 

21 

21 

19.6 

19.6 

19.6 

19.6 
19.6 
19.6 
19.6 
19.1 

19.1 
19.1 
18.9 
19.1 
18.6 

18.0 

21 

19.6 

19.1 

19.1 

19.1 

17.4 
17.4 
17.4 
17.4 
17.4 

15.1 
17.4 
15.2 
14.3 
15.0 

16.0 
15.2 
15.2 
15.0 
15.0 

14.7 
14.6 
14.7 
14.7 
14.7 

14.5 
14.1 
14.1 
13.8 
13,8 

13.8 
13,6 
13.5 
13,2 
13,5 
13.5 


19.1 


2 


19.1 


3 


19.1 


4 


18.6 




18.6 


r, 


18.6 


7 


18.3 


8 


18.0 


9 


17.7 


10 


17.7 


11 


17.4 


12 


17.1 


13 


17,1 


1-1 


17.1 


15 


17.1 


16 


16.7 


17 - . 


16.0 


IS 


16.0 


19 


14.7 


20 


14.3 


21 


15.2 


22 


15.2 


23 


15.0 


24 


15.3 


25 


16.0 


26 


15.2 


27 


14.7 


28 


14.1 


29 


14.3 


30 


14.1 


31 




1915-lG. 
1 


13.5 


2 


13.2 




12 9 


4 


12.9 


5 


12.7 


c> 


12.9 


7 


12.9 


s 


12.9 


9 


12.4 


liO 


12.9 


11 


12.4 


12 


12,4 


13 


12.2 


14 


11.4 


15 

IG 


11.1 
12.2 


17 


12.1 


18 

19 


12.2 
11.9 


20 


11,9 


21 


11.9 


22 

23 


11.9 
11.9 


24 


11.9 


o^ 


il 5 


25 

27 

28 


11.5 
11.2 
11.2 


29 


11 2 


3o:::::. :::::::: 


11.7 


31 





340 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in sccond-fcet, of San Antonio Creek near Upland, Calif., for 1901^19 17- 

Contimied. 



Da3^ 


Oct. 


Nov. 


Pec. 


Jan. 


Day. 


Oct. 


Nov. 


Dec. 


Jan. 


1916-17. 
1 


11 
14 
14 
14 
14 

15 
15 
15 
15 
15 

15 

\l 
It 


13 
13 
13 
12 
14 

14 
13 
13 
13 

13 

13 
13 
12 
12 
12 


11 
12 

12 
12 
12 

12 
12 
12 
12 
12 

12 
12 
12 
12 
12 


12 
12 
12 
12 
12 

12 
12 
12 
12 
12 

12 
12 
12 
12 
12 


1916-17. 
16 


14 
14 
14 
14 
14 

14 
14 
14 
14 
12 

12 
12 
12 
13 
13 
14 


12 
12 
12 
12 
12 

12 
12 
12 
12 
12 

12 
12 
12 
12 
12 


12 
12 
12 
12 
12 

12 
12 
11 
17 

17 

14 
12 
12 
12 
12 
12 


12 


2 


17 


12 


3 


18 


12 


4 


19 . 


14 


5 


20 


13 


6 


21 


13 


7 


22 


14 


8 


23 


14 


9 


24 


14 


10 


25 


13 


11.. 


26 


13 


12 


27 


13 


13.. ............ 


28 


13 


14 


29 


13 


15 


30 


13 




31 


. 13 









Monthly discharge of San Antonio Creeh near Upland, Calif., for 1901-1917. 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



Run-off 
(total in 
acre- 
feet). 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



Run-off 
(total 
ina;cre- 

feet). 



1901. 
March 11-31. 

April 

May 

June 

July 

August 

September. . 



The period . 

1901-2. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year. . . 

1902-3. 

October 

November 

December 

January 

February 

March 1-28 

April (23 days). 

May 

June 

July 

August 

September 

1903-4. 

October 

November 

December 

January 

February 



8.7 
7.7 
6.3 
6.3 
6.8 
8.3 
9.3 
11 
9.7 
6.8 
6.1 
5.3 



4.6 
4.9 
4.6 
6.3 
6.3 
9.0 
200 

16 

20 

18 

12 
9.9 



8.7 
7.4 
7.1 
6.6 

8.4 



5.4 
5.0 



6.3 
6.0 

6.0 
5.7 
6.3 
8.3 
9.3 
6.5 
6.0 
6.2 
4.6 



4.2 
4.4 
4.4 
6.0 
6.0 

14 

16 

16 

13 



6.0 

3.4 



5.53 
8.19 
16.7 
15.7 
12.4 
9.42 
8.11 



7.22 
6.91 
6.23 
6.04 
5.90 
7.43 
8.60 
10.6 
8.07 
6.29 
5.45 
4.90 



4.50 
4.37 
4.46 
4.67 
6.02 
7.30 
30.2 
16.0 
18.6 
15.6 
11.1 
9.25 



7.94 
7. 27 
6.90 
6.56 
6.31 



230 

487 

1,030 

934 

762 
579 
483 



4,500 



444 
411 
383 
371 
328 
457 
512 
652 
480 
387 
335 
292 

5,050 



277 
260 
274 
287 
330 
404 

1,385 
984 

1,110 
959 
682 
550 



433 
424 
403 

363 



1903-4— Contd. 

March 

April 

May 

June 

July 

August 

September. . . . 

The year 

1904-5. 
October. .. — 
November 1-25 

March 

April 

May 1 

June 

July 

August 

September 

1905-6. 

October 

November 

December 

January 

February. . 

March 

April : . . . 

May 

June 

July 

August 

September 

The year. . 

1906-7. 

October 

November 

December 

January 

February 

March .:.. 

April , 

May 



17.0 

15.0 

17 

14 
9.3 
8.3 



6.3 
5.4 

400 
70 
36 
34 
32 
20 
14 



12 
13 
12 
15 
22 
300 
240 
110 
100 
80 
30 
22 



15 
13 

18 
32 
60 
160 



11.0 
15.0 
10 

7:5 
6.8 
6.0 



8.11 
12.5 
15.5 
11.5 
8.32 
7.41 
6.39 



5.4 
5.4 

18 

30 

30 

30 

20 

14 

12 



10 
10 
11 
9. J 
13 
16 
90 
80 
80 
30 
22 



16 
32 
60 
100 



5.63 
5.40 
106 
?9.8 
33.9 
32.4 
24.0 
16.6 
12.8 



11.2 
11.3 
11.0 
11.1 

13.8 
146 
122 

84.5 
88.3 
47.4 
28.2 
17.3 



13.5 
12.0 
13.4 
25 4 
47.0 

121 

113 



499 
744 
953 
684 
512 
456 
380 



6,340 



6,520 
2,370 
2,080 
1, 930 
1,480 
1,020 
, 762 



672 

676 

682 

766 

8,980 

7,260 

5,200 

5,250 

2,910 

1,730 

1,030 

35, 800 



714 
824 
1,560 
2,610 
7,440 
6,720 
5,520 



SANTA ANA EIVER BASIN, 



841 



Monthly discharge of San Ardonio CraJc near Upland^ CGlif..j'(i 1901 -19 j7 — ('ontmr.ed. 



Discharge in sceond- 

fect. 



raum. mum. 



19O0>-7— Contd, 

JxHie... 

July 

August 

September 



The year . 



1907-8. 

October 

November... 
December... 

January 

February — 

March 

April 

May 

June 

July 

Augast 

September... 



The year. 



1908-9. 

October 

November... 
December... 

January 

February 

March 

April 

May 

June 

July 

Augast 

September... 



The year. .. 



1909-iO. 

October 

November — 

December 

January 7-31.. 

February 

March 

April 

May 

June 

July 

August 

September — 

1910-11. 

October 

November — 

December 

January 

February 

March 

April 

May 

June 

July..... 

August 

September.... 



The year.. 
1911-12. 

October 

November 

December 

January 

February 

March 

AprO 



15 
14 
1-2 

17 
16 
31 
35 
36 
22 
16 
14 
10 



9.0 
8.5 

-8.5 
130 
101 
101 
101 

81 

71 

27 

19 

15 



27 
211 
51 
33 
27 
22 
16 
14 
11 
9.0 



7.9 
7.4 

61 

41 
S21 

43 

36 

29 

23 

19 

15 



13 
11 
9.5 



20 

28 



21 
15 



12 
11 
9.7 

14 
15 
27 
22 
16 
12 
10 
9.0 



57.7 
28.7 
21.7 
17.3 



16.7 



14.8 
13.1 
11.2 
11.2 
15.5 
18.5 
29.7 
26.6 
19.4 
13.7 
11.7 
9.22 



9. j 16. 2 



31 

80 
81 
81 
29 
18 



8.64 
7.98 
8.25 
24.4 
72.7 
87.4 
83.0 
81.0 
46.9 
23.6 
16.4 
13.0 



39.2 



14 
11 



7.0 
7.2 
7.0 
6.6 

25 

35 

36 

29 

23 

20 

14 

12 



9.5 
8.8 
7.8 
6.9 
7.3 
16 



11.5 

10.9 
16.8 
139 
45.1 
25.6 
24.6 
19.7 
15.3 
12.4 
10.0 
8.29 



7.60 
7.59 
7.29 
14.3 
27.7 
85.9 
39.3 
32.6 
26.6 
21.2 
16.6 
13.2 



Run-off 
(total in 
acre- 
feet). 



3,430 
1,760 
1,330 
1,030 



33, 800 



1911-li-Contd. 

May 

June 

July 

August 

September 



689 

689 

892 

1,140 

1,770 

1,640 

1,150 

842 

719 

549 



11,800 



531 

475 

507 

1,500 

4,040 

5,370 

4,940 

4,980 

2, 790 

1,450 

1,010 

774 



28,400 



707 

649 

1,030 

6,890 

2,500 

1,570 

1,460 

1,210 

, 910 

762 

615 

493 



25.0 



11.9 
10.1 
9.07 
8.23 
7.66 
15.1 
21.2 



467 

452 

448 

879 

1,540 

5,280 

2,340 

2,000 

1,580 

1,300 

1,020 

786 



18, 100 



732 
601 
558 
506 
441 
928 
1,260 



The year. . 



1912-13. 

October 

November... 
December . . . 

January 

February 

March 

April 

May 

June 

July 

August 

September... 



The year... 



1913-14. 

October 

November... 
December . . . 

January 

February — 

March 

April 

May 

June 

July 

Augu.st 

September... 



The year . 



1914-15. 

October 

November... 
December . . . 

January 

February 

March 

April 

May 

June 

July 

August . . 

September... 



The year.. 

1915-16. 

October 

November — 
December. . . . 

January 

February 

March 

April 

May 

June 

July 

August 

September 



The year. . 

1916-17. 

October 

November 

December 

January 



Discharge in second- 
feet. 



Maxi- 
mum. 



35 
31 
25 
16 
12 



12.5 
10.0 
17.4 
16.4 
15.1 
10.6 
8.7 
7.2 



17.4 



15.3 
12.4 
13.6 
42 
118 
59 
43 
47 
45 
33 
23 
19.1 



13.8 
11.9 
11.9 



100 
49 
45 
25 
22 
18.6 
17.4 
13.5 



Mini- ' 
mum, I 



16 
12 



9.0 
8.6 
8.7 
6.5 
7.1 
9.0 
10.0 
13,0 
11.1 



33.1 
27.5 
18.7 
12.9 
10.3 



15.5 



9.36 
8.65 
8.70 

7.24 
8.45 
9.56 
14.7 
15.1 
12.8 
9.33 
7.76 
6.87 



6.0 

. 6.0 
6.5 
6.5 

27 

36 

33 

33 

27 

23 

17.7 

13.9 



12.1 
10.5 
10.3 
9.6 
18.0 
35 
31 
43 
33 
23 
18.0 
14.1 



9,6 



11.3 

10.7 



22 

38 

25 

22 

18.6 

17.4 

13.2 

11.1 



6.54 
6.50 
6.52 
19.7 
168 
68. 
34.1 
33.8 
30.0 
25.5 
19.5 
15.4 



35.3 



13.2 
11.5 
10.9 
12.5 
60.6 
45.0 
35.1 
44.6 
39.3 
27.5 
20.2 
16.6 



27.8 



12.7 
11.4 
10.5 



51.0 
43.3 
33.7 
23.3 
21.0 
18.2 
15.0 
12.2 



13.5 
12.4 
12.3 
12.5 



Note.— Tables of monthly discharge computed by U. S. Geological Survey. 



342 SUEFAGE WATEE OF PACIFIC SLOPE, SOUTHEEIST CALIFORNIA. 
MISCELLANEOUS MEASUREMENTS OF SAN ANTONIO CREEK. 

DiscJiarge rneasuremenU of San Antonio Creeh at dircrdon dam near Claremont^ Calif., 

for 1888-19 IG. 

{Made by F. E, Trask] 



Dis- 
charge. 



Dis- 
charge. 



July IG 



July 15.. 
Aug. 1.. 

15.. 
Sept. 2.. 

16.. 
Oct. 1.. 

17.. 
Nov. 2.. 
Dec. 2.. 



July 15.. 
Aug. 1.. 

15.. 
Sept. 6.. 

15.. 



Jaiy 15.. 
Aug. 1.. 



Sept. 1.. 
Sept. 15. . 



July 15.. 
Sept. 15.. 
Not. 19.. 



June 20.. 
July 15.. 
Aug. 15.. 
Sept. 15.. 
Oct. 15.. 
Nov. 12.. 
Dec. 16.. 



Mar. 24.. 
May 11.. 
July 16.. 



July 15.. 

Aug. 22.. 
Sept. 7.. 



June 25., 
July 15.. 
Sept. 15. . 
Nov. 2.. 
Dec 26.. 



Jan. 25.. 
Feb. 8.. 

22.. 
July 6.. 

19.. 
Aug. 2.. 

16.. 



Oct. 4 



Mar. 16.. 
AIM". 4., 

my 4.. 



24 
33 



38 
32 
27 
22 
19 



20 
15 
13 
11 



11 
11 
6.0 



5.8 
5.4 
6.4 
6.0 



10 
9.2 



: 13SS, 

June 6 

Jaly 5 

Aug. 15 

Sept. 5 

Oct. 2 

No\'. 6 

Dec. 5 

1899. 

Jan. 3 

Feb. 6 

Mar. 6 

Apr. 5 

Mav 1 

July 3 

Aug. 7 

Sept. 3 

Oct. 2 

wm. 

.Tan. 1 

Feb. I 

Mar. 5 

Apr. 1 

May 7 

June 4 

.Tuir 1 

Aug. 6 

Sept. 1 

Oct. 8 

1902. 

June 2S 

Julv 5 

Aue;. 2...... 

Sept. 6 

Oct. 4 

1903. 

Jan. 19 

Mar. 16 

Apr. 24 

June 25 

July 29 

Aug. 24...... 

Oct. 6 

Dec. 1...... 

1904. 

Jan. 22 

Feb. 8 

Mar. 5 

Apr. 

June 4 

July 8 

Aug. 11...... 

Sep't. 7 

Oct. 7 

Nov. 5 

Dec. 9 

1905 

Jan. 19 

Mar. 6 

Apr. 4 

May 8 

June 10 

July 15 

Aug. 8 

Sept. 11 

Oct. 11...... 

Nov. 9 .. 

Dec. 9 



Scc.^t. 



6.1 
4.6 



5.1 

5.4 
4.9 
5.7 
5.1 
3.3 
4.3 
4.5 
3.7 



5,3 

6.1 
6.4 
5.1 
6.1 
5.5 
4.8 
3.9 
3.6 
3.1 



6.8 
7.3 
5.2 
4.3 



4.4 
9.2 

72 

26 

14 

11 
9.7 
7.9 



7.8 
7.7 
7.9 

15 

14 

10 
7.6 
6.7 
6.3 
5,8 
5,8 



7,; 

18 
80 
58 
42 
24 
19 
14 
12 
15 
13 



1906. 

.Tan. 17 

Feb. 9 

Mar. 5 

Apr. 9 

May 3 

June 2 

July 10 

Aug. 9 

Sept. 8 

Oct. 5 

Nov.2 

Dec. 14 

1907. 

Jan. 14 

Feb. 11 

Apr, 13 

May 11 

June 6 

July 10 

Alls. 7 

Sept. 6 

Oct. 5 

Nov.8 

Dec.7 

1908. 

Jan. 11 

Feb. 22 

Mar. 16 

Apr. 6 

Mays 

June 6 

Ju]y6 , 

Aug. 6 

Sept.4 

Oct.9 

Nov.8 

Dec.3 , 

1909. 

Jan. 10 

Feb. 13 

Mar. 14 

Apr. 11 

May 10 

June 5 

July 12 

Aug.3- 

Sept. 13 , 

Oct. 12 

Nov. 5 

Dec. 13 

1910. 

Jan. 19 

Feb. 14 

Mar. 9 

Apr. 10 

May 7 

June 10 

July 10 

Aug. 9 

Sept.4 

Oct. 8 

Nov. 5 

Dec. 10 

1911. 

Jan. 14 , 

Feb. 6 , 

Mar. 16 , 

Mav 2 , 



SAKTA AISTA EIVER BASI]!T, 



843 



Discharge raeasuremients of San Antonio Creel- at diversion, dam upar Claremont Calif., 
for 1888-1916— Continued. 



1911. 

June 5 

Jiily 10 

Aug. 8 

Sept. 11 

Oct. 12 

Nor. 3 

Dec. 10 

1912. 

Jan. 7 

Feb. 10 

Mar. 17 

Apr. C) 

May 4 

Junes 

July 6 

Aug. 3 

Sept. 3 

Oct. 20 

Nov. 16 

Dec.8 



Dis- 
charge. 



Sec. -ft. 
6G 
24 
16 
13 
13 
13 
13 



10 
19 



22 
16 



Dis- 
charge. 



1913, 

Jan. 19 

Feb. 5 

Mar, 2 

Apr. 10 

May 6 

June 9 

July 13 

Aug. 1 

Sept. 8 

Oct. 3 

Nov. 10 

Dec.3 

1914, 

Jan. 13 

Feb. 

Mar. 4 

Apr. 11 

June 4 

July 11 

Aug. 11 

Sept. 12 



Scc.-ft. 
11 
10 
14 
18 
19 
IG 



7.4- 
7.2 
8.6 



72 
133 



51 
29 



1914. 

Oct. 10 

Nov, 14 

Dec. .5 

1915, 

Jan. II.. 

Feb. 8 

Mar. 8 

Apr. 10 

May 10 

June 8 

10 

A.ug. 12 

Sept. 4 

Oct.G 

Nov. 8 

Dec. 7 

1916, 

Jan. 8 

Feb. 7 

Mar. 8 

Apr. 7 



Dis- 
charge. 



Scc.-ff. 



15 

14 



13 
96 
112 



Note. — Measurements made by F. E. Trask furnished in miner's inches: coaverted by U. S. Geological 
Survey engineers, assuming on basis that 50 miner's inches equal 1 second-foot. 

Discharge measurements of San Antonio Creel', San Bernardino County, Calif., for 

1896-1903. 



Date. 


Made by- 


Locality. 


Dis- 
charge. 


July 23, 1896 






Sec-feet. 
7.9 


'Do 


do 




l.SS 


July 2 1898 


F. H. Olmsted 

do 


Mouth of canvon 


G.59 


Do 




3.36 


Aug 26, 1898 


do 




6.18 


\ug 25 1899 


S. G. Bennett 


Mouth of canvon 


4.48 


Julv 11,1900 


do 


do . 


4.07 


Sept 25,1900 


AV. W. Cockins,jr 

S. G. Bennett 

do 




3.72 


Oct 7 1900. 


do... 

do 


5.99 


Apr. 3,1902 


11.4 


Apr. 1,1903 


W. B.Clapp.. 


Mouth of caifvon 


854 


Do 


Clapp and Clausen 

"w.B.Clapp.! 


do 


57 


Do 







Mav 25,1903 


Mouth of canvon 


34 


*Do 


do 

...do 







Julv 3,1903 




19.5 


Sept. 13 1903 


.do 


-do .. .■ 


11 


Sept. 23,1904 


do 


do 


6.4 


1902. 
June 28 


J. B. Lippincott 

do 




7. 69 


July 12,11.40 a.m.... 

12,1.13 p.m 

Aug. 2,11.15 a.m 


-do . ... 


G.88 


do 

do 


do 

.do .... 


6.58 
6,15 


9,lla.m 

9, 1.12 p.m 

29,11.45 a.m ... 


...do 


do. . 


G. 15 


.do 


do 


5.99 


do 


.do 


5.61 


Sept. 29, 12.30 p.m 

Oct. 18,12.30 p.m... 


do 

. .do 


do 

do 


4.88 
4.74 


.....do 






Jvme 28 


6.56 


28 


.do 


Gird v.ater 


.42 




do 






6.98 


Julv 12,10.58a. m... 


5.76 


12 


.do 


Gird vf ater 


.35 




-do.. 








6.11 


12,2.40 p. m. .. 


5.20 


12 


do 




.35 












5.55 



S44 SURFACE WATEE OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Discharge jncasurcments of San Antonio Creek, San Bcnia>-dino Countif, Calif., for 1896- 
jS>0^— Continued. 



r>ate. 


Made by— 


Locality. 


Dis- 
charge. 


1902. 

A-Qf. 2, 10.30 a. m 

2 


J. B. Lippincott 

. .do 




Sec-feet. 
4.83 
.36 


<jrird water 




do 

.. ..do 


Division weir 






5.19 


2, 2.30 p. IB 

2. 


4 35 


Gird water 


.36 




.do 


Division Aveir . 






4.71 


9,10.18 a. rn.. 


4.76 





do 


Gird water 


35 




do 

. .do 


Division weir 






5.11 


9,2.40 p. m... 
9 


4. 18 


Gird water 


.35 




do 


Division weir 


4.53 


20 10 55 a. HI 


4 26 


29 


do 


Gird water '. 


.38 




do 

do 


Division weir 


4.64 


29, 2.27 p. m 


3.55 


Gird water . . 


38 




do 


Division weir . . . . 






3.93 


Sept. 27 lO 30 a m 


4.00 


27 


.. ..do 


Grird water. .- 


.33 




do 

do 






4.33 


27,2.15 p. m... 

27 . . 


3.57 


Gird water 


.33 




do 

...do 


Division weir 

Gird v.ater 


3.90 


Or-t. IH, 10.55 r..m 

18 


3.98 
.38 




.. ..do 


Fountain of Life spring— vv-eir measurement . . . 
do 






4.36 


June 28 


.34 


July 12, 12.15 p.m.... 
Aug. 2, 12.05 p.m.... 
9,11.42a.m.... 
29,12.20p.m.. 


-do - ... 


.34 


do 

do 

do 


do 

--...do 

do 


.30 

.32 
.29 


Sept. 27, 11.33 a.m.... 
Oct 18 12 m 


do 

do 


do 

do... . 


.29 
30 


Jime 28'. . . 


.do. ... 


San Antonio tunnel— Vveir measurement 

.do 


1.38 


July 12,10.36 a.m.... 

Aug. 2, 10. 10 a. m 

9, 10 a. m 


do 


1.27 


do 

do .- . 


do 

do 


1.19 
1.17 


30 10 30 a m 


do 


.do 


1. 15 


Sept. 27 10 12 a m 


do 


do 


l.ie 


June 28'. 

July 12 12 20p m 


do 

do 


San Gabriel Electric Co."s power house— con- 
crete weir basin— weir measurement, 
do . . 


7.40 
6.10 


Aug. 2,12 m-.. 


.do - . 


.do 


5.59 


9, 11.48 a. m 


do 


.do . . 


5.67 


29,12 30p m 


do 


do 


4.59 


Sept. 27,11.37a.m.. 


.do 


..do 


4.64 


Oct. 13,11.38 a.m. 


.do. 


.do 


4.31 


1902. 
Juno 28 


J. B. Lippincott 

do 


San Gabriel Electric Co.'s power house — weir 

measurement in crock. 
do 


.55 


July 12, 12.33 p.m... 

Aug. 2,12.10 p.m... 

9,12.11p.m... 

29,12.40 p.m... 

Sept. 27, 12 m 


.47 


.do. 


do 


.40 


do 

do 


do 


.40 


.....do 


.35 


do 


.do 


.36 


Oct. 18, 12 m 


do 


do 


.39 


Aug. 2,11.45 a.m... 
9, 11.22 a. m.. 


do 




6.31 


.do . . . 


do 


6.36 


9, 1 p. ra . 


do 


do 


5.88 


29, 12.07 p.m... 

29, 12.10 p.m... 
S^pt. 27, 12.05 p. m . . . 
Oct. 18, 12.12 p.m... 


do 

do 

do 

do 


.....do 


5.59 


do 


5.40 


do - 


5.28 


do 


5.01 







SANTA ANA PJYEK BASIN. ^^45 

Weir mmsuremcnts of Bern Antonio Creek at division box, Calif., for 1892-1903.- 
iMeasurraents by F. E. Trask.] 



1892. 

July 15 

Sept. 15 

Nov. 19 

1893. 

Aug. U 

30 

Sept. 25 

Oct. 25 

1894. 
July 16 

1895. 

JuJy 15 

Aug. 22 

Sept. 7 

1896. 

June 25 

JuJy 15 

Sept. 15 

1897. 

July 6 

Aug. 16 



Discharge. 



S(cond-fcct. 
12.50 
8.16 
7.09 



14.30 
12.72 
12.16 
10.84 



18.48 
16.78 
14.20 



6.58 
5.20 
5.44 



17.24 
10.82 



Sept. 20 

1898. 

July 5 

Aug. 1 

Sept. 5 

1899. 

July 3 

Aug. 7 

Sept. 3 

1900. 

July 1 

Aug. 6 

Sept. 1 

1902. 

July 21 

Aug. 16 

Sept. 13 

1903. 
Aug. 10 



; Discharge. 



d-fcct. 
9.24 



5.24 
4.72 

4.24 



2.98 
3.88 
4.06 



3.M 
3.22 



5.30 
4.22 
3.40 



9.40 
7.66 



July 18, 1888, float measurement by F. E. Trask showed 22.12 second-feet discharge for entire creek above 
division. (Excludes gird water=0.4 second-feet. Gird water purchased by the San Antonio Water Co., 
May, 1896, and diverted above division weir.) 



846 SURFACE WATER OF PACIFIC SLOPE, SOUTHERIST CALIFORNIA. 

DiscMrge measurements of San Antonio tunnel at the jjortal, Calif., for 1888-1964. 
[Measurement by F. E. Trask.] 



Date. 


Discharge. 


Date. 


Discharge. 


Apr 2 . . 


1888. 


Second-feet. 

4.84 
2.32 

.73 

1.61 
1.33 

1.26 
-91 
.61 
.61 

.57 
.86 
.81 

5.58 
2.57 
2.49 
2,23 
1.36 

4.93 
3.55 
2.74 

3.49 
2.98 

5.03 

2.72 
2.75 

1.79 
1.53 
1.45 

1.62 
1.52 
1.19 

1.93 
2.08 
1.72 


1897. 
Sept. 6 


Second-feet. 
1.32 


^ 15 ■ 


Oct. 4.. 


1.19 


Oct. 10 


1898. 
Mar. 16-. 






18S9. 


1.30 


Jan. JO 


Apr. 4 


1,30 


May 31 .... 


May 4 


1.21 




June 6 


1.42 


July 15 , 


July 5 


1:23 


Aug 15 


Aug. 1 


1.12 


Sept 2 


Sept. 5 


1.06 


Oct. 1 


Oct. 2 


.97 


Nov 2 


Nov. 6 


1.02 


Deo 2 --- 


Dec. 5 


1.05 


Jan 27 


1890. 


1S99. 
Jan 3 ... 


1,08 


Juno 12 


May 1 


1.09 


July 15 


July 3 


,97 




Aug 7 


.95 


Sept 15 


Dec. 31 


1.24 


July 15 


1891. 


1900. 
Fel). 1 


1.14 


Aug 15 - 


Mar. 5 


1.07 


Sept. 15 - - - - - 


Apr. 1 


1.01 




1892. 


May 7 


1.00 




July 1.. 


1.00 


July 16 


Oct. 8... 


1,00 


Sept 15 . -- 


1S02. 
June 28 






1893. 


1.35 


Julj"" 15 


July 5 


1.32 




1894. 


Aug. 2 - 


1.19 




Sept. 6 


1.14 


May 11 


Oct. 4 


1.08 


July 16 - 


1903. 
Jan. 19 






1895. 


.92 


July 15 


Mar. 16 


1.29 


Aug. 22 


Apr. 24. 


4.86 


Sept 7 ----- - 


July 29 


1.51 




1896. 


Aug. 24 


• 1.25 




Oct. 6.... 


.99 




Dec. 1 


1.07 


July 15. 


1904. 
Jan, 22 




Sept 15.. 






1897. 


1.07 




Feb. 8 


1.07 


Jan 25 




2.32 


July 19 


May 28 . 


1,60 






1.47 









SOITTHEHN CALIFORNIA EDISON CO.'S CANAL NEAR CLAREMONT, CALIF. 

Location. — In NW. | sec, 1, T. 1 N., R. 8 W., at weir in tailrace of Sierra power 

house, on San Antonio Creek, 1-| miles below intake, and 8 miles northeast of 

Claremont, Los Angeles County. 
Records available. — ^January 1, 1917, to September 30, 1918. 
Gage. — Hook gage, which indicates head on weir; read by B. F. Campbell, operator 

at power house. 
DiscHAEGE. — Computed from head on 10-foot rectangular weir. 
Accuracy. — Gage is read at 8 a, m. and 4 p. m. Discharge computed from weir table 

by observer. Records good. 
Cooperation. — Discharge record furnished by Southern California Edison Co. 

Canal diverts water from San Antonio Creek in the SE. | sec. 25, T. 2 N., R. 8 W., 
1 mile above gaging station on San Antonio Creek near Claremont. The water is 
used for power development at Sierra power house, in NW. I sec, 1, T. 1 N., R 8 W., 
and is then returned directly to creek. 



SAISTTA ANA RIVER BASIN. 



347 



Daihj dischm-qc, in second-feet, of Southern Califonvia Edison Co.'s canal 7iear Claremoni, 
Calif, for i9 17 -18. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr, 


May. 


June. 


July. 


Aug. 


Sept. 


1917. 
1 








12 
12 
12 
12 
12 

12 
12 
12 
12 
12 

12 
12 
12 
12 
12 

12 

12 

12 

14.5 

13 

13 

13.5 

13.5 

13.5 

13 

13 

13.5 

13.5 

13 

13 

13 

8.2 
8.2 
8.2 
8.1 
8.2 

8.1 
8.0 
8.1 
7.9 
8 

8.1 
8.0 
8.1 
8.0 
8.1 

8.1 
7.8 
7.9 
7.9 
7.9 

7.8 
7.9 
8.0 
7.8 
8.5 

8.2 
8.0 
7.9 

7.8 
7.8 
7.8 


13 
13 
13 
13 
13 

13 
13 
13 
13 
13 

13 
13 
13 
13 
13 

13.5 
14.5 
14.5 
14.5 
15 

15.5 
18.5 
17.5 
17.5 
21 

21 
21 
21 

7.4 

7.8 
7.8 
7.7 
7.8 

7.6 
7.8 
7.6 
7.6 
7.6 

7.6 
7.6 
7.6 
7.6 
7.0 

7.5 
7.6 
7.8 
7.6 
7.9 

10.3 
16.1 
11.0 
10.6 
10.1 

10.6 
10.1 
9.6 


21 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
21 
21 

21 

21 

21 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
21 
21 
21 

21 
21 

9.5 
9.4 
9.4 
95 
10.0 

12.2 
19.6 
19.7 
20.3 
20.4 

20.3 
20.2 
20.2 
20.3 
20.1 

19.6 
19.5 
19.6 
19.6 
19.6 

19. G 
19.6 
19.6 
19.6 
19.6 

19.6 
19.6 
19.6 
19.6 
19.6 
19.6 


21 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
21 
21 

21 
21 

21 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
21 

21 
21 
21 

19.4 
19.4 
19.4 
19 4 
19.4 

19.4 
19.4 
19.4 
19.4 
19.4 

19.4 
19.4 
19.4 
19.4 
19.4 

19.4 
19.4 
19.4 
19.4 
19.4 

19.4 
19.4 
19.4 
19.4 
19.4 

19.4 
19.4 
19.4 
19.4 
19.4 


21 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
21 
21 

21 
21 

21 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
21 
21 
21 
21 
21 

19.4 
19.4 
19.4 
19 4 
19.4 

19.4 
19.4 
19.4 
19.4 
19.4 

19.4 
19.4 
19.4 
19.4 
19.4 

19.4 
19.4 
19.4 
19.4 
19.4 

19.4 
19.4 
19.4 
19.4 
19.4 

19.4 
19 4 
19.4 
19.4 
19.4 
19.4 


21 
21 
21 

21 

21 
21 
21 
21 
21 

21 
21 
21 

21 
21 

21 
19 
19 
19 

19 

19 
19 
19 
19 

19 
19 
19 
19 

19 

19.4 
19.4 
19.4 
19.4 
19.4 

19.4 
19.4 
19.4 
19.4 
19.4 

19.4 
19.4 
19.4 
19.4 
19.4 

19.4 
19.4 
19.4 
19.4 
19.4 

19.4 
19.3 
18.9 
19.1 
18.9 

19.2 
19.4 
19.0 

18.8 
18.6 


19 

19.5 

19 

19 

19 

19 
19 
19 
18 

18 

18 

18 

17.5 

17.5 

17 

17 
17 
17 
17 
16 

16 
16 
16 
16 
15 

16 

18 

17.5 

17 

16.5 

16.5 

18.6 
18.7 
18.5 
18.3 
18.3 

18.1 
17.8 
17.8 
17.6 
17.4 

17.4 
17.3 
17.1 
17.4 
17.0 

16.5 
16.5 
16.0 
15.9 
16.0 

15.6 
15.4 
15.9 
15.3 
15.2 

15.1 
15.0 
15.0 
14.9 
14.5 
14.5 


15.5 
15.5 
15 5 
15.5 
15.5 

15.5 

15 

15 

15 

14.5 

14.5 

15 

14.5 

14.5 

14 

14 

14 

14 

13.5 

13.5 

13 

13 

13.5 

13 

13 

13 
13 
13 
13 

13 
12.5 

15.1 
14.6 
14.2 
14.1 
14.3 

13.8 
14.1 
14.0 
14.0 
13.8 

13.4 
13.5 
13.4 
13.4 
13.6 

13.5 
13.3 
13.2 
13.1 
13.0 

12.6 
12.8 
12.7 
12.5 
12.3 

12.4 
12.0 
12.3 
12.3 
11.8 
11.9 


12.5 


2 








12.5 


3 








12 


4 








12.5 


5 








12.5 


g 








12 


7 








12 


8 








12 


9 








12 


10 








U 










11.5 


12 








11.5 


13 








11 


14 








11.5 


15 








11 


16 








11.5 


17 








11 


18 








11 


19 . . 






11 


20 








11 


21 








11 


22 








11 


23 ... 








11 


24 








11.5 


25 








11 


26 








10.5 


27 








11 


28 








10.5 


29 








11 


30 








11 


31 










1917-18. 
1 


11.2 
11.2 
10.2 
10.7 
10.4 

10.1 
10.1 
10.1 
10.5 
10.1 

10.1 
10.3 
10.2 
10.4 
10.4 

10.4 
10.2 
10.2 
10.2 
10.0 

9.8 
9.4 
9.7 
9.7 
9.9 

9.9 
9.9 
9.5 
9.4 
9.5 
9.-7 


9.5 
9.4 
9.4 
9.5 
9.5 

10.5 
10.0 
9.6 
9.5 
9.5 

9.6 
9.5 
9.5 
9.3 
9.5 

9.5 
9.4 
9.2 
9.0 
9.0 

9.1 

8.9 
9.2 
9.2 
9.1 

9.0 
9.1 
9.1 
9.0 
8.9 


8.9 
9.1 
9.1 
9.0 
9.1 

9.0 
9.0 
9.0 
9.0 
8.9 

9.0 
9.0 

8.9 
8.8 
9.0 

8.8 
8.6 
8.5 
8.5 
8.7 

8.5 
8.4 
8.6 
8.4 
8.4 

8.2 
8.4 
8.3 
8.3 
8.2 
8.1 


11.6 


2 


11.5 


3 


11.7 


4 


11.3 


5 


11.2 


6 . - 


11.3 


7 


11.2 


8 


11.0 


9 


11.2 


10 


11.0 


11 


11.0 


12. 


11.0 


13 


11.0 


14 


10.9 


15 


11.2 


16 


11.1 


17 .... 


10.8 


18 


10 8 


19 


10.6 


20 


10.6 


21.. 


10.6 


22 


10 6 


23 


10.6 


24 ' 


10.3 


25 


10.3 


26 . . 


10.2 


27 


11.1 


28.. 


10.6 


29 


10.5 


30 


10.4 


31 









348 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Monthly discharge of Southern Calif ornia Edison Co.''s canal near Claremority Calif. ^ 

for 1917-18. 



1917, 

January 

February... 

March 

April 

May 

June 

July 

August 

September. 



The period . 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



14.5 

21 

21 

21 

21 

21 

19.5 

15.5 

12.5 



12 

13 

21 

21 

21 

19 

15 

12.5 

10.5 



12.5 
15.0 
21.0 
21.0 
21.0 
20.1 
17.5 
14.1 
11.4 



Rim -off 
(total 



acre- 
feet). 



^,290 
1,250 



1,200 

1,080 

867 



1917-18. 

October 

November. . . 
December. . . 

January 

February 

March 

April 

May 

June 

July 

August 

September... 

The year 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



11. S 
10.5 



7.8 
7.4 
9.4 
19.4 
19.4 
18.6 
14.5 
11.8 
10.2 



7.4 



Run -off 
(total 



feet). 



10.1 
9.35 
8.70 
8.01 
8.62 
17.9 
19.4 
19.4 
19.3 
16.6 
13.3 
10.9 



13.5 



621 

556 

535 

493 

479 

1,100 

1,150 

1,190 

1,150 

1,020 

818 

649 



9,760 



CHINO CREEK AT RllfCOlS-, CALIF. 

San Antonio Ci'eek discharges from the southern slope of the Sierra 
Madre upon a large bed of sand and gravel. The underground waters 
percolate slowly to the south, and begin to appear again in the channel 
of what is known as Chino Creek. This creek enters Santa Ana Kiver 
just before that stream passes through its lower canyon in the Coast 
Kange. The discharge of Chino Creek is very constant, owing to 
the nature of its supply, and hence water rights along its course 
are valuable on account of their permanence. A series of measure- 
ments of the supply of this creek have been made and are published 
herewith. 



SANTA ANA RIVER BASIN. 349 

IXischarse measurcmctUsoJ Chino Crc(h near FAnron, Calif .. for 1898-1907 . 



Date. 


1808. 


Aug. 


30 


1899. 1 


May 


2 




iJi 


June 


3 




lo 


JiiJv 


4 




i; 


Auk. 


1 




ih 




31 


Sept 


13 




29 


Oct. 


25 




26 


Nov. 


18 


1900. 1 


Jan. 


18 




29 


Feb. 


21 


Apr. 


17 


June 


24 


July 


7 




28 


Aug. 


15 


Sept. 


3 


Oct. 


5 




16 


Nov. 


5 


Dec. 


4 




31 


1901. 1 


Aug. 


31 


1903. 1 


Map. 


31 1 

1 



Made by- 



F. II. Olmsted. 



F. Rolfe. 
....do... 
....do... 
....do. 



do 

do 

....do 

do 

....do 

J. B. Lippincott. 

do 

....do 

F. Rolfe 

....do.. 



F. Roife 

....do 

...-do 

W. P. Searcy.. 

....do 

....do 

S. G. Bennett. 
W. P.Searcy., 
do. 



W. V/. €oekins, jr . 

W. P. Searcy 

...do 

....do 

....do 



J. B. Lippincott. 
W. B.Clapp 



Dis- 
charge. 



Scc.-fcet. 
4.95 



12.8 
8.64 
17.0 
5.63 
3.02 
4.68 
7.49 
2.14 
3.W 
3.53 
3.88 
14.5 
14.5 
20.1 



24.1 
27.0 
13.4 
8.8 
4.0 
2.1 
2.2 
1.1 


5.0 
.4 
14.4 
17.1 
16.6 



1903. 
Apr. 29 
May 18 
June 12 
July 23 
Aug. 19 
Sept. 23 
Oct. 30 
Nov. 25 



1904. 
Jan. 26 
Feb. 29 
Mar. 21 
Apr. 29 
May 23 
June 20 
July 23 
Aug. 20 
Sept. 20 
28 
Oct. 22 
Nov. 19 
Dec. 10 

1905. 
Feb. 24 
Apr. 17 
May 16 
June 6 
July 29 
Sept. 21 

1906. 
June 25 
Aug. 31 
Nov. 7 

1907. 
Aug. 23 



Made bj'- 



O. W. Peterson. 
W. B. Clapp. . . . 
....do.....'..... 

do 

do 

do 

....do 

...-do 



W.B. Clapp.. 
do. 



Clapp and Murphy - 

W.B. Clapp 

do 

Clapp and Hardy . . . 

E.G. La Rue 

do 

W.B. Clapp 

E.G. La Rue 

do 

do 

do 



Dis- 
charge. 



Sec-fecU 
23 
15 
6.5 
3.4 
2.4 
3.3 
6 
9.2 



14.7 

24 

16 

15 
4.3 
2 

1.5 
1.6 
2.8 
3.6 
5.6 
8.3 
8.7 



1.1 
1.9 

3.9 
2.6 
10.3 



CUCAMONGA CREEK. 

Discharge riuasurcments of tributaries of Cucamonga Creel around Red Hill, Calif, 
for 1898-1900. 



Date. 


Madeby- 


Locality. 


Dis- 
charge. 


Sept, 9, 1898 


0. J. Sutton 

do .. 


Springs 


Scc.-feet. 
2.20 


Do 


Tunnels 


2.80 


Do 


do 




1.80 


Total 






6.80 




S G. Bennett 


From Stowell vreils to <Jntario 

East side 




Aug. 29,1899 


2.48 




. .do... 




July 11,1900 


4.03 


Do 


do 


West side... 


2.97 


Do 


do 


San Antonio water, Haskell well 

Sixteenth Street wells 


2.13 


Do 


do 


1.72 










Total from Red Hills . . 


10 85 












SURFACE WATER OF PACIFIC SLOPE, SOUTHER^- CALIFORK-IA. 



• MISCELLANEOUS MEASUKEMENTS. 
Measurements of discharge in the Santa Ana Eiver basin at points 
other than those at which gaging stations have been maintained are 
recorded in the following table: 

Discharge measurements of Santa Ana River for 1888-1915. 



Locality. • 



J. H. Quinton 

A. Q.Campbell., 
J. B. Lippineott . 
F. H. Olmsted... 

S. G. Bennett 

K. Sanborn 

F. H. Olmsted... 



do.... 

S.G.Bennett 

K. Sanborn 

J. B. Lippineott 

S. G. Bennett 

K.Sanborn 

F.H.Olmsted - 

J. B. Lippineott 

.-.--do --- 

W. P. Searcy.. -.-.- 

.. do --.- 

do 

.---do -..- 

-..-do .-.- 

-.-.do 

F. C. Finkle... 

do. 

.-.--do 

.....do 

.....do 

do 

.....do 

■ -...do 

F. H. Olmsted 

S.G.Bennett 

J. B. Lippineott 

S. G.Bennett 

W. W. Cockins, jr. . , 
J. B. Lippineott... - 

• do --. 

W. B.Clapp - 

J. B. Lippineott 

do. 

do 

F.C. Finkle-- 

.----do -.. 

...--do 

do 

-..--do 

--...do 

do. 

--...do 

-----do 

F.H.Olmsted 

.....do 

F. Rolfe. 

J. B. Lippineott 

S. G. Bennett 

K. Sanborn 

J. B. Lippineott 

Clapp and Clausen. 

W. B.Clapp 

Clapp and Myiue. . - 



Clapp and Mylne . 

O. W. Peterson. .. 

W. B.Clapp 

E.G. La Hue 

O. W. Peterson... 

do - 

--.--do 

do 

...--do - 

F. C.Ebert 

-....do 

.....do 

.....do 



Above mouth of Bear Creek . 
...do 



Below Jurupa ditch 

Below Roubidoux, Evans Upper, and Trujillo ditches . 



-do. 



Vf miles below intake of Riverside Water Co.'s lower 
'canal. 

Below West Riverside bridge " 

.do. 



..do. 
..do-- 



2 miles below West Riverside bridge . 
1, 000 feet belov/ Roubidoux bridge . . . 

Near Rincon 

.....do 

do---- 



-do.. 

-do.- 
.-do. 

-do., 
.-do.. 



Auburndale bridge . 
do. 



.-do., 
-.do-. 

-do., 
.-do., 
.-do. 

-do.. 



Auburndale bridge, including ditches 

...do 

Auburndale bridge 

Auburndale bridge, including ditches. . . - - 

-.--do 

Auburndale bridge, above Robert's ditch. 

- . . -do 

Auburndale bridge 

Opposite E^eranza station 

Above Fuller's ditch 

Newberry's east line 

Riverside Narrows 

-.--do 

.--do 

-.--do 

...--do 

-.-do 



-do-. 
..do.. 
..do.. 
..do.. 
..do.. 

.do., 



.do. 



do .- 

do 

.Colton bridge, 
do. 



Orange Avenue 

.. do 

h mile below Orange Avenue 

i mile above heading of Santa Ana and Anaheim canals . 
Heading 



.do. 



2 miles below heading 

2 miles above Yorba 

I mile above Yorba 

f mile above Southern California Ry. crossing at Olive 

f mile below crosshig ." 

Pedley power house near Arlington 

.....do 

Salt Lake R. R. bridge near Arlington 

do 



SANTA AISTA PaVER BASIE". 



351 



Discharge measurements of Santa Ana River at Rincon ivagon bridge, San Bernardino 
County, Calif., for 1899-1907. 



1899. 
Sept. 13 
Oct. 25 
26 
Nov. 18 
Dec. 28 

1900. 
Jan. 18 
29 
Feb. 21 
Apr. 17 
June 24 
July 7 
28 
Aug. 15 
Sept. 3 
Oct 



16 



Nov. 
Dec. 



1901. 
All-. 27 
31 

1902. 
Sept. 2 

1903. 
Mar. 31 
Apr. 29 
May 18 
June 12 
July 23 



Made by- 



J. B. Lippincott. 

.....do 

...-.do .--- 

.....do ------ 

--.-.do 



W. P. Searcy 

....do 

-.--do --. 

S. G. Bennett 

W. P. Searcy 

-.--do 

W. W. Cockins, jr.. 



J. B. Lippincott. 



W. B.CIapp. 



W. B.Clapp 

O. W. Peterson. 
W. B.Clapp..-. 

..--do 

-.--do 



Dis- 
charge. 



Sec. -ft. 
72.6 
130 
147 
151 
165 



224 
184 
162 
102 
69.2 
84.5 
60.8 
87.1 
88.2 
74.2 
122 
117 
338 
210 



78. G 
65.3 



400 
193 



1903. 
Aug. 19 
Sept. 23 
Oct. 30 
Nov. 25 

1904. 
Jan. 26 
Feb. 29 
Mar. 21 
Apr. 29 
May 23 
Juno 20 
July 23 
Aug. 20 
Sept. 20 
28 



Oct. 
Nov. 
Dec. 



1905. 
Feb. 24 
Apr. 17 
May 16 
June 6 
July 29 
Sep't. 21 

1906. 
June 25 
Aug. 3 
Nov. 7 



1907. 
Aug. 23 



3by— 



W. B.Clapp. 

-.--do --- 

-.--do - 

----do -- 



Dis- 
charge. 



W. B.Clapp.. 

-.-.do 

Clapp and Murphv 
W. B.Clapp...".... 

do 

Clapp and Hardy.. 

E.C.LaRue - 

-.--do 

W. B.Clapp 

E.C.LaRue 

----do 

--.--do 

.-.--do 



78 
93 
102 



109 
162 
107 
96 

82 
63 

02 
69 



73 
103 
■ 110 



205 
172 
115 



82 
. 94 



Dis hargc measurements of Santa Ana River 1 mile below railroad bridge, Rincon, Calif, 

for 1898-1900. 



Date. 


1898. 


June 21 


Aug. 


29 


1899. 1 


Jan. 


3 




16 




28 


Feb. 


15 


Mar. 


4 




iH 


Apr. 


6 




18 


May 


2 


May 


lb 



Hydrographer. 



F.H. Olmsted... 
....do 



S.G.Bennett. 

F.Rolfe 

....do 

....do 

do 



....do.. 
....do- 
....do.. 
....do.. 
....do.. 



Discharge. 



Sec.-ft. 
79.8 
62.7 



216 
181 



Sec.-ft. 
3.2 



6.5 

1.8 



Total 

for 
river. 



Sec.-ft. 
83 
66.9 



211 
232 
222 
183 
109 
200 
172 
104 
102 
104 



July 



Hydrographer. 



F. RoMe 

do 

do 

Bennett and Rolfe 

do 

F.Rolfe 



ao 

do 

do 

do.... 

J. B. Lippincott. 

1900. 

Apr. 16 I S. G. Bennett.. 



Discharge. 



River. Canal. 



Sec.-ft. Sec.-ft. 



110 

84.4 
68,9 
101 

87.9 
64.1 I 

57.8 ; 
64.7 i 

65. 9 I 
68 1 
72.7 i 



3.2 
1.9 

2.4 
1.9 

1.6 

1.5 

3.4 

3.2 

2 

3.1 



Total 

for 
river. 



Sec.-ft. 

113 
86.3 
71.3 

103 
89.5 
65.6 
61.2 
67.9 
67.9 
71.1 



352 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Miscellaneous discharge measurenunts of tributaries and canals in Saniu Ana River 
drainage basin for 1896-1918. 



Pate. 


Stream. 


Locality. 


Dis- 
charge. 


July 27,18^3 


Bear Creek .'. 




Sec.-ft. 
70.6 


Aug. 31,1897 


do.. 




54.3 


Nov. 14,1897 


do. ... 




8.95 


Do 


Keller Creek 




1.00 


Apr. 14,1900 


do 




.07 


Aug. 27,1912 


do 

Alder Creek 


Mouth, in N W. i- sec. 26, T. 1 N., R. 2 W 


o.l 


Aug. 8,1897 




.88 


Aug. 31,1897 


do . . 




1.00 


Nov. 14,1897 


do 




2.00 


Apr. 14,1900 


do 




1.90 


Oct. 8,1901 


do.. 




.89 


Aug. 27,1912 


.....do 


Southern California, Edison Co.'s flume near in- 
take, one-fourth mile above mouth, in NE. J 
sec. 27, T. 1 N., R. 2 W. 

200 feet above fore bay at Mentone power plant 




Jan. 31,1918 
Apr. 12,1898 


Southern California Edi- 
son Co's. canal. 
Morton Creek 


44 
.20 


Apr. 29,1898 
June 12,1898 


do. 

.....do.. 


do 

do : : 


.20 
.12 


May 31,1899 


do 


do 


.23 


June 15,1899 


do 


do 


.17 


July 15,1899 


do 


. .do 


.12 


Aug. 24,1899 


do 


do . . .- 


.11 


Apr. 14,1900 


do 


. ..do 


.29 


July 13,1900 


....do. 


do 


.09 


Oct. 2, 1900 


do 


do ... . 


.12 


Aug. 31,1903 


.....do 


.do 


.20 


May 28,1904 


do 


do .. 


.13 


Sept. 21, 1904 


:::::do :::.: ::::: 


do 


.14 


Sept. 22,1905 
Juy 15,1899 


.do 


do 


.10 


Mill Creek. . . 


Redlands Power Co., loAver intake . 


8.9 


Oct. 2, 1900 


do 


do : 


7.3 


Mar. 22,1904 


do 


Weir at Edison electric power house, Nos. 2 and 3. 
do 


17.6 


Sept. 21,1904 


do 


14.1 


Nov. 11,1904 


...do 


do 


11.2 


Apr. 14,1905 


do 


Road crossing between Mentone and Santa Ana 

Canyon. 
\bove upper division, Edison Electric Co 


46 


June 26,1907 


. do 


61 


Sept. 18, 1907 


do 


Below power plant No. 1, Edison Electric Co 

Bicknell station . . . 


33 


July 14,1900 


San Timoteo Creek 


1.50 


Oct. 23,1912 


Flume on trestle crossing at Mill Creek. 


31 


June 12,1898 


Plunge Creek 


Headworks in canyon . . 


2.30 


Sept. 9,1898 


. do 


do 


.20 


Mar. 25,1899 


do .... 


do 


10.90 


Aug. 25,1899 


do 


do 


.50 


July 12,1900 


do 


do . 


:34 


Apr. 7, 1902 


do 


do 


12.40 


Sept. 4,1902 


....do 


do 


.37 


Apr. 23,1903 


do 


'do . 


23 


May 17,1903 


do 


....do 


9 


Sept. 11,1903 


do 


do 


.6 


Sept. 21,1904 


do 


do 


.0 


Sept. 22, 1905 


do 


do 


1.0 


Sept. 19, 1907 


.do 


do 


3.0 


Apr. 23,1903 
May 17,1903 


do 




&.0 


do 


... do 


b.O 


Apr. 15,1905 


do 


do - 


919 


Feb. 28,1914 


do 


Highway bridge on East Highlands, Santa Ana 
Canyon road, 
do 


59 


Mar. 10,1914 


do 


18 


May 15,1914 


do 


do 


11 


June 11,1898 


City Creek 




3.03 


Sept. 9,1898 


do 


do 


;07 


Mar. 25,1899 


do 


do 


8.80 


Aug. 25,1899 


do 


.do 


.17 


July 12,1900 
Oct. 1, 1900 


do ; . 


do . 


.16 


do 


do 


.21 


Apr. 7, 1902 


do 


.do 


12.5 


Sept. 4,1902 


. . do 


do 


.2 


Apr. 23,1903 
May 17,1903 
Sept. 11, 1903 
Sept. 22, 1904 
Sept. 23,1905 


do 


do 


22 


do 


... .do 


11.2 


. do 


do ... 


.2 


do 


do 


.5 


do 


. . .do. 


1.16 


Sept. 19, 1907 

Aug. 28,1912 


.do. . 




4.6 


do.... 


In City Creek canal about 1,500 feet below intake 
All water of creek in canal. 


2.6 



SANTA ANA RIVER BASIN. 



353 



Miscellaneous discharge measurerne7its of tributaries and canals in Santa Ana River 
drainage hasin , for 1896-1918 — Continued. 



Date. 


Stream. 


Locality. 


Dig- 
charge. 


Apr. 23,1913 
Mar. 10,1914 


City Creek 


About 500 feet below intake of City Creek canal 
near Highlands. Canal dry. 

At bridges on Base Line road near Highlands . 

do 


Sec.-ft. 

6.8 : 


.do 


35 


May 15,1914 


do. 


18 


Strawberry Creek (also 
known as East Twin 
Creek). 

do 

do... 

.. ...do 

do.. 

do 


Canyon: 

Ditch 




June 11,1898 


1.95 




Tnrinel--- . 


.11 




Total 


2.06 




Canyon: 

Ditch 




Sept. 9,1898 


.43 




Tiinnel 


.30 




Total " 


73 




Canyon: 

Ditch 




Mar. 24,1899 


3.88 




Tunnel 


.50 




Total 






4.38 




Canyon: 

Ditch 




Aug. 25,1899 


.58 




Tunnel 


16 




Total 






74 




Canyon: 

Ditch 




July 12,1900 


.62 




Tnnnel - - 


15 




Total 






77 




Canyon: 

Ditch 




Oct. 1,1900 


^ • 




.do 


36 




Tunnel . . ... 


•21 

57 




Total 


Apr. 4, 1902 


Canyon: 
Creek 




.do 


4 7 




Tunnel 

Total 


•2 




4.9 




Canyon . . . 




Sept. 4,1902 
Apr. 23,1903 


4 


do 


do 


10 


. ...do 

. ...do 

.....do 


Canyon : 

Creek . 




May 17,1903 


3.2 




Ditch 


1 6 




Total . 






4.8 


Sept. 11,1903 


Canyon: 

Ditch 


4 




Creek 







Total 






.4 




1 mile above Southern California Ry 


Apr. 23,1903 
May 17,1903 





do 


do 





Sept. 22, 1904 
Sept. 23, 1905 
July 14,1906 


.do 


Head of pipe line.. 


.6 
54 

2 7 


.....do 


Near Arrowhead Springs 


...do 


do 


Sept 17,1907 


do... 


do 


2 3 


Waterman Canyon Creek 
(also known as West 
Twin Creek). 


do 




June 11,1898 






Pipeline .. .. 


1.06 




Flume 


.68 




Hot Springs 


.40 




Total 






2.14 



142131°— 21— wsp 447- 



-23 



354 SURFACE WATER OE PACIFIC SLOPE, SOUTHEEISr CALIFORNIA. 

Miscellaneous discharge measurements of tributaries and canals in Santa Ana River 
drainage basin, for 1896-1918 — Continued. 



Date. 


Stream. 


Locality. 


Dis- 
charge. 


pt. 9,1898 


Waterman Canvon Creek 
(also known ' as West 
Twin Creek), 
do 


Near Arrowhead Springs 


Sec.-ft. 
0.38 


ar. 21,1899 


. ..do 


3.00 


ug. 25,1899 


do 


do 


.20 


ily 12,1900 
Ct. 1,1900 


.do. 


do . ... 


.22 


do 


.do 


.16 


pr. 4, 1902 
.pt. 4,1902 


. ..do 


do 


3.20 


-do 


do 


.13 


pr. 23,1903 


do 


Mouth of canyon 


8.6 


Do.. 


. ..do 


Southern California Rv 


a 


ay 18,1903 


do 


do " . . 


a 


Do 


do 


Total at mouth of canyon 


4.4 


}pt. 11,1903 


. ..do 


do 


.3 


5pt, 21, 1904 


do 


Head of pipe line 


4 


lly 13,1905 


do 


Near Arrowhead Springs 


1.02 


Qy 14,1906 


.do. 


Mouth of canyon 


4 


Dt. 17,1907 


do 


Near Arrowhead Springs 


2 


ct. 13,1905 


Devil Canyon Creek 

do 


Mouth of canyon 


1.26 


lly 14,1906 


-do 


5 20 


lly 24,1896 
me 10,1898 
ug. 27,1898 
Ug. 29,1899 


Lytle Creek -do 


15 7 


.do. 


do . . 


10 7 


do 


.do . . . 


10 


.do. 


.....do 


12 5 


ine 8, 1900 


do 


....do 


6 2 


;pt. 29, 1900 


....do 


do 


4.6 


pr. 4, 1902 
jpt. 5,1902 
pr 1 1903 


.do. . .. 


do 


19 9 


do 


do .... . 


5 


do 


do 


1 790 


pr. 22,1903 
Do 


do 


.. ..do..... 


63 


...do 


ilighland Avenue 


n 


ay 19,1903 
Do 


.do. .... 


do 


a 


do 


Mouth of canyon . . 


29 5 


liy 2, 1903 
jpt. 12, 1903 


do 


do . 


16 5 


do 


..do 


14 7 


jpt. 22, 1904 


...do 


do 


9.2 


me 16,1905 
lly 16,1906 
me 8, 1900 
lly 16,1906 


-do. ... 


...do. 


23 


do 


.do . 


81 4 


Cajon Creek, Lytle Creek. . 
do. 


iieenebrook station 


1.37 


do 


3.3 


ct. 11, 1910 


do 


Below junction with Lone Pine Creek. 


4 8 


lly 16,1906 
ug. 26,1912 

ug. 26,1898 
lly 11,1900 


Cable Canyon Creek, Cajon 
Creek. 

Southern California Edi- 
son Power Co.'s canal, 
diverts from Lytle Creek. 


Near Glen Helen ranch 


2.2 


1,000 feet below intake in sec. 26, T. 2 N., R. 6 W., 
near west line of section. Includes flow of Lytle 
Creek and a small flow developed from gravels 
by diverting dam. 


17 
1 04 


do 


.do .... 


1 08 


ct. 7,1901 


....do 


do.. 


2.06 


pr. 3, 1902 


-do. 


do.... 


4.80 


pr. 21,1903 


do 


Mouth of canyon 


15 


Do. 


....do 


Southern CaUfornia Ry 


a 


ay 25,1903 
Do 


do 


Mouth of canyon 


6.5 


.do 







ept. 13, 1903 
spt.23,1904 
one 19,1898 


do 


Above headworks of Hermosa Water Co . 


3.6 


do 


Point of diversion of Cucamonga Water Co 

Below West Riverside bridge 


1.8 
2.92 


ug. 28, 1898 
aly 28,1900 


-do. 


-do 


1.27 


do 


do 


2.77 


ug. 30,1901 


..do... . 


.do .... 


2.08 


[ar. 27,1917 
pr. 21,1917 


Temescal Water Co.'s 
canal, diverts from San 
Jacinto River. 

. -do. 


Above U. S. G. S. gaging station on San Jacinto 
River near Elsinore. 

-do 


6.4 
9.8 


Lay 20,1917 


do 


do 


5.5 


Lay 31,1916 


Pacific Light and Power 
Corp.'s tailrace (Sierra 
plant), diverts from San 
Antonio Creek. 

.. ..do. 




21 


one 13,1916 


do . . 


21 


[ay 31,1916 
one 27,1916 


Evey Creek, San Antonio 

Creek. 
. ..do 


100 feet above concrete dam, at trail crossing near 
Claremont . 
-do . . . .. 


1.8 
1.1 


aly 3, 1916 


.do. 


do 


1.0 


aly 19,1916 


do 


do 


.5 


eb. 19,1917 


do 


do 


,8 


pr. 5,1917 
pr. 26,1917 

a Stream di 


. .do 


-do.'.. . ...... 


.7 


-do. 


-do .. 


.7 


y 







SANTA ANA RIVER BASIN. 



355 



Miscellaneous discharge measurements of tributaries and canals in Santa Ana River 
drainage basin, for 1896-1918 — Continued. 



Date. 


Stream. 


LocaUty. 


Dis- 
charge. 


Jan. 12,1917 
Jan. 27,1917 


Brea Canyon Creek 

.do 


Just below junction with Canada del Rodes 

do 


Sec.-ft. 
1.0 
1.3 


Feb. 25,1917 
Apr. 7, 1917 
Jan. 12,1917 

Apr. 7,1917 
Jan. 12 1917 


do. 


..do 


23 


do 


.do 


a 3 


Canada del Rodes, Brea 
Canyon Creek, 
do 


just above Birch Oil Co.'s dam in NW. J NW. i, 
sec.32, T.2S.,R.9W. 
.do ... 


.16 
03 


.do- 


do , 


.08 


Feb. 25, 1917 
Mar. 23, 1917 
Jail 12 1917 


do 


.do 


4.6 


do 


do 


09 


.do. 


Just above junction with Brea Canyon Creek 

.do 


.3 


Jan 26 1917 


do 


2 


Feb. 25' 1917 


do. 


...do 


7.5 


Apr. 7, 1917 
Mar. 23,1917 


do 


.do 


a 05 


Birch Oil Co.'s diversion, 
diverts from Canada del . 
Rodes. 


storage tsmk at Brea oil fields , 3 miles below intake - 


.05 



o Estimated. 



Discharge measurements of canals between the Riverside Narrows and the Auhurndale 

bridge having their source in Santa Ana River. Calif., for 1903-1907. 

[By K. Sanborn, engineer Riverside Water Co.] 



Date. 


Canal. 


Dis- 
charge. 


Date. 


Canal. 


Dis- 
charge. 


Sept. 5,1903 
May 15,1904 
Aug. 18,1904 
June 15,1905 
Sept. 22, 1905 
June 21, 1906 
Sept. 29, 1906 
June 26,1907 
Sept. 27,1907 
May 15,1904 


Castle ditch 


Sec-feet. 
3 
.0 
.0 
.0 
.0 
.0 
.0 
.0 
.0 

.0 
.0 
4.1 
.0 
3.2 
3.5 
3.4 
9.8 
13.4 
11.2 
4.6 
5.6 
5.4 
12.7 
6.7 
8.3 
1.7 

.61 
.42 

1.40 
.30 
.17 
.50 

1.10 
.60 

.94 
2.70 
.00 
.00 
.00 
1.60 
.00 
.80 


Sept. 5,1903 
May 15,1904 
Aug. 20,1904 
June 15,1905 
Sept. 22,1905 
June 21,1900 
Sept. 29, 1906 
June 26,1907 
Sept. 27, 1907 
Sept. 5,1903 
May 15,1904 
Aug. 20,1904 
June 15,1905 
Sept. 22, 1905 
June 21, 1906 
Sept. 29, 1906 
June 20,1907 
Sept. 27, 1907 
Jime 15,1905 

Sept. 22, 1905 
June 21,1906 
Sept. 29,1906 
June- 26, 1906 
Sept. 27,1906 
June 15,1905 

Sept. 22, 1905 
June 21,1906 
Sept. 29,1906 
June 26,1907 
Sept. 27,1907 
Sept. 5,1903 

May 15,1904 
Aug. 20,1904 
June 15,1905 
Sept. 22, 1905 
June 21,1906 
Sept. 29,1908 
June 26,1907 
Sept. 27, 1907 


Newton ditch, near intake 

do 

do 

do 

do 

do 

do 

do 

do 

Roberts ditch near intake. 

do 

do 


Sec-feet. 
4 10 


do 

do 

.....do 

do 

do 

do 

do. 

do 

Durkee ditch at Auburn- 
dale Bridge 


4.70 

7.70 

2.30 

1.70 

.00 

.00 

.00 

.00 

2.60 

2 20 


Aug. 20,1904 


do 

do 

do.... 

do 

.!!"do!!!^!'"!!"!!!!!i" 

do 

Fuller ditch 


1.40 


June 15,1905 


....do 


1 00 


Sept. 22,1905 
June 21,1906 
Sept. 29, 1906 
June 26,1907 
Sept. 27,1907 
Sept. 5,1903 


do 

do 

do 

do 

do 

Santa Ana River at Au- 
hurndale Bridge 

.do 


1.70 
2.60 
1.50 

.80 
.00 


May 15, 1904 
Aug. 20,1904 


do 

.do 


63.60 
57 00 


June 15,1905 


do 


do 


58.00 


Sept. 22, 1905 


.. ..do 


.do 


62.00 


June 21,1^)6 


do 

do 

do 

do 

Giliiland ditch at Aubum- 


do 


78 00 


Sept. 29, 1906 


do 


57.70 


June 26,1907 
Sept. 27,1907 
May 15,1904 


Santa Ana River at Au- 
bumdaie Bridge, includ- 
ing canals 


71 13 




do 

do 

do 

do 

do 

Wilbur ditch at Roger's 
pipe trestle crossing 

!!";do":;::::;;;:;:!!;!" 
do 

.do 


57.80 
59.37 
57.60 
86.00 
66.50 

1.70 
2.54 
2.13 
6.10 
6.40 


Aug. 20,1904 
June 15,1905 
Sept. 22, 1905 
June 21,1906 
Sept. 29, 1906 
June 26,1907 
Sept. 27, 1907 
May 15,1904 

Aug. 20,1904 


do 

;"!!do"""!!!!"!"""" 

do 

do 

do 

do 

Newberry ditch at Au- 
hurndale Bridge 

do 


June 15,1905 
Sept. 22, 1905 
June 21,1906 
Sept. 29, 1906 
June 26,1907 


do. 

do 

do 

do 

do 


.....do 

.....do 

do 

do 


.00 
.00 
.00 
.00 


Sept. 27, 1907 


do - 





356 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

•Miscdlancous measurements of canals in Santa Ana River drainage basin, Calif, fin' 

1898-1903. 



Pate. 


Stream. 


Made hy— 


Locality. 


Dis- 
charge. 


Oct. 25,1900 

Apr. 29,1903 

Sept. 25,1903 
June 22,1898 

Aug. 30,1898 
Aug. 30, 1899 
Sept. 15, 1899 
Oct. 25,1899 
July 28,1900 
Oct. 5, 1900 
Aug. 27,1901 
Aug. 31,1901 
Sept. 7,1898 

Aug. 2.5,1899 
Feb. 17,1898 
Sept. 28, 1899 
Sept. 29, 1899 
Aug. 30,1901 
Sept. 3,1899 
Sept. 13, 1899 
.Tuly 28,1900 
Aug. 27,1901 
Aug. 31,1901 
Sept. 23,1903 
July 1,1899 

Aug. —,1899 
Jime 19,1898 
Aug. 28,1898 
Aug. 30,1899 
July 27,1900 
Oct. 25,1900 
July 27,1900 
Oct. 25,1900 
Aug. 30,1901 
Oct. 5, 1900 
Aug. 30,1901 
Do - . 


Alvitrez ditch 


K.Sanborn.....---. 

O.W.Peterson..'...... 

W. B. Clapp. .-......-. 


Vicinity of Colton and River- 
side. 
Heading - - 


Sec-feet. 
1 53 


Anaheim and Fuller- 
ton canal. 
do 


2.8 


Esperanza....... . 


32 


Anaheim and Santa 
Ana canal. 

do 

do 

. do.... ........ 


F.H.Olmsted.. ... 


Division box... 


67 5 


do 

S.G.Bennett 

J. B. Lippincott -.-.:.. 
. . do 


do... .- 


52.9 
59.6 
71 7 


do 


145. 


!!!"!do!!!!!!!!!!!!!!!!! 

do 


S. G . Bennett 


. . do.. . 


49.7 


W.W.Coekms.jr. 

J. B . Lippincott ..... . 


.....(\o'''.............. . . :.. 


75.1 
64.5 


do 


do. . . . 


do 


55 4 


Bear Valley ditch 


do 


Joint head works with Palm 

' Spring. 

: do 


9.35 


do 

"!!!dS!!!!]!!;;;!!."!:: 

do 

Castillo ditch 

Durkee ditch 

do 

do 


S. G. Bennett 


6.34 


J. B. Lippincott. ....*- 

;!;!;d2!!!I!!!!v*!*!!!!! 

do 

do........ J........ 

do 

S. G. Bennett 


} mile northeast of ranch house. 
Headgate . 


3.05 
5.20 


1 mile below headgate.. 


2.49 


Below Riverside Narrows 

Near ranch house. . . 


1.19 

1.38 




6.14 




1.80 


do 

do 

do 

Evans ditch 


J. B. Lippincott. . - . . 




3. 98 


.....do 

W.B. Clapp... 


Auburndale Bridget. 


8.24 
3,40 




Near Temescal, Riverside 

County. 
. ..do 


3.75 


do 




3.00 


Evans lower ditch.... 

do.... 

do 

do.... 


F.H. Olmsted......... 

--...do 

S.G.Bennett 

do . 


Riverside County - . . . 


5.68 


do 

.....do. 

.'.'.'.'aI'.'.'.'.'.'.V. '.'.'.. '..'.'.'.'.'.'.'.'.v.. 

do 


4.87 
4.48 
.5.27 


do 


K.Sanborn 

S.G.Bennett 

K.Sanborn.... 

J. B. Lippincott 


•1.36 


Evans upper ditch 

do 

do 

Fuller ditch 


1.04 
3.32 
1.88 


W. W. Coekins, jr 




6.50 


do 

do 

Gilliland's ditch 

do 

"H"ditch 


J. B. Lippincott 

do 

S. G. Bennett 


Near intake.. 


9.69 




7.15 


July 28,1900 
Sept. 23, 1903 
June 20,1898 


Auburndiale Bridge 


1.4 


W.B. Clapp 


.do. 


L2 


F.H.Olmsted. .- 


On right bank of Santa Ana 
River 3 miles below River- 
side Narrows. 

On righ^ bank of Santa Ana 
River 5 miles below River- 
side Narrows. ; 


3.75 


Do 


"J-' ditch 


. .do 


9.99 


Jjime 18 1898 




do...., 


13.8 


July 1 1898 


.....do 

do.. 

--...do.... 

do. 

.....do.. 


Lippincott and San- 
born. 
F. H. Olmsted 




7.11 


Aug. 27,1898 
Sept. 22, 1898 
May 31,1898 
July 15,1898 
July 26 1899 




10.2 


J. B. Lippincott....... 




5.41 


S. G. Bennett. . . ... 




6.74 


do ... 




13.1 


do do 


Submerged flume above Col- 
ton Bridge, 
do .. 


5.11 


Aug. 24,1899 
July 27 1900 


do 

..do 


do.... 

.do 


4.28 




14.4 


Oct. 19,1900 
July 28,1900 
Aug. 27,1901 
Aug. 31,1901 
Sept. 23,1903 
Aug. 30,1901 
June 17,1898 

June 18,1898 
Aug. 30, 19Q1 
Sept. 30, 1902 
Aug. 30,1899 

July 26,1900 
Aug. 27,1901 
AuK. 31,1901 


do 


K. Sanborn. ..... . . . 




14.0 


Newberry ditch 


S G Bennett 


Auburndale Bridge. 


5.47 


J. B. Lippincott 

do .. - . ... 


Head......... .: 


3. 05 


. do..... 


..do..., 


3.23 


do 

do 

Riverside Water Co.'s 
lower canal, 
do 


W.B. Clapp 

J. B. Lippincott :....: - 
F.H.Olmsted 


Auburndale Bridge 1 . 


3.3 


Below Narrows ... . 


7.04 




9.27 


do 




11.3 


...--do 

do.... 


J. B. Lippincott....... 




4.52 
3.07 


Riverside Water Co.'s 
upper canal. 


S. G. Bennett 




67.4 


do 




43.3 


Roberts ditch.. 






.0 


do. 


do 




.0 



SANTA ANA RIVEE BASIN. 



357 



Miscellaneous measurements of canals in Santa Ana River drainage hasin, Calif .^ for 
2898-190S—Gontmned. 



Made by- 



Locality. 



Dis- 
charge. 



June 19,1898 
Aug. 28,1898 
July 27,1900 
Oct. 25,1900 
Aug. 30,1901 
July 14,1900 
June 22,1898 

Aug. 30,1898 
May 26,1899 
Sept. 15,1899 
Oct. 26,1899 
Sept. 3,1900 
Aug. 16,1900 
Aug. 31,1901 
Apr. 30,1903 
Sept. Zi, 1903 
June 24,1901 
June 20,1898 
Oct. 5, 1900 
July 27,1900 
Oct. 25,1900 
Aug. 30,1901 
Oct. 26,1899 
Aug. 15,1900 
Sept. 3,1900 
Aug. 31,1901 
Sept. 25, 1903 



Roubidoux diicli 

do 

do 

do 

do 

San Timoteo ditch 

Santa Ana Irrigation 
Co. 's canal. 

do 

do 

do 

do 

do 

do 

do 

do 

do 

Seecher ditch 

Townsend ditch. . . . . . . 



..do. . 



Trujillo ditch . 

do. 

Wilbur ditch.. 
Yorba ditch... 

....do 

....do 

do 

do 



F, IT. Olmsted . . . 

do 

S. G. Bennett 

K. Sanborn 

J. B. Lippincott. 

K. Sanborn 

F. II. Olmsted... 



....do 

F. Rolfe 

J. B. Lippincott.. - 

do 

W. P. Searcy 

do 

J. B. Lippincott.. - 

O. W. Peterson 

W. B. Clapp 

W. P. Searcy 

F. H.Olmsted 

W. W. Cockins, jr. , 

S. G. Bennett 

K. Sanborn 

J. B. Lippincott... 

do 

W. P. Searcv 

do : 

J. B. Lippincott... 
W. B. Ciapp 



Bicknell station 

Near bridge at Yorba . 



....do 

3 miles above Olive. 



Road crossing , 

1 mile below heading., 

do 

Rincon Bridge 



Esperanza. 



Sec.-jt. 
8.94 
8.50 
8.18 
7.80 
8.75 
1.50 
29.0 

24.6 

44.0 

30.3 

47.2 

39.0 

25.7 

18.3 

43 

34 

.62 

4.80 

5.84 

.46 

.53 

4.52 

8.88 

14.0 

21.4 

.40 



Miscellaneous low-uater measurements made in basin of Santa Ana River, Los Angeles, 
San Bernardino, Riverside, and Orange counties, for 1900. 



Dis- 
charge. 



1900. 
Sept. 25 
25 

27 
26 
24 
26 
26 
24 
25 
24 
25 
25 
25 
25 



Frey's ranch, near Spadra 

Phillip's ranch, near Spadra (weir) 

C. L. Lancaster, Mesa Avenue, Lordsburg (weir) 

Covina Irrigation Co. compressor pumping plant, south of Lordsburg 

Neuruff place, corner Holt Avenue and San Antonio Avenue, Pomona (weir) 

Pomona Land & AVater Co., Garey Avenue (weir) 

Consolidated Water Co; 's Pomona air-compressor plant (weir) 

Consolidated Water Co. , north of Pomona College (weir) 

James Warden's place (weir) 

Brundege place, San Antonio Avenue, Pomona 

Del Monte Water Co. (weir) , 

San Antonio Water Co.'s wells in Claremont; water goes to Ontario (weir) 

San Antonio Water Co.'s wells at Indian Hill, ^ mile north of Pomona College (weir) 

San Antonio Canyon. From records of Pomona Land & Water Co. The discharge 
from San Antonio CauA-on was 7.53 second-feet Sept. 2, 1895, and 9.02 second-feet on 
Sept. 6, 1897 (weir) o. .' 

RED HILL, CUCAMONGA. 

Cucamonga Land ct Water Co. , Cucamonga Creek, 30-inch pipe line (weir) 

Cucamonga Land <fc Water Co. , Lone Star Spring pumping plant (weir) 

Cucamonga Land & V/ater Co., '* Y " tunnel (weu") 

Stow^ll water from 90-acr6 tract; west side part to Ontario (weir) 

San Antonio Water Co., Haskell well (weir) 

San Antonio Water Co., Sixteenth Street, pumping plant (weir) 



Sec-feet. 

1.85 
.74 
.559 

3.58 
.33 

1.28 

3.34 
.82 
.25 
.26 
.96 
.40 



1.15 
1.20 
1.68 
2.97 
2.13 
1.72 



10.85 



a July 11, 1900, measurement made of water in San Antonio Canyon by S. G. Bennett; discharge, 4.07 
second-feet. 



353 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



i 


'mm 


S 


8 

^ 

-* 


402.33 
469.68 
520. 73 
727. 80 
759.85 
















S^ 






s 








8IOB-06 UO JE^JOi 










s 




13 










•tros 
-BOS snoiAajcI nrey; 




S 




00 




^. 




•^OBJl 8 JOB 

-OeaAoqBiamin:^ 
puB snaA\. iiaAiojR 


















8 


8 : ' 












•uopiBS tjnyqo 


















8 




s 






■aasG 06 














8 

00 








8 






•Suuds oioonqij. 


8 s fgsa^ ' 














g 




8 






8 119^ UeiS8|.IY 














8 




a" 




8 






•0 BSBn 
-910 'Suudg OTHOT J 


8 ^ Sg§.^S?^^ 

OT 00 O lO t-' O 1-^ CO 






8 




§ 




§ 






,/a,, '^2T3U3p-AV 










8 
1^ 




88 


8 




8 
1 






■IBJJOd 

S -OK lanun; jo 
^saAvifiJon SuTjdg 


CO O? Co' 0? CO CO CO 








8 




8 888 


8 


3 
1 


•mo J, ■ 


?? io §oS^?2S 




2i 


s 


i is 




^£1 


•JB^g 8U0T 

; n q ; T av ib^oj. 


CO no O ^ ^OOCO 

1 ^ s^isi 




is 


i 


: gl 


IS 


•I -ON 
Avoiaq BSBuaij 












^ ■«< 
















•9881 (n Jopd 


o Jo 

<D03 


s 


: 8SI53^S 


^2§ 

s3§ 














5 


*I9Tran; 


c4 <N (m' CO en o ^ 




88 


f 






88 


•^SBtiaio ouiqj 


^' r-J O 00 CO^ t-: O-^ 




^S 
'^^d 


^. 










•£88I 
-9881^1 -jiinq'tau 

-m^ A PttB 9UTI 

qom-9i'xxoq-ATa: 




CO O OO CO (M CO 






§ 


: $:i 




•anil qouTiOe 
'xoq -ATd 3i9aJO 






is 


§ 
s 






1 




1 ^ 




> 




ll 


1 i ^ilU 




1 


1 




1 




1 


1 








'1 


1 


< 


< 


< 


1 

< 


< 





SANTA ANA EIVER BASIN. 



359- 









^ 




i 




'i 












^ 
g 




1^ 










^ 

3 




8 












2.68 
7.90 

1.45 
1.20 








d 


3.13 
?15. 49 

3.91 
3. SI 




§ 8 

o 












c3 ^ 




















S 3 
1 ^ 






8 














^ 8 
5' Si 




So" 




3I 

£11 


res 




< 


1 


lo 


,0 





g S * P.O 





TSt^* 


P* 


P<ft 


h° rt 






ftft . 


lill 


Ill 

ll! 







S 


n 










P; 


^i 


^ 














a^ 


-; § r-" 


S 


•Sd^ 


^11 




cjl^ 


E-<0>-5 





360 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Discharge measurements of Bedlunds or Bolen tunnel for 189&-J905. 



Date. 


Made by- 


Dis- 
charge. 


Date. 


Made by — 


Dis- 
charge. 


1896. 
Nov. 21 


J. B. Lippjncott . ... 


Sec-feet. 
1.00 

1.24 
1.24 

.67 
1.03 
1.10 

.88 

.84 
.85 


1901. 
July 6 
Dec. 5 

1902. 
July 10 

1903. 
Aug. 31 

1904. 
May 28 
June 29 
Sept. 21 

1905. 
Sept. 22 


S- G. Bennett 


Sec-feet. 
1.40 




J. B. Lippincott 


do 


.90 


1898. 
June 12 


S. G. Bpnnott- 




Sept. 8 

1899. 
June 15 


do 


.90 


S. G. Bennett.. 


W. B. Clapp-- 


1.8 


July 15 
Aug. 24 


do..... 


W. B. Clapp.. 




.do ... 




S. G. Bennett 


1. 69 


1900. 


do 


1.55 


Apr. 14 


do 


1.04 


July 13 
Oct. 2 


do 






W. W. Cockins, jr 








1.10 









WATER ABSORBED IN SAND AND GRAVEL. 

Dimng the winter of 1902-3 the precipitation in southern Cali- 
fornia was greater than at any time during the preceding 10 years. 
This condition led to heavy irrigation during the spring of 1903, many 
irrigators taking advantage of it to thoroughly saturate the soil at a 
time when water was plenty and cheap, thereby saving much expense 
and contention, which always accompanies a later irrigation when 
water is scarce and expensive and. the demand is greater than the 
supply. 

Immediately after the rain of April 16, 1903, a series of meas- 
urements were made by W. B. Clapp under the direction of the 
United States Geological Survey to determine the quantity of water 
being absorbed in the sand and gravel washes of the larger tributary 
streams of the three principal river basins of southern California — - 
Santa Ana, San Gabriel, and Los Angeles rivers. Measurements 
were taken at the mouths of the canyons where the streams leave the 
mountains, at all canal diversions, and at such intervals along the 
streams as time and the available force detailed for this work would 
allow, the location of the point where the stream entirely disappeared 
or left the valley being noted. These measurements show the quan- 
tity of water taken up in the sand and gravel wash of this stream on 
the days given, and the following tables give this quantity in second- 
feet and acre-feet for a period of 24 hours: 



SANTA ANA KIVER BASIN; 



361 



Water discharged froon tributary streams and sinking in the Santa Ana River, hasin above 

Colton, Calif. 





Second -feet. 


Acre-feet. 


stream. 


Diver- 
sion. 


Waste. 


Total. 


Diver- 
sion. 


Waste. 


Total. 


APR. 24, 1903. 


16 
5 


116 
34 
23 
22 
10 
8.6 
56 


132 
39 
23 
22 
10 
8.6 
63 


32 
10 


230 
67 
46 
44 
20 
17 

111 


262 


Mill Creek 


77 


Plunge Creek 


46 


City Creek 




44 


East Twill Creek 




20 


West Twin Creek 




17 


Lytle Creek 


7 


125 








28 


270 


298 


56 


535 


591 


MAY 16, 1903. 


47 
49 
6 
7 
2 
2 
15 


48 
19 
3 
4 
3 
2 
14 


95 

♦38 
9 

11 
5 
4 

29 


93 
97 
12 
14 
4 
4 
30 


95 

38 
6 
8 
6 
4 

28 


188 


Mill Creek 


136 


Plunge Creek 


18 


City Creek ... 


22 


East Twin Creek 


10 


West Twin Creek 


8 


Lytle Creek . ... 


68 








128 


93 


221 


254 


185 


439 



RETURN WATERS IN SAN BERNARDINO COUNTY. 



Natural Jiow, in second-feet, of return water compared with developed ivater in San 
Bernardino Valley above Colton, Calif , for 1898-1907 . 

[By K. Sanborn, engineer Riverside Water Co.] 



Date. 


location. 


De- 
veloped. 


Natural. 


Total. 


Sept. 4, 1903 


Bambill pumping plant 


0.80 
.85 
.77 
1.10 
.80 
1.30 
1.50 
1.70 
1.30 




80 


May 12,1904 
Aug. 15,1904 
June 9, 1905 


do 




85 


. . . . do. 




.77 


..do 




1 10 


Sept. 27,1905 
June 23,1906 


do... 




80 


.... do 


1 30 


Aug. 27,1906 


. ..do 

do 

.. do.-.. 


. 1.50 


June 25,1907 




1.70 


Sept. 18,1907 




1 30 


June —,1898 


Beam ditch 


0.67 
.65 
.72 
.52 
.40 
.68 
.50 
.33 
.22 
.08 
.02 
.00 
.00 
.00 
.00 
.00 
.00 
.00 


.67 


Sept.— ,1898 
Mar. —,1899 


.... do .. . 




.65 


do-.- 




72 


June —,1899 


do 




.52 


Aug. —,1899 
Mjir. —,1900 


.... do 




40 


do. . . . 




68 


June —,1900 


do 




' M 


Sept.— ,1900 
Oct. 13,1902 


.... do . 




33 


do.... 




•22 


Ausr. 17,1903 


...do: ... 




.€8 


June 4, 1904 


.. do . .. 




02 


Aug. 20,1904. 


...do 




.00 


June 10,1905 


do 




.bo 


Sept. 2,1905 


do 




00 


June 18,1906 


do 




.00 


Aug. 23,1906 


.... do - 




00 


June 21,1907 


do.... 




00 


Sept. 28, 1907 
June —,1898 


do 




.00 


Bloomington pumping plant 


5.20 
5. 49 

.00 
5.93 
3.05 
3.80 
3.68 
3.28 
2.28 
8.82- 

.00 
5.61 


5.26 


Sept. -, 1898 
Mar. —,1899 


do. ... . 




5 49 


do 




,00 


June —,1899 


do.... 




5.93 


Aug. -,1899 
Mar. —,1900 


do.... 




3 05 


do 

do 

do 




3.80 


June —,1900 




3.68 


Sept. — , 1900 




3.28 


Oct. 7, 1902 


.... do 




2.28 


Sept. 4,1903 


do. 




8.82 


May 12,1904 


.....ao..... 




.00 


Aug. 17,1904 


....do. 




6.61 



362 SURFACE WATER OE PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Natural flow, in second-feet, of return water compared with developed water in San 
Bernardino Valley above Colton, Calif , for 1898-1907 — Continued. 



Date. 


Location. 


De- 

veloped. 


Natural. 


Total. 


June 16 lonr. 




6.62 
7.20 
10.50 
6.70 
5.60 
6.50 
.11 
.61 
1.20 
2.13 
1.63 
1.02 
2.55 
2.60 
1.67 
1.70 
2.20 
2.50 
2.60 
2.60 
1.20 
2.70 
1.94 




6.62 


Sept. 27 
June 20 


1905 
1906 
1906 
1907 
1907 
1903 
1898 
1898 
1899 
1899 
1899 
1900 
1900 
1900 
1902 
1903 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1906 
1907 
1907 
1904 
1904 
1905 
1905 
1906 
1906 
1905 
1905 
1906 
1906 
1907 
1907 
,1898 
1898 
1899 
1899 
1899 
1900 
1900 
1900 
1902 
1903 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1898 
1898 
1899 
1899 
1899 
1900 
1900 
1900 
1902 
1905 
190G 
1906 
1907 
1907 
1903 


do . . -. . . 




7 20 


do ^. 

.... do *. 




10.50 


Sept. 20 
June 21 




6.70 


do 

do 




5.50 


Sept. 26 
Sept. 9 
June — 




6.50 






.11 


Camr» Carlton ditch 




61 


Sept. — 
Mar. — 


do 




1.20 


do--.- 




2.13 


JXXXXQ — 


do 




1 63 


Mar. — 


...do 




1.02 


. do..-- . - 




2.55 


June — 


do. 




2 60 


Sept. — 
Oct. 7 


...do 




1.67 


. do---- 




1.70 


Aug. 22 


do 




2.20 


do 




2.50 


Aug. 19 
May 31 
Aug. 14 
June 20 


do.--- 




2.60 


do 




2 60 


.. do 




1.20 


do.--- 




2.70 


Sept. 7 
June 20 


do 




1.94 


. .. do 


4.40 


4.40 


Sept. 25 
Aug. 12 


do.... 


3.10 
.72 
.72 
.60 
.40 
.70 
.00 
.00 
1.50 
4.00 
2.00 
.82 
1.02 


3.10 






.72 


June 10 


.do - - 




.72 


Aug 14 


do. 




.60 


Juno 19 


.... do 




.40 


Aug. 24 
June 22 


do-.-- 




.70 


do 




.00 


Sept. 20 
Sept. 20 
June 25 


do 




.00 






1,50 


do 




4.00 


Sept. 26 
May 31 
Aug. 17 


do 




2.00 


City of Pan Bernardino- . . . 


1.87 
1.79 
2.04 
1.90 
1.90 
2.00 


2.69 


do 

City of San Bernardino, Lytle Creek 


2.81 
2.04 


Sept. 27 
June 20 


do .-- - 




1.90 


do 




1.90 


Sept. 20 
Jtme 10 


do 




2.00 


City of San Bernardino, Sixth Street pumping plant 

do. 


1.99 
4.80 
2.00 
4.80 
4.00 
2.30 
6.82 
7.40 
3.20 
5.49 
3.89 
4.94 


1.99 


Sept. 27 
Jvine 29 




4.80 


do 




2.00 


Oct. 23 


do-... 




4.80 


June 20 


do 




4.00 


Sept. 28 


do 




2.30 






6.82 


Sept. — 
Mar. - 


do- 




7.40 


do 




3.20 




do.--- 




5.49 


Mar. — 


do 




3.89 


do 

. do..-- - - 




4.94 


June — 


3.21 

3 54 




3.21 


Sept. — 
Oct. 7 


do.. 




3.54 


do 


3.53 
3.17 
3.00 
2.06 
3.81 
2.70 
2.40 
3.50 
4.50 
4.50 
1.97 
1.61 
1.69 
1.30 
1.30 
1.09 
1.54 
1.53 
1.08 
1.20 

.70 
1.60 
1.20 

.00 
2.70 




3.53 


Sept. 4 
May 12 


. .. do..-- . . .. 




3.17 


do 

do 

dO---- 




3.00 


Aug. 19 




2.06 


June 9 




3.81 


Sept. 27 
June 19 


do.-- 


5 


2.70 


do 

..do ... 




2.40 


Aug. 27 




3.50 


June 25 


City of Colton pumping plant (total) 




4.50 


Sept. 18 


do 




4.50 


June — 


City of Colton (water used for irrigating) 




1.97 


Sept. — 
Mar. - 


.do 




1.61 


do 

do 




1.69 


June — 





1.30 


Mar. — 


do 





1.30 


do. 




1.69 


June — 


do 




1.54 


Sept. — 
Oct. 7 


do 




1.53 


do 




1.08 
1.20 

.70 
1.60 
1.20 

.00 
2.70 


Sept. 27 
June 19 


. .. do 




do . - 




Aug. 27 
June 25 


do 




do 




Sept. 18 
Sept. 7 


. do 




Cooley tract, artesian welL 





SANTA ANA RIVER BASIN. 



363 



Natural flow, in ^ecoTid-feet, of return water compared with developed water iyi San 
Bernardino Valley above CoUo7i, Calif., for 1898-1907 — Continued. 



Date. 


Location. 


De- 
veloped. 


Natural. 


Total. 


June — , 1R9S 


Daley ditch 




0-63 
.67 
.71 
.51 
.51 
.72 

1.12 
.54 
.00 
.00 
.00 
.00 
.00 
.00 
.00 
.00 
.00 


0.63 


Sept. -- 
Mar. — 


1898^ 
1899 
1899 
1899 
1900 
1900 
1900 
1902 
1903 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1905 
1905 
1906 
1908 
1907 
1907 
1898 
1898 
1899 
1899 
1899 
1900 
1900 
1900 
1902 
1903 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1898 
1898 
1899. 
1899 
1899 
1900 : 
1900 
1900 
1902 
1903 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1903 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1898 
1898 
1899 
1899 
1899 
1900 
,1900 
1900 
1902 
1903 
1904 


do .- . 




.67 


do 




.71 




do 




.51 


Aug. - 
Mar. — 


... do 




.51 


do 


. 


.72 




do 


- 


1.12 


Sept- — 
Oct. 13 


...do 




.54 


do 




.00 


Sept. 9 
June 4 


do 




.00 


do 




.00 


Aug. 20 
June 10 


do 




.00 


do - 




.00 


Sept. 4 


do 




.00 


June 25 


. ...do.... 




.00 


Oct. 24 


do 




.00 


June 20 


do 




.00 


Sept. 25 


do. 


0.00 

.05 
.40 
.GO 
.75 
.65 
.05 


.00 


May 30 


Excelsior Land & Water Co 




.65 


Sept. 28 


do..-. 




.40 


June 27 


do 




.60 


Aug. 24 


do 




.75 


June 19 


do 




.65 


Sept. 18 


do 

Gage canal intake, Santa Ana River 

do 




.65 


June — 
Sept. — 


i.ie 
Lie 

.72 
.24 

.u 

.395 
.29 

;J5 

.00 
.00 
.00 
.00 
.00 
8.30 
.00 
.00 
.40 


1.16 
1,16 


Mar. — 


do : 




.72 


June — 


. do 




.24 


Aug. — 


do 




-64 


Mat. - 


do 




-395 


June — 


do 




.29 


Sept. — 


do 




.17 


Oct. 7 


do 




.00 


Aiig. 21 


do 




.00 


May 31 


do... 




.00 


Aug. 15 


... do 




.00 


May 26 


do... 




.00 


Sept. 4 


do 




.00 


June 19 


.....do 





.00 


Sept. 7 


do-..r . 




.00 


June 20 


.... do ! 


.00 


Sept. 20 


do 


.40 


June — 


Gage canal, Palm Avenue weir. . 


26.26 
25.07 
26. 68 
25.22 
23.47 
21. 96 
22.23 
27.85 
30.17 
30.82 
27.80 
31.96 
28,83 
32.70 
22.90 
38.00 


26.26 


Sept. — 


do. - 

do... 

.....do... 

do 




25.07 


Mar. - 




26.68 


June — 




25.22 


Aug. — 




23.47 


Mar. - 


do 

do.. 

do 

do 

do 




21.96 


June — 

Sept. — 




22.23 

27.85 


Oct. 11 




30.17 


Aug. 21 




30.82 


May 31 


do... 




27.80 


Aug. 19 


do :.:.::::::::::::::::::::::;:: 

do 

do... 

do 




31.96 


May 31 




28. S3 


Sept. 2 




32.70 


June 20 


8.30 


31.20 


Sept. 7 


do... 


38.ffl) 


June 20 


do 


50.16 
.40 


50.10 


Sept. 20 


do... 


33.20 
.77 
.34 
,34 
.54 
.00 
.30 
.35 
.70 
.00 


33.60 


Sept. 9 


Garner tract, artesian well 


.77 


May 12 


Grand Terrace pumping plant 

do 




,34 


Aug. 17 




.34 


May 31 


do : 

do 




.54 


Aug. 14 




,00 


June 9 


do 




.30 


Sept. 7 


do... 


.35 


June 20 


do 




-70 


Sept. 20 


do 


.09 


June — 


Haws & Talmadge ditch 


.84 
.00 
.28 

.00 

.00 
.00 
.00 
.09 
.00 
.00 
.09 


.84 


Sept. — 


do... 


.00 


Mar. - 


do ,. 





.28 


June — 


do.. 




.00 


Aug. — 


do 




.00 


lul - 


do... 




.00 


June — 


do 




.00 


Sept. — 


do... 




.00 


Sept. 30 


do.. 




.00 


Aug. 17 


do........ 




.00 


May 13 


do.. 




.09 



364 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Natuml flow, in second-feet, of return water compared with developed water in San 
Bernardino Valley above Colton, Calif., for 1898-1907 — Continued. 



Date. 


Location. 


De- 
veloped. 


Natural. 


Total. 


Aug. 15,1904 
June 2, 1905 
Sept. 5,1905 
June 14,1906 
Aug. 23,1906 
June 21,1907 


Haws & Talmadge ditch 




0.00 
.00 
.00 
.05 
.08 
.08 


0.00 


do 




.00 


do 




00 


do .. 




05 


do 




.08 


do 




00 


Sept. 28,1907 
Sept. 4, 1903 


do 


0.00 
1.79 
1.82 
1.54 
1.09 
1.60. 
1.90 
1.50 
1.50 
1.50 
.21 
.42 
.67 
.39 
.59 
.30 
.52 
.48 
.40 
.00 
.24. 
.25 
.25 
.30 
.00 
.00, 
.00 
.00 
.00 
.59 
.65 
.50 
,.62, 
'.60, 
.60 
.70 
.90 
.90. 


-00 


Hunter pumping plant 




1.79 


June 2, 1904 
Aug. 17,1904 
June 0, 1905 
Sept. 4,1905 
June 19,1906 
Aug. 27,1906 
June 25,1907 
Sept. 18,1907 
Sept. 9,1903 
Sept. 4,1903 
June 2,1904 
Aug. 17,1904 
June 9, 1905 
Sept. 4,1905 
June 23,1906 
Aug. 27,1906 
June 25,1907 
Sept. 18,1907 
Sept. 4,1903 
May 12,1904 
Aug. 15,1904 
June 9, 1905 
Sept. 27,1905 
June 23,1906 
Aug. 27,1906 
June 25,1907 
Sept. 18,1907 
Sept. 4,1903 
June 12,1904 
Aug. 15,1904 
June 9, 1905 
Sept. 27, 1905 
June 23,1906 
Aug. 27,1906 
June 25,1907 
Sept. 18,1907 
June — 1898 


.... do 




1 82 


do 




1.54 


do 




1.09 


do. . 




1 60 


do 




1.90 


do 




1.50 


do 




1 50 


.....do 




1.50 


Hurd tract, artesian well 




.21 


Johnson & Hubbard pumping plant 




.42 


do 




.07 


do 




.39 


do : 




.59 


do 




.30 


do 




.52 


do 




.48 


do 




.40 


do 




00 


Lamb pumping plant 




.24 


..do 




.25 


do ? 




.25 


do .... 




.30 


do 




.00 


do 




.00 


do . . 




.00 


do 




.00 


do 




.00 


Lawson Well Co., pumping plant 




.59 


do 





.65 


do - . 




.50 


do 




.62 


do 




.60 


... do 




.60 


do 


• 


.70 


do 




.90 


do 

Logsdon & Farrell ditch 




.90 


.72 
.63 
1.61 
1.15 
.54 
1.26 
.49 
.20 
.00 
.00 
.00 
.00 
.00 
.00 
.00 
.00 
.00 
.00 


.72 


Sept. — ', 1898 
Mar — 1899 


do 




.63 


do 




1.61 


June —,1899 


do 




1.15 


Aug. —,1899 
Mar. —,1900 


do 




.54 


do 




1.26 


Jmie —,1900 


do 




.49 


Sept. —,1900 
Oct. 13, 1902 
Aug. 22,1903 
June 4, 1904 
Aug. 3, 1904 
June 10,1905 
Sept. 2,1905 
June 18,1906 
Oct. 24,1906 
June 20,1907 
Sept. 25, 1907 
Aug. 17,1904 
June 10,1905 
Sept. 27, 1905 
June 20, 1906 
Sept. 20, 1906 
June 22,1907 
Sept. 20, 1907 
June — 1898 


do . . 




.20 


do 




.00 


... do 




.00 


do 




.00 


do ■ 




.00 


. do 




.00 


do 




.00 


do 




.00 


.. do 




.00 


do 




.00 


do - 




.00 


Lj^le Creek Water & Improvement Co. pumping plant . . . 
.do.. . . 


4.00 
.00 
.00 
.00 
.00 
.00 
.00 


4.00 




.00 


-do. . 




.00 


do 




.00 


.do 




.00 


do 




.00 


do 




.00 


Mclntyre ditch 


.37 
.038 
.82 
.15 
.00 
.14 
.01 
.00 
.00 
.00 


.37 


Sept. -1 1898 
Mar. — 1899 


do . . . . . 




.038 


...do 




.82 




.do 




.15 


Aug. -' 1899 
Mar 1900 


do 




.00 


do 




.14 


June ' 1900 


..do 




.01 


Sept. — ' 19Q0 
Oct. 7,1902 
Sept. 9,1903 
Aug. 15,1904 


.do 




.00 


do 




.00 


.do 




.00 


do 




.00 


.00 



SANTA AFA KIVER BASIN. 



366 



Natural flow, m second-jeety of return water compared ivith developed ivaier in San 
Bernardino Valley above Colton, Calif. Jor 1898-1907— Gontmue^, 



Date. 


Location. 


De- 
veloped. 


Natural. 


Total. 


June 16.1905 






0.00 
.00 
.00 
.00 
.00 
.00 
2.54 
2.08 
9.40 
3.86 
2.00 
2.30 
1.57 
1.69 
.00 
.00 


0.00 


Sept. 28'l90.'i 


..do 




.00 


June 22 


1906 
,1906 
1907 
1907 
1898 
1898 
1899 
1899 
1899 
1900 
1900 
1900 
1902 
1903 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1898 
1898 
1899 
1899 
1899 
1900 
1900 
1900 
1902 
1903 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1904 
1904 
1903 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1898 
1898 
1899 
1899 
1899 
1900 
1900 
1900 
1902 
1903 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 


.do 




.00 


Sept. 20 
June 25 


do 




.00 


... .do 




.00 


Sept. 18 


.(Jo 




.00 


McKenzie ditch •. 




2.54 


Sept. - 
Mar. — 


do 




2.08 


.do 




9.40 




do 




3.86 


Aug. - 
Mar. — 


..do . 




2.0O 


do '. 




2.30 




do 




1.57 


Sept. — 
Sept. 30 


do . 





1.69 


.....do 


.00 


Aug. 17 
May 13 


. .do . .... 


.00 


do.. .. 

do 

.do 


0.67 
.58 


.67 


Aug. 12 
June 2 




.58 


.00 

.00 

.00 

.00 

.00 

.00 

8.42 

17.00 

17.00 

15.48 

10.45 

13.94 

13.78 

14.68 

13.40 

12.87 

16.30 

16.75 

15.70 

15.50 

16.90 

17.10 

22.30 

17.10 


.00 


Sept. 5 


do 


.00 


June 18 


..do ' 


.00 


Aug. 23 


do 


.00 


June 21 


do 


.00 


Set)t. 28 


do . . . 


.00 




Meeks & Daley ditch 


8.42 


Sept. — 


.do 


17.00 


Mar. — 


do 


17 00 




..do 


15.48 


Aug. — 
Mar. - 


.do. . 


10.45 


do 


13.94 


June — 


.do 


13.78 


Sept. — 


do 


14.68 


Sept. 30 


. ..do 


13.40 


Sept. 1 


.do 


12 87 


May 31 


do 


16.30 
16 75 


Aug. 3 


..do L. 


June 9 


do, 1 


15.70 


Sept. 2 


. . .do i . . 


15.50 


June 28 


.do. ' 


16 90 


Aug. 31 


do ' 


17. 10 


June 19 


.do . 


22,30 


Get. 3 


do 


17.10 


May 12 


Merryfield pumping plant 


.90 
.80 
.67 
.40 
.80 
.79 
.70 
.70 


.90 


Aug. 5 


.do 




80 


May 30 


::::.dS::..; :;:: 

.. .do 

.do. . 




.67 


S^t. 28 




.40 


June 28 




SO 


Aug. 24 


do 




.79 


June 19 


. ..do 




70 


Sept. 18 


do 




.70 


May 21 


Mount Vernon Water Co 


.91 
.91 


91 


Aug. 17 


do 




.91 


Sept. 4 


Orange Land & Water Co. pumping plant 


1.08 
1.14 
1.12 
.00 
1.60 
.00 
.00 
.00 
.00 


lies 


May 12 


..do 




1 14 


Aug. 17 


do 




1.12 


June 9 


do 




.00 


Sept. 27 


do 




1.60 


June 23 


do 




.00 


Aug. 27 


do 




00 


June 25 


do 




.00 


Sept. 26 


do 




00 


June — 


Rabel ditch. 


5.37 
3.07 
2.26 
1.54 
.94 
.54 
.35 
.07 
.00 
.00 
.00 
.00 
.00 
.00 
.00 
.00 
.60 
l.OO 


5 37 


Sept. — 


do 




3.07 


Mar. - 


do 




2.26 


June — 


do 




1.54 
.94 


Aug. — 


do 




Mar. — 


do 




54 


June — 


do 




35 


Sept. — 


do. 




.07 


Sept. 30 


do 




00 


Aug. 17 


do 




OO 


May 13 


do . 




.00 


Aug. 15 


do. 




.00 


June 2 


.....do 




vOO 


Sept. 5 


do . . 




^fid 


June 14 


do 




.00 


Aug. 23 


do 




.00 


June 21 


do 




.60 


Sept. 28 


do 




l.iOO 



366 SURFACE WATER Oi' PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Natural flow, in se<;07id-feet, of return water compared ivith developed water in San 
Bernardino Valley above Colton, Calif., for 1898-1907 — Continued. 



Date. 


Location. 


De- 
veloped. 


Natural. 


Total. 


June —.1898 


Ranchero ditch 




1.75 
1.64 
1.64 
1.00 
.41 
.24 
.55 
1.33 


1 75 


Sept. — 
Mar. — 


1898 
1899 
1899 
1899 
1900 
1900 
1900 
1903 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1898 

1898 
1899 
1899 
1899 
1900 
IGOO 
1900 
1903 
1904 
1904 
1905 
1905 
1908 
1906 
1907 
1907 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1898 
1898 
1899 
1899 
1899 
1900 
1900 
1900 
1902 
1903 
1904 
1904 
1905 
1905 
1906 
1903 
1907 
1907 
1898 
1898 
1899 
1899 
1899 
1900 
1900 
1900 
1902 
1904 
1904 
1905 
1905 
1906 
1908 
1907 
1907 
1898 
1898 


do ... 




1 64 


-do. . 




1 64 


June — 


do 




1.00 


Aug. — 


.. -do. . 




41 


Mar. — 


do 




.24 




do ... 




.55 


Sept. — 


.. -do. . 


0.80 
1.09 
1.46 
1.30 
1.24 
1.10 
2.00 
1.90 
2.00 
2.00 

4.40 
4.43 
4.25 
2.08 
2.00 
6.59 
5.38 
3.70 
8.98 
7.92 
2.00 
7.05 
8.00 
3.60 
6.10 
4.20 
5.40 
.00 
6.43 
6.36, 
7.60 
l.SO 
6.90 
2.50 
3.60 
18.00 
17.54 
18.04 
17.50 
27.50 
24.54 
52.38 
27.00 
26.08 
23.89 
29.44 
19.85 
25.33 
21.20 
2.90 
23.65 


2 13 


Sept. 7 




i.09 


May 12 


.. ..do. 




1 46 


Aug. 17 


do 




1.30 


June 16 


do 




1.24 


Sept. 27 


.do. . 




1 10 


June 20 


...do 




2.00 


Sept. 20 


do . 




] 90 


June 25 


do 




2.00 


Sept. 26 


do 




2.00 


June — 


Riverside Highland Water Co. pumping plant, liytle 
Creek 




4.40 


Sept. — 
Mar. — 


do 




4.43 


-do 


... 


4 25 


June — 


do 


2.08 


Aug. — 


. .do. ... 





2 00 


Mar. — 


.....do 




6.59 




.. ..do.. 




5.38 


Sept. — 


-do 







3.70 


Sept. 4 


do 


8.98 


May 12 


.do 




7.92 


Aug. 17 
June 16 


do 




2 00 


.. ..do 




7.05 


Sept. 28 
June 20 


do. - . - . . . . 




8.00 


do 




3 60 


Sept. 20 


.do 




G.10 


June 25 


do 




4.20 


Sept. 26 


do 

Riverside Highland Water Co., Santa Ana River. . 




5.40 


May 12 




.00 


Aug. 19 


do 


.42 


C.85 


May 31 


.do 


6.36 


Sept 4 


do 


.40 
2.50 


8.00 


June 20 


do 


4.30 


Sept. 7 


.do 


6.90 


June 20 


do . . 


1.60 


4.10 


Sept. 25 
June — 

Sept — 


do 


3.60 


Riverside Water Co. upper canal 

-do 


41.04 
43.80 
42.49 
36.42 
24.54 
37.40 
20.58 
34.02 
21.89 
32.01 
12.96 
18.28 
24.85 
12.90 
38.60 
26.35 
63.00 
30,00 


59.04 
01.34 


Mar. — 


do 


60.53 


JxiXif^ — 


.do 


53.92 




-do 


52.04 


Mar. — 


..do 


61.94 


June — 


.do. . . . 


52.94 


Sept. — 


do 


G1.02 


Sept. 30 


.do 


47.97 


Sept 1 


do 


55.90 


May 31 


..do 


42.40 


July 29 


.do 


38.13 


May 31 


do 


50.18 


Aug. 31 


.do 


34.10 


Jun'^ 19 


.do . . . . 


41.50 


Aug. 31 
.Tune 19 


do. 

. . do 


50.00 
63.00 


Sept 26 


do 


16.00 

1.94 

2.04 

.00 

1.77 

1.67 

.00 

1.88 

1.52 

1.20 

1.32 

1.38 

.92 

1.30 

.00 

.00 

.00 

.00 


46.00 




Riverside Water Co mill pumping jDlant 


1.94 


Sept — 


... do 




2.04 


Mar _ 


do 




,00 


juti^ — 


do. -. 




1.77 




do 




1.67 


Maf - 


. . do 




.00 


.Tiine — 


do . 




1.88 


Sept — 


do 




1,52 


Sept. 30 
May 31 
July 29 


do 

do 




1.20 




1.32 


do ... 




1,38 


May 31 


do 

. . do 




.92 


Aug. 31 




1.30 


.Tune 23 


do 




.00 


Aug. 31 
June 27 


do 




.00 


do 




.00 


Sept. 20 
.Tune — 


. do 




.00 


Riverside Water Co. liiune 


3.12 
3.36 


3,12 


Sept. — 


do.... 




3.36 



SANTA ANA RIVER BASIN. 



367 



Natural flow, in second-feet, of return water compared with developed water in San 
Bernardino Valley above Collon, Calif., for 1898-1907— Gontmued. 



Date. 


Location. 


De- 
veloped. 


Natural. 


Totai. 


Mar 1899 


Riverside Water Co flume 




5.30 
7.29 
2.56 
2.67 
2.17 
.94 
.50 
.00 
2.68 
.00 
2.24 
.00 
16.70 
.00 
.00 
.00 


5.30 


June ' 1899 


do 




7.29 


Aug. —,1899 
Mar 1900 


do . 




2.55 


do 




2.67 


June ', 1900 


.. . do 




2.17 


Sept. — , 1900 
Sept. 30, 1902 
Aug. 18,1903 
May 31 1904 


do... 




.94 


do 




.50 


. . do 




.00 


do 




2.68 


July 29,1904 
May 31 1905 


do - - 




.00 


do.... 




2.24 


Aug. 31,1905 
June 20,1906 
Aug 31 1906 


do 




.00 


do 




10.70 


do .. 




.00 


.Tune 19,1907 
Sept. 20, 1907 
Oct 11 1902 


do 




.00 


do 




.00 


Riverside Water Co Hum'* purnp No. 1 


2.95 

4.08 

1.79 

2.99 

3.95 

3.60 

.00 

.00 

.00 

.00 

2.08 

2.63 

1.76 

2.52 

3.18 

3.00 

.00 

.00 

.00 

.00 

5.79 

9.33 

9.14 

4.38 

4.44 

.00 

.00 


2.95 


Aug. 18,1903 
May 31,1904 
July 29 1904 


do 

do--.. 


4.08 




1.79 


do 




2.99 


May 26^905 
Aug. 31,1905 
June 25 iQ08 


do 

do 




3.95 




3.60 


do 




.00 


Aug. 31,' 1906 
June 27 1907 


do 

do . . . - 




-00 




.00 


Sept, 20']907 
Oct 11 1902 


...do 




.00 


Riverside Water Co 15 ume pump No. 2 




2.08 


Aug. 18,1903 
May 31,1904 
July 29,1904 
May 26,1905 
Aug. 31,1905 
June 25,1906 
Aug. 31,1906 
June 27,1907 
Sept. 20, 1907 
Aug. 19,1903 
May 21,1904 
Aug. 23,1904 
Oct. 11,1902 


do 




2.63 


.. . do 




1.76 


do 




2.52 


do - 




3.18 


do 

do 


3.00 




.00 


do 


.00 


do.... . - . - 




.00 


do . 




.00 






5.79 


do 




9.33 


do 


9.14 






4.38 


Aug. 19,1903 
May 31,1904 
Aug. 15,1904 
June 6,1905 
Aug. 31,1905 
June 19,1906 
Sept. 7,1906 
June 19, 1907 
Sept. 18, 1907 


do 

do 




4.44 




00 


. . do 




.m 


do 


.00 


.00 


do 


.00 
1.60 
2.40 
.00 
2.20 
.60 
.50 
.30 
.00 
.50 
.00 
.00 
,40 


.00 


do.... 




1.60 


do--. 




2.40 


do 


.00 


do 




2.20 


May 21,1904 
Aug. 12,1904 
June 6, 1905 
Sept. 28, 1905 
June 28,1906 
Aug. 24,1906 




,60 


,. . do 




.50 


do. .. 




30 


do 




.00 


do 




.50 


do 

do 


. 


.00 


June 19,1907 
Sept. 26, 1907 
Juno — 1898 




,00 


do 




.40 


Shay or Stout dam ditch 


2.30 
2.08 
2.23 
1.13 
.90 
.507 
.40 
.16 
.00 
,00 
.09 
.00 
.00 
.00 
.00 
.24 
2.60 
1.30 
1.00 
1.02 
.85 

'.m 


2 30 


Sept. — , 1898 
Mar, —,1899 


do 




2.08 


do---- 




2.23 


June —,1899 


do 




1.13 


Aug. —,1899 


do 




.90 


Mar — , 1900 


do 




507 


June —,1900 


do 




.-W 


Sept. — , 1900 


do 




.16 


Sept. 30, 1902 
Aug, 17,1903 
May 13,1904 


do-..- 




00 


do 




.00 


do 




.00 


Aug. 15,1904 


do 




.00 


June 2, 1905 
Sept. 5,1905 
June 25,1906 


do 




.00 


do 




.00 


do .. 




00 


Aug. 23,1906 


do . - . - 




.24 


June 21,1907 


.. do 




2.60 


Sept. 28, 1907 


do 




1.30 


June —,1898 


■Swamp ditch 




1.00 


Sept. — , 1898 


... do 




1.02 


Mar. —,1899 


do- . 




.85 


June —,1899 


do-...-.. 






Aug. —,1899 


do 




.69 



36B SUEFACE WATER OF PACIFIC SLOPE J SOUTHERIT CALIFORNIA. 

Natural flow, in second-feet, of return water compared with developed water in San 
Bernardino Valley above Colton, Calif, for 1898-1907— Contmxied. 



De- 
veloped. 



1899 
1»99 
1900 
1900 
1900 
1902 
1903 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1903 



Swamp ditch.. 

do 

do 

do.--. 



..do.. 
..do.. 
..do.. 



..do-. 
..do-, 
-do.. 



.do-. 
..do-, 
.do.. 



Ward & Warren ditch . . 

.do 

do 



..do-. 
..do.. 
..do.. 



..do-. 
..do-. 
..do.. 

.do.. 
..do.. 

.do.. 



1.60 
.615 
1.56 
1.60 
1.60 
.53 
.30 
1.44 



..do.. 
..do.- 
. . do. - 

.do.. 
..do.. 

.do-. 



West Riverside Water Co. 350-inch pinnping plant. 

do 

....do 

. ...do . 

...do 

...do .... 

...do : 

...do 

...do 

do 

W^hiting ditch 

do ; 



5.94 
3.41 
6.52 
5.35 
2.00 
5.60 
6.00 
6.50 



do 

do 

do 

....do 

....do 

....do 

do 

do 

....do 

do 

do 

....do 

do 

do 

Whiting ditch... 
Whitlock ditch.. 

do 

.do 



..do.- 
..do-. 
-do-. 



.-do.. 
..do-, 
-do.. 



.do., 
.do. 
-do-- 



.do.. 
.do. 



.do., 
.do., 
.do-. 



.42 
.51 
.47 
.47 
.40 
.80 
.64 
2.20 
1.00 
.72 
.72 
1.49 



.95 
.10 



1.58 
.17 
.00 
.00 



.00 
5.10 

.06 
2.10 

.00 



Wozencraft tract, artesian well . . 



.01 
.76 
.246 
.01 
1.12 
.13 
.00- 
.00 
.00 
.00 
.00 
.00 
.00 
.00 
.00 
.00 
.34 
.38 
.47 
.28 



.00 
.00 
.00 
.00 
.00 
.00 
.00. 
.00 
.00 
.00 
.00 
.00 



SANTA AKA RIVER BASIN. 



369 



Return waters, in second-feet, in San Bernardino Valley below Slover Mountain and above 
Riverside Narrows, Calif., for 1898-1907, 

[By K. Sanborn, engineer Riverside Water Co.] 



Date. 


J..ocation. 


De- 
veloped. 


Natural. 


Total. 


Sept. 29, 1902 


Alvitrez diteh at headgate, east end of West Riverside 
Bridge 


Sec.-ft. 


Scc.-ft. 
1.96 
3.10 
1.63 
2.23 
3.00 
1.30 
5.20 
5.00 
.70 
2.50 


Sec.-ft. 
1.96 


Aug. 20, 1903 
May 13,1904 
Aug. 8,1904 
May 27,1905 
Aug. 11,1905 
June 27 1906 


. .do 




3.10 


do 




1.63 


do 




2.23 


.do . . 




3.00 


do 




1.30 


do 




5.20 


Aug. 28,1906 
June 24 1907 


. .do 




5.Q0 


do.... 




.70 


Sept. 19, 1907 
June 29, 1906 


do 




2.50 


California Orange Co., pumping plant. 


1.30 
1.40 

.00 
1.50 
2.45 
2.50 
2.25 
2.50 
2.50 

.00 
2.50 


1.30 


Sept. 7,1906 
June 24 1907 


.do 




1.40 


do . 




.00 


Sept. 20, 1907 
Aug. 18,1904 
June 6, 1905 


do 




1.50 


Cuttle's pumping plant 




2.45 


.do 




2.50 


Oct. 4 1905 


do . 




2.25 


June 29, 1906 


do 




2.50 


Sept. 7,1906 
June 24,1907 


.do 




2.50 


do 




.00 


Sept. 20, 1907 
Sept. 29, 1902 


.do 




2.50 


Evans Island or Jansen ditch, under west end of West 
Riverside Bridge 




5.35 
4.71 

3.43 
.00 
.00 
.00 
.00 
.00 

4.70 
.00 

2.17 
.81 

2.53 
.00 
.00 
.50 

1.90 
.00 
.00 
.00 
.53 
.70 

2.03 

1.31 

2.30 
.00 

1.70 
.00 

5.70 
.00 


5.35 


Aug. 20, 1903 
May 13,1904 
Aug. 8,1904 
May 27,1905 
Aug. 11,1905 
June 29 1906 


do . 




4.71 


..do.. = .. 




3.43 


.do 




.00 


....do.... 




.00 


.do 




.00 


do 




.00 


Sept. 3,' 1906 
June 24,1907 


.do.... 




.00 


do.. . ... 




4.70 


Sept. 19,1907 
Sept. 29, 1902 
Aug. 21,1903 
May 16,1904 
Aug. 11,1904 


.do 




.00 


Evans ditch near Riverside County line. . . 




2.17 


do 




.81 


do 




2.53 


do 




.00 


May 29,1905 
Aug. 11,1905 
Jime 26,1906 


.do - 




.00 


do - .... 




.50 


.do 




1.90 


Sept. 3,1906 
June 19 1907 


do 




.00 


do 




.00 


Sept. 20' 1907 
Sept. 29, 1902 
Aug. 22,1903 
May 16,1904 
Aug. 11,1904 
May 29,1905 
Aug. 14,1905 
June 25 1906 


do.. . 




.00 


Evans or Smith ditch, 1 mile below Riverside County line. . 




.53 


do ' '. 




.70 


....do 




2.03 


do 




1.31 


do 




2.30 


.do 




.00 


do ..." . . 




1.70 


Sept. .3,1906 
.Tune 19,1907 


.do 




.00 


.do.... 




5.70 


Sept. 20, 1907 
June 2, 1904 


do 




.00 


Evans well ditch, Santa Ana Street : 


.51 
.04 
.00 
1.70 


.51 


Aug. 8,1904 
May 29,1905 
Aug. 9,1905 
June 23.1906 


do 




.04 


. .do 




.00 


do ... 




1.70 


...do 


.00 
.00 
.00 


.00 


Sept. 3; 1906 
June 19,1907 


.do.... 




.00 


do 




.00 


Sept. 23,1907 
June 3 1904 


.do.... 


.80 


.80 


Evans pipe line to China Gardens at headworks 


1.41 
.00 
.00 
.00 
.00 
.00 

1.40 
.00 


1.S 


Aug. 8,1904 
May 30,1905 
Aug. 11,1905 
June 29,1906 


.do 




.00 


do . . . 




.00 


...do 




.00 


.do 




.00 


Sept. 13,1906 
June 24,1907 


do 




.00 


..do 




1.40 


Sept. 19,1907 
Aug. 8, 1904 


do 




.00 


Evans pumping plant, 1,000 feet south of west end of West 
Riverside Bridge. . . 


3.03 
2.87 
4.20 
3.60 
5.53 
.00 


3.03 


May 27,1905 
Sept. 5,1905 
Jime 27,1906 


do 




2.87 


.do.-.. 




4.20 


do 




3.60 


Aug. 28,1906 


.do...... 




5.53 


June 24,1907 


do 




.00 


Sept. 19, 1907 


do 


.66 


.00 



142131°— 21— wsp 447- 



-24 



370 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Return waters^ in second-feet^ in San Bernardino Valley below Slover Mountain and above 
Riverside Narrott's, CttUf^y for 1898-1907— Continued. 



Date. 


Location. 


De- 
veloped. 


Natural. 


Total. 


Aug. 18,1964 


Evans Jurupa pumping piant 


Sec.-ft. 
2.00 
2.00 
.00 
.00 
.00 


8ec.-ft. 


Sec. ft. 


June 19 


1905 
1905 
1908 
1907 
1907 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1904 
1904 
1905 
1905 
1906 
1906 
190f7 
1907 
1904 
1904 
1905 
1905 
1906 
1906 
1907 
1907 
1898 
1898 
1899 
1899 
1899 
1900 
1900 
1900 
1900 

19m 
1904 
1904 
1905 
19(6 
1906 
1906 
1907 
1907 
19015 
1906 
.1906 
1906 
,1907 
,1907 
1904 
1904 
,1905 
,1905 
1906 
1906 
1907 
1907' 
1905 
1905 
1906 
1906 
1907 
1907 
1906 
1907 
1907. 
1902 
1903 
1904 
1904 
1905 
1905 
1908 


do „ 




2.00 


Oct. 4 


....do 




09 


June 29 


do.-... 




.00 


June 24 


do 




00 


Sept. 19 
June 3 


.do 


0.00 

1.72 

1.71 

2.20 

2. CO 

2.90 

3.25 

.00 

1.10 

.8G 

.92 

.00 

1.20 

.76 

.00 

1.60 

.00 


00 


Ferris Gailasier ditc^i near headworlcs... . 




1 72 


Aug. 8 


.do 




i 71 


Mav 30 


do 




2 20 


Aug. 14 


do 




■^.00 


June 30 


.do 




2 90 


Sept. 13 
June 24 


do- 




3 25 


..do 




.G& 


Sept. 19 
June 3 


do..-. 




1 10 


Galls c:ber ditch 




.86 


Aug. 18 
May 30 


.do...- . ... 




92 


do 




.00 


Aug. 14 


.do 




1 20 


June 30 


do 




.76 


Sept. 13 
June 24 


.do 




.00 


do... 




1 W 


Sept. 19 
June 3 


...do 




.00 


Jurupa pumping plsnt, to supply Rub^doux ditch 


.00 
4.35 
2. 10 
4.80 
2.30 
5.20 

.00 
4.80 


00 


Aue;. 11 


do 

.do 




4. 35 


May 59 
Aug. 15 
June 26 




2.10 


do.... 




4 80 


-do 




2.30 


Sept. 3 
June 22 


do--- - . .. - . 




5 20 


do 




.00 


Sept. 23 
June — 


.do 




4 80 


Lower ^nal, RrpBrside Water Co. . . 


10.3 
7.70 
16.20 
9.09 
7.38 
8.00 
7.16 
7. 13 
6.69 
3.07 
2.05 
3.15 
.39 
2.20 
.00 
3.10 
.00 
1L70 
.00 


10 30 


Sept. — 


-do 




7.7a 


Mar. — 


do---. 




16 20 


June — 


do 




9.09 


Aug. — 


do . 




7.38 


Mar. - 


do 




8,00 




.do 




7.16 


July 27 


do 




7 13 


Sept. - 
Sept. 29 
Aug. 21 


.. ..do 




6.69 


do 




3,07 


do . 




2 05 


May 21 


.. .do 




3.15 


Aug. 11 
May 30 


do ... 




.39^ 


do.... :.... 




2.20 


Sept. 5 
June 27 


.do 




.00 


do 




3 W 


Sept. 3 
June 19 


do 




.00 


do - 




11 70 


Sept. 23 
June 6 


do 




.oa 




2.hb 

2.25 
1.30 
2. .50 
2. 50 
1.50 


2.50 


Oct 4 


do 




2. 25 




...do 




1.30 


Sept. 7 
June 24 


do 

do 




2.50 




2 50 


Sept. 23 
May 16 
Am. 18 


do 

Riverside Power Co. canal at Pedley crossing 




1.50 


38,30 
29.50 
30.60 
27.00 
27. 70 
35.00 
49. 50 
36.09 


38.30 


do 




29.50 


Jime 15 


do 




30.60 


Sept. 22 
June 21 


do 




27.80 


do 




27.70 


Sept. 29 
June 26 


do 




35.00 


do ... - 




49.50 


Sept. 19 
June 19 


do 




36.00 




.89 

.60 
.80 
.70 
L35 
1.00 
.83 
2.30 
.00 


.80 


Oct. 4 


do . . ^ ... . . 




.§0 


TuHft 99 


Rivino Land Co. pumping plant No. 1 




.m 


Sept. 7 
June 24 


.do 




.70 


do .. 




1.35 


Sept. 23 
Sept. 13 
Jime 26 


do 




i.m 






.83 


do 




2.30 


Sept. 23 
Sept. 29 
Aug. 21 
May 16 


do 




.00 




7.19 

4.78 
6.49 
2.82 
4.92 
7.20 
4.40 


7. 19 


do .. .. . 


1.74 


6.52 


do 


8.4& 


Aug. 8 


do 




2.82 


May 29 
Aug, 15 


do 




4.^ 


do : 




7.3a 


June 26 


do 




4.40 



SAIS" GABRIEL. EIVEE BASIK. 



371 



Return ivaters, in second feet, in San Bernardino Valley belotv Slover Mountain and above 
Riverside Narrows, Calif., for 1898-1907 — Continued. 



Date. 


Location. 


J^e- 

veloped. 


Natural. 


Total. 


Sept. 3,1906 
June 19,1907 
Sept. 23, 1907 
Oct. 10,1902 
Aug- 25,1903 
Aug. 8,1904 
May 29,1905 
Aug. 11,1905 
June 26,1906 
Sept 3,1906 
June 22,1907 
Sept. 24, 1907 
Aug. 8,1904 
May 27,1905 
Aug 11,1905 


Ponbidoux ditch at measuring box 


Sec.-ft. 


Sec.-ft. 
2.00 
9.80 
1.60 

43.25 
40.70 


Sec.-ft. 
2.00 


.do 




9.80 


do 


4.80 


6.40 


Santa Ana River at Riverside Narrows 


43.25 


do 




40 70 


Spanishtown, ptinQ)ing plant at wier at end of main 

do ... . 


3.22 
4.17 
2.60 
4.60 
.00 
.00 
.00 


3.22 




4.17 


.do 




2.60 


do 




A. 60 


. ..do 




.00 


do 




.09 


do 





.00 


Springbrook, pumping plant at weir at end of main 


4.84 
5.58 
3.60 


4.84 


do 




5.58 


.. .do 




3.60 


June 23 1906 


do 


.09 
.00 
.00 


.00 


Sept. 3,1906 
June 22,1907 
Sept. 24, 1907 
Ausj. 8, 1 904 


do. 




.00 


do 




.00 


do 


.00 
1.49 
3.20 
2.70 
6.60 
5.30 
1.90 
3.70 
.00 
1.08 
1.40 
1.20 
2.20 
.00 
.00 
.00 


.00 


Soquel ditch 




1.49 


May 27,1905 
Axig. 11,1905 
June 27,1906 
Aug. 28,1906 
June 24,1907 
Sept. 19, 1907 
June 3,1904 
Ang. 8,1904 
May 30,1905 
Aug. 14,1905 
June 30,1906 
Sept. 13, 1906 
June 24,1907 
Sept. 19,1907 


do 




3.20 


....do 




2.70 


do 




6.60 


do 




5.30 


do 




L90 


do 




3.70 


Zimmerman pipe line 




.00 


do 




1.08 


do 




1.40 


do 




1.20 


do 




2.20 


do 




.00 


do ... 




.00 


do 




.00 









SAN GABKIEL, RIVER BASIN. 
GENERAL FEATURES. 

San Gabriel River is one of the three most important streams 
traversing the valley of southern California, Its drainage basin lies 
wholly in Los Angeles County west of the Santa Ana basin and east 
of the Los Angeles basin and stretches from the crest of the Sierra 
Madre to the Pacific, a distance of about 50 miles. Its total drain- 
age area is about 700 square miles, about one-third of which 
consists of mountain slopes, which contribute practically all of the 
run-off except in heavy storms. The remaining two-thirds is em- 
braced in the San Gabriel Valley at the base of the mountains and 
in the coastal plain southeast of the city of Los Angeles. 

The mountainous part of the basin is somewhat rectangular in 
shape. Its length east and west is about 25 miles and its width 
about 10 miles. It lies on the southern slope of the vSierra Madre, 
opposite the basins of Rock and Little Rock creeks, at the north, 
and on the southern slope of the San Gabriel Range, through which 
the river breaks near Azusa and enters the San Gabriel Valley. 

The main stream is formed by the junction of two principal forks, 
one from the north and east and the other from the west. Each of 
the branches receives many tributaries from the crests of the sur- 



372 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

rounding ranges. The headwaters come from the western slope of 
San Antonio Peak (Old Baldy), altitude 10,080 feet, and from the 
southern slope of other high peaks at the north, such as North Baldy 
and Islip mountains. The west fork drains the northern slope of 
Mount Wilson, the eastern and northern slopes of San Gabriel Peak, 
and a portion of the southern slopes of the main range to the north. 
It joins the main stream about 8 miles above the mouth of the can- 
yon. The general course of the stream is southwestward. After 
leaving the mountains it traverses San Gabriel Valley in a wide 
wash of sand, gravel, and bowlders, then breaks through the range 
of foothills separating San Gabriel Valley from the coastal plain at 
a point called The Narrows, about 5 miles northwest of Whittier, 
and enters the coastal plain, across which it flows to its mouth in 
Alamitos Bay, a few miles east of Long Beach. The total length of 
the stream is about 65 or 70 miles. 

The principal tributaries of vSan Gabriel River are Fish Fork and 
Cattle Creek from the east and Iron and West forks from the west. 

Altitudes in San Gabriel basin range from 20 to 200 feet on the 
coastal plain, from 200 to 900 feet in San Gabriel Valley, and from 
1,000 to 10,000 feet in the mountains. The range of foothills near 
Whittier has an altitude of about 1,250 feet. The topography is 
rough and rugged in the mountains, especially in the upper part, 
where deep and narrow canyons exists The geologic formation is 
granitic, with a light soil covering The San Gabriel Valley is more 
or less rolling and is composed of granitic wash from the mountains. 

The basin is rather poorly forested, having a sparse timber growth 
on the higher slopes and brush and some scattering timber on the 
middle and lower elevations. 

The mean annual precipitation in this basin varies from 15 to 20 
inches in the valley area and from 20 to 40 inches in the mountains. 
It occurs almost entirely as rain except on the higher peaks, where 
snow falls during the winter. On the northern slopes snow remains 
for several months. 

The total summer flow of the stream is used for irrigation, and the 
same water may be put to use several times in its journey from moun- 
tain to sea. About 5 miles above the mouth of the canyon a power 
canal, with a capacity of about 100 second-feet, takes water from the 
left bank of the stream and delivers it to irrigation canals below the 
wheels near the mouth of the canyon for irrigation in San Gabriel 
Valley. Some other small diversions are made in the spring months 
at and below the mouth of the canyon for the same purpose. Most 
of the excess water issuing from the canyon sinks into the sands and 
gravels of San Gabriel Valley to augment the underground basins, 
which are drawn upon for irrigating the lower part of the valley. 



SAN GABRIEL RIVER BASIlSsT. 



373 



Above The Narrows at the lower end of the valley the underground 
flow is forced to the surface by a bedrock obstruction, and this 
water, with additional water developed from many w^ells, is diverted 
through ditches for irrigating the higher parts of the coastal plain. 
The seepage loss from irrigation joins the body of underground 
water and is recovered from pumped and flowing wells in the lower 
coastal plain. Storage sites are practically lacking in this basin and 
opportunities for power development are not great. Probably not 
more than one-fifth as much power could be obtained in this basin 
as in the basin of the Santa Ana. 

GAGING- STATION RECORDS. 

SAN GABRIEL RIVER ABOVE FISH FORK, NEAR AZUSA, CALIF. 

Location.— About 300 feet above junction of Fish Fork with San Gabriel River, in 
NE. I sec. 32, T. 3 N., R. 8 W., in Angeles National Forest, about 15^ miles north- 
east of Azusa, Los Angeles County. 

Records available.' — 1900, 1901, 1910, and 1912 (low-water record only). 

Elevation. — About 3,300 feet above sea level. 

Drainage area. — 20.7 square miles. 

Discharge.' — Computed from gage-height record giving head on weir. 

Cooperation. — Record furnished by Pacific Light & Power Corporation, through G. O. 
Newman, engineer. 

Low-water record of daily discharge, in second-feet, of San Gabriel River above Fish Fork, 
near Azusa, Calif ., for 1900, 1901, 1910, and 1912. 



ray. 


' 1900 


1901 




1910 


1 • 1912 




July. 


Aug. 


Sept. 


Oct. 


Aug. 


Sept. 


July. 


Aug. 


Sept. 


July. 


Aug. 


Sept. 


1 . . ...... 


2.2 
2.5 
2.5 
2.4 
2.3 

2.3 
2.1 
2.1 
2.1 
2.2 

2.1 
2.2 
2.1 
2.1 
2.0 

2.1 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.2 

2.0 
2.0 
2.0 
1.8 

1.8 






1.7 
1.7 

1.7 

1.8 
1.8 

1.8 
1.7 
1.7 
1.7 
1.7 

1.8 
1.8 
1.9 








11 

10 
10 
10 
9.9 

9.9 
9.9 
9.8 
9.5 
9.6 

9.5 
9.4 
9.4 
9.4 
9.3 

9.2 
9.2 
9.2 
9.1 
9.1 

9.0 

"""s.'e" 

8.4 

8.4 
8.3 
.8.3 
8.3 
8.2 
7.9 


7.5 
7.5 
7.5 
7.5 
7.3 

7.3 
7.2 
7.3 
7.2 
7.2 




9.8 


8 1 


2 






6.7 
6.7 

6.0 
6.0 
5.5 
5.6 
5.6 

5.3 
5.5 
5.6 
5.4 
5.5 

5.8 
5.8 
5.5 
5.5 
5.4 

5.5 
5.2 
5.4 
5.4 
4.9 

4.5 
5.1 








3 


1.7 

1.8 
1.8 

1;8 

1.8 
1.8 
1.8 
1.8 

1.8 
2.0 
1.9 
1.9 
1.8 

1.7 

1:? 

1.7 

1.6 

1.7 
1.7 
1.7 
1.7 
1.7 

1.7 

1.6 
1.6 
1.7 
1.7 
2.0 


"i.'s" 

1.8 

1.7 
1.8 
1.7 
1.8 

1.8 

1.8 
1.7 
1.7 
1.7 
1.7 

1.6 
1.6 
1.8 
1.9 

1.8 

1.8 
1.6 
1.6 

i;7 

1.8 


5.2 
5.2 
5.3 

5.0 
5.0 
4.8 
5.0 
5.0 

5.0 
4.9 
4.9 
4.9 
4.7 

4.7 
4.7 
4.7 

4.8 
4.8 
4.9 
4.9 
4.7 

4.5 
4.4 
4.4 
4.4 
4.4 


10 

13 
12 
12 
12 
12 

12 
12 
12 
12 
13 

12 
12 

12 
12 
12 

12 
12 
11 
11 
11 
11 








4 








5 








6 






7.8 


7 




9.8 




8 




9 








10 






7 7 


11 




9.1 




12 


6.9 
6.8 

6.8 
6.8 

7.0 
7.1 
7.1 
7.0 
7.0 

7.0 
7.0 
7.1 

6.8 
6.8 

6.8 
6.7 
6.7 
6.7 
6.8 


10 




13 






14 








15 








16 






7 5 


17 




9.3 




18 




19 


10 






20 






21 




8.9 




22 


6.8 


23 


10 






24 . . . 






25 


10 


8.4 




26 


6 6 


27.... 




28 








29 












30 




4.9 
4,9 


10 






31 























374 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



SAN GABRIEL RIVER AT HEADWORKS WEAR AZUSA, CALIF. 

Location.— In SE. i sec. 31, T. 2 N., K. 9 W., at foTd 500 feet above intake of South- 
ern Califoraia Edison Co.'s canal, and about 6 miles northeast of Asusa, Los 
Aagele? County. 

Drainage area. — -Not measured. 

Elevation. — Abont 1,200 feet above sea level. 

Records available. — -December 9, 1912, to January 14, 1914. 

Gage. — Vertical staff bolted to granite cliff on right bank Just above ford. This 
gage was destroyed by the flood of February, 1914. 

Discharge measurements. — ^Made from cable at gage or by wading. 

Channel and control. — Gravel and boulders; shifts during high water. 

Extremes of discharge. — 1912-1914: Maximum stage recorded, 15.0 feet Feb- 
ruary 20, 1914 (discharge unknown); minimum stage recorded, 4.95 feet October 
1, 2, 18 to 21, 26, and 27 (discharge, 14 second-feet). 

x\ccuRACY. — Stage-discharge relation not permanent. Rating curves fairly well 
defined. Gage read to hundredths twice daily; more frequently during floods. 
Daily discharge ascertained by applying mean daily gage height to rating table. 
Records fair. 

Cooperation. — Gage-iieight record furnished by Pacific Light & Power Corporation. 

Discharge measurements of San Gabriel River at headivorks near Azusa. XMif.,for 1912- 

1914. 



Date. 


Made by— 


Gage 
hcigbt. 


Dis- 

cbarge. 


Date. 




Gage 
height 


Dis- 
charge, 


1912. 

Nov, 27 


F. C.Ebert 


Feet. 
4.68 

4.71 
4.74 
5.49 
5.42 


Sec.-ft. 
31 

31 
44 
175 
100 


May 28 ^ 
July 3 
Aug. 11 
Sept. 27 

1914. 
Jan. 12 


F. C.Ebert 


Feet. 
5.36 
5.16 
5.00 
4.97 

5.15 


Sec.-fL 
'70 


1913. 
Jan. 11 


F. C. Ebert 


do 

V^V.dol'//""".'.'".'.'.'. 

F. C. Ebeit..-. 


34 

18 


Feb. 5 
9 

Apr. 22 


do 

do 

H. D. McGlashan 


15 

39 







Daihj discharge, m second-feet, of San Gabriel River at headworks near Azusa, Calif., for 

1912-1914. 



Day. 



;c. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


31 


28 


40 


250 


160 


90 


60 


37 


18 


18 


Hi) 


28 


40 


230 


155 


90 


60 


37 


18 


18 


30 


28 


40 


220 


150 


90 


52 


37 


18 


18 


30 


28 


40 


225 


145 


90 


52 


37 


18 


18 


30 


28 


40 


220 


145 


90 


60 


37 


18 


18 


29 


28 


40 


215 


140 


90 


52 


30 


18 


18 


28 


28 


60 


230 


135 


90 


52 


30 


18 


18 


28 


28 


417 


215 


135 


85 


62 


30 


18 


18 


28 


33 


177 


210 


135 


85 


52 


30 


18 


18 


28 


33 


143 


195 


130 


85 


52 


30 


18 


18 


28 


33 


112 


200 


130 


85 


52 


30 


18 


18 


2K 


33 


93 


190 


130 


85 


44 


24 


18 


18 


28 


33 


84 


180 


130 


80 


44 


24 


18 


18 


28 


33 


75 


175 


130 


80 


44 


24 


18 


18 


28 


75 


75 


165 


120 


80 


44 


24 


18 


18 


28 


132 


68 


160 


115 


80 


44 


24 


18 




28 


132 


68 


150 


H)G 


75 


44 


24 


18 


18 


28 


84 


68 


155 


115 


80 


44 


24 


18 


18 


28 


68 


60 


155 


115 


75 


44 


24 


18 




28 


CO 


60 


ISO 


100 


70 


37 


24 


14 




28 


53 


60 


150 


100 


70 


37 


30 


18 




28 


46 


75 


145 


100 


75 


37 


30 


18 




28 


40 


60 


145 


100 


70 


37 


24 


18 




28 


40 i 


1,160 


140 


100 


65 


37 


24 


18 




28 


40 


1,150 


140 


100 


65 


44 


24 


18 




28 


40 


580 


135 


95 


65 


44 


24 


18 




28 


40 


370 


133 


95 


65 


60 


30 


18 




28 


40 


235 


130 


95 


69 


60 


30 


18 




28 


40 




130 


95 


60 


44 


24 


18 




28 


40 




145 


95 


60 


44 


24 


18 




28 


40 




155 




60 




24 


18 





25-. 

26.. 



SAN GABRIEL EIVEE BASIIT. 



a75 



Daily discharge, in second-feet, of San Gabriel River at headworl-s near Azusa, Calif., for 



Bay. 


Oct. 


; Nov. 


Dec. 


Jaa. 


Dajr. 


0«t. 


■ Nov. 


Dee. 


Jan. 


1913-14:. 
1 


1.4 
M 

18 
18 

18. 

18 
18 
18 

18-. 
18. 

18 
18 
18 
18 

18 


18 
24 
18 
18 
18 

IS 
18 
IS- 
IS 
IS- 
IS 
24 
110 
69 
44 


37 

37 
37 
37 

a7 

30 

30 
30 
30 
30 
30 


44 

44 
44 

! M 
3.7 
37 
3T 
37 

37 
37 
37 

; fa 


m3-I4. 
16 


18 
18 
14 
14 
14 

• 14 
18 
IS 
18 
18 

14 
14 
18 
'. 18 
18 
18 


37 
37 
44 
177 
78 

60 
&2 
52. 

i 44 
44 

44 
44 
37 
; 37 
37 


30 
30 
30 
30 
30 

30 

44 
60 

44 
44 

44 
44 
44 
44 
44 
44 




2 


17..:- 




3 


18 




4 


19 




5. 


: 20-.. 




S 


21 




7 


22:. 




8 


! ^ 




9 


■ 2#..... 




10 


25 




11 


23 




12 


27 




13 


28 




14 


'29 




15 


30 






zi 











N"OTE.— Daily cHscliarge Dec. 9, 1912, to Feb. 24, 1913^ determined from rating curve poorly defined above 
300 second-feet; May 28 to Sept. 30, 1913, froHi fairiy welt defined curresr Nov. 27 to Dec. 8, Pacific Light & 
Power Corp.'s record used; Feb. 25 to May 27, 1913, by Sbifting-coiattrol method. 



MomtMy: diseharge of Sun Gahriel B 


iver at headworhs near Azusa, Calif .y for 1B12— 1914. 


Month. 


Discharge in second- 

1 feet. 


\ Run-off 
<t0tal in 


Month. 


■ Discharge in second- 
1 feet. 


Bmi-off 
{tot.aliit 


i Maxi- 
j mum. 


Mini- 
mum. 


Mean. 


i aciB- 
feet). 


'' Maxi- 
i mum. 


Mini- 


:M^a. 


aere- 

feet). 


1912-13. 
December. 


31 

133 
• 1,160 
250 
160 
90 
60 
37 

m 

18 


2S 
2g 

130 
95 
60 
37 
24 
14 
14 


' 28.4 
. 46.2 
• 196 
176 
, 120 
■ 77.4 
; 47. 6 
38.0 
17.9 
17. 2 


1,750 
: 2, 840 
i 10; 900 
10,800 
\ 7, 140 
i 4,760 
, 2,830 
: 1,720 
i 1,100 

; 1,020 


1913-14. 
October 


18- 
177 

eo 

52 


\ 14 
18 

m 

27 


17.0 

42.5 

38. 8 

• 411.1 


1, 040 


JamHary 


November. 

Decentber. ...... 

Janoscry 1-14 

The period.. 


2, 5S0 


Febriiarv... 

March . ..... 


2,260 
1 220 


April 




May....... 








7,050 


June 




! 




: 


July 




August 




Septeaiber 




ThepeEfed. . 








1 44,960 















SAN GABRIEL. RIYER SEAR AZITSA, GALIF. 

LocATiOiS.— In KW.. | see. 2^,. T. 1 N., R. 10 W., near road crossing at mouth of 
ca.uyon, about half a mile above Southern California Edisoa Co. ''a power hous-e,. 
and 2 miles north of Azusa^ Los Angeles Cauntj. 

Drainage area.. — 222 square miles. 

El.e.yati©n.— About 750 feet above sea level.. 

Rkco^ds avaelabee. — 1894 to September SO, 1918^ 

Gaqe. — Gm-ley graph watey-stag.e recorder installed August, 1917 (see PL XII, 
B, C; p. 237)v on left bank at a. rock point above ford. Original location of gage 
was. just above ford at mouth of canyon. On account of frequent changes in 
chanfnel it has been necessary to install many gages at sites ranging from 1,000 
feet ab€ve; ford to^ 600 feet below. The various gages used from time to time have 
generally been installed at independent datuins. 

Discharge measureivIents.— Made fmm cable 1,000 feet above ford or by wading 
neasr gage. (See FI. TT, C, p. IT.) 

Channel ani> eoNTROL.— Gfavei and beutldem; shift® during' high water. Left bank 
is M^ and rocky; right bank low and e&vered with bru-sh. One channel at all 



376 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Extremes op dischakge. — 1894-1918: Maximum stage recorded, 12.0 feet January 
18, 1916 (discharge, 40,000 second-feet) ; no flow for several months each year. 

Diversions. — Power canal of Southern California Edison Co., which heads about 5 
miles above station, was completed in 1898. Water is occasionally diverted 
through tunnel, about 500 feet above ford, for irrigation. When it is measured, 
the discharge is included in tables of combined daily and monthly discharge. 

Regulation. — None. 

Accuracy. — Stage-discharge relation not permanent. Rating carves fairly well de- 
fined. Gage read to hundredths once daily; water-stage recorder used in 1918. 
Daily discharge ascertained by applying daily gage height to rating table or for 
periods not covered by rating curves, by shifting-control method. Records fair; 
those obtained previous to completion of Southern California Edison Co.'s canal, 
unsatisfactory. 



Discharge measurements of San 


Gabriel River near Azusa, Calif., for 1895-1918, 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by — 


Gage 
height. 


Dis- 
charge, 


1895. 
Nov. 5 


J. B. Lippincott 

do 

.....do 

J. B. Lippincott 

'!!!!do!!!!!"!!!!!!!!!! 

do . 


Fed. 
1.5 

"'i'b" 

1.35 

2.27 


Sec-ft! 
10.4 
b.O 
27.3 

4.9 
69.9 

fc.O 
19.9 

b.O 

b.O 

4.5 
57.8 
1,725 
422 
410 
162 
76.0 
6.0 
6.0 
6.0 
6.0 
6.0 
7.6 
3.5 


1901. 

Jan. 7 

Feb. 4 

5 

22 

Mar. 5 

29 

July 11 

Sept. 19 

1902. 
Jan. 25 
Feb. 26 
Mar. 6 
Apr. 8 
June 12 
Sept. 1 

1903. 

Jan. 29 

Feb. 5 

Mar. 23 

25 

May 23 

June 10 

13 

Sept. 14 

1904. 
Mar. 18 
Apr. 8 
19. 

1905. 

Feb. 10 
17 

Mar. 12 
14 
16 
24 
31 

Apr. 13 
19 

May 2 
9 

June 5 
23 

July 5 

Nov. 4 

1906. 

Jan. 19 
20 
20 

Feb. 10 
15 
15 
17 


S. G. Bennett 


Feet. 
6.16 
2.30 
7.6 
4.1 
3.0 
2.25 


Sec.-ft. 
o2, 710 


Dec. 11 
21 

1896. 
Feb. 19 
Mar. 22 
Apr. 30 


do 

'. '. ". ". '. do.'. . . .' .' ." .' ." ." .' ." ." .' ! .' .' ! 


112 

a6,250 
700 
248 
96.5 
6.0 
15.6 


Jiine 17 


W. B.Clapp... 






July 22 


J. H. Quinton 






Nov. 22 


J. B. Lippincott 




6.0 


1897. 


J. B. Lippincott 

.....do... 

::;::t.;:::;::::::::::: 

.....do 

do 

.....do 

A. S. Campbell 


1.28 

2.00 

5.1 

3.4 

3.3 

2.6 

2.08 


J. B. Lippincott 

J. Ahern 


2.05 
1.57 
1.4 . 


126 

46.2 


Jan. 10 

25 

Feb. 1 


S. G. Bennett , 

' W.B . ciapp '.....'. '. .... 


26.0 
6.0 


2 

Mar. 12 
Apr. 29 
May 24 
June 30 


C.A.Miller 


3.20 
1.70 
1.05 
3.50 
7.95 
2.20 
1.70 
1.50 


467 


AV. B.Clapp 


56 


".'.'.'.do..............'.'.'.. 


11 


July 5 

Aug. 7 
Sept. 1 

29 
Nov. 13 

27 


j'.'b. Lippincott. . "..'.. 


■*"2.*33' 
2.2 
2.1 


570 
8,430 
97 
38 
20 


28 


....do 










1898. 


J. B. Lippincott 

H. F.Crowe 


1.38 


23.3 
6.0 
6.0 
6.0 

1.5.4 
6.0 
6.0 

'""b'.b 
6.0 

15.9 
12.0 
16.0 
2.0 
1.0 


6,0 


Jan. 12 


W. B.Clapp 


1.30 

1.58 

2.20 
3.50 
9.30 
5.30 
5.80 
4.20 
3.80 
3.45 
3.30 
4.12 
3.50 
2.91 
2.60 
2.28 


14 


Mar. 8 


Clapp and Webb 

E. C. La Rue 


38 


Apr. 2 

May 10 

17 


J. B. Lippincott 






... do 






do 

F. H. Olmsted 


1.03 


190 


July 1 
21 


II S Hawley 


560 


J. B, Lippincott 




11,055 

2,030 

3,225 

611 

400 


Aug. 16 
21 


y/^'Ao'^v//^v.'.'^'.'.'.'.'^ 




W. B.Clapp 


R.S. Hawley 


22 
23 


do 

do 

'.'.'.'.'.do'.'..'.'.'.'.'.'.'.'.'.'.'.'.'.'.'. 

'.'.'.'.'.do..'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'. 

do 

W. B.Clapp 


1899. 
Jan. 11 
12 


J. B. Lippincott 


1.16 
1.08 
.90 

.78 
.70 


262 
190 
553 


13 




288 


14 




41 


15 

16 

Aug. 26 

Oct. 14 


'h." F.* Parkinson .'.' "'.'.'. 


Hawley and Clapp 

W. B.Clapp 


17 

6 00 




*"i."i6' 


13". 

49.0 
19.0 
38.0 
26.0 
9.0 
6.0 


M P Beeson 


3.88 
2.90 
2.95 
1.70 
2.70 
2.70 
2.60 




1900. 


H. F. Parkinson 


375 




".'do. ........'.'.'.'.'. 


104 


4 






110 


May 5 






do 

do 

do 

do......: 


3.5 








60 


11 






69 


Nov. 21 


S. G. Bennett 







a Computed by Kutter's formula. 



6 Stream dry. 



SAN GABRIEL RIVER BASIN. 377 

Discharge measurements of San Gabriel River near Aziisa, Calif., for 1895-1918 — Goii. 



Date. 


Made by — 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1906. 




Feet. 


Scc.-ft. 


1911. 




Feet. 


Sec.-ft. 


Mar. 12 


M. P. Beeson 


6.60 


4,940 


Feb. 14 


W. V.Hardy 


4.12 


503 


13 


.....do 


5.90 


3,360 


18 


do : 


3.90 


371 


13 


do 


5.40 


2,530 


Mar. 14 


do 


5.52 


2,110 


14 


do 


4.40 


1,210 


23 


do 


5.10 


963 


17 


do 


5.28 


2,190 


Apr. 16 


do 


4.60 


.580 


17 


do 


5.15 


2,140 


21 


do 


4.20 


350 


18 


do 


4.70 


1,440 


May 16 


do 


4.10 


214 


21 


do 


4.00 


666 


June 2 


do 


3.90 


121 


21 


do 


4.00 


688 


22 


do 


3.70 


76 


30 


do 


5. 10 


1,380 


Nov. 4 


Ebert and Lee 




do 


Apr. 4 


do 


4.50 


757 










18 


do 


3.80 


394 


1912. 








18 


do 


3.80 


436 


Mar. 19 


F. C. Ebert 


3.73 


132 


May 11 


do 


3.30 


209 


21 


do 


3.82 


109 


11 


do 


3.30 


212 


Apr. 9 


do 


4.13 


183 


June 1 


do 


3.55 


292 


May 17 


do 


3.70 


82 


1 


do 


3.55 


273 


29 


do 


3.53 


43 


29 


C.H.Lee 


2.90 
2,20 


157 
25 


1913. 








July 30 


W. B.Clapp 




Dec. 28 


W.B.CIapp andR.S. 
Hawley 






Feb 10 


F. C. Ebert 


3.07 


54 




5.20 


1,500 


11 

25 


do 

do 


2.98 
5.25 


25 






1,880 


1907. 








Max. 3 


do 


3.59 


124 


Jan. 2 


Clapp and Martin 

W. F. Martin .... 


3.03 


169 


4 


W. H. Spear 


3.59 


137 


9 


4.88 
4.3 


1,110 

706 


Apr. 2 
22 


F C Ebert 


3.38 
3.07 


64 


19 


do 


H. D. McGIashan 


27 


Feb. 7 


do 

do 


4.8 
4.2 


1,020 
618 


May 7 


F. C. Ebert 


2.91 


18 


28. 






Mar. 5 


do 


7.4 


5,980 


1914. 








5 


do 


7.0 


5,060 


Jan. 12 


F.C. Ebert 




d.O 


6 


do 


6.5 


3,660 


Feb. 10 


do 


a 1,46 


288 


6 


do 


6.4 


3,310 


15 


do 


al.l7 


205 


8 


do 


6.0 


2,590 


19 


do 


6 7.90 


4,560 


8 


do 


6.0 


2,630 


Apr. 14 


do 


M.94 


294 


13 


do 


5.2 


1,400 


30 


do 


&4.93 


277 


13 


do 


5.15 


1,350 


May 7 


do 


M.89 


221 


27 


.....do 


6.3 


2,020 


16 


do 


6 4.87 


197 


27 


.....do.. 


6.2 


1,900 


June 2 . 


do 


6 4.71 


132 


Apr. 5 


do 


5.4 


1,240 


24 


do 


cl.65 


65 


5 


.....do 


5.4 


1,290 


29 


do 


cl.57 


53 


15 


do 


5.0 


893 


July 6 


do 


cl.20 


19 


30 


W.B.CIapp 


4.4 


460 


13 


do 


cl.02 


12 


May 24 


do....:.. 


3.9 


258 


20 


do 


C.87 


5.7 


June 13 


do 


3.6 


192 


27 


do 


C.70 


3,0 


28 


do 


3.35 


141 


Aug. 3 


do 




d.O 


July 11 


.....do 


3.1 


88 


Dec. 23 


do 


.94 


23 


29 


W.F.Martin 


2.8 
2.1 


53 
2.8 


28 


do 




2.1 


Aug. 22 


do 
















1915. 








1908. 








Feb. 18 


F. C.'Ebert 


5.95 


420 


Jan. 27 


AV. F. Martin 


3.8 
5.6 


271 

1,885 


22 
25 


do 

do 


5.80 
5.85 


351 


Feb. 3 


do 


404 


19 


do 


3.35 


127 


Mar. 13 


do 


5.56 


256 


Apr. 14 
28 


W. B. Clapp ... . 


3.2 


80 


17 


do 


5.62 


274 


do 


3.1 


73 


22 


do 


5.54 


262 


May 18 


W.F.Martin 


2.85 


47 


24 


do 


4.73 


262 


26 


W. B.Clanp 


2.55 


31 


Apr. 9 


do 


4.67 


220 


June 13 


do....:.. 




4 


25 
May 13 


. .do 


4.52 
4.84 


166 








do 


286 


1909. 








June 15 


do 


4.13 


69 ' 


Feb. 26 


Clapp and Martin 

W.F.Martin 


4.5 


307 


28 


do 


1.48 


23 


Mar. 22 


4.95 


697 


July 5 


do 


1.48 


27 


Apr. 28 
May 14 


W.B.CIapp 


4.4 


296 


17 


.do. . . . ... 


1.16 


3.5 


do 


4.2 


230 










June 3 


do 


3.62 


110 


1916. 








22 


do 

do 


3.4 
3.1 


62 
27 


Jan. 3 
4 


F.C. Ebert 


1.82 
1.62 


63 


July 8 


do 


39 


. 21 


do 




1.8 


12 


do 


2.03 


107 


Dec. 18 


J. E. Stewart 


3.28 


24 


13 


do 


1.88 


76 










15 




2.08 


117 


1910. 








17 


do. 


10.30 


18,400 


Jan. 3 


J. E. Stewart 


5. 10 


1 870 


18 


do 


11 50 


32,400 
4,300 


29 


B. E.Haines 


3.60 


267 


19 


do 


7.38 


Feb. 28 


Clapp and Stewart 

W.B.CIapp 


3.15 


80 


19 


do 


7.10 


3,750 


Mar. 30 


3. .30 


108 


20 


do 


6.62 


2,380 


Apr. 12 


J.E.Stewart 


3.10 


84 


21 


do 


6.34 


1,570 


29 


W.B.CIapp 


2.80 


43 


24 


do 


5.80 


848 


May 5 


do....*.^ 


2.63 


23 


Feb. 10 


do 


5.07 


638 


13 


do 


2.24 


6 


14 


do 


4.98 


541 


June 3 


do 


1.85 


do 


25 


do 


4.62 


346 



a Temporary gage installed Feb. 10, 1914. 
6 Old gage at original section at the ford. 



c Temporary gage installed June 11, 1914. 
d Stream dry. 



31 S SURFAC]-: WATER 0¥ PACIFIC St.OPE,, SOUTHERN CALIFORNIA. 

Discharge vieasurements. of San Gabriel River neax' Azusa.^ Calif., Jqj' 18.9.5-1918 — Gomtd.. 



Made by- 



Gage 
height. 



Bis- 
cfiarge. 



Made by^ — 



height. 



Dis- 
charge. 



1916. 
Feb. 26 
Mar. 2 



Apr. 



25 
May- 1 



19 
31 

June- 5 
10 
30 

Oct. 25 

1917. 
Jan. 3 



26 

Feb. 9 

15 



1'. C. Ebert-. 

do 

do 

.do. . 



H. J. TompM-as 

F..C. Ebert. 

Dortand TompMns.. 

do - 

F. C. Ebert 

.do-- 



H. J. Tompkins. . 

F. C. Ebert 

7.G. Bort... 

F,C. Ebert 

J. C. Bert -. 

H. J, Tompkins. . 
do 



F.C. Ebert 

H..J. Tompkins.. 

F. C. Ebert 

....do 



H. J. TomT>kLns. . 

je. e. Bort: 

H. J. Tompkins^ . 

F. C. Ebert 

do 

do 

H. J. Tompkins. . 

F. C. Ebert 

do.—. 



Feet. 
4.92 
4. 90 
4.92 

4.74 
4. 45 
L34 



.92 
.59 
.52 
.40 
.19 

~.ia 



S£C.-ft. 

525 



335 

283 



104 
92 



54 

m 

36 
22. 

582 



74B. 
173; 

133: 
92 



1917. 

Mar. 26 

Apr. 7 

19: 

25 

May 17 



Apr. 



F. C. Ebert. . 
.do-- 



H. J. Tom,pkiH,s. . 

do 

F. C. Ebert 

.-..do. 



F. C. Ebert . 
....do-- 

do 



do 

do 

e.w. sopp.- 

-do. . 
.do.. 



H.. J. Tompkixis. . 

do.-...^ 

P. C. Ebert 



H. J. Tompkins. 

....do.. 

.do.. 



F:.C. Ebert. 
C. W. Sopp . 

F. C. E.bert. 

G. Vv\ Sopp. 



_-..do 

F. C. Ebcr 



Feet.. 
3-. 80 
3.55. 
3u50 
3.50 
1.02 



58 
43 



1, 730 

487 



322 
50 



542 
356 
317 
m> 
11* 
119 

77 

72 

53 

4S 

20 
3.0 
.3 



Note.-— 1^15: Measurements beginEmg Mar. 24 referred toaiew gage; beginning Jun.e 28 relerred t© tem- 
porary gage. 

1916: Lower gage read .Tan. 3 to 15. Gage aliove ford read 5.15 feet .Tan. 12.. New g.ag.o- read Apir. 7 to. 
June 10; old gage read 4.35, Apr. 7; old gage read 4.32 Apr. 11. Measurements, on Jan. 17 and 18 were mad©-- 
bv floats; coefEcient of 0.80 used to reduce S:Urface velocities to m«an velQcities. 
■l917: Upper gage read Jan. 9 and 26, Feb. 9-'and- 15,.am<i May 17 amd28, 1917. 

cr Stream dry. 



Daily: 



:, m second-feet^ of San Qokriel River mear Azusa^, Califs for 1894-19^18 . 



Bay. 



May. 



Aug. 



July. 



Aug. 



189-L 
1 



30 
30 
30 



26 
26. 



28i : 
2fi, 



22; r 

2& ; 



23. 
24 : 



17 r 
15. ; 



m i 

15 i 



14 



la ' 

13. i 



11 '; 

m \ 

li i 

135 \ 

M ' 

15. I, 

Vi i: 

1* 

15: \ 



:i6 

'17 

'18 

:i9 

1 20 

I21 

1 22 

[23 

124...... 

I 25 

' 26 

; 27' 

2.S 

.m. 

130: 

31 



38 ; 
34 1 
32 
33 ; 

32 
32 
30 ■ 



27 
27 



24 

24 



21 

21 : 



19: ; 

IS- 

m ■: 

18- i 



13 : 
li3> 



II 



m 



13. 

13 
B 

14 .. 

13 

13 

la 

13 
13 



15. 

27 



1# 

la 

13 
13 
13 
13 
13; 

m 
ta 

13 
14 

m 



SAINT GABRIEL RIVER BASIN. 379 

Daily disckarge, in second-feet, oj San Gabriel River near Azusa, Calif .^jor 1894-1918 — Con. 



Oct. 


Nov. 


Aug. 


Sept. 


10 


14 




39 


15 


14 




3S 


14 


13 




36 


1-i 


13 




30 


13 


13 




36 


13 


13 




30 


14 


13 




36 


14 


13 


47 


35 


13 


13 


47 


34 


14 


13 


47 


34 


14 


13 


40 


33 


14 


13 


46 


32 


13 


13 


46 


32 


13 


13 


45 


32 


13 


13 


44 


32 



Day. 



iS94-95. 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27. 

28 

29 

30 

31 



Oct. 


Nov. 


Aug. 


13 

13 
13 
13 

13 







42 
41 

■:o 

-10 

39 
39 

i 

38 

33 
39 
39 
40 
40 
lO 



Sept. 



32 
31 
31 



31 
31 
30 
29 



10.3 
a 9. 8 



8.8 
2.3 



I>ay. 



1-^9: 

21 

22 

23 

21 

25 

26 

27 

28 

29 

30 



a 24. 4 
22.8 

21.2 
a 20 

18. G 



a 12. 7 
all. 4 
a 10. 2 



2.3 

36 
101 



134 

a 127. 2 
a 1 20. 3 
a 113. 4 
O106.5 
99.7 



Apr. 



21..^ 
24.5 



14 
10.4 



Day. 



a 15 
21.2 



21.2 

a 18. 6 

16 

a 18. 6 
21.2 
a 22. 4 
a 23. 7 
a 2.5 



6.3 
5.0 
3.1 



a3.1 
«3. 1 
3.1 
a3.1 

a 3.1 
a 3.1 
a3. 1 



"82 

78 



G68.5 

07 
59.4 



x\pr. 



Note.— No flov/ Apr. 19 to Sept. 30. 



380 SURFACE WATER OF PACIFIC SLOPE, SOUTHER!^ CALIFORNIA. 

Daily (Hsckarge, in second-feet, of San Gabriel River near Azusa, Calif., for 1894-1918— Con, 



Day. 



Dec. 


Jan. 


Feb. 


a 0.5 




! 

1,710 


a. 5 




750 


a. 2 




275 


«.2 




243 


«.l 


5 


142 


0.2 


5 


155 


0.3 




130 


0.4 




119 


.4 




108 


a. 3 


6 


99 


a. 2 


36 


82 


.0 




73 


«1.6 




67 


a3.3 




59 


"5 




59 


6.6 




46 


a 4. 5 




59 


2.3 


46 


1,600 


C2.3 




688 


2.3 





520 


.5 




345 


.5 


46 


275 


".5 


46 


259 


a. 5 




243 


.5 




275 


.5 




292 


.5 


44 


275 


".5 




; 275 


fl.5 
0.5 






59 




12 


52 





Apr. May. 



1896-97, 

1 

2 

3..... 

4 

5 

6.. 

7... 

8........ 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21..... 

22 

23 

24 

25.... 

26 

27 

28....: 

29...... 

30.-..: 

31 



177 
142 
31.7 
14 
7.5 
8.8 



1.3 
2.0 

1.3 

rU.7 

2.0 



0.3 
".3 
0.3 
«.3 
a. 3 

0.3 
0,3 
0.3 
0.3 
a.3 

0.3 
0.3 
0.3 

16 

10 

8.7 
«7.5 



275 

275 ! 
310 j 
292 1 
292 : 

1,210 ' 

1,765 
965 
625 
470 

445 
420 

382 
345 
345 

345 
470 
.275 
345 
328 

310 

. 275 
275 
275 
310 

310 
310 
275 
310 
310 
310 



310 

275 
310 
275 

275 

310 
310 
310 
310 

328 

310 
.328 
345 

345 
345 

300 
292 
292 
275 
243 

243 
214 

185 
170 



Day. 



Feb. Mar. May. ' 



Day. 



May. 



9 


26 


10 


31 


11 


26 


12 


24 


13 


24 


14 


24 


15 


21 







31 
26 



1898.b 

16 

17.... 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



21 


31 


19 


31 


17 


11 


17 


11 



Day. 



Day. 



7-. 
8.. 
fl.. 
10.. 



a Estimated. 



' River was dry on all other days during 1898. 



Note.— No fiow during year, except Jan. 11-15. 



SAK GABRIEL PJVER BASIK. 38 1 

Daily discharge, in second-feet, of San Gabriel River near Azusa, Calif., for 1894-1918 — Con. 



Day. 


Oct 


. Jan. 


May. 


Day. 


Oct. 


Jan. 


May. 


Day. 


Oct. 


Jan. 


May. 


1899-1900. 
1. 








s 


11 

12 
13 
14 
15 

16 
17 
18 
19 
20 


1899-1900. 






9 


1899-1900. 
21 








2 














22 . . 








3 




49 
. 19 












23 








4 








13 






24 








5 




3 








25 








6 






. 










26 








7 


















27 








8. 
















28 








9 
















29 








10. 
















30 
























31 






















Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


Day. 


Jan 


. Feb. 


Mar. 


Apr. 


May. 


June. 


1901. 
1 










1,450 

410 

145 

103 

80 
70 

52 
44 
37 


70 
70 
70 
115 
2,600 

1,450 
930 

1,010 
770 
590 

450 
410 
370 
410 
540 


370 
370 
3.35 
3.35 

248 

235 
222 
200 
180 
180 

170 
152 
145 
130 
115 


75 
70 
70 
70 
70 

00 
60 
60 
56 
56 

56 
56 
52 
52 

48 


200 
103 

98 
145 

80 

75 
70 
60 
56 
52 

44 
40 
37 
37 

37 


27 
24 
24 
27 
24 

18 
13 
11 
11 
11 

10 


16 
17 
18 
19 
20 

21 
22 
23 
24 
25 

26 
27 
28 
29 
30 
31 


1901. 


3e 
2. 
\i 
If 
li 

18( 
12i 
7^ 
6( 
6C 

6C 
7( 
IOC 
8( 
7( 
7C 


) 540 
645 
645 
645 
708 

) 708 
770 
708 
645 

) 540 

450 

) 410 

370 


103 
103 
98 
98 
98 

109 
92 
92 
86 
86 

80 
80 
109 
109 
80 
80 


44 
37 
37 
30 
30 

28 
27 
16 
16 
16 

16 
16 
13 
13 

44 


34 
30 
27 
24 
24 

21 
18 
1» 
24 
103 

60 
44 
44 
37 
30 
30 




2 






3.. .. . 






4 






5 






6 






7. 






8 






9 






10 






11 






12 








•- 


13. 








14 








15 


















1 








Day. 


Oct. 


Feb. 


Mar. 


Ap. 


Day. 


Oct. 


Feb. 


Mar. 


Apr. 


1901-2. 
] 






6 

318 
77 
40 
30 

42 
18 

18 
147 

85 

52 
37 
30 
24 
IS 


13 
37 
13 
12 
11 

10 

18 
18 
16 
13 

12 
10 
10 




16 
17 
18 
19 
20 

21 
22 
23 
24 
25 

26 
27 
28 
29 
30 
31 


1901^2. 






13 
10 
8 
21 
12 

7 
4 
7 
48 
30 

24 
16 
13 
12 

18 
13 







2 















3 















4 















5 















6 


10 










12 












4 


8 














9 














10 














11 










57 
27 
12 




12 








20 
12 

8 




13 










14 










15 





























_ i 














_ 


1 








Note. — River dry on i 
21-30, 1900. 



days for which discharge is not given. No recordof daily discharge Nov. 



382 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of San Gabriel River 7iear Azusa, Calif, for 1894-1918— Con. ^ 



Day. 




Nov. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


1902-3. 
1. 






134 
125 

65 
78 
54 

50 
45 
50 
34 
30 

34 
34 
41 
34 
34 

24 
18 
13 
10 

7 

1 













10 
350 

310 
273 
310 
273 
211 

164 
144 
125 
107 
92 

78 
54 
37 
30 
24 

18 
13 
12 
144 
594 

292 
164 
164 
164 
273 
1,348 


6,844 

1,917 

1,398 

945 

868 

652 
472 
417 
370 
286 

250 
286 
220 
205 
220 

323 

1,156 
590 
590 
652 

590 
590 
590 
528 
472 

472 
444 
323 
288 
286 


286 
268 
268 
250 
250 

250 
250 
220 
190 
190 

164 
164 
139 
139 
139 

139 

118 
98 
98 
98 

98 
98 
98 
108 
83 

83 
83 
68 
55 
55 
55 


55 


2 






50 


3 .... 






50 


4 






44 








40 


G 






35 








35 


8 






35 


9. . . 






35 


10 






35 


11 


18 




27 


12 


21 


13.. . 






21 


14 






20 


1-5 






18 


15 






16 


17 ... . 






15 


18 






14 


19 






12 


20 ... 






10 


21 






10 


22 






10 


23 . . . 






6 


24 






4 


25 






4 


2G 








27 








28 




2,936 
438 
144 

144 




29 






30 






31 












Day. 


Feb. 


Mar. 


Apr. 


May. 


i Day. 


Feb. 


Mar. 


Apr. 


May. 


1904. 
1 ... 




24 
13 










72 
IS 
7 




54 
45 
41 
37 
30 

30 
27 
24 
18 
13 

3 





37 
34 
30 
30 

27 
24 
21 
IS 

15.5 

13 
10 
4 


1 
] 
1 
] 


190^ 


\. 














1,068 

164 

92 

65 

54 
54 
92 

7,8 
65 





50 
54 

37 
30 
27 
24 
18 

37 
34 
30 
30 
30 




2 












3 




8 








-1 .... 




9 . . 








5 













6 




I 








7 




2 








8......... 




^ 








9 




4 








10.. 




5 








11 




6 • . 








12 




7 








13 




8 




438 
54 




14 




9 






10 




















1 












! 













Note.— River dry on all days for which discharge is not giveu. 



^ SAN GABRIEL EIVER BASIN. 383 

Daily discharge, in secand-feet, o/SanGahriel River near Azrtsa, Calif,, for 1894-1918 — Con, 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jane. 


July. 


1905. 
1 






130 
13,0 
130 
130 
185 

165 
76 
76 
70 
70 

76 
11,058 
6,533 
2,030 
1,040 

3,145 
1,640 
1,160 
1.040 
762 

687 
616 
616 
616 
616 

616 
550 
492 
492 
441 
394 


394 
372 
372 
351 
351 

331 
331 
311 
311 

292 

292 
273 
273 
265 
237 

237 
237 
220 
202 
202 

202 
202 
170 
170 
170 

170 
140 
140 
140 
126 


HO 
351 
237 
202 
170 

170 
170 
493 
311 
273 

237 
237 
202 
202 
202 

202 
202 
202 
202 
170 

170 
170 
170 
155 
140 

140 
140 
140 
140 
126 
113 


102 
102 
102 
90 
90 

90 
80 
80 
80 
71 

71 
71 
71 
71 

63 

55 
55 
55 
48 
42 

42 
42 
42 
42 
37 

37 
37 
32 

28 
28 


24 


2 




231 
2,940 
1,68.S 

870 

351 
259 
207 
165 
147 

115 
101 

88 
88 
351 

560 
560 
390 
351 

289 

259 
207 
185 
165 
147 

147 
147 
147 


21 


3 




21 


4 ... 




21 


5 




16 


6 




16 


7 




14 


8 . . . 




12 


9 . 




12 


10 




12 


11 




37 


12 




12 


13 . 




12 


14 




10 


15 . : 




10 


16 




8.5 


17 




7 


18 




4.5 


19 . 




2.5 


20 






21 






22 


41 




23 




24 






25 






26 . . . • . . . 






27 






28 






29 






30 








31 



















Day. 


Jan. ■ Feb. 


Mar. 


Apr. 


May. 


Jime. 


July. 


Aug. 


Sept. 


1906. 
1 








1,030 
940 
940 
770 
940 

700 

585 
585 
585 
585 

5S5 
535 

485 
485 
485 

435 
390 
390 
390 
390 

350 
310 
310 
310 
310 

275 
275 
350 
275 
245 


245 
245 
245 
245 
260 

245 
245 
245 
245 
245 

245 
218 
218 
218 
218 

218 
218 
195 
195 

195 

195 
195 
195 
175 
175 

245 
218 
1,030 
535 
370 
350 


310 
310 
275 
275 
245 

245 
245 
218 
218 
195 

195 
195 
175 
175 
175 

165 
155 
155 
155 
155 

145 
145 
135 
135 
135 

135 
145 

145 
135 
126 


116 
116 
116 
107 
107 

98 
107 
98 
98 
98 

81 
81 
81 
81 
81 

81 
73 
73 
73 
73 

73 
65 
65 
■ 50 
50 

44 
44 
37 
31 
25 
21 


17 
12 
8 
8 
6 

5 

4 
4 
3 
2 

2 
2 
2 
1 
1 




2 










3 










4 




" 


52 

67 




5. 








C . 


















8 










9 










10 




4 






11... 






12 






7,950 
6,240 
1,020 
1,200 

1,590 
2, 190 
1,590 
1,590 
1,320 

970 

770 

770 

2,110 

7,080 

9,350 
6,080 
4, 250 

4,140 
1,340 
1,340 




13. 




67 
67 
67 

07 
52 
13 
10 
10 

7 
23 
10 

7 
7 

5 




J4 






15. 






IG 






17 








18 








19 


430 
102 

67 
23 
10 
4 
2 






20 






21 






22 






23.. 






24 






25 






26 






27 








28 










29 










30 










31 





















Note.— P.iver dry en all days for which discharge is not given. 



384 SUKFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 
Daily discharge, in sccond-ject, ofSanGahriel River near Azusa, CaliJ.Jor 1894-1918 — Con. 



Day. 


Oct. Nov. Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1907. 
1 


i 


225 
190 
130 
130 
12 

225 

380 

1,400 

1,760 

4,595 

2,060 

1,760 

1,400 

820 

890 

820 
820 
890 
820 
710 

610 
560 
560 
510 
610 

060 
610 
610 
710 
820 
760 


660 
660 
890 
890 
960 

960 
820 
760 
710 
710 

660 
660 
610 
610 
610 

610 

1,110 

1,110 

890 

660 

660 
1,110 
890 
710 
710 

660 
660 
660 

174 
174 
202 
690 
401 

309 
202 
174 
174 
270 

202 
202 
174 
174 
126 

126 
126 
126 
126 
126 

126 
126 
126 
105 
105 

105 
105 
105 
149 


600 
610 
610 
610 
6,730 

4,200 
3,000 
2,800 
2,800 
2,800 

2,600 
1,630 
1,510 
1,350 
1,200 

925 
820 
760 
710 

760 

2,140 
1,630 
1,070 
1,510 
1,760 

2,500 
1,740 
1,740 
1,740 
1,740 
1,560 

149 
126 
126 
105 
105 

105 
105 

87 
87 
71 

56 
56 

87 
87 

87 

174 
202 
202 
202 
202 

202 
174 
126 
126 
174 

174 
149 
126 
126 
126 
126 


1,470 
1,470 
1,470 
1,380 
1,290 

1,210 
1,130 
1,130 
1,050 
1,050 

1,050 
1,050 
1,050 
1,050 
1,050 

890 
890 
810 
730 

655 

655 
585 
585 

585 
585 

515 
415 
460 
460 
460 

126 
126 
149 
126 
105 

105 
87 
, 71 
71 
56 

56 
71 
71 
71 

87 

87 
71 
71 
71 
56 

56 
56 
71 
71 
71 

56 
71 
71 
71 
71 


415 
374 
374 
336 
336 

336 
302 
302 
302 
270 

270 
270 
255 
255- 
255 

255 
255 
255 
240 
240 

240 
240 
240 
240 
240 

240 
240 
226 
226 
226 
226 

71 
87 
87 
71 
71 

71 
71 
56 
56 
105 

56 
56 
56 
56 
43 

43 
43 
32 
32 
32 

32 
10 
10 
10 
10 

10 
10 
6 
6 
6 
10 


212 
212 
212 
212 
212 

212 
212 
212 
199 
199 

199 
199 

186 
186 
188 

186 
' 174 
174 
174 
163 

163 
153 
153 
143 
143 

143 
134 
134 
125 
125 

6 
4 
4 
4 
4 

4 

4 

, 4 

2 
2 


51 
77 
108 
125 
108 

108 
108 
108 
92 

77 

■ 77 

■ 77 
63 
51 
51 

51 
51 
41 
41 

41 

41 
32 
32 
32 
32 

32 
32 
32 
32 
32 
32 


32 
32 
24 
24 
24 

24 
24 
17 
17 
17 

17 
17 
11 

'I 

6 
6 
6 
6 
6 

3 
3 
3 
3 
3 

3 
3 
3 
3 
3 
6 

23 


6 
3 


2 


1 




3 








3 


4 








3 


5 








1 


6 








1 


7 








1 


8 










9 










10 . 








*■ 


11 










12 










13 










14 










15 










16 


.... 








17 










18 










19 










20 










21 










22 










23 










24 










25 - - 










26 










27 










28 










29 










30 










3J . 










1907-8. 
1 




3 
1 






2 










3 














4 
















5 
















6 
















7 
















8 
















9 .. 
















10 




. 












11 
















12 , 


















13 


















14 


















15 








6 
2 










16 . 


3 
6 
3 
1 

1 














17 














18 














- 


19 . 
















20 
















21 
















22 


















23 


















24 


1 
3 

1 
11 

24 
17 
6 
3 






765 
1,165 

560 
309 
234 
270 
202 
174 










25 














26 














27 














28 














29 














30 














31 








56 







Note,— River dry on all days for -which discharge is not given. 



SAN GABRIEL EIVEE BASIN. 385 

Daily discharge, in secomi-feet, of San Gabriel River near Azusa, Calif., for 1894-1918 — Con. 



Day. : Oct. 


Nov. 


Dec. 


Jau. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1909. i 

1 ■ ! 


' 





242 
242 
242 
242 
242 

242 
7,030 
3,120 
1,015 

710 

1,140 
2,090 
2,690 
1,910 
1,140 

905 
710 
620 
538 
462 

393 
333 
333 
283 
283 

283 
283 
283 

253 
200 
200 
200 
200 

153 
153 
153 
153 
153 

153 
119 
119 
119 
119 

119 
119 
119 
119 
119 

96 
96 
96 
96 
96 

96 

78 
78 


242 
242 
242 
242 
242 

242 
242 
242 
242 
242 

205 
205 
205 
205 
205 

205 
172 
172 
172 
142 

1,430 
710 
462 
393 
333 

538 
710 
620 
620 
538 
538 

78 
78 
78 
78 

78 

78 
78 
78 
78 

78 

78 
63 
63 
63 
63 

63 
63 
78 
63 
63 

63 
176 
96 
96 

78 

78 
78 
119 
119 
119 
119 


538 
620 
620 
710 
620 

538 
538 
462 
462 
462 

393 
393 
393 
333 
333 

393 
393 
333 
333 
333 

333 
333 
333 
333 
283 

283 
283 
283 
283 
242 

96 
96 
96 
96 

78 

78 
78 
78 
78 
78 

78 
78 
78 
63 
63 

63 
63 
63 
63 
63 

50 
50 
50 
50 
50 

50 
50 
50 
39 
30 


242 
242 
242 
242 
242 

205 
205 
205 
205 
205 

205 
205 
226 
225 
216 

215 
213 
210 
206 
242 

242 
242 
224 
216 
208 

200 
193 
186 
178 
170 
162 

30 
30 
30 
30 
30 

22 
22 
22 
16 
16 

16 
7 

7 
7 

7 

4.5 
4.5 
4.5 
4.5 
4.5 

4.5 
4.5 
2.5 
2.5 
2.5 

2.5 
2.5 

2.5 
1 
1 
.5 


114 
112 
108 
106 
104 

102 
100 
97 
95 
92 

90 

87 
85 
83 
80 

78 
75 
73 
71 
68 

65 
63 
61 
59 
56 

54 
52 
50 
48 
45 


S 

38 
36 
34 

32 
30 
27 
25 
23 

21 
19 
17 
15 
13 

11 
9 
7 
5 
3 

2 

2 

1.5 

1.5 

1.0 

1.0 
.5 
.5 
.0 
.0 







2 1 








3 


i 




. 




4 ! 


1 








5 ! 










6 - ' 










7 ' 










8 i : 










9 ! 










10 . . 










11 


! 








I2 !*;■■■" 












13 ' 






2 
23 
23 

10 
4 
2 
2 
2 

2,690 

4,050 

1,580 

538 

393 

283 
393 
333 
283 
242 
242 

12,400 
3,090 
1,850 
1,440 
1,070 

1,070 

1,070 

733 

733 

634 

634 
634 
541 
541 
541 

541 
455 
455 
455 
455 

455 
379 
379 
379 
312 

312 
312 
312 
253 
253 
200 






14 












15 












16 












17 












18 . 












19 












20 












21 












22 ... 












23 












24 












25 




i 






26 .. . 












27 












28 












29 












30 












31 












1909-10. 
1 












2 i . 1 . .! 










3 . ! ! . ! . 










4 i i •■ 










5 : . ' . 1 . - 










6 ' . 


1 










7 


i 










8 i. 














9 1 




1,430 
462 

142 
93 
44 
44 
33 

33 
24 
2i 
24 
24 

74 
44 
58 
44 
33 

33 
33 
24 
24 
24 
5,610 










10 












11 














12 














13 














14 














15 














16 














17 














18 














19 














20 














21 














22 














23 














24 














25 














26 














27 




10 










28 












29. 














30 














31 





























Note.— River dry on all days for which discharge is not given. 
142131°— 21— wsp 447 25 



386 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 
Daily discharge, in second-feet, of San Gabriel River near Azusa, Calif , for 1894-1 9 18— Con, 



Day. 



Apr. 



May, 



July. 



Sept. 



1911. 
1 




2 




3 . . 




4 




5 




6 




7 




8 ... 




9 


100 


10 


1,070 


11 


200 


12 


50 


1.3 . 


16 


14 


2 


15 


1,440 
455 


16 


17 


153 


18 . . . . 


78 


19 


50 


20 


39 


21 


30 


22 


22 


23 


16 


24 


11 


25 


1,070 
541 


26 


27 


312 


28 


253 


29 


5,190 
1,680 
4,150 


30 


31 



1,540 
900 
1,140 
3,180 
2,140 

1,400 

1,020 

785 

900 



500 
420 
350 
290 
235 

235 
185 
185 
140 
140 

140 
235 
235 



235 
235 

585 
2,470 
1,830 

1,540 
1,540 
3,560 
7,660 
9,100 

4,500 
3,430 
2,300 
2,060 



1,780 
1,570 
1,520 
1,470 
1,270 

1,200 

1,020 

963 

840 

850 

730 
740 
640 
650 
560 
570 



580 
680 
690 
590 
500 

510 
520 
430 
440 



370 
375 



325 
350 
375 
325 

350 
345 
345 
340 
340 

335 
335 
330 
250 

248 



246 
245 
243 
241 



234 
232 
231 

229 
227 
175 



217 
217 
217 

168 



280 
168 
168 
128 
128 

128 
128 
128 
128 
128 
128 



Note.— Daily discharge for 1910-11 determined from fairly well defined rating curves applicable as fol- 
lows: Jan. 1 , 1910, to Jan. 29, 1911; Jan. 30 to Mar. 10, 1911, and May 16 to Dec. 31, 1911; Mar. 11 to May 15, 
1911, determined by the indirect method for shifting control. Discharge estimated Sept. 29, 1911, Jan. 
14, 1912, and Mar. 4, 1912. Mar. 5 to Apr. 20, 1912, determined by the indirect method for shifting control. 
Apr. 21 to June 13, 1912, fairly well defined. No flow Oct. 1 to Jan. 8 and Aug. 1 to Sept. 28. 



Day. 


Oct. 


Jan. 


Mar. 


Apr. 


May. 


June. 


Day. 


Oct. 


Jan. 


Mar. 


Apr. 


May. 


June. 


1911-12. 
1 


7 






45 
45 
45 
45 
45 

45 
40 
40 
170 
170 

650 
415 
245 
320 
320 


217 
217 
168 
168 
128 

128 
128 
217 
168 
128 

128 
128 
128 
98 
98 


41 
41 

28 
28 
28 

28 
19 
19 
19 
12 

12 
12 
3 


1911-12. 
16 






320 
2G0 
205 
205 
165 

98 
95 
70 
70 
70 

65 
65 
65 
65 
60 
45 


320 
320 
315 

310 
440 

355 
355 
355 
355 
355 

355 
280 
280 
217 
217 


98 
76 
76 
76 
76 

76 
57 
57 
57 
57 

57 
41 
41 
41 
41 
41 




2 . ... 






17 








3 








18 








4 








19 








5 . . . 






290 

1,170 

310 

90 

50 

2,950 

750 
360 
660 
380 
390 


20. . . 








6 






21 








7 . 






22 








8 






23 








9 






24 .* 








10 






25. . 








11 






26 








12 . . .. 






27 








13 






28 








14 






29 








15...._ 






30 














31 



















Note.— Daily discharge determined from fairly well defined rating curves applicable as follows: May 16 
to Dec. 31, 1911; Apr. 21 to June 13, 1912. River dry on days for which no discharge is given. Mar. 5 to 
Apr. 20, 1912, determined by the indirect method for shifting control. 



SAN GABRIEL RIVER BASIN. 387 

Daily discharge, in second-feet, of San Gabriel River near Azusa, Calif, for 1894-1918 — Con. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


1913. 
1 






175 
130 
130 
130 
130 

130 
130 
130 
130 
112 

130 
95 
95 
82 
70 


82 
82 
70 
62 
62 

53 
53 
53 

46 
40 

40 
40 
40 
40 

40 


26 
23 

18 
18 

18 

18 
18 
18 
18 
18 

14 
10 
10 
6 
3 


1913. 

16 

17 

18 

19 

20 

21 


80 
55 
35 
25 
3 




70 
70 
70 
70 
62 

62 
62 
53 
53 
53 

40 
35 
30 
30 
152 
95 


35 
30 
40 
30 
30 

30 
30 
30 
30 
30 

32 
35 
35 
30 
30 




2 








3 








4 








5 








6 . . 








7 






22 








g 




210 

75 
54 

25 
14 

8 


23... . 








9 




24 




1,210 

1,880 

750 
425 
230 




10 




25 






11 




26 






12 




27 






13 




28 






14 




29 






15 






30. 














31 





















Note. — Daily discharge for period Feb. 24 to May 15, 1913, determined from a fairly well defined rating 
curve. Discharge Jan. 16 to 21 and Feb. 8 to 14 estimated from discharge measurements and record for 
San Gabriel River at headworks near Azusa. No flow on days for which discharge is not given. 



Day. 


Nov. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1913-14. 
1 






685 
685 
625 
625 
625 

598 
598 
545 
390 
285 

270 
240 
240 
240 
225 

215 

255 

1,720 

4,490 

11, 800 

8,480 
6,620 
4,710 
4,180 
2,950 

2,840 
2,500 
2,200 


2,100 
1,910 
1,730 
1,560 
1,480 

1,480 

1,400 

1,250 

840 

730 

620 
620 
520 
472 
425 

425 
425 
472 
425 
425 

425 
425 
425 
382 
382 

382 
382 
340 
340 
425 
382 


340 
340 
302 
302 
340 

302 
302 
302 
302 
302 

302 
302 
302 
294 
293 

292 
291 
290 

289 
287 

286 
285 
284 
283 
282 

281 
280 
279 
278 
277 


269 
261 
253 
245 
237 

229 
221 
219 
216 
213 

210 
208 
205 
202 
200 

197 
194 
190 
186 
182 

178 
174 
170 
166 
163 

159 
155 
151 
147 
143 
139 


135 
132 
129 
125 
121 

117 
113 
109 
105 
101 

98 
83 
70 
70 
70 

64 
64 
64 
64 
64 

64 

58 
58 
58 
52 

52 
52 
52 
52 
37 


34 


2 






30 


3 ... 






27 


4 






24 


5 






21 


6 






21 


7 






21 


8 






15 


9 






12 


10.. . . . . . . 






12 


11 






10 


12.. 






10 


13 






10 


14 






10 


15 




230 

850 

300 

5,050 

1,640 

750 

470 
425 
380 
380 
3,160 

9,150 

2,460 

1,880 

985 

820 

820 


10 


16 




8 


17 




8 
g 


18 




19 


40 
4 




20 


6 


21 


6 

5 


22 




23 




24 




3 


25 




2 
2 


26 




27.. . 




2 
2 
1 


28 




29 




30 




31 




1 







Note.— Channel dry Oct. 1 to Nov. 18, Nov. 21 to Jan. 14, and Aug. 1 to Sept. 30; discharge Jan. 26 esti- 
mated. Discharge Apr. 14 to June 10 determined by indirect method for shifting control; discharge 
July 1-4 interpolated. 



388 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 
Daily discharge, in second-feet, ofSanGabriel River near Aziisa, Calif., for 1894-1918— Con. 



Day. 


Dec. 


Jan. 


Feb. Mar. 


Apr. 


May. 


June. 


July. 


1914-15. 
1 






j 
65 i 400 


230 
230 
250 
250 
250 

230 
230 
212 
212 
212 

194 
194 
212 
212 
194 

178 
178 
178 
178 
178 

194 
178 

178 
178 
162 

162 
162 
194 

230 
230 


270 
270 
270 
270 
270 

270 
270 
270 
270 
270 

270 
270 
270 
270 
250 

250 
270 
250 
230 
230 

230 
212 
212 
212 
212 

212 
212 
194 
194 
194 
178 


178 
162 
147 
132 
119 

106 
106 
106 
94 
94 

82 
82 
72 
72 
72 

54 
48 
48 
48 
48 

48 
48 
42 
40 
37 

37 
32 
22 
18 
18 


18 


2 






1,000 
510 
275 
150 

120 

90 

65 

1,000 

1,110 

1,000 
900 
730 
580 
510 

450 
450 

425 
378 
450 

378 
335 
295 
400 
378 

355 
315 
275 


355 
315 
275 
275 

275 
258 
240 
240 
240 

225 
210 
256 
256 
256 

256 
274 
274 
256 
256 

259 
262 
262 
262 
262 

262 
262 
290 
270 
250 
250 


54 


3 






32 


4 






27 


5 . 






27 


6 






22 


7 






18 


8 






14 


9 






11 


10 ..., 






8 


11 






5 


12 






5 


13 






5 


14 






5 


15 






5 


16 . - 






3 


17 


50 
25 
20 
15 

25 
15 
23 
15 
15 

10 
4 
2 




■"mso" 

240 
120 


3 


18 


3 


19 


3 


20 - 


3 


21 


3 


22 


3 


23 


3 


24 


3 


25 


1.5 


26 


1.5 


27 




28 




29 . . 




30 






31 















Note. — Discharge determined from rating curves as follows: Jan. 29 to Mar. 12, fairly -well defined 
above 200 second-feet; Mar. 28 to June 15, well defined; and June 16 to July 26, well defined. Discharge 
Dec. 17-28, estimated from current meter measurements and observer's notes; Mar. 13-27, estimated from 
measurements. No flow Oct. 1 to Dec. 16, Dec. 29 to Jan. 28, and July 27 to Sept. 30. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jinie. 


Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


.Tunc. 


1910. 














1916. 














1 





1, 220 


525 


384 


172 


44 


16 


99 


495 


412 


246 


63 


4.4 


2 


19 


1,020 


495 


374 


165 


42 


17 


17,100 


495 


3S.5 


246 


63 


4.1 


3 


79 


930 


495 


365 


169 


28 


18 


22,300 


468 


385 


240 


63 


3.2 


4 


37 


845 


495 


356 


160 


16 


19 


3,900 


440 


385 


234 


74 


2.6 


5 


99 


765 


620 


346 


96 


14 


20 


2,380 


440 


765 


222 


69 


.8 


6 


62 


690 


555 


331 


96 


11 


21 


1,570 


440 


655 


216 


63 


.6 


7 


37 


690 


555 


299 


93 


10 


22 


1,330 


412 


ooo 


214 


57 


.6 


8 


22 


655 


525 


285 


89 


9.0 


23 


],170 


385 


555 


211 


.54 


.6 


9 


400 


620 


495 


285 


86 


7.5 


24 


■ ■ 848 


360 


525 


202 


57 


.4 


10 


740 


588 


495 


278 


82 


7.5 


25 


760 


335 


495 


200 


57 


.0 


11 


400 


555 


495 


285 


79 


7.0 


26 


620 


495 


290 


151 


53 


.0 


12 


110 


555 


46S 


278 


109 


7.0 


27 


7,860 


930 


440 


130 


52 


.0 


13........ 


79 


555 


468 


272 


107 


6.0 


2S 


4,240 


555 


440 


126 


49 


.0 


14 


55 


555 


440 


259 


72 


5.5 


29 


2,160 


555 


412 


122 


45 


.0 


15. 


135 


495 


440 


252 


66 


5.0 


30 

31 


2,000 
1,710 




402 
3» 


174 


44 
44 


.0 
.0 



Note.— No fiow Oct. 1 to Jan. 1, and June 25 to Sept. 30. 



SAN GABRIEL RIVER BASIN. 3^9 

Daily discharge, in second-feet, of San Gabriel River near Azusa, Calif , for 1894-1918— Con. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


1916-17. 
1 








17 
17 

48 
37 
32 

28 
26 
27 
26 
27 

26 
28 
29 
43 
50 

11 

145 
215 
190 

140 
120 
100 
80 
67 

62 
57 
55 
52 
49 
.8 


45 
43 
40 
41 
41 

40 
39 
38 
37 
34 

31 
29 
26 
25 
20 

19 

58 
63 
73 

77 

182 
590 
355 
270 
730 

490 
380 
332 


290 
252 
218 
200 
176 

165 
147 
135 
165 
165 

135 
115 
115 
110 
110 

104 
100 
100 
100 
100 

100 
96 
94 

92 
90 

90 
90 
90 
100 
110 
110 


87 
77 
71 
66 
63 

66 
58 
53 
63 

48 

44 
43 
41 
39 
104 

107 
63 
48 
39 
36 

36 
37 
39 
41 

44 

50 
53 
50 
48 
43 


41 


2 


320 
80 
30 
25 

55 
50 
35 
25 
35 

40 
30 
30 
25 
15 

10 
10 
8 
6 
3 

3 

2 
2 

1 
1 

1 






39 


3 






37 


4 






37 


5 






31 


6 - - 






30 


7 






30 


8 






31 


9 






31 


10 






31 


11 






30 


12 






27 


13 






24 


14 






24 


15 






22 


16 






20 


17 






19 


18 






35 


19 






31 


20 






24 


21 






20 


22 






18 


23 






19 


24 




. 3,900 
310 

165 
90 
56 

42 
24 
20 


22 


25 


20 


26 


17 


27 




28 






4 


29 








30 










31 






















Day. 


Feb. 


Mar. 


Apr. 


May. 


June. 


Day 


' Feb. 

1 


Mar. 


Apr. 


May. 


June. 


1918. 
1 




100 
64 
52 
44 
42 

184 
4,120 
2,030 

870 
1,810 

4,940 
4,100 
3, 520 
1,950 
1.250 


410 
388 
367 
348 
328 

310 
310 
292 
292 
292 

276 
259 
259 
229 
175 


76 
72 
70 
69 
75 

75 
66 
58 
55 
53 

51 
49 
47 
44 
43 


0.7 

'.& 
.4 
.2 

1:1 1 

.9 ! 
.4 


191S. 
16 




1,050 
S50 
720 
790 
690 

630 
500 
.=>30 
505 
480 

455 
432 
410 
388 
348 
348 


164 
142 
132 
124 
124 

115 
115 
115 
114 
112 

112 
103 
99 
89 

78 


42 
36 
20 

18 
15 

13 

11 
4.2 
2.4 
2.4 

2.1 
1.6 
2.8 
4.9 
3.7 
1.0 




2 




17 






3 




l.S . . 










19 






5 .. .. 




20 






6 




21 


200 
1,5.S0 
400 
184 
241 

292 
207 
148 








22 ... 




R 




23 




9 




24 




10 




25 




n . . 




26 




12 




27 




13 






2S 

29 




14 






15 






30 












31 












;1 

















Note. — River dry on all days for which discharge is not given. 



390 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 
Monthly discharge of San Gabriel River near Azusa, Calif., for 1896-1918. 



Discharge in second- 






feet. 




Run-off 
(total in 








acre- 


Maxi- 


Mini- 


Mean 


feet.) 


mum. 


mum. 






25 


0.0 


10.6 


652 


27.5 


3.1 


11.7 


673 


134 


2.3 


74.6 


4,590 


46 


.0 


11.1 


660 








6,580 








177 


.0 


12 


738 


16 


.0 


3 


179 


12 


.0 


2 


123 


130 


5 


40 


2,484 


1,710 


46 


329 


18, 272 


1,765 


275 


434 


26,686 


345 


141 


259 


15,417 


141 


28 


82 


5,042 


28 


.2 


5 


274 


1,765 
1,600 


.0 




69,200 


.0 


72 


4,458 


15 


.4 


8 


475 


5 


3.0 


4 


221 


31 





14 


863 


41 





11 


622 


1 





.03 


2 


1,600 


.0 


9.46 


6,920 


16 





1.2 


123 


16 





.1 


123 


13 





.42 


26 


49 





2 


123 


38 





2 


123 


49 





.37 


272 


5,168 





172 


10,235 


1,450 





111 


6,825 


2,600 


70 


630 


34, 988 


370 


80 


158 


9,715 


75 


13 


43 


2,559 


200 


18 


55 


3,382 


27 








417 


5,168 







68, 100 


70 





3 


184 


57 





3 


167 


318 


4 


38 


2,337 


37 





7 


417 


318 





4.25 


3,100 


18 


.0 


.60 


35.7 


2,936 


.0 


118 


7,260 


134 


.0 


32.7 


1,820 


1,348 


.0 


186 


11,400 


5,844 


205 


741 


44, 100 


286 


55 


148 


9,100 


55 


.0 


20.7 


1,230 


5,844 


.0 


104 


74,900 


438 


.0 


17.0 


978 


1,068 


.0 


60.2 


3,700 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



Run-off 
(total in 
acre- 
feet). 



January 

February 

March 

April 

The period. 

1896-97. 

October 

November 

December 

January 

February 

March 

April 

May 

Jxme 

The year. .. 

1897-98. 

October 

November 

December 

January 

February 

March 

The year. .. 



January 

The year . 

1899-1900. 

October 

January 

May...' 

The year . . . 

1900-1901. 
November... 

January 

February 

March 

April 

May 

June 

The year. 

1901-2. 

October 

February 

March 

April 

The year 

1902-3. 

November 

January 

February 

March 

April 

May 

June 

The year... 

1903-4. 

February 

March 



April . . 
May... 



The year. 

1904-5. 

January 

February 

March 

April 

May 

June 

July 

The year. 

1905-6. 

January 

February — 

March 

April 

May 

Jmie 

July 

August 

The year . 

1906-7. 

January 

February 

March . .". 

April 

May 

June 

July 

Aue:ust 

September..., 

The year 
1907-8. 

October 

November 

January 

February 

March 

April 

May , 

June 

July 

Augxist 

The year . 

1908-9. 

January 

February 

March ... 

April 

May 

June 

July 

The year. 

1909-10. 

November 

December 

January 

February 

March 

April 

May 

The year. 



41 
2,940 
11,058 
394 
492 
102 
37 



11,058 



430 

67 

9,350 

1,030 

1,030 

310 

116 

17 



350 



4,595 

1,110 

6,730 

1,470 

415 

212 

125 



24 
3 
1,165 
690 
202 
149 
105 



4,050 
7,030 
1,430 
710 
242 
114 
43 



7,030 



10 

5,610 

12,400 

253 

176 



0.0 

.0 



1,450 
596 



6,720 



70 
126 
113 



1.32 
398 
1,150 
249 
199 
61.9 
8.79 



172 






245 
175 
126 
21 



20.6 
14.9 
2,030 



188 
75, 
2.48 



610 
610 
415 
226 
125 
32 
3 




873 

772 
1,810 

906 

274 

178 
60.2 
11.7 



293,000 




105 
56 



2.58 
.13 
119 
184 
131 
80.0 
42.4 
1.27 
1.81 
.74 



46.4 



242 
142 
242 
162 
45 



358 
1,000 
361 
406 
214 
79.1 
14.8 



197 





200 
78 
63 
30 



.33 
270 
,060 
135 
83.3 
66.5 
11.0 



137 



81.2 
22, 100 
70, 700 
14,800 
12, 200 
3,680 
540 



124,000 



1,270 

828 

125,000 

30, 200 

10,400 

11,200 

4,650 

152 



190,000 



53,700 

42, 900 

111,000 

53,900 

16,800 

10,600 

3,700 

719 

35.7 



159 
7.7 
7,320 
10,600 
8,060 
4,760 
2,610 
75.6 
111 
45.5 



33, 700 



22,000 
55,500 
22,200 
24,200 
13, 200 
4,710 
910 



143,000 



19.6 
16,600 
65,200 
7,500 
5,120 
3,960 
676 



99,100 



SAIT GABKIEL RIVER BASIN. 391 

Monthly discharge of San Gabriel River near Azusa, Calif., for 1896-1918 — Continued. 



Month. 


Discharge in second- 
feet. 


Run-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Run-off 
(totalin 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1910-11. 

January 

February 


5,190 
3, 180 
9,100 
690 
360 
128 
28 
50 



140 
235 

248 

128 

28 

1 




546 
724 
1,910 
401 
201 
55. 1 
14.4 
2.6 


33, 600 

40, 200 

117,000 

23.900 

12:400 

3,280 

885 

155 


1914-15. 

December 

January 

February 

March 


50 
1,350 
1,110 
400 
250 
270 
178 
54 




65 
210 
162 
178 
18 



7.1 

55.2 
464 
267 
202 
243 

73.7 
9.23 


437 
3,390 
25,800 




16,400 


May 


Apri! 


12. 000 




May 


14,900 
4,390 


JuV^ 




September 


July 


568 


The year. . . 

1915-16. 

January 

February 

March 




The year. . . 


9,100 





321 


231,000 


1,3.50 





108 


77, 900 


1911-12. 
October 


7 

2,950 

650 

217 

41 




40 
41 



.2 
301 
249 
104 
9.7 


12 

18, 500 

14, 800 

6,400 

577 


22,300 
1,220 
765 
384 
172 
44 



335 
290 
122 
44 
.0 


2,330 
605 

488 
253 
82.2 
7.89 


143,000 
34,800 
29,900 


April 


Mav 


April 


15 100 




May 


5,050 






489 


•The year. . . 


2,950 





55.5 


40,300 


The year. . . 

1916-17. 
October. . .. 


22,300 


.0 


315 


228,000 




80 

1,880 

175 

82 
26 




30 
30 



6.4 
174 
90.5 

42.7 
7.6 


394 
9,660 
5,560 
2, .^40 

467 


1912-13. 
January . 


320 
3,900 
215 
730 
290 
107 
41 




17 
19 
90 
36 



27.2 
149 

62.7 
148 
131 

55.2 

23.5 


1,670 
9,160 


February 

March 


December 

January 

February 

March 


April 




May 


8,220 




8,050 




1,880 





25. S 


18, 600 


April 


3 280 




May 


1,440 


1913-14. 

November 

January 

Fobruarv 

March " 


40 

9,150 

11,800 

2,100 

340 

269 

135 

34 




215 
340 
277 
139 
37 
1 


1.5 
960 
2,140 

761 

296 

196 
81.1 
10.6 


89 
.59,000 
119, 000 
46,800 
17,600 
12. 100 
4;,<?30 
652 

260,000 


The year... 

1917-18. 

February 

March 


3,900 





49.3 


35, 700 


1, 580 

4,940 

410 

76 

1.4 


.0 
42 
78 
1.0 

.0 


116 
1,000 
209 
34.9 
.2S 


6,440 
67,600 
12, 400 

2,150 


Apri' 


April 


Mav 


May 




June 


17 '' 


July 


The year... 






4, 940 


.0 


123 


88,600 


The year. . . 


11,800 


" 


359 



NoTK.— No flow in months for which record is not given. Records therefore represent full years. 



392 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Combined daily 



'€, in second-fe£t, of San Gabriel River and canals near Aziisa, 
Calif., for 1905-6, 1909-1918. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1905-6. 
1 


30 
29 
28 
28 
28 

28 
28 
28 
27 
27 

27 
27 
28 
29 
29 

29 
30 
30 
30 
29 

29 
31 
32 
31 
30 

29 
29 

28 
29 
28 
28 


29 
29 
29 
29 
29 

32 
44 
95 
53 
42 

38 
36 
36 
34 
34 

45 
53 
43 
40 
42 

41 
39 
38 
37 
37 

37 
97 
87 
62 
53 


50 
47 
45 
44 
44 

42 
42 
41 
39 

37 

37 
37 
38 
39 
39 

39 
39 
39 
38 
46 

42 
39 
38 
37 
38 

38 
38 
38 
37 
37 
38 


37 
37 
37 
37 
37 

37 
37 
37 
37 
36 

36 
37 
37 
49 
52 

41 

41 
42 
430 
178 

143 
99 
86 
80 
68 

66 
61 
57 
58 
54 
52 

39 
39 
39 
39 
39 

39 

39 

, 39 

62 

82 

58 
58 
78 
92 

85 

72 
66 
64 
61 
60 

2,760 

4,080 

1,640 

600 

457 

345 
455 
395 
345 
304 
304 


50 
50 
49 
50 
63 

63 
56 
47 
47 

61 

72 
69 
82 
82 
82 

82 
92 

87 

84 
84 

82 
97 

84 
81 

77 

75 
73 

76 

308 
309 
309 
309 
309 

309 
7,100 
3,190 
1,080 

777 

1,210 
2,160 
2,760 
1,980 
1,210 

971 

777 
687 
605 
529 

460 
400 
400 
350 
350 

350 
350 

350 


75 
68 
65 
72 

87 

74 
70 
70 
71 

64 

56 
8,020 
6,310 
1,090 
1,280 

1,670 
2,270 
1,670 
1,670 
1,400 

1,040 

841 

835 

2,190 

7,160 

9,430 
6,160 
4,330 
4,220 
1,420 
1,420 

309 
309 
309 
309 
309 

309 
309 
309 
309 
309 

272 
272 
272 
272 
272 

272 
239 
239 
239 
209 

1,500 

777 
529 
460 
400 

605 

777 
687 
687 
605 
605 


1,110 

992 
998 

846 
844 

776 
663 
663 
662 
661 

650 
609 
563 
561 
561 

511 

462 
466 
466 
466 

426 
386 
386 
386 
386 

351 
351 
426 
351 
321 

605 

687 
687 
710 

687 

605 
605 
529 
529 
529 

460 
460 
460 
400 
400 

460 
460 
400 
400 
400 

400 
400 
400 
400 
350 

350 
350 
350 
350 
309 


321 
321 
321 
321 

336 

321 
321 
321 

321 
321 

321 
294 
294 
294 
294 

294 
294 
271 
271 
271 

271 
271 
271 
251 
251 

321 
294 
1,110 
588 
418 
410 

309 
309 
309 
309 
309 

272 
272 
272 
272 
272 

267 
267 
260 
255 
255 

255 
252 
250 
246 
242 

242 
242 
224 
216 
208 

200 
193 
186 
178 
172 
162 


364 
362 
329 
340 
321 

321 
321 
294 
294 
271 

271 
271 
251 
251 
251 

241 
231 
231 
231 
231 

221 
221 
211 
211 
231 

211 
221 
221 
211 

202 

154 
152 
173 
172 
170 

168 
166 
163 
161 
158 

156 
153 
151 
149 
146 

144 
141 
139 
137 
134 

132 
130 
129 
126 
123 

123 
121 
118 
117 
111 


192 
192 
192 
183 
183 

174 
183 
174 
174 
174 

157 
157 
157 
. 157 
157 

157 
149 
149 
149 
149 

149 
141 
141 
126 
126 

120 
120 
113 
107 
101 
97 

109 
109 
106 
105 
102 

100 
99 
96 
94 
92 

89 
87 
85 
83 
81 

79 
77 
75 
73 
70 

69 
68 
68 
68 

68 

68 
t)8 
68 
64 
62 
61 


93 

88 
84 
84 
82 

81 
80 
80 
79 

78 

78 
78 
78 

77 

77 

76 
76 
72 

68 
08 

68 
68 
68 
66 
64 

00 
60 
59 
59 
58 
57 

59 
59 
58 
56 
56 

55 
55 
55 
53 

52 

51 
50 
49 

48 
48 

48 
49 
56 
56 
53 

49 
48 
47 
45 
44 

43 
43 
43 
42 
52 
51 


54 


2 


55 


3. 


53 


4 




5 


52 


6 


50 


7 


50 


8. 


49 


9 


49 


10 


49 


11 


49 


12. . . 


49 


13 


50 


14 


50 


15. . . . 


52 


16. . 


51 


17 


50 


18 


46 


19. 


45 


20 


45 


21 


44 


22 


44 


23. 


43 


24 


43 


25 


43 


26 


43 


27 . . . 


43 


28 


43 


29 


42 


30 


42 


31 




1909. 
1 


52 


2 








48 


3 








45 


4 








45 


5 








43 


6 








42 


7 








43 


8 








42 


9 








40 


10 








40 


11 








38 


112 








39 


13 








38 


14 








37 


15 








37 


16 








36 


17 








36 


18 








36 


19 








35 


20 








35 


21 








35 


22 








35 


23 








35 


24 








36 


25 








37 


26 








38 


27 








38 


28 - - 








37 


29 








36 


30 








37 


31 











SAN GABRIrEL RIVER BASIN. 



393 



Combined daily discharge, in second-feet, of San Gabriel River and canals near Azusa, 
Calif., for 1905-6, 1909-1918— Continued, 



Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


36 


36 


54 


12,500 


322 


151 


169 


102 


67 


49 


33 


43 


35 


53 


3,140 


272 


151 


169 


102 


68 


50 


32 


50 


34 


54 


1,900 


274 


151 


170 


102 


68 


49 


31 


46 


35 


53 


1,510 


274 


151 


169 


102 


68 


48 


31 


42 


35 


57 


1,140 


274 


151 


151 


102 


68 


47 


31 


41 


35 


68 


1,140 


227 


151 


151 


94 


67 


45 


30 


41 


36 


62 


1,140 


227 


151 


151 


95 


67 


45 


29 


39 


36 


66 


804 


226 


151 


150 


94 


66 


43 


29 


37 


46 


1,500 


805 


226 


151 


151 


88 


63 


42 


29 


35 


51 


536 


706 


226 


151 


151 


88 


63 


42 


29 


35 


47 


216 


706 


227 


151 


150 


88 


61 


40 


29 


35 


46 


166 


706 


192 


136 


150 


79 


60 


41 


29 


35 


43 


118 


614 


193 


136 


150 


79 


61 


40 


29 


35 


53 


118 


613 


184 


136 


135 


79 


62 


40 


29 


35 


66 


107 


613 


185 


136 


135 


79 


66 


39 


29 


37 


55 


107 


614 


190 


136 


135 


76 


66 


39 


28 


39 


52 


98 


527 


192 


136 


135 


76 


64 


37 


28 


39 


50 


98 


527 


192 


151 


135 


76 


58 


38 


26 


37 


49 


98 


520 


192 


136 


135 


76 


56 


38 


25 


37 


47 


98 


477 


192 


136 


135 


76 


54 


36 


26 


37 


47 


148 


525 


170 


136 


122 


75 


54 


37 


26 


36 


47 


118 


452 


169 


249 


122 


74 


55 


37 


26 


35 


46 


132 


454 


169 


169 


122 


73 


56 


36 


26 


34 


45 


118 


449 


169 


169 


121 


73 


54 


35 


26 


34 


45 


107 


380 


169 


151 


122 


72 


52 


36 


25 


34 


62 


107 


386 


169 


151 


121 


72 


50 


34 


25 


34 


92 


107 


381 


151 


151 


122 


72 


49 


35 


26 


35 


65 


98 


381 


151 


192 


122 


71 


50 


35 


25 


36 


59 


98 


322 




192 


111 


70 


50 


35 


25 


37 


56 


98 


.322 




192 


102 


69 


50 


34 


25 


38 




5,680 


269 




192 




68 




35 


25 


23 


26 


33 


33 


1,610 


310 


650 


310 


200 


99 


69 


22 


26 


32 


33 


968 


310 


753 


316 


170 


72 


69 


23 


29 


31 


33 


1,210 


660 


763 


314 


170 


99 


69 


23 


31 


32 


33 


3,250 


2, .540 


664 


312 


169 


99 


69 


24 


29 


32 


33 


2,210 


1,900 


574 


310 


147 


100 


68 


23 


28 


32 


32 


1,470 


1,610 


584 


309 


146 


100 


68 


22 


29 


32 


32 


1,090 


1,610 


594 


307 


146 


91 


68 


23 


29 


32 


32 


8,56 


3,630 


504 


305 


148 


91 


66 


23 


29 


31 


137 


972 


7,720 


514 


303 


147 


91 


65 


23 


28 


32 


1,110 


753 


9,160 


434 


302 


129 


91 


65 


25 


27 


32 


261 


752 


4,560 


444 


299 


129 


91 


64 


26 


27 


32 


112 


752 


3,490 


449 


297 


128 


91 


61 


26 


39 


32 


80 


752 


2,360 


454 


245 


128 


91 


60 


26 


36 


32 


68 


752 


2,120 


464 


400 


129 


83 


58 


32 


36 


32 


1,510 


657 


1,880 


384 


288 


112 


84 


59 


32 


35 


32 


525 


572 


1,840 


394 


288 


112 


84 


58 


31 


34 


32 


222 


495 


1,630 


399 


288 


113 


84 


56 


30 


34 


33 


152 


425 


1,590 


424 


289 


113 


84 


56 


27 


34 


34 


125 


365 


1,490 


449 


240 


113 


84 


54 


26 


32 


36 


114 


310 


1,340 


398 


240 


113 


84 


54 


26 


32 


35 


104 


308 


1,270 


423 


334 


113 


84 


54 


26 


32 


33 


96 


260 


1,090 


418 


239 


113 


84 


54 


25 


32 


33 


90 


260 


1,030 


418 


240 


112 


84 


52 


24 


31 


35 


85 


215 


909 


412 


200 


99 


79 


52 


24 


31 


35 


1,140 


215 


919 


412 


200 


99 


79 


51 


25 


34 


34 


615 


215 


802 


407 


200 


99 


75 


52 


25 


34 


34 


386 


310 


811 


406 


200 


99 


75 


52 


24 


33 


33 


327 


310 


711 


402 


200 


99 


71 


51 


24 


33 


33 


5,260 
1,750 




721 


321 


200 


99 


71 


50 


27 


33 


32 




630 


320 


200 


99 


71 


49 


27 




33 


4,220 




638 




200 




71 


i6 



394 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORl^IA. 



Combined 



discharge, in second-Jeet. of San Gabriel River and canals near Azusa, 
Calif. , for 1905-6, ' 1909-1918— Contmued. 



Day. 



Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


74 


49 


44 


48 


42 


40 


120 


271 


118 


61 


39 


70 


49 


43 


53 


42 


42 


120 


275 


118 


61 


40 


66 


45 


43 


49 


41 


39 


120 


227 


105 


64 


39 


60 


45 


44 


48 


41 


56 


120 


237 


103 


69 


37 


56 


46 


45 


49 


41 


362 


120 


203 


105 


62 


36 


55 


47 


50 


49 


40 


1,240 


120 


205 


105 


58 


34 


52 


47 


56 


48 


40 


381 


115 


191 


96 


57 


34 


51 


46 


49 


48 


40 


164 


115 


274 


96 


56 


33 


52 


47 


47 


47 


41 


124 


244 


228 


96 


54 


32 


51 


49 


46 


47 


40 


3,020 


244 


204 


89 


53 


32 


51 


52 


46 


48 


40 


825 


723 


204 


89 


52 


32 


50 


51 


45 


48 


40 


435 


490 


204 


89 


50 


32 


48 


50 


45 


47 


40 


735 


320 


204 


80 


49 


32 


47 


50 


46 





40 


455 


395 


175 


77 


49 


32 


45 


49 


46 


45 


38 


465 


395 


175 


77 


48 


31 


44 


50 


46 


45 


38 


395 


395 


175 


77 


48 


32 


45 


47 


48 


45 


39 


335 


395 


153 


77 


50 


32 


45 


46 


48 


45 


38 


280 


389 


153 


77 


50 


34 


45 


47 


47 


45 


38 


280 


384 


153 


76 


48 


33 


44 


47 


47 


45 


36 


240 


458 


153 


75 


46 


32 


44 


47 


47 


44 


36 


173 


355 


153 


72 


44 


30 


44 


47 


45 


44 


38 


170 


355 


134 


72 


43 


30 


44 


47 


46 


42 


37 


145 


355 


134 


73 


44 


29 


44 


46 


45 


42 


36 


145 


355 


134 


75 


42 


28 


44 


46 


45 


42 


37 


145 


355 


134 


71 


42 


28 


45 


43 


45 


42 


37 


140 


355 


134 


69 


41 


28 


53 


44 


46 


44 


37 


140 


304 


118 


67 


41 


27 


55 


44 


47 


44 


37 


140 


317 


118 


66 


40 


27 


53 


44 


54 


42 


35 


140 


261 


118 


63 


41 


28 


53 


44 




41 




135 


268 


118 


63 


41 


28 


51 




48 


42 




120 




118 




41 


28 



Sept. 



1911-12. 

1 

2 

3 

4 

5 

6 

7 

8 , 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 , 

22 

23 

24 

25 

26 , 

27 

28 , 

29 

30 

31 



30 
31 



29 
29 



27 
28 



25 
25 



25 
24 
25 



23 
25 
25 



24 
23 



Note.— Jan. 14, 1912, no flow in canal and no record of flow past river gage, although probably there 
was some flow. Mar. 4, discharge of canal only. Probably there was some flow past river gage, but no 
record was given. 



1912-13. 

1 

2 

3. 

4 

5 

6 

S ..'."'.'.'. . 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



24 


29 


31 


29 


40 


252 


159 


103 


59 


39 


23 


25 


27 


30 


28 


40 


207 


159 


100 


59 


38 


22 


32 


28 


30 


28 


40 


207 


147 


95 


57 


35 


20 


37 


28 


30 


28 


40 


207 


139 


95 


60 


35 


18 


39 


28 


30 


27 


39 


207 


139 


95 


62 


34 


17 


35 


28 


29 


25 


40 


207 


130 


95 


58 


31 


17 


34 


28 


28 


25 


56 


207 


130 


95 


56 


31 


16 


34 


27 


28 


28 


283 


207 


130 


95 


54 


29 


16 


33 


28 


28 


30 


148 


207 


123 


95 


55 


28 


17 


32 


31 


28 


32 


127 


189 


117 


95 


54 


27 


19 


30 


35 


28 


32 


98 


207 


117 


91 


53 


25 


17 


30 


32 


27 


32 


87 


172 


117 


87 


51 


25 


17 


30 


30 


26 


32 


81 


172 


117 


87 


48 


26 


17 


29 


31 


26 


32 


72 


159 


117 


83 


46 


25 


17 


29 


30 


27 


51 


70 


147 


117 


79 


46 


26 


17 


28 


30 


27 


148 


68 


147 


112 


76 


44 


24 


17 


28 


30 


29 


123 


64 


147 


107 


75 


44 


23 


17 


27 


30 


29 


104 


64 


147 


117 


74 


42 


22 


17 


27 


30 


28 


93 


64 


147 


107 


74 


40 


22 


16 


26 


30 


29 


63 


61 


139 


107 


73 


39 


24 


15 


26 


28 


28 


51 


59 


139 


107 


73 


37 


28 


16 


26 


28 


28 


47 


68 


139 


107 


72 


34 


27 


16 


28 


29 


29 


45 


59 


130 


107 


70 


35 


25 


18 


27 


28 


30 


43 


1,290 


130 


107 


68 


36 


24 


16 


26 


28 


30 


42 


1,960 


130 


107 


67 


38 


24 


17 


26 


28 


29 


42 


827 


117 


109 


66 


42 


26 


16 


30 


28 


29 


42 


502 


112 


112 


66 


57 


29 


17 


32 


27 


29 


42 


307 


107 


112 


70 


61 


26 


16 


32 


27 


29 


42 




107 


107 


68 


50 


26 


16 


32 


30 


29 


42 




182 


107 


64 


42 


25 


20 


30 




29 


41 




172 




59 




24 


20 



20 
21 
21 
17 
16 

16 
16 
17 
16 
15 

15 
15 
14 
14 
14 

13 
13 
13 
13 
13 

13 • 
13 

14 
16 
15 

14 
14 
14 
13 
13 



SAX GABRIEL EIVER BASIN. 



395 



Combined daily discharge, in second-feet, of San Gabriel River and canals near Azusa, 
Calif, for 1905-6, 1909-1918— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1913-14. 
1 


13 
14 
14 
15 
17 

17 

16 
15 
15 
16 

16 
15 
15 
15 
15 

15 
15 
14 
14 
13 

14 
15 
14 
14 
14 

14 
14 
14 
16 
16 
16 

43 
44 
50 
51 
50 

49 
50 
49 
49 

47 

45 
46 
43 
43 
41 

40 
42 
42 
43 
43 

47 
48 
47 
44 
43 

42 
41 
40 
42 

44 
46 


17 
20 
18 
19 
19 

18 
18 
17 
17 
17 

17 
22 
69 
64 
46 

37 
33 
32 
116 
80 

66 
56 
48 
44 
42 

41 
40 
39 
38 
38 

46 
46 
43 
41 
41 

40 
40 
40 
41 

44 

45 
44 
43 
42 
42 

42 
41 
39 
38 
38 

38 
39 
39 
39 
39 

39 
39 
39 
41 

42 


36 
35 
34 
33 
33 

33 
33 
32 
31 
32 

32 
31 
31 
31 
31 

32 
31 
31 
31 
32 

32 
36 
45 
42 
41 

46 
41 
40 
39 
41 
47 

56 
58 
51 
50 
51 

55 
52 
51 
49 
54 

67 
66 
63 
58 
56 

55 
125 
95 
90 
83 

95 
85 
93 
85 
85 

80 
74 
72 
70 

70 

86 


44 
45 
44 
45 
44 

42 
41 
40 
40 
40 

39 
38 
38 
38 
290 

910 

360 

5,110 

1,700 

810 

530 
485 
440 
440 
3,190 

9,150 

2,460 

1,880 

985 

820 

820 

66 
66 
66 
70 
70 

68 
65 
64 
65 
64 

63 

62 
61 
60 
61 

60 
59 
59 
59 
59 

57 
59 
59 
58 
70 

70 
67 
70 
1,430 
320 
200 


685 
725 
677 
677 
677 

650 
650 
601 
450 
345 

330 
300 
300 
307 
280 

267 

282 

1,750 

4,540 

11,800 

8,480 
0,620 
4,710 
4,180 
2,950 

2,840 
2,500 
2,200 

145 
1,080 
590 
355 
230 

200 

170 

145 

1,080 

1,190 

1,080 
980 
810 
660 
590 

530 
530 
. 505 
458 
530 

458 
415 
375 
480 

458 

435 
395 
355 


2,100 
1,910 
1,730 
1,560 
1,480 

1,480 

1,400 

1,250 

882 

800 

693 
682 
588 
541 
495 

495 
495 
490 
425 
425 

425 
425 
425 
382 
382 

382 
382 
340 
340 
425 
382 

480 
435 
395 
355 
355 

355 
338 
320 
320 
320 

305 
290 
336 
336 
336 

336 
354 
354 
336 
336 

339 
342 
342 
352 
352 

352 
352 
380 
360 
340 
340 


340 
340 
342 
382 
420 

370 
368 
368 
370 
370 

370 
370 
370 
362 
361 

368 
359 
358 
357 
355 

354 
353 
352 
351 
350 

349 
348 
348 
346 
345 

320 
320 

340 
340 
340 

320 
320 
302 
302 
302 

284 
284 
302 
302 
284 

268 
268 
268 
268 
268 

284 
268 
268 
268 
252 

252 
252 
264 
300 
300 


339 
329 
321 
313 
317 

309 
301 
299 
296 
293 

290 

288 
285 
282 
280 

277 
274 
270 
266 
262 

258 
254 
250 
246 
243 

239 
235 
231 
227 
223 
219 

360 
360 
360 
360 
360 

360 
360 
360 
360 
360 

360 
360 
360 
360 
340 

340 
360 
340 
320 
320 

320 
302 
302 
302 
302 

302 
283 
284 
284 

284 
268 


215 
212 
209 
205 
201 

197 
193 
189 
185 
181 

178 
163 
150 
150 
150 

144 
144 
144 
144 
144 

144 
138 
138 
138 
132 

132 
132 
132 
132 
117 

268 
272 
267 
252 
239 

226 
226 
226 
214 
214 

202 
202 
192 
192 
192 

174 
168 

168 
168 
168 

168 
168 
162 
160 
157 

157 
152 
142 
138 
138 


114 
110 
107 
104 
101 

101 
101 
95 
92 
92 

90 
90 
90 
90 
90 

88 
88 
86 
86 
86 

86 
85 
84 
83 
82 

82 
82 
82 
81 
81 
81 

138 
164 
126 
137 
137 

132 
128 
124 
121 
118 

115 
115 
115 
115 
115 

113 
113 
113 
113 
113 

113 
109 
109 
103 
98 

98 
90 
90 
90 
90 
90 


80 
80 
70 
65 
65 

64 
64 
63 
63 
63 

62 
59 
59 
59 
59 

57 

57 
57 
57 

57 

57 
57 
54 
53 
52 

51 
49 
49 
50 
50 
50 

90 
90 
90 
84 
76 

76 
69 
68 
68 
66 

64 
62 
64 
63 
62 

62 
60 

58 
56 
56 

55 
53 
53 
53 

52 

52 
55 
66 
64 
62 
60 


51 


2 


53 


3 


50 


4 


50 


5 


48 


6 


48 


7 


48 


8 


47 


9 


48 


10 


47 


11 


46 


12 


46 


13 


47 


14 


47 


15 


48 


16 


46 


17 


44 


18 


45 


19 


45 


20 


45 


21 


45 


22 


45 


23 


44 


24 


43 


25 


42 


26 


41 


27.... 


42 


28 


42 


29 


41 


30 


41 


31 




1914-15. 
1 


61 


2 


58 


3 


60 


4 


58 


5 


56 


6 


55 


7 


57 


8 


58 


9 


56 


10 


56 


11 


56 


12 


56 


13 


58 


14.. 


60 


15 


59 


16 


56 


17 


55 


18... 


52 


19 


50 


20 


51 


21 


50 


22.. . 


48 


23 


48 


24 


49 


25 


55 


26.. . 


57 


27 


56 


28 


54 


29 


51 


30 


50 


31 





396 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Combined daily discharge, in second-feet, of San Gabriel River and canals near Azusa, 
Calif., for 1905-6, 1909-1918— Continned. 



Day. 



82 
410 
170 
120 
115 

145 
140 
125 
115 
125 

130 
120 
120 
115 
105 

100 
100 



180 
138 
129 
114 
110 



159 
117 
179 

142 
117 
102 



190 
159 
135 
215 

179 
17, 100 
22, 300 
3,980 
2,450 

1,650 

1,410 

1,250 

928 

840 

700 
7,940 
4,290 
2,240 
2,080 
1,790 



110 
112 
113 
127 
137 

135 
147 
235 
305 



230 
210 
190 
170 
157 



147 
145 
142 
139 

138 



1,300 

1,100 

1,010 

925 

845 

770 
770 
735 
700 



635 
635 
635 
635 
575 

575 
575 
548 
520 
520 

520 
492 
465 
440 
415 

575 

1,010 

635 

635 



135 
133 
130 
131 
131 

130 
129 
128 
127 
124 

121 
119 
116 
115 
110 

109 
148 
153 
163 
167 

272 
680 
445 
360 



470 
422 



605 
575 
575 
575 
700 

635 
635 
605 
575 
575 

575 
548 
548 
520 
520 

492 
465 
465 
465 

845 

735 
635 
635 
605 
575 

370 
520 
520 
492 

482 
473 



342 
308 
290 



255 
237 
225 
255 

255 

225 
205 
205 
200 
200 

194 
190 
190 
190 
190 

190 
186 
184 
182 
180 



180 
180 
190 
200 
200 



Apr. 



464 
454 
445 
436 
426 

411 
379 
365 
365 
358 

365 
358 
352 
339 
332 

326 
326 
320 
314 
302 

296 
294 
291 
292 
290 

241 
220 
216 

212 
264 



197 
192 
196 
191 



191 

181 
178 
183 
173 



166 
164 
189 

192 

188 
173 
164 
161 

161 
162 
164 
166 
170 



173 
170 
168 
163 



May. 



262 
255 
259 
250 



179 
176 

172 



157 
157 
151 

150 
150 
151 
151 
151 

150 
147 
144 
144 
142 

140 
129 
145 
141 
134 

130 
128 
129 
132 
130 

127 
125 
122 
118 
117 
116 



134 

132 
118 
106 
104 

101 
100 
99 



116 
115 
114 
114 
113 

112 
112 
110 
108 
106 

104 
100 
97 



July. 



Note.— Tunnel diversion for 1916-17 included in above table. 



SAN GABEIEL RIVER BASIN. 



397 



Combined daily discharge, in second-feet, of San Gabriel River and canals near Aziisa, 
Calif, for 1905-6, 1909-1918— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1917-18. 

1 

2 


24 
24 
23 
23 
22 

22 
22 
22 

22 

22 

22 
24 

27 
28 
29 

31 
32 
31 

27 
28 

27 
26 
25 
24 
24 

23 
24 
26 

27 
27 
26 


24 
24 
24 
24 
26 

37 
40 
36 
34 
33 

32 
32 
32 
32 

32 

32 
32 
32 
29 
29 

29 
30 
31 
32 
32 

32 
32 
32 
32 
32 


32 
32 
32 
34 
34 

33 
33 
32 
32 
32 

32 
32 
33 
33 
33 

32 
32 
32 
32 
32 

32 
32 
32 
33 
33 

33 
33 
33 
32 

32 
32 


32 
32 
32 
32 
32 

31 
31 
31 
32 
31 

30 
31 
33 
33 
33 

33 
33 
33 
32 
32 

32 
32 
32 
32 
38 

38 
36 
35 
35 
35 
35 


35 
34 
34 
33 
32 

32 
34 
33 
32 
32 

32 
31 
31 
32 
32 

32 
32 

61 
46 
64 

290 
1,670 
490 
274 
331 

382 
297 
238 


190 
154 
142 
134 
132 

274 
4,210 
2^120 

960 
1,900 

5,030 
4,190 
3,610 
2,040 
1,340 

1,140 
940 
810 
880 
780 

720 
590 
620 
595 
570 

545 
522 
500 
478 
438 
438 


410 
388 
382 
368 
348 

330 
332 
317 
317 
332 

321 
319 
299 
311 

275 

261 
239 
257 
249 
256 

228 
234 
234 
233 
231 

231 
222 
226 
214 
203 


203 
197 
195 
194 
177 

194 
185 
177 
174 
175 

173 
171 
175 
172 
175 

174 
175 
159 
140 
140 

138 
139 
136 
138 
140 

141 
141 
139 
141 
137 
129 


129 
128 
126 
122 
119 

117 
111 
107 
107 
105 

104 
102 
102 
98 
98 

98 
97 
96 
95 
94 

93 
92 
88 
89 

88 

87 
84 
82 
83 
81 


83 
81 
76 

78 
74 

73 
72 
71 

70 

70 
69 
68 
68 
65 

65 

62 
61 
60 
58 

57 
57 
57 
57 
58 

58 
55 
53 
52 
51 
50 


52 

52 
49 

46 

48 

48 
50 
49 
47 

48 

47 
47 
46 
48 
50 

53 
51 

49 
47 
47 

46 
44 
42 
42 
40 

39 
41 
40 
43 
41 
41 


42 
41 


3 


39 


4 


40 


5 


39 


6 


35 


7 


37 


8 


36 


9 


36 


10 


35 


11 


34 


12 . . 


34 


13 


34 


14 


. 38 


15 


39 


16 


41 


17 


40 


18 


37 


19 


37 


20 


38 


21 


35 


22 


38 


23. 


38 


24 


38 


25 


37 


26 


36 


27 


56 


28 


55 


29 


48 


30 


43 


31 









Note— Tunnel diversion included in above table. 

Note.— See i)ages 407-417 for tables of daily discharge of Southern CaUfornia Edison Co.'s canal near 
Azusa. There is no separate table for tunnel diversion, when it is reported, except for year 1917-18. 

Combined monthly discharge of San Gabriel River and canals near Azusa, Calif, for 

1894-1918. 
[Drainage area, 222 square miles.] 





Discharge in second-feet. 


Run-oflf. 


Month. 


Maximum. 


Minimum. 


Mean. 


Per 
square 
mile. 


Depth in 

inches on 

drainage 

area. 


Total in 
acre-feet. 


1894. 
May 


50 
27 
17 
27 
23 


27 
17 
9 
10 
13 


32 
23 
12 
14 
15 


0.14 
.10 
.05 
.06 
.07 


0.16 
.11 
.06 
.07 

.08 


1 968 


June 


l'369 


July 


'738 


August 


861 


September 


893 






1894-5. 
October 


16 
14 

47 
39 


13 
13 

38 
29 


14 
13 
42 
32 


.06 
.06 
.19 
.14 


.07 
.03 
.17 
.16 


861 


November 1-15 


387 


August 8-31. 


1 999 


September 


1*904 






1895-6. 
October 


32 
50 
45 
51 
61 
169 
91 
40 
27 
15 
36 
19 


27 
29 
37 
26 
36 
37 
40 
29 
13 
9 
9 
11 


29 
40 
42 
37 
41 
111 
54 
36 
19 
12 
14 
13 


.13 
.18 
.19 
.17 
.18 
.50 
.24 
.16 
.09 
.05 
.06 
.06 


.15 
.20 
.22 
.20 
.19 
,58 
.27 
.18 
.10 
.06 
.07 
.07 


1 783 


November 


2*380 


December . . . 


2' 582 


January 


2*275 


February 


2*358 


March..: :.:... .::..::::::': 


6*825 


April 


3*213 


May : 


2*214 


June 


1* 131 


July 


*738 


August 


861 


September 


774 






The year 


169 


9 


37.3 


.168 


2.29 


27 100 







398 SURFACE WATER OE PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Combined monthly discharge of San Gabriel River and canals near Azusa, Calif., for 
1894-1918— Continued. 





Discharge in second-feet. 


Run-off. 


Month. 


Maximum. 


Minimum. 


Mean. 


Per 

square 
mile. 


Depth in 

inches on 

drainage 

area. 


Total in 
acre-feet. 


1896-7. 
October 


188 
40 
37 

147 
1,713 
1,765 

370 

196 
91 
52 
34 
23 


10 
15 
17 
25 
64 
294 
201 
94 
54 
27 
22 
18 


24 
19 
22 
57.9 
344.8 
465.6 
294.4 
145.0 
67.8 
38.1 
26.4 
20.7 


an 

.09 
.10 
.260 
1.553 
2.097 
1.325 
.653 
.306 
.171 
.118 
.088 


0.13 
.10 
.12 
.29 
1.58 
2.42 
1.48 
.75 
.34 
.20 
.14 
.10 


1,476 




1 131 


December 


1,353 
3,617 
19 146 


January 


February .... 


March 


28, 623 


April 


17, 519 
8,851 
4,033 


May 




July 


2,343 
1,613 


August 


September 


1,226 






The year 


1,765 


10 


127 


.572 


7.65 


90,900 




1897-8. 
October 


1,640 
34 
34 
63 
70 
48 
37 
83 
30 
14 
9 
10 


22 

31 

28 

28 

32 

28 

25.3 

25.0 

14.5 
9.0 
5.0 
6.1 


90.5 

33.3 

30.5 

40 

40 

35 

33 

36 

19 

11 

7 

8 


.403 
.141 
.137 
.18 
.18 
.16 
.15 
.16 
.09 
.05 
.03 
.04 


.46 
.15 
.16 
.20 
.19 
.18 
.17 
.19 
.10 
.06 
.04 
.04 


5,564 


November 


1,860 
1,875 


December . 


January 


2,453 
2,241 
2,131 


February 


March 




1,950 


Mav 


2,213 
1,159 


June 


July 


672 


August 


456 


September 


467 






The year 


1,640 


5 


31.9 


.144 


1.94 


23,000 






1898-9. 
October 


10 
11 
18 
33 
28 
40 
28 
17 
22 
4 
6 
6 


7.5 

8.0 
11.7 
15 
20 
18 
16 
12 

5 

3 

4 

3 


9 
10 
14 
23 
22 
26 
21 
14 
10 
4 
5 
4 


04 
.04 
.06 
.104 
.102 
.119 
.096 
.062 
.043 
.016 
.022 
.019 


.05 
.05 
..07 
.12 
.11 
.14 
.11 
.07 
.05 
.02 
.02 
.02 


533 


November 


580 


December 


832 


January 


1,414 


February 


1,244 


March 


1,623 


April 


1,262 


May 


842 


June. . 


565 


July 


221 


August 


295 


ppptp.Tnbftr. . 


220 






The year 


40 


3 


13.5 


.061 


.83 


9,630 






1899-1900. 
October 


26 
24 
39 
89 
23 
30 
26 
86 
22 
10 
5 
6 


4 

10 
16 
22 
18 
16 
13 
16 
8 
4 
4 
3 


11 
14 
20 
32 

20 
20 
.17 
37 
15 
6 
4 
4 


.050 
.064 
.091 
.14 
.09 
.09 
.08 
.17 
.07 
.03 
.02 
.02 


.06 
.07 
.10 
.16 
.09 
.10 
.09 
.20 
.08 
.03 
.02 
.02 


683 


November 


847 


December 


1,247 


January 


1,968 


Febmary 


1,111 


March 


1,230 


April 


1,012 


May 


2,275 
893 


June 


July 


369 


August 


246 


September 


238 






The year. . . 


89 


3 


16.7 


.075 


1.02 


12,100 






1900-1901. 
October 


6 


4 


5 
186 
40 
169 
680 
221 
110 
121 
63 
30 
20 
17 


.02 
.84 
.18 
.76 
3.06 
1.00 
.50 
.55 
.28 
.14 
.09 
.08 


.02 
.93 
.11 
.87 
3.19 
1.15 
.50 
.63 
.31 
.16 
.10 
.09 


307 


November . . . 


11,068 
1,269 


December 








1,450 
2,605 
440 
130 
272 
93 
41 
27 
20 


28 
137 
135 
95 
83 
41 
24 
15 
15 


10,391 
37, 765 


February 


March 


13,589 


April 


6,545 
7,440 
3,749 
1,845 
1,240 


May 


June . . . 


July 


August 


September . . 


1,012 






The year 


2,605 


4 


138 


.624 


8.12 


96,200 







SAInT GABRIEL RIVER BASIN. 



399 



Combined monthly discharge of San Gabriel River and canals near Azusa, Calif., for 
1894-1918— Continued . 





Discharge in second-feet. 


Run-off. 


Month. 


Maximum. 


Minimum. 


Mean. 


Per 
square 
mile. 


Depth in 

inches on 

drainage 

area. 


Total in 
acre-feet. 


1901-2. 
October 


122 
50 
30 
51 
120 
378 
99 
48 
30 
17 
8 
6 



29 
26 
24 
38 
63 
48 
30 
14 
8 
6 
4 


24 
32 
27 
28 
37 
99 
66 
39 
20 
11 
7 
5 


0.11 
.14 
.12 
.13 
.17 
.45 
.30 
.18 
.09 
.05 
.03 
.02 


0.13 
.16 
.14 
.15 
.18 
52 
.33 
.21 
.10 
.06 
.03 
.02 


1,476 


November 


1,904 


December 


1,660 




1,722 
2,055 
6,088 


February 


March 


April 


3,928 


May 


2,398 


Jmie 


1,190 


July 


676 


August 


430 


September 


298 






The year 


378 





32.9 


.149 


2.03 


23,800 






1902-3. 
October 


10 

80 

68 

2,999 

203 

1,417 

5,892 

355 

125 

58 

35 

34 


6 
8 

16 
22 
61 
57 
267 
125 
62 
35 
24 
21 


7 
19 
32 
148 
102 
257 
792 
217 
95 
43 
29 
25 


.03 
.09 
.14 
.67 
.46 
1.16 
3.57 
.98 
.43 
.19 
.13 
.11 


.03 
.10 
.16 
.77 
.48 
1.34 
3.98 
1.13 
.48 
.22 
.15 
.12 


430 


November 


1,131 


December 


1 968 


January 


9,100 


February 


5,665 


March 


15,802 


April 


47,127 


May. : 


13 343 


June.. 


5*653 


July 


2*644 


August 


1 783 


September 


1,'488 






The year.. 


5,892 


6 


147 


.663 


8.96 


106 000 






1903-4. 
October 


32 

26 

26 

28.2 
438 
1,130 
120 
104 

38 

18 

29 

13.5 


20 

22 

22 

23 

23 

35 

57 

37 

17.5 

11 
9.5 
7.5 


24 

24 
24 

24.4 
47.7 
110.8 
89.7 
66.5 
25.5 
14.0 
12.9 
10.8 


.11 
.11 
.11 
.11 
.21 
.50 
.40 
.30 
.11 
.06 
.06 
.05 


.13 
.12 
.13 
.13 
.23 
.58 
.45 
.35 
.12 
.07 
.07 
.06 


1,476 
1 428 


November 


December 


l',476 


January 


1 500 


February 


2*744 


March 


6*813 
5,337 
4 089 


April 


May 


June . 


1*517 


July 


'861 


August 


793 


September 


643 






The year 


1,130 


7.5 


39.5 


.178 


2.44 


28 700 






1904-5. 
October 


15.5 

14.5 

48 
108 
3,010 
11,130 
474 
540 
182 
109 

55 

35 


9 

11 

14.7 

18.5 

34 
142 
206 
193 

63 

56 

33 

28 


12 
12.8 
16.9 
36.6 

466 
1,222 

329 

278 

139 
83.0 
42.8 
31.4 


.05 
.06 
.08 
.165 
2.10 
5.50 
1.48 
1.25 
.626 
.374 
.193 
.141 


.06 
.07 
.09 
.19 
2.19 
6.34 
1.65 
1.44 
.70 
.43 
.22 
.16 


738 


November 


762 


December 


1 039 


January 


2*251 
25,880 
75,140 
19,580 
17,090 
8,271 
5,103 
2,631 
1 869 


February 


March . . 


April 


May 


June 


July 


August 


September 






The year 


11,130 


9 


222 


1.00 

.130 
.201 
.181 
.310 
.321 
9.46 
2.62 
1.54 
1.18 
.685 
.329 
.215 


13.54 

.15 
.22 
.21 
.36 
.33 
10.91 
2.92 
1.78 
1.32 
.79 
.38 
.24 


160 000 






1905-6. 
October 


32 

97 

50 

430 

97 

9,430 

1,110 

1,110 

364 

192 

93 

55 


27 
29 
37 
36 
47 
56 
321 
251 
202 
97 
57 
42 


28.8 
44.7 
40.1 
68.9 
71.3 
2,100 

582 

341 

261 

152 
73.0 
47.7 


1,770 
2,660 
2,470 
4,240 
3,960 
129,000 
34,600 
21,000 
15,500 
9,350 
4,490 
2,840 


November 


December . . . 


January 


February 


March 


April 


May 


June 


July 


August 


September 




The year 


9,430 


27 


321 


1.45 


19.61 


232,000 





400 SURFACE WATER OP PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Combined monthly discharge of San Gabriel River and canals near Azusa, Calif., for 
1894-1918— Continued. 





Discharge in second-feet. 


Run-ofl. 


Montli. 


Maximum. 


Minimum. 


Mean. 


Per 

square 
mile. 


Depth in 

inches on 

drainage 

area. 


Total in 
acre-feet. 


1906-7. 
October 


42 

47 

1,600 

4,670 

1,190 

6,810 

1,550 

491 

288 

201 

108 

82 


38 
37 
45 
88 
686 
686 
491 
302 
201 
108 
79 
50 


39.8 
40.4 

188 

949 

848 
1,880 

982 

350 

254 

136 
87.7 
60.2 


0.179 
.182 
.847 
4.27 
3.82 
8.47 
4.42 
1.58 
1.14 
.613 
.395 
.271 


0.21 
.20 
.98 
4.92 
3.98 
9.76 
4.93 
1.82 
1.27 
.71 
.46 
.30 


2 450 


November 


2*400 




ii'eoo 




58 400 




47' 100 


March. . 


116*000 


April 


58*400 


May 


21*500 




15 100 


July 


8*360 




5*390 




3^580 




The year 


6,810 


37 


485 


2.18 


29.54 


350 000 






1907-8. 


100 
79 
76 
1,240 
766 
278 
225 
163 
82 
89 
60 
62 


50 
55 
53 
48 
181 
132 
132 
82 
49 
34 
29 
26 


66.5 
63.9 
58.6 

180 

260 

207 

156 

117 
70.4 
41.6 
36.0 
30.6 


.300 
.288 
.264 
.811. 
1.17 
.932 
.703 
.527 
.317 
.187 
.162 
.138 


.35 
.32 
.30 
.94 
1.26 
1.07 
.78 
.61 
.35 
.22 
.19 
.15 


4 090 




3*800 


December 


3,600 
11 100 






15! 000 


March 


12 700 
9 280 


April 


May . 


7! 190 




4 190 


July. .. 


2,560 




2,210 
1,820 








The vear 


1,240 


26 


107 


.482 


6.54 


77 500 






1908-9. 
October 


40 

36 

80 

4,080 

7,100 

1,500 

710 

309 

173 

109 

59 

52 


29 
31 
34 
39 
308 
209 
309 
162 
111 
61 
42 
35 


33.6 
32.9 
46.7 

414 
1,070 

428 

471 

248 

144 
82.0 
50. 7 
39.0 


.151 
.148 
.210 
1.86 
4.82 
1.93 
2.12 
1.12 
.649 
.369 
.228 
.176 


.17 
.17 
.24 
2.14 
5.02 
2.22 
2.36 
1.29 
.72 
.43 
.26 
.20 


2 070 


November 


1*960 




2,870 




25,500 




59,400 


March 


26 300 


April 


28,000 


Mav 


15,200 
8,570 


June 


July 


5,040 




3 120 




2,320 








7,100 


29 


255 


1.15 


15, 22 


180,000 






1909-10. 
October 


50 
92 
5,690 
12,500 
322 
249 
170 
102 
68 
50 
33 
25 


34 
34 
53 
269 
151 
136 
102 
68 
49 
34 
25 
21 


37.5 
48.4 

340 
1,130 

207 

156 

139 
82.1 
59.8 
39.9 
27.8 
23.1 


.169 
.218 
1.53 
5.09 
.932 
.703 
.626 
.370 
.269 
.ISO 
.125 
.104 


.19 

.24 
1.76 
5.87 
.97 
.81 
.70 
.43 
.30 
.21 
.14 
.12 


2,310 




2,880 




20,900 




69, 500 




11,500 


March 


9,590 


April 


8,270 


May 


5,050 




3,560 


July 


2,450 




1,710 


September 


1*370 






The year 


12,500 


21 


191 


.860 


11.74 


139,000 




1910-11. 


32 
39 
36 

5,260 
3,250 
9,160 
763 
400 
200 
100 
69 
113 


22 
26 
31 
32 
215 
310 
320 
200 
99 
71 
46 
40 


25.4 
31.4 
32.8 

605 

797 
1,980 

474 

270 

126 
85.1 
58.7 
47.6 


.114 
.141 
.148 
2.73 
3.59 
8.92 
2.14 
1.22 
.568 
.383 
.264 
.214 


.13 
.16 
.17 
3.15 
3.74 
10.28 
2.39 
1.41 
.63 
.44 
.30 
.24 


1,560 


November 


1,870 


December 


2,020 




37,200 
44,300 
122,000 




March 


April 


28,200 


May 


16,600 


June 


7,500 


July . . . 


5,230 


August 


3,610 


September 


2,830 






The year 


9,160 


22 


378 


1.70 


23.04 


273, 000 







SAN GABKIEL EIVER BASIN. 



401 



Combined montJihj discharge of San Gabriel River and canals near Azusa, Calif., for 
1894-1918— Contmued . 



Discharge in second-feet. 



Per 
square 
mile. 



Depth in 
inches on 
drainage 



1911-12. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year 

1912-13. 

October.' 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year , 

1913-14. 

October.... 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year 

1914-15. 

October '.. 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year . .. 

1915-16. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July , 

August 

September 

The year , 



52 
56 
53 
42 
3,020 
723 
275 
118 
69 
40 
31 



39 
35 
31 
148 
1,960 
252 



17 

116 

47 

9,150 

11,800 

2, 100 

420 

339 

215 

114 

80 

53 



125 
1,430 
1,190 
480 
340 
360 
272 
164 
90 



48 
61 
76 
22,300 
1,300 
845 
464 
262 
134 
90 
62 
54 



22, 300 



43 
43 

35 
39 
115 
118 
63 
40 
27 



51.0 
47.0 
46.7 
44.1 
38.8 

371 

302 

177 



31.9 
26.0 



0.230 
.212 
.210 
.199 
.175 
1.67 
1,36 
.797 
.378 
.224 
.144 
.117 



106 



.477 



24 
27 
26 
25 
39 
107 
107 
59 
34 
22 



29.8 
29.0 
28.6 
47.4 

237 

166 

120 
80.8 
48.6 
27.5 
17.4 
15.0 



.134 
.131 
.129 
.214 
1.07 
.748 
.541 
.364 
.219 
.124 
.078 
.068 



.313 



13 
17 
31 
38 
267 
340 
340 
219 
117 
81 
49 
41 



14.8 
38.3 
35.3 

999 
>,170 

781 

360 

275 

161 
90.6 
59.1 
45.8 



.067 
.173 
.159 
4.50 
9.78 
3.52 
1.62 
1.24 
.725 
.408 
.266 
.206 



40 
38 
49 
57 
145 
290 
252 
268 
138 
90 
52 



45.0 
41.0 
69.7 

120 

544 

350 

290 

332 

192 

114 
64.8 
54.9 



.203 
.185 
.114 
.541 
2.45 
1.58 
1.31 
1.50 
.865 
.514 
.292 
.247 



42 
48 
63 
415 
370 
212 
134 
90 
61 



45.0 
50.6 
58.2 
!,410 

685 

566 

335 

169 
98.0 
77.5 
58.0 
47.2 



.203 
.228 
.262 
10.90 
3.09 
2.55 
1.51 
.761 
.441 
.349 
.261 
.213 



384 



0.27 
.24 
.24 
.23 
.19 
1.92 
1.52 
.92 
.42 
.26 
.17 
.13 



6.51 



.15 
.15 
.15 
.25 
1.11 
.86 
.60 
.42 
.24 
.14 



.19 

.18 
5.19 
10.18 
4.06 
1.81 
1.43 
.81 
.47 
.31 
.23 



24.94 



.13 

.62 
2.55 
1.82 
1.46 
1.73 

.97 



.23 
.25 
.30 
12.57 
3.33 
2.94 
1.68 



.40 
.30 

.24 



142131°— 21^ wsp 447- 



-26 



402 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. i 

Combined monthly discharge of San Gabriel River and canals near Azusa, Calif., for 
1894-1918— Contmued. 



Discharge in second-feet. 



Depth in 
inches on 
drainage 



Total in 
acre-feet. 



1916-17, 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year 

1917-18. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year 



62 
107 
109 
180 
161 
116 
63 
42 
27 
23 



221 

176 

140 
88.6 
51.0 
35.7 
25.4 



0.514 
.313 



1.07 
.995 
.793 
.631 
.399 
.230 
.161 
.114 



0.59 
.35 

1.15 
.78 

1.11 

1.15 
.88 
.73 
.45 
.27 
.19 
.13 



3,990 



32 
40 
34 
38 
1,670 
5,030 
410 
203 
129 
83 
53 
56 



22 
24 
32 
30 
31 
132 
203 
129 
81 
50 



25.3 
31.0 
32.5 
32.9 

168 
1,190 

286 

163 

101 
64.5 
46.2 
39.2 



.114 
.140 
.146 
.148 
.757 
5.36 
1.29 
.734 
.455 
.291 
.208 
.177 



.13 
.16 
.17 
.17 
.79 
6.18 
1.44 
.85 
.51 
.34 
.24 
.20 



5,030 



183 



.824 



7,010 
4,130 
13, 600 
9,280 
13, 200 
13,600 
10, 500 
8,610 
5,270 
3,140 
2,200 
1,510 



92, 000 



1,560 
1,840 
2,000 
2,020 
9,330 
73,200 
17,000 
10,000 
6,010 
3,970 
2,840 
2,330 



Note.— Seepages 417-419 for monthly and yearly discharge of Southern CaUfornia Edison Co.'s canal near 
Azusa. There is no separate table of tunnel diversion, when discharge is reported, except for years 1917-8. 



FISH FORK OF SAN GABRIEL RIVER NEAR AZUSA, CALIF. 

Location. — ^About 300 feet above junction with San Gabriel River in NE. I sec. 
32, T. 3 N., R. 8 W., in the Angeles National Forest, and about 15J miles north- 
east of Azusa. 

Records available. — 1900, 1901, 1910, and 1912 (low-water record only). 

Elevation. — About 3,300 feet above sea level. 

Drainage area. — 10 square miles. 

Discharge. — Computed from gage-height record, giving head on weir. 

Cooperation. — Record furnished by Pacific Light & Power Corporation, through 
G. 0. Newman, engineer. 



SAI^ GABRIEL RIVER BASIN. 



403 



Low-water record of daily discharge, in second-feet, of Fish Fork of San Gabriel River near 
Azusa, Calif., for 1900, 1901, 1910, and 1912. 



Day. 


1900 


1901 


1910 


1912 


July. 


Aug. 


Sept. 


Oct. 


Aug. 


Sept. 


July. 


Aug. 


Sept. 


July. 


Aug. 


Sept. 


1 


1.4 
1.7 
1.7 
1.7 
1.3 

1.2 
1.2 
1.2 
1.1 
1.0 

.95 
1.0 
1.0 
1.0 
1.0 

1.2 
.95 
1.0 
1.0 
1.0 

1.1 
1.1 
1.1 
1.1 
1.0 

.9 
.9 
.9 
.9 

.85 






0.95 
.90 
.95 
.96 
.93 

.93 
.93 
.93 
.90 
.89 

.95 
.95 
1.01 








4.0 
3.9 
3.8 
3.7 
3.6 

3.6 
3.6 
3.5 
3.5 
3.4 

3.5 
3.4 
3.3 
3.3 
3.2 

3.2 
3.1 
3.1 
3.1 
3.1 

3.1 

""3."6' 
3.0 

2.9 

2.8 
2.8 
2.8 
2.7 

2.8 


2.8 
2.8 
2.9 
2.9 

2.7 

2.7 
2.7 
2.7 
2.6 
2.6 

2.7 
2.5 
2.6 
2.7 
2.9 

2.8 
2.7 
2.6 
2.5 
2.5 

2.4 
2.4 
2.4 
2.4 
2.4 

2.4 
2.3 
2.3 
2.3 
2.4 




6.8 


2.7 


2 






4.9 
4.7 
4.7 
4.5 

4.4 
4.1 
3.9 
3.8 
3.4 

3.3 
3.8 
3.6 
3.7 

3.4 

3.4 
4.0 
3.6 
3.4 
3.3 

3.2 
3.2 
2.9 

2.7 
3.0 

2.8 
2.8 








3 


1.0 
.95 
1.0 

1.1 
1.1 

.9 

.95 
1.0 

1.0 
1.1 
1.1 
1.0 
1.0 

.9 
.9 

.85 
.85 
.95 

.9 
.9 
.9 
.9 
.9 

.9 

.9 

.9 
1.0 

.95 
1.1 


"i.'s"' 
.9 

.95 
1.1 
1.1 
1.1 
1.1 

.9 
.9 
.9 

.85 
.85 

.85 

.8 
1.0 
1.0 
1.0 

1.0 

.8 

.8 
.8 

.85 


2.3 
2.2 
2.2 

2.2 
2.2 
2.0 
2.1 
2.1 

2.1 
2.1 
1.9 
1.9 
1.9 

2.0 
2.0 
2.1 
2.0 
2.0 

2.1 
2.1 

2.4 
2.3 
2.2 

2.1 
2.1 
2.0 
2.1 
2.3 


4.4 

'"i'.o 

5.1 
5.0 
5.0 
5.2 
5.1 

5.1 
5.1 
5.1 

4.8 
6.2 

5.3 
4.9 

4.6 
4.6 
4.6 

4.5 

4.5 
4.5 
4.2 
4.3 
4.1 








4 








5 








6 






2.7 


7 




4.1 




8 




9 . 








10 






2.6 


11 


'"5.9 


3.6 




12 




13 






14 








15 








16 








17 




3.7 


2.6 


18. 




19 


6.0 






20 






21.. 




3.2 




22:::::::::::::: 


2.3 


23 


5.1 






24 






25 








26 




2.9 


2.2 


27 




28 








29 




2.7 

2.6 
2.8 








30 


4.3 






31 





















IRON FORK OF SAN GABRIEL RIVER NEAR AZUSA, CALIF. 

Location. — About 300 feet above junction with San Gabriel River, in the Angeles 
National Forest, in SE. 1 SW. i sec. 32, T. 3 N., R. 8 W., and about 14^ miles 
northeast of Azusa. 

Records available. — 1900, 1901, 1910, and 1912 (low-water record only). 

Elevation. — ^About 3,000 feet above sea level. 

Drainage area. — 13.7 square miles. 

Discharge. — Computed from gage-height record, giving head on weir. 

Cooperation. — Record furnished by Pacific Light & Power Corporation, through 
G. 0. Newman, engineer. 



404 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Low-water record of daily discharge, in second-feet, of Iron Fork of San Gabriel River near 
Azusa, Calif , for 1900, 1901, 1910, and 1912. 



Day. 


1900 


1901 


1910 


1912 


July. 


Aug. 


Sept. 


Oct. 


Aug. 


Sept. 


Ju]y. 


Aug. 


Sept. 


July. 


Aug. 


Sept. 


1 


2.0 
2.0 
2.1 
2.1 
1.9 

1.9 
1.8 
1.7 
1.6 
1.6 

1.5 
1.4 
1.4 
1.4 
1.4 

1.4 
1.4 
1.4 
1.4 
1.4 

1.3 
1.3 
1.4 
1.2 
1.3 

1.2 
1.3 
1.2 
1.1 
1.1 
1.2 






1.0 
1.1 
1.0 
1.1 
1.2 

1.1 
1.1 
1.2 
1.1 
1.1 

1.2 
1.2 
1.2 
1.3 








5.0 
4.9 

4.8 
4.7 
4.6 

4.6 
4.5 
4.5 
4.5 
4.4 

4.5 
4.5 
4.6 
4.5 
4.4 

4.4 
4.3 
4.3 
4.3 
4.3 

4.3 
4.2 
4.0 
4.0 
3.9 

4.0 
4.0 
4.0 
3.9 

3.8 
3.8 


3.8 
3.9 
4.0 
4.0 
3.6 

3.6 
3.5 
3.4 
3.4 
3.4 

3.4 
3.5 
3.6 
3.6 
3.7 

3.6 
3.6 
3.4 
3.4 
3.4 

3.3 
3.3 
3.3 
3.3 
3.3 

3.2 
3.2 
3.2 
3.2 
3.3 




6.3 


4.2 


2 


1.1 
1.1 
1.1 
1.2 

1.2 




5.1 
5.4 
5.^ 
5.8 

5.4 
4.9 

4.8 
4.8 
4.9 

4.6 
4.5 
4.1 

4.2 
4.2 

4.4 
4.6 
4.7 
4.4 
4.2 

4.2 

4.2 
4.2 
3.9 
3.8 

3.7 
3.9 
3.4 

3.8 

3.8 
3.8 


4.5 
3.3 
3.2 
3.2 

3.0 
3.2 
3.3 
3.3 
3.3 

3.3 
3.3 
3.2 
3.2 
3.1 

3.1 
3.0 
3.0 
3.0 
3.1 

3.2 
3.3 
3.9 
3.9 
3.7 

3.2 
3.2 
3.1 
3.1 

3.2 


4.6 
4.9 

5.8 
5.7 
5.7 
5.7 
5.7 

5.6 
5.5 
5.5 
5.5 
5.6 

5.4 
5.4 
5.4 
5.3 
5.3 

5.3 




3 








4 








5 








6 






4.3 


7 





5.6 




8 


1.2 
1.1 
1.2 

1.2 
1.1 
1.1 
1.2 
1.2 

\.\ 

1.1 
1.1 
1.2 

1.1 
1.1 
1.0 
1.0 

.95 

.95 
.95 

1.0 

1.1 

1.1 

1.1 


"i.'i" 
1.1 

1.1 
1.1 
1.1 
1.1 

1.2 

1.1 
1.2 
1.1 
1.1 
1.0 

.9 
.85 
1.1 
1.3 
1.2 

1.2 
1.0 
1.0 
1.0 
1.2 




9 . . 








10 






4.2 


11 


■■"7."3' 


5.4 




12 




13 






14 








15 








16 






3.7 


17 




5.2 




18 




19 


7.3 






20 . 






21 




4.8 




22 


3.5 


23 








21 








25 


6.7 


4.6 




26 


3.4 


27 








28 








29. 








30 


6.8 






31 
















! 







COLDWATER CREEK ABOVE MOUTH, CAUF. 

Daily discharge, in secondfeet, over iveir on Coldwater Creeh, Calif., 2\ miles from mouthy 

for 1900. 



Day. 


July. 


Aug. 


Sept. 


1 
Oct. 


Day. 


July. 


Aug. 


Sept. 


Oct. 


1 




0.43 


0.52 
.58 
.62 
.57 
.55 

.56 
.51 
.51 
.56 
.50 

.55 
.52 


"'o.m 

.62 
.61 
.63 

.61 

.58 
.58 
.58 

.55 

.60 
.60 
.64 


21... 




0.56 
.51 
.49 
.45 
.44 

.45 
.42 
.42 
.41 
.40 
.56 






2 




22 








3 




.49 
.46 
.54 

.53 
.50 
.50 
.53 

.56 

.53 
.51 
.46 
.47 
.45 

.45 
.47 

.47 
.52 
..55 


23 








4 




24 








5 




25 








6 




26 








7 




27 


.37 
.49 
.50 
.47 
.46 






8 




28 .... 






9 




29 






10 




30 










31 






11 


Mean 






12 




.46 


.48 


0.55 


0.60 


13 






14 






15 










16 










17 










18 










19 










20 

















SAN GABRIEL RIVER BASIIST. 405 

WEST FORK OF SAN GABBIEL RIVER ABOVE NORTH FORE, CALIF. 

Daily discharge, in second-feet, over tveir on West Fork of San Gabriel River, Calif, above 
North Fori, for 1900. 



Day. 


July. 


Aug. 


Sept. 


Oct. 


Day. 


July. 


Aug. 


Sept. 


Oct. 


1 


0.55 
.62 
.68 
.62 
.53 

.55 
.55 
.55 
.44 
.34 

.29 
.26 
.24 
.20 
.13 

.12 
.16 
.16 
.12 
.12 


0.05 
.02 

"".'os' 

.07 

.08 
.08 

.12 
.10 
.12 
.10 
.12 


0.12 
.12 
.12 
.12 

.08 

.ll" 
.16 
.12 
.12 
.16 

.16 
.12 
.12 
.16 

.16 

.16 
.16 
.11 
.12 
.12 


0.16 
.16 
.16 
.16 
.15 

.20 
.20 
.16 
.16 
.13 

.20 
.20 
.20 


21 


0.07 
.12 


0.12 
.10 
.07 

.08 
.08 


0.16 
.16 




2 


22 




3 


23 




4 


24 








5 


25 


.08 


.12 

.20 
.16 
.16 
.13 
.14 




6 


26 




7 


27 




.08 
.08 
.10 
.12 
.10 




8 


28 


.05 
.08 
.05 
.05 




9 


29 




10 


30 






31 






Mean 






12 


.29 


.09 


.14 


0.17 


13 




14 




15 




16 




17 




18 




19 




20 









WEST AND NORTH BRAN CHES OF NORTH FORK OF SAN GABRIEL RIVER AT WEIR, 

CALIF. 

The following tables are prepared from measurements made three 
times daily for the San Gabriel Electric Co. and filed in a suit before 
the United States land office at Los Angeles, Calif. The mean of the 
three daily measurements is here given. 

Daily discharge, in second-feet, over weir on the west branch of North Fork of San Gabriel 
River, Calif , for 1900. 



Day. 


July. 


Aug. 


Sept. 


Oct. 


Day. 


July. 


Aug. 


Sept. 


Oct. 


1 




0.23 
.23 
.23 
.26 
.17 

.23 
.23 
.22 
.12 
.12 

.19 
.19 
.19 
.19 
.15 

.26 
.23 
.23 
.23 
.22 


0.19 
.19 
.17 
.22 
.12 

.12 
.22 
.18 
.20 
.22 

.22 
.22 
.22 
.18 
.18 

.12 
.12 
.25 
.15 
.12 


0.20 
.12 
.18 

.18 
.23 

.23 
.19 
.19 
.19 
.19 

.19 
.19 
.22 


21 


0.39 
.24 
.26 
.26 
.28 

.37 
.37 
.26 
.23 
.23 
.23 


0.22 
.22 
.22 
.22 
.22 

.23 
.18 
.18 
.25 
.20 


0.15 
.12 
.15 
.22 
.27 

.26 
.26 
.22 
.20 
.17 




2.... 


0.28 
.27 
.27 
.26 

.28 
.24 
.23 
.25 
.23 

.25 
.25 
.22 
.27 
.27 

.31 
.31 
.27 
,31 
.39 


22 




3 


23 




4 


24 




5 


25 




6 


26 




7 


27 




8 


28.. . . 




9 


29 




10 


30 






31 




11 


Mean 








12 


.28 


.21 


-19 


0.19 


13 


14 




15. . . 




16 




17 




18 




19 




20 









406 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Daily discharge, in second-feet, over weir on the north branch of North Fork of San Gabriel 
River, Calif, for 1900. 



Day. 


July. 


Aug. 


Sept. 


Oct. 


Day. 


July. 


Aug. 


Sept. 


Oct. 


1 




0.89 
.89 
.89 
.95 
.95 

.74 
.74 
.74 

.77 
.77 

.74 
.74 
.77 
.68 
.74 

.62 
.65 
.65 
.62 
.60 


0.62 
.62 
.62 
.62 
.60 

.65 
.61 
.61 
.83 
.61 

.61 
.63 
.61 
.63 
.63 

.59 
.59 
.59 
.59 
.59 


0.65 

.72 
.68 
.68 
.68 

.68 
.56 
.56 
.56 

.57 

.59 
.59 
.59 


21 


0.97 
.96 

1.07 
.95 
.95 

.96 
.68 
.68 
.89 
.86 
.68 


0.60 

'"".'55' 
.52 

.52 

.56 
.57 
.57 
.57 
.74 


0.53 
.53 
.53 

.81 
.68 

.65 
.65 
.68 
.68 
.68 






0.92 
.92 
.92 

.89 

.89 
.89 
.82 
.80 
.70 

.81 
.83 
.86 
.95 
.97 

.97 
.97 
.97 
.97 
.97 


22 




3 


23 




4 


24 




5 


25 




6 


26 




7 


27 




8 


28 




9 


29 




10 


30 






31 




11 


Mean 








12 


.89 


.70 


.63 


0.62 


13 




14 




15 




16 




17 




18 




19... 




20 









SOUTHERN CALIFORNIA EDISON CO.'S CANAL 1 NEAR AZTJSA, CALIF. 

LOCATION. — At Southern California Edison Co.'s power house, about 5 miles south- 
west of intake on San Gabriel River, and 1^ miles north of Azusa, Los Angeles 
County. 

Records available.— 1896 to September 30, 1918. 

Discharge. — Computed from record showing kilowatt output of power plant, on the 
assumption that 1 second-foot develops 25 kilowatts. Low-water record at 
power plant not reliable ; discharge computed from weir records obtained at sand 
box about one-fourth mile below intake. 

Extremes of discharge. — 1896-1918. Maximum mean daily discharge recorded 
November 27, 1906 (discharge, 97 second-feet); canal usually dry for a few days 
each year. 

Accuracy. — Records good. 

Diversion dam for canal is on San Gabriel River in SE. ^ SE. J sec. 31, T. 2 N., 
R. 9 W., about 5 miles above gaging station on San Gabriel River, at the mouth of 
the canyon near Azusa. The water is used for power development at a point about 
1| miles north of Azusa, and after leaving the power plant is divided and used for 
irrigation; part is discharged into Azusa-Covina canal and the rest into Duarte 
canal. During the rainy season part of the water from the power plant is wasted back 
into San Gabriel River below the gaging station. 



1 Published in early reports as San Gabriel power canal, and later as Pacific Light & Power Cor- 
poration's canal. 



SAN- GABKIEL RIVER BASIN. 



407 



Daily discharge, in second-feet, of Southern California Edison Co.'s canal near Azusa, 
Calif., for 1898-1918. 



Day. 



Oct. Nov. Dec. Jan. Feb. Mar. Apr. May. June. July. Aug. Sept, 



10 
10.5 
9 



8.5 
8.5 



7.5 
7.5 



7.9 

8.2 



8.4 
8.4 



10.1 
10.5 

10.5 
10.5 
11.2 
11.2 
10.5 

10.5 
10.5 
11 

11 5 
11.5 



11.8 
11.9 
11.9 



12 
12 
12 
12.2 

12.5 
12.6 
12.6 
12.6 
18.2 

15.2 

15 

15 

14.4 

14.5 

14.5 
14.5 
14.5 
14.5 
14.8 



14 
14.3 



14.8 
24.2 
20.3 
19 



18 
18 
19.7 
19.3 

20.4 
21.6 
22.8 
23.6 
24 

24 

24.1 

23.5 

23.2 

24.2 

26.2 



26.2 
24.2 
23.5 

23.5 
23.5 
23.5 
23.4 
23.4 

23.4 

23.4 

23 

21.8 

21.6 

20.3 

20 

20 

19.7 

19.7 

19.7 
19.7 
20.3 
22.4 
21.8 

21.2 
21.2 
21 



34 

32.5 

34 

33.5 

33.5 



21.5 
19.4 
18.7 

18.5 

18 

18.5 

18.7 

18.7 

19 
19 
19 
19 
19 

31.2 
36.4 



39.5 

37.4 
32.7 
31.7 
32.5 
35.5 

35.4 

32 

32 

31.6 

30 

29.5 



37 
37 
37.5 

36.5 

36 

35 

35 

35 

34 

32.5 

32.5 



25.3 

25.3 

27 

30 

35.5 



28 

27.5 

25.2 

24.8 

24.8 

25 

24 

22.2 

22 

23.5 

23.5 

22.2 

21 

21 

20.5 

20 

19.7 

19.5 

19.5 

18.5 

17 

16.5 

16.2 

17.5 

19.3 

21 

21.3 

20.5 

18 

17.5 



31.5 

32 

31 



25 

25.5 

20 

27.5 

45.5 

40 

38.5 

33.5 

37 

36 

35 

32.5 

30.5 

30 

30 

30.5 

29.5 

30.5 

30 



17.5 

17.5 

17 

17 

15.5 

17.5 
17.5 
16.5 
15.5 
14 

13 

13 

12.5 

12 

12.5 

14.1 

13 

13 

13.5 

11.5 

11.5 

11.5 

11.5 

12 

12 

12 

11.5 

11.5 

12.7 

12 

13.5 



23.5 

22.8 

21 

20.2 

20 

20 

21.5 



21.4 

21 

20.2 

18 

17.5 

16.2 

15.2 

17 

16 
17 
17.3 

17 
16 

16 
16 

15.8 

15 

14.5 



22.2 

20 

17 

15 

14.8 

13.5 
12 



14.5 

13 

13.5 

13 

13 

12 

14 

12.5 

11.5 

11.5 

11 
11 
10 



10 
10 
10 

11.5 
11.5 
11.5 
9.5 
9.5 



4.2 
4.2 
3.5 
3.4 
3.4 

3.5 

3.4 

3 

3.4 

3.5 

3.5 

3.3 

3 

3 

3 

3 

3.3 

3.5 

3.5 

3.5 



408 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Southern California Edison Co.'s canal near Azusa, 
Calif, for 1898-1918— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1899-1900. 
1 


3.7 

4 

4 

4 

4 

4 

4.3 

3.7 

3.7 

4.4 

8.5 

9 
22 
22 
26 

19 

16 

15 

13.5 

1.3.5 

13 

1.3.5 
14 
14 

12.5 

12 

12 

12.3 

11.5 

13 

12.3 

3.7 
4.2 
4.7 
4.8 
4.9 

4.9 

4.5 

4.3 

4 

4 

4.4 
4.7 
5.6 
6.4 
5.8 

5.3 
5.2 
5.5 

5.6 
6 

5.7 
5.5 
5.5 
5.8 
5.8 

5.8. 
5.3 
5.8 
6.2 
5.7 
5.7 


12 

11.5 

11.5 

11.7 

10.1 

10.2 
10.2 
10.2 
10.3 
12 

12 

12 

12 

14.5 

15 

15 
15 

14 
14 
14 

16 

23.5 

20 

18.3 
18 

17.2 
17 
17 

16.7 

16.3 



5.3 
5.5 
5.5 
5.5 
5.6 

5.8 
5.8 
5.8 
5.8 
5.9 

5.5 
5.7 
5.7 
5.9 
6.2 

7.1 
13.4 
15.6 
13.2 

1G.7 

bSl.S 


16.2 

16 

16 

16 

16.3 

16 

16 

15.7 

15.5 

15.5 

15.5 
15.5 
15.5 
15.5 
16 

23 
39 
30 

28 
25 

23 

22.5 

21.5 

20.7 

20.7 

20.7 

20.7 

21 

23 

23 

22 

52.6 
49.6 
48.7 
46.2 
44.3 

42.9 
43.5 
42.3 
35.6 
35.6 

34.5 
31.4 
33.6 
32.9 
32.3 

32.4 


022 
a22 

40 

50 
O50 

O40 
40 

a38 
a34 
a31 

32 
a31 
O30 

30 
029.2 

a28.5 
a2S 

21. b 
a21 
026.5 

26 
a25.4 
a24.8 
a24.2 

24.5 

024.4 
024.3 

24.2 
a23.8 

23.4 

23 

28 
28 
28 
28 
28 

"'35'"' 
90 

78 

71 

70 
69 
69 

68 

68 
67 
66 
66 
66 

77 
73 
70 
69 
68 

68 
68 
71 
70 
67 
67 


a22.8 
a22.7 
022.6 

22.5 

23 

o22. 5 
022.2 
21.8 
21.5 
20.8 

20.6 
20.5 
20.4 
20.4 
20.3 

20.3 
19.5 
19 
19 

19 

18.7 

18.7 

17.5 

18 

18 

18 
18 
17.5 

67 
67 
67 
67 
5 

70 
70 
70 
70 
70 

70 
70 
70 
70 

70 

70 
70 
70 
70 
70 

70 
70 
70 
70 

70 

70 
70 
70 


17 
17 
al7.5 

a27.5 
a30 

a24.5 

23 
a22 

21 

20 

20 

19.5 

19.3 

20 

18 

18 

18 

17.6 

18.4 

18.2 

18.1 

18 

25 

23 

20 

20 

19.5 

17.5 

17 

15.5 

15.5 

70 
70 
70 
70 
70 

70 
70 
69 
69 
69 

69 

69 
69 

69 
68 
68 
68 
68 

35 

57 
57 
57 
57 

57 
57 
39 
39 
55 
55 


15.5 

16 

17 

16 

16 

15.5 

20 

17.6 

16.3 

16.1 

15 
al4.6 
ol5 
ol5 
al4.6 

al3. 5 
al.3. 5 
al3 
al3 
ol4 

fl26 

o22 

al9 
18.5 
18.5 

19.7 

21 

21.5 

20.6 

18.5 

55 
55 
55 

55 

68 
60 
56 
56 
56 

56 
56 
56 
59 

63 

63 
70 
70 
70 
70 

71.5 
71.5 

82 
82 
82 

82 
82 
82 
82 
84 


17 
17 

16.2 
25 

a48 

54 
054 
a49 
«43 
a43 

a56 
56 
52 
47 
41.6 

40.3 

39 
a38.5 
a36.5 
«31 

a30.5 

a29 

O30.5 

a29.5 

027 

024 

a23.5 

a22.5 

022 

a21 

al9.5 

72 
72 
59 
59 
59 

59 
59 

67 
67 
67 

68 
68 
68 
68 
68 

68 
68 
68 
68 
65 

65 
65 
65 
66 
66 

66 
66 
66 
66 
66 
66 


21 
21.5 
19.4 
018.5 
18 

17.5 
al7.5 
al7.5 

"'i7.'i' 

17.5 
17.1 
18.1 
17.5 
16 

15.4 
14.3 
13.7 
12.3 
11.5 

11.7 

10.9 

10.1 

11 

10.8 

10.1 
9.6 
9.6 
9.1 
8.3 

66 
66 
66 
63 
63 

63 
63 
63 
63 
63 

63 
62 
62 
60 
60 

60 

55 

54.5 

54 

53.5 

50 

49.5 

49.5 

49.5 

52 

48.5 

46.5 

43.5 

41 

41 


9.9 
10.1 
9.6 
8.4 
8.9 

7.8 
7.4 
7.6 
7.2 
6.6 

6.2 
5.6 
5.1 
5.1 

7.2 

5.9 
5.6 
5.3 
5.3 
5.9 

5.4 
5.4 
4.8 
4.6 
4.3 

4.3 
4.6 
4.2 
4.9 
4.5 
4.1 

41 
41 
41 
40 

38 

36 
34 
33 
33 
32.5 

32 

32 

31.5 

30 

30 

30 
29 

28 
27 
28 

29 
27 
26 
25 
24.7 

24.2 

24.2 

24.2 

24.2 

25 

24.2 


3.5 
.3.5 
3.5 
3.5 
4.4 

4.6 
4.4 
4.3 
4.5 

4.7 

4 

4.6 

4.3 

4.5 

4.1 

3.9 
3.7 
4.3 
4.6 
4.5 

4 

3.6 

3.6 

3.6 

3.6 

3.6 
3.7 
3.6 
3.5 
3.9 
4.3 

23.5 

24.2 

25 

25 

26.8 

24 

23.4 

23 

22 

21 

20 

20 

21 

19.5 

19.5 

19.5 

19 

21 

19.3 

19 

19 

18.5 

18 

17 

15.7 

15 
15 
15 
15 
15 
15 


4.5 


2 


4.7 


3 


5.2 


4 


5 


5 


4.6 


6 


4.3 


7 


4.1 


8 


4 


9 


4.2 


10 


4.3 


11 


4.5 


12 


4.5 


13 


4.6 


14 


4.8 


15,. . . 


4.5 


16 


4.1 


17. 


3.7 


18 


3.5 


19 


3.3 


20 


3.4 


21 


3.3 


22 


3.1 


23 


3.8 


24 


5.2 


25 


5.7 


26 


5.2 


27 


4.7 


28 . 


4.3 


29 


4.2 


30 


3.9 


31 




1900-1901. 
1 


15 


2 


15 


3 . 


18.7 


4 


19 


5 


18.8 


6 


19.2 


7 


19 


8 


17.9 


9 


17.3 


10.. 


17.2 


11 


16.8 


12 
13.. 


16.6 
16.4 


14 


16.4 


15 


15.9 


16 


16 


17 


15.7 


18 


15.8 


19 


15.6 


20 


15.7 


21 


16.5 


22 /... 


18.6 


23 






19.6 


24 . 






20.4 


25 


« 




19.1 


26 






17.9 


27 






17.5 


28 


45.2 

48 

54.8 




17.3 


29 .. 


18.7 


30 


20.4 


31 





b Power conduit washed out soon after noon. 



SA]^ GABRIEL RIVER BASIN. 



409 



Daily discharge, in second-feet, of Southern California Edison CoJs canal near Azusa, 
Calif, for 1898-191S— Continued. 



21 

20 
20 
20 
20 

20 

17 

15.5 

16 

10 

15.5 
14.5 
14.5 
14. 5# 
15 

15.5 
15.5 
15.5 



14.5 
14.5 
16 
17 

18 



34 
33 

32.5 

32 

32 

31 

31 

31 
30 
29 
29 
30 

30 
29 
29 
29 



29 

28.5 

28,5 

28.5 

28.5 



30.5 
30 
29 
28.5 



27 
27.5 



25 

24.5 

24.5 

24 

23.5 

23 

22.5 

22 

22 



22.5 
23 



Mar. Apr. 


58 


62 


60 


62 


60 


62 


60 


62 


61 


62 


62 


62 


62 


62 


62 


62 


62 


62 


62 


62 


62 


62 


62 


62 


62 


46 


62 


62 


62 


62 


62 


62 


62 


62 


62 


60 


62 


61 


62 


61 


62 


62 


62 


62 


62 


60 


62 


60 


62 


56 


62 


54 


62 


52 


62 


50 


62 


48 


55 


48 


62 




59 


72 


57 


22 


57 


20 


70 


20 


72 


52 


72 


54 


72 


54 


72 


62 


72 


62 


72 


62 


72 


62 


72 


62 


72 


62 


72 


62 


72 


6? 


72 


62 


72 


62 


72 


62 


72 


16 


72 


18 


72 


40 


72 


52 


72 


62 


72 


62 


72 


62 


72 





72 


68 


72 


68 


72 


68 


72 


68 


72 





July. 



46 


23 


46 


21 


45 


20 


43 


20 


43 


22 


43 


25 


42 


25 


40 


22 


44 


22 


42 


21 


40 


20 


40 


20 


37 


19 


37 


18 


37 


16 


37 


16 


36 


16 


35 


14 


34 


14 


34 


14 


34 


14 


32 


14 


30 


15 


30 


15 


30 


14 


30 




70 


70 


70 


70 


70 


70 


70 


70 


70 


68 


70 


70 


70 


70 


70 


68 


70 


68 


70 


70 


70 


84 


70 


84 


70 


81 


70 


84 


70 


84 


70 


83 


70 


82 


70 


81 


70 


80 


70 


79.5 


70 


79 


70 


79 


70 


81 


50 


80 


70 


73 


60 


66 


60 


64 


6X 


63 


70 


63 


70 


62 


70 





53 
52 

50 
50 
49 

47 
46 

43.5 

43 

43 



37.5 
37 

36.5 

36 

36 

35.5 

35.3 

34.8 



Aug. 



34.8 
34.8 
34.5 
32.5 
31.5 

30.7 
30.7 
30.7 
30.2 
30 

30 
30 



26.7 
25.8 
26.3 
26.3 

25.8 
25.3 



27 


24.5 


27 


29 


26 


34.5 


25 


31.5 


25 


31.5 


24.5 





410 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALirOR:N^IA. 

Daily discharge, in second-feet, of Southern California Edison Co.'s canal near Azusa, 
Calif. Jor 1898-1918— Contmued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1903-4. 


31.5 

31 

30 

29 

26.5 

26.5 
26 
26 
26 

27.8 

24.8 
22.8 
22.5 
22.5 
22.5 

22 

21.6 

20.5 

21.5 

21.5 

21 
21 
21 
21 
21 

21 
21 
21 
21 
21 
21 

10.5 
9 
10 
10 
11 

12 

12.5 

15 

15.5 

15.5 

15.5 

14.5 

13.5 

13 

13.5 

13.5 
12 
11.5 
10.5 
9.5 

10 

10.5 

11 

11 

11 

11.5 

11.5 

11.5 

12 

12.5 

12.5 


21.5 
22.5 
22.5 
22.5 
22.5 

23 

23 

24.5 

24 

24 

24 
24 
25 
25 
25.5 

25.5 
25.5 
24.5 
24.5 
24.5 

25 

24.5 

23.4 

24 

24 

23.3 
23.3 
23.3 
23.3 
21.5 

12.5 
12.5 
12.5 
12.5 
12.5 

12.5 

12.5 

12 

11 

11 

11.5 

12 

12.5 

12.5 

12.5 

12.5 

12.6 

13.3 

13 

13.5 

13.5 

13.5 

13.5 

13 

13 

13.5 

14 

14 

14.5 
14.5 


21.5 

24 
24 
23 
22.5 

24 

23.5 

24.5 

24.5 

24.5 

24.7 

25.5 

25 

25 

25 

25 

24.5 

24.5 

24.8 

24.8 

24.8 
24.8 
24.5 
24.5 
24.5 

24.5 

24 

24 

24 

24 

24 

15 

15.3 

15.3 

15.3 

15.3 

14.7 

15.2 

15.3 

16 

16 

16 
16 
16 
16 
16 >s 

16 
16 
16 
16 
15.5 

15.7 

16.3 

16.8 

17 

16.7 

16 
16.7 
16.5 
16 

16 
48 


24 
24 
24 
24 
24 

23.5 

23.3 

24 

24.5 

24.5 

24.5 

24 

24 

23.5 

23.5 

23.5 
23.5 

28.2 
27.4 
27.4 

25.5 
25.2 
24.6 
24.5 
24.5 

24.5 

24 

23.5 

23.5 

23.5 

23 

30 
23 
21 
20 
19.5 

19 

18.5 

18.5 

41 

59 

40 
35 
31 
29 
27 

30 
30 
28 
28 
27 

55 

67 
67 
57 
46 

41 
40 

37 
36 
34 


23 

23.5 

23.5 

2-3.5 

59 

37 

31.5 

31 

30 

30 

30 

28 
28 
28 
28 

40 

41 

38 

34.5 

33 

31.4 

30.8 

30 

29.5 

29.5 

29.5 
30 

38 

34 
67 
70 

78 
68 

78 
69 
86 
74 
66 

66 
66 
66 
66 
66 

67 
66 
68 
69 
68 

68 
68 
68 
67 
68 

67 
67 
67 


47 

51.5 

47 

42 

40 

38 

37.5 

35.5 

35 

35.5 

60 
60 
56 
51 
49 

46 

44.5 

42.6 

41.5 

50 

48 
46 
62 
62 
62 

62 
62 
62 
66 
66 
66 

67 
67 
67 
67 


67 

72 
72 
72 
72 

72 
72 

70 
79 

80 
80 
80 
79 
80 

80 
78 
57 
54 
69 

80 
80 
80 
80 
80 
80 


66 
66 
66 

66 
66 

66 
66 
68 
68 
68 

68 
68 
66 
64 
64 

61 

58 
57 
66 
66 

66 
66 
67 
67 
67 

67 
67 
67 
67 
67 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 


67 
67 
67 
67 

67 

67 
67 
67 
67 
67 

67 
66 
65 
64 
61 

59 
56 
55 
53 
51 

49 

48 

44.5 

44.5 

46 

51 

46.5 
40 
40 
37 

38 

80 
80 
80 
80 
80 

80 
80 
48 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 
80 


38 

36.5 

35.5 

32.5 

32 

31 
30 
30 
29 

28 

26.5 
25.2 
25.2 
23 « 
24 

23 

22.5 

22 

22 

22 

25 
23 
23 
23 
22 

19 

18.5 
18.5 
18.5 
17.5 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

73 
73 
76 
76 


78 
78 
78 
78 
78 

78 
88 
84 
84 
84 

84 
84 
84 
84 
84 


18 

17.5 

17 

17 

16.5 

16 

16 

15.7 

15.5 

15 

13.8 

14 

14.3 

15.5 

15 

15 
14 
14 
13 
12.5 

11.8 

12 

12 

11.1 

11 

11 

12 

11.5 

12 

12 

11 

85 
85 
86 
85 
85 

86 
86 
85 
85 
85 

71 

74 

75 
74 
74 

74 
74 
74 
73 
73 

70 
69 
68 
67 
64 

62 
64 
62 
60 
68 
56 


10 
9.5 
10 
10 
10 

10 

12 

12.7 

11.5 

11.5 

11 
10 
29 
15 
14.5 

14 

14 

13.7 

13.7 

13.7 

13.5 

15 

15 

14.5 

14.5 

13 

12.5 

11.5 

11.3 

11 

11 

55 
54 
54 
53 

52 

50 
47 
46 
45 
45 

46 
44 
44 
43 
43 

42 
41 
40 
41 
41 

40 
40 
39 
38 
38 

36 
36 
35 
34 
33 
33 


11 


2 


10.5 


3 


10.5 


4 


10.8 


5 


11 


6 


9 


7 


8.5 


8 


7.5 


9 


8.5 


10 


9.5 


11 


9.5 


12. .. 


9.5 


13 


12.5 


14 


11.5 


15 


11 


16 


10 


17 


11 


18 


12 


19 


12 


20 


12 


21 


12 


22 


12 


23. 


11 


24 


12 


25 


12.7 


26 


13.5 


27 


12.5 


28 


12 


29 


10.5 


30 


10.5 


31 




1904-5. 
1 


34 


2 


33 


3 


32 


4 


33 


5 


34 


6 


35 


7 


34 


8 


33 


9 


32 


10.. 


32 


11 


32 


12 


32 


13 


32 


14 


31 


15 


31 


16 


30 


17 


31 


18 


31 


19 


30 


20 


29 


21 


29 


22 


28 


23 


30 


24 


30 


25. . . 


30 


26 


29 


27 


30 


28 


31 


29 


32 


30 


31 


31 





SAN GABRIEL RIVER BASIN. 



411 



Daily discharge, in second-feet, of Southern California Edison Co.^s canal near Azusa, 
Calif , for 1898-1918— Gontinned. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1905-6. 
1 


30 
29 
28 

28 
28 

28 
28 
28 
27 
27 

27 
27 
28 
29 
29 

29 
30 
30 
30 
29 

29 
31 
32 
31 
30 

29 
29 
28 
28 
29 
28 

42 
42 
42 
42 
41 

40 
40 
40 
40 
40 

40 
40 
40 
39 
38 

38 
39 
39 
40 
41 

40 
40 
40 
40 
40 

40 
39 
38 
38 
38 
38 


29 
29 
29 
29 
29 

32 
44 
95 
53 
42 

38 
36 
36 
34 
34 

45 
53 
43 
40 
42 

41 
39 
38 
37 
37 

37 
97 
87 
62 
53 

38 
38 
38 
38 
38 

39 
39 
39 
38 
38 

38 
38 
38 

38 
38 

38 
38 
37 
37 
38 

41 
45 

47 
45 
45 

46 
46 
45 
45 
45 


50 

47 
45 
44 
44 

42 
42 
41 
39 
37 

37 
37 
38 
39 
39 

39 
39 
39 

38 
46 

42 
39 
38 
37 
38 

38 
38 
38 
37 
37 
38 

45 
46 
68 
64 
51 

51 

47 
47 
50 
76 

60 
75 
76 
76 
76 

76 
76 
76 
76 

72 

65 
62 
59 

58 
58 

76 
76 
76 
76 
76 
76 


37 
37 
37 
37 
37 

37 
37 
37 
37 

36 

36 
37 
37 
49 
52 

41 
41 
42 

76 

76 
76 
76 
76 
66 

66 
61 
57 
58 
54 
52 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 
76 


50 
50 
49 
50 
63 

63 
56 

47 
47 

57 

72 
69 
15 
15 
15 

15 
40 

74 
74 

74 

75 
74 
74 
74 
70 

70 
73 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 


75 
68 
65 
20 
20 

74 
70 
70 
71 
64 

56 

74 
74 
74 
77 

78 
78 
78 
77 
75 

72 
71 
65 
78 
76 

78 
78 
78 
76 
76 
78 

76 
76 
76 
76 
76 

76 
76 
76 
76 


76 
76 
76 
76 
76 

76 

76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 
76 


78 
52 
58 
76 
74 

76 

78 
78 
77 
76 

65 
74 
78 
76 
76 

76 
72 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
78 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 


76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
53 
48 
60 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 
76 


54 
52 
54 
65 

76 

76 
76 
76 
76 

76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 


76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 
76 


76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
72 
68 
68 

68 
68 
68 
66 
64 

60 
60 
59 
59 

58 
57 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 
76 


54 


2 


55 


3 


53 


4 


52 


5 


52 


6 


50 


7 


50 


8 


49 


9 


49 


10.. 


49 


11 


49 


12 


49 


13 


50 


14 


50 


15 


52 


16 


51 


17 


50 


18 


46 


19 


45 


20 


45 


21 


44 


22 


44 


23 


43 


24 


43 


25 .... 


43 


26 


43 


27 


43 


28 


43 


29 


42 


30 


42 


31 




1906-7. 
1 


76 


2 


76 


3 


76 


4 


76 


5 


76 


6 


76 


7 


72 


8 


67 


9 


59 


10. 


59 


11 


57 


12 


57 


13 


57 


14 


57 


15 


57 


16 


57 


17 


57 


18 . 


57 


19 


57 


20... 


56 


21. 


53 


22 


51 


23 


50 


24 


50 


25 


50 


26 


50 


27 


50 


28 


50 


29 


50 


30 


51 


31 





412 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Southern California Edison Co.^s canal near Azusa, 
Calif, for 1898-1918— Contijiued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1907-8. 
1 


51 
50 
50 
50 

58 

63 
60 
56 
54 
50 

50 
50 
50 
50 
66 

76 
76 
75 
70 
67 

61 

66 
76 
76 
76 

76 
76 
76 
76 
76 
76 

30 
31 
38 
36 
35 

34 
32 
30 
30 
29 

29 
30 
32 
32 
32 

34 
40 
40 
39 
39 

38 
36 
34 
34 
34 

32 
33 
32 
32 
32 
32 


76 
76 
76 
71 
69 

66 
65 
66 
67 
76 

73 
66 
64 

ea 

62 

61 
58 
59 
59 
61 

61 
61 
61 
58 
57 

57 
57 
57 
56 
55 

32 
32 
32 
32 

32 

31 
32 
32 
32 
32 

33 
33 
33 
33 
33 

33 
33 
33 
33 
33 

33 
33 
33 
33 
33 

33 
36 
35 
34 
34 


54 
54 
53 
54 
54 

54 
76 
76 
67 
63 

66 
62 
58 
57 
57 

57 

57 
57 
57 

57 

56 
55 
55 
54 
54 

54 
54 
65 
67 
57 
57 

34 
57 
80 
80 
81 

67 

47 
44 

44 
43 
43 
43 
41 

41 
43 
40 
40 
40 

40 
40 
40 
40 
40 

40 
40 
39 
39 
39 
39 


56 
54 
54 
52 
52 

51 
51 
50 
50 
50 

50 
48 
49 
76 
76 

66 
58 
56 
56 
56 

54 
54 
65 
76 
76 

76 
76 
76 
76 
76 
76 

39 
39 
39 
39 
39 

39 
39 
39 

62 

82 

58 
58 
76 
69 
62 

62 
62 
62 
59 
58 

69 
32 
63 
62 
64 

62 
62 
62 
62 
62 
62 


76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
i?6 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 

66 
67 
67 
67 
67 

67 
67 
67 
67 
67 

66 
65 
66 
66 
66 

66 
67 
67 
67 
67 

67 
67 
67 
67 
67 

67 
67 
67 


76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 
76 

1? 

67 
67 
67 

67 
67 
67 
67 
67 

67 
67 
67 
67 
67 

67 
67 
67 
67 
67 

67 
67 
67 
67 
67 

67 
67 
67 
67 
67 
67 


76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

It 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

67 
67 
67 

67 

67 
67 
67 
67 
67 

67 
67 
67 
67 
67 

67 
67 
67 
67 
67 

67 
67 
67 
67 
67 

67 

67 
67 
67 
67 


76 
76 
76 
76 
76 

76 
76 
76 
76 
27 

76 
76 
76 
76 
76 

76 
76 
7C 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 
76 

67 
67 
67 
67 
67 

67 
67 
67 
67 
67 

62 
62 
34 
30 
39 

40 
40 
40 
40 

















76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
76 
76 

76 
76 
76 
56 
54 

53 
52 
51 
50 
49 

40 
40 
65 
66 
66 

66 
66 
66 
66 
66 

66 
66 
66 
66 
66 

66 
66 
66 
66 
66 

67 
67 
68 
67 
67 

69 
69 
68 
69 
66 


48 
47 
45 
44 

45 

43 
43 
42 
42 
42 

42 
42 
42 
41 
40 

39 
39 
39 
39 
38 

37 
37 
36 
36 
36 

36 
36 
36 
35 
34 
33 

66 
68 
68 
69 
68 

68 
09 
69 
69 
69 

68 
68 
68 
68 
68 

68 
68 
68 
68 
67 

67 
66 
66 

67 
67 

67 
68 
67 
64 
62 
61 


37 
42 
43 
42 
40 

40 
39 
39 
37 

42 

41 
39 
38 
37 
37 

37 
35 
34 
34 
32 

32 
31 
30 
30 
30 

30 
30 
29 
29 
29 
29 

59 
59 
58 
56 
56 

55 
55 
52 
53 
52 

51 
50 
49 
48 

48 

48 
49 
56 
56 
53 

49 
48 
47 
45 
44 

43 
43 
43 
42 
52 
51 


29 


2 


29 


3....: 


28 


4. . 


26 


5 


26 


6 


26 


7 


26 


8 


28 


9 :. 


29 


10 


32 


11.... 


30 


12 


28 


13 


27 


14 


26 


15 


26 


16 


26 


17. 


27 


18 

19 


28 
27 


20 


26 


21 


28 


22 


28 


23 


26 


24 


62 


25 


54 


26 


39 


27 


36 


28 


33 


29 


32 


30 


31 


31 




1908-9. 
1 


52 


2 . . 


48 


3 


45 


4 


45 


5. . 


43 


6 


42 


7 


43 


8 


42 


9 


40 


10 


40 


11 


38 


12 


39 


13 


38 


14. 


37 


15 


37 


16 


36 


17 


36 


18 


36 


19.... 


35 


20 


35 


21 


35 


22 


35 


23 . 


35 


24 


36 


25 


37 


26 


38 


27 


38 


28 


37 


29 


36 


30 


37 


31 





SAN GABRIEL EIVER BASIN. 



413 



Daily discharge, in second-feet, of Southern California Edison Co.^s canal near Azusa, 
Calif., for 1898-1918— Continued, 



Oct. Nov. Dec. Jan. Feb. Mar. Apr. May. Jxine. July. Aug. Sept. 



414 SURFACE WATER OF PACIFIC SLOPE, SOUTHER!^ CALIFORNIA. 

Daily discharge, in second-feet, of Southern California Edison Co.^s canal near Azusa, 
Calif., for 1898-1918— Gontmued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1911-12. 
1 


67 
70 
66 
60 
56 

55 
52 
51 
52 
51 

51 
50 

48 
47 
45 

44 
45 
45 
45 
44 

44 
44 
44 
44 
44 

45 
53 
55 
53 
53 
51 

24 
25 
32 
37 
39 

35 
34 
34 
33 
32 

30 
30 
30 
29 
29 

28 
28 
27 
27 
26 

26 
26 
28 
27 
26 

26 
30 
32 
32 
32 
30 


49 
49 
45 
45 

46 

47 
47 
46 
47 
49 

52 
51 
50 
50 
49 

50 

47 
46 
47 
47 

47 
47 
47 
46 
46 

43 
44 
44 
44 
44 

29 
27 
28 

28 
28 

28 
28 
27 
28 
31 

35 
32 
30 
31 
30 

30 
30 
30 
30 
30 

28 
28 
29 
28 
28 

28 
28 
27 
27 
30 


44 
43 
43 
44 
45 

50 
56 
49 
47 
46 

46 
45 
45 
46 
46 

46 
48 
48 
47 

47 

47 
45 
46 
45 
45 

45 
46 
47 
54 
50 
48 

31 
30 
30 
30 
30 

29 

28 
28 
28 
28 

28 
27 
26 
26 
27 

27 
29 
29 
28 
29 

28 
28 
29 
30 
30 

29 
29 
29 
29 
29 
29 


48 
53 
49 
48 
49 

49 
48 
48 
47 
47 

48 
48 
47 

45 

45 
45 
45 
45 
45 

44 
44 
42 
42 
42 

42 
44 
44 
42 
41 
42 

29 
28 
28 
28 

27 

25 
25 
28 
.30 
32 

32 
32 
32 
32 
51 

68 
68 
69 
68 
60 

51 
47 
45 
43 
42 

42 
42 
42 
42 
42 
41 


42 
42 
41 

i\ 

40 
40 
40 
41 
40 

40 
40 
40 
40 
38 

38 
39 
38 
38 
36 

36 
38 
37 
36 
37 

37 
37 
37 
35 

40 
40 
40 
40 
39 

40 
56 
73 
73 
73 

73 

73 
73 
72 

70 

68 
64 
64 
64 
61 

59 
68 
59 

77 
77 

77 
77 
77 


40 
42 
39 
56 

72 

72 
71 

74 
74 
74 

75 
75 
75 
75 
75 

75 
75 

75 
75 
75 

75 
75 
75 
75 
75 

75 
75 
75 
75 

75 
75 

77 
77 
77 
77 
77 

77 
77 
77 
77 
77 

77 

77 
77 
77 
77 

77 
77 
77 
77 
77 

77 
77 
77 
77 
77 

77 
77 
77 
77 
30 
77 


75 

75 
75 

75 

75 

75 
75 
75 

74 
74 

73 

75 
75 
75 
75 

75 
75 
74 
74 
18 








24 
37 
44 
51 

77 
77 
77 
77 
77 

77 
77 

?? 

77 

77 
77 
77 
77 
77 

77 
77 
77 
77 
77 

77 
77 
77 
77 
77 

77 
77 
77 
77 
77 


54 

58 
59 
69 

75 

77 
63' 
57 
60 
76 

76 
76 
76 
77 

77 

77 
77 
77 
77 
77 

77 
77 
77 
77 
77 

77 
77 
77 
77 
77 
77 

77 

77 
77 
77 
77 

77 
77 
77 
77 
77 

77 
77 
77 
77 
76 

76 
75 
74 
74 
73 

73 
72 
70 
68 
67 

66 
66 
70 
68 
64 
59 


77 
77 
77 
75 
77 

77 
77 
77 
77 
77 

77 
77 
77 
77 
77 

77 
77 
77 
76 
75 

72 
72 
73 
75 
71 

69 
67 
66 
63 
63 

59 
59 
57 
60 
62 

58 
56 
54 
55 
54 

53 
51 

48 
46 
46 

44 
44 
42 
40 
39 

37 
34 
35 
36 
38 

42 
57 
61 
50 

42 


61 
61 
64 
69 
62 

58 
57 
56 
54 
53 

52 
50 
49 
49 
48 

48 
50 
50 
48 
46 

44 
43 
44 
42 
42 

41 
41 
40 
41 
41 
41 

39 
38 
35 
35 
34 

31 
31 
29 

28 

27 

25 
25 
26 
25 
26 

24 
23 
22 
22 
24 

28 
27 
25 
24 
24 

26 
29 
26 
26 
25 
24 


39 

40 
39 
37 
36 

34 
34 
33 
32 
32 

32 
32 
32 
32 
31 

32 
32 
34 
33 
32 

30 
30 
29 

28 
28 

28 
27 
27 
28 
28 
28 

23 
22 
20 
18 
17 

17 
16 
16 
17 
19 

17 
17 
17 
17 
17 

17 
17 
17 
16 
15 

16 
16 
18 
16 
17 

16 
17 
16 
16 
20 
20 


28 


2 


28 


3 . 


28 


4 


30 


5 


31 


6 


30 


7 


28 


8 


29 


9 


29 


10 


28 


11 


27 


12 


28 


13 


26 


14 


25 


15 


25 


16 


26 


17 


25 


18 


24 


19 


25 


20 


24 


21 


24 


22 


23 


23 


23 


24 


25 


25 


25 


26 


24 


27 


24 


28 


23 


29 


23 


30 


23 


31 . . 




1912-13. 
1 


20 


2 


21 


3 


21 


4 


17 


5 


16 


6 


16 


7 


16 


8 


17 


9 


16 


10 


15 


11 


15 


12 


15 


13 


14 


14 


14 


15 


14 


16... . 


13 


17 


13 


18 


13 


19 


13 


20..... 


13 


21 


13 


22. 


13 


23 


14 


24 


16 


25. 


15 


26 


14 


27 


14 


28 


14 


29 


13 


30 


13 


31 





Note.— Mar. 30, 1913, water out of canal 6 a. m. to 7 p. m.r mean discharge for day estimated. 



SAN GABKIEL RIVER BASIl^. 



415 



Daily discharge, in second-feet, of Southern California Edison Co.'s canal near Azusa, 
Calif., for 1898-1918— Continued. 



Day. 



Nov. Dec. Jan. Feb. Mar. Apr. May. June. July. Aug. Sept. 



416 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Daily discharge, in second-feet, of Southern California Edison Co.^s canal near Azusa, 
Calif., for 1898-1918— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1915-16. 
1 


48 
47 
48 
47 
46 

45 
45 
45 
44 
45 

46 
47 
47 
47 

48 

48 
46 
46 
45 
44 

44 
44 
44 
43 
43 

42 
42 
42 
41 
42 
43 

82 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 

85 

80 
76 
78 
77 
76 
74 


43 
43 
43 

42 
44 

54 
60 
56 
57 
61 

57 
68 
54 
52 
52 

52 
51 
50 
50 
50 

49 
49 
50 
49 

48 

49 
49 
49 
49 
49 

73 

72 
72 
72 

77 

75 
75 
73 
72 
71 

70 
71 
70 
68 
68 

68 
68 
67 
68 
.68 

67 
66 
66 
66 
67 

67 
66 
67 
67 
66 


49 
48 
48 
69 
67 

60 
58 
58 
55 
56 

55 
56 
55 

72 
76 

65 
62 
61 
60 
59 

58 
56 
56 
54 
54 

53 
53 
54 
53 
61 
62 

66 
67 
76 
79 
73 

71 

70 
70 
70 

68 

67 
66 
65 
64 
63 

63 
65 
65 
65 
65 

65 
65 
62 
90 
90 

90 
90 
82 
87 
90 
90 


63 
74 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
15.9 
.0 

80 
70 

80 
80 
80 
80 
80 

80 
80 
52 
80 
80 
80 

90 
90 
90 
90 
90 

90 

84 
84 
84 
84 

84 
84 
84 
84 
87 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 
90 


80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 

80 
80 
80 

80 
80 
80 
80 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 


80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 
80 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 
90 


80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
90 
90 

. 90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
45 

45 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 


90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
45 
45 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 
90 


90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 

88 
87 
84 
83 

76 
74 
72 
71 
70 

69 
68 
67 
67 
66 

67 

65 
62 
02 
63 


90 
90 
90 
90 
90 

90 
84 
81 
79 
79 

80 
80 
80 
80 
80 

80 
80 
79 

77 
76 

73 
72 

72 
70 
70 

67 
67 
67 
65 
61 
62 

60 
59 
59 

58 
67 

57 
66 
55 
54 
52 

51 
51 
50 
50 

48 

46 
45 
45 
43 
42 

44 
42 
42 
43 
44 

42 
44 
76 
57 
57 
51 


59 

68 
61 
58 
62 

61 
59 
55 

62 
62 

61 
60 
58 
57 
60 

59 
61 
61 
60 

58 

60 
57 
53 
57 
57 

56 
55 
54 
54 
62 
52 

50 
48 
44 
45 
44 

43 
40 
39 

38 
38 

37 
37 
37 
36 
34 

34 
33 
33 
32 
32 

32 
31. 
34 
32 
32 

30 
30 
29 
28 
27 
27 


51 


2.. 


48 


3 .... 


60 


4 


49 


5 


49 


6. 


49 


7. 


50 


8 


48 


9 


48 


10. 


47 


11.... 


47 


12 


45 


13 


45 


14 


44 


15 


42 


16 


43 


17 


43 


18 


45 


19 


45 


20 


47 


21 


47 


22 


48 


23 


49 


24 


48 


25 


49 


26 


49 


27 


48 


28 


46 


29 


44 


30 


54 


31 




1916-17. 
1 


29 




27 


3 


27 


4 


28 


5 


27 


6 


27 


7 


27 


8 


27 


9 


25 


10 


24 


11 


24 


12 ..... 


24 


13 


24 


14 


24 


15 


24 


16... 


24 


17 


24 


18 


24 


19 


2S 


20 


24 


21 


24 


22 


24 


23 


27 


24 


27 


25 


27 


26 


27 


27 


24 


28 


26 


29 


24 


30 ... 


24 


31 





SA:N- GABRIEL RIVER BASII^. 



417 



Daily discharge, in second-feet, of Southern California Edison Co.^s canal near Azusa, 
Calif. Jor 1898-1918— Gontmned. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1917-18. 
1 


24 
24 
23 
23 
22 

22 
22 
22 
22 
22 

22 
24 
27 
28 
29 

31 
32 
31 

27 
28 

27 
26 
25 
24 
24 

23 
24 
26 
27 

27 
26 


24 
24 
24 
24 
26 

37 
40 
36 
34 
33 

32 
32 
32 
32 
32 

32 
32 
32 
29 
29 

29 
30 
31 
32 
32 

32 
32 
32 
32 
32 


32 
32 
32 
34 
34 

33 
33 
32 
32 
32 

32 
32 
33 
33 
33 

32 
32 
32 
32 
32 

32 
32 
32 
33 
33 

33 
33 
33 
32 
32 
32 


32 
32 
32 
32 
32 

31 
31 
31 
32 
31 

30 
31 
33 
33 
33 

33 
33 
33 
32 
32 

32 
32 
32 
32 
38 

38 
36 
35 
35 
35 
35 


35 
34 
34 
33 
32 

32 
34 

33 
32 
32 

32 
31 
31 
32 
32 

32 
32 
61 
46 
64 

90 
90 
90 
90 
90 

90 
90 
90 


90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 
90 


"■"52" 
90 

90 
90 
90 
* 90 
90 

90 

90 
90 
90 
90 

90 
90 
90 
90 
90 


90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 
90 


90 
90 
90 
80 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
90 
90 
90 

90 
90 
88 
89 

88 

87 
84 
82 
83 
81 


83 
81 
76 
78 
74 

73 
72 
71 
70 
69 

70 
69 
68 
68 
65 

65 
62 
61 
60 

58 

57 
57 
57 
57 

58 

58 
55 
53 
52 
51 
50 


52 
52 
49 
46 

48 

48 
50 
49 
47 

48 

47 
47 
46 
48 
50 

53 
51 
49 
47 
47 

46 
44 
42 
42 
40 

39 
41 
40 
43 
41 
41 


42 


2 


41 


3... 


39 


4.. 


40 


5 


39 


6 


35 


7 


37 


8 


36 


9 


36 


10 


35 


11 


34 


12 


34 


13 


. 34 


14 


38 


15 


39 


16 


41 


17.. 


40 


18 


37 


19 


37 


20 


38 


21 


35 


22 


38 


23 


38 


24 


38 


25. 


37 


26 


36 


27 


56 


28 


55 


29 


48 


30 . 


43 


31 









Note.— No flow Apr. 1-13. 



Monthly 



of Southern California Edison Co. 
1896-1918. 



s canal near Azusa, Calif, for 



Discharge in second-feet, 



Maxi- Mini- 
mum, mum. 



Run-off 
(total in 
acre- 
feet). 



Discharge in second-feet 



Maxi- Mini- 



Run-off 
(totalin 
acre- 
feet). 



1896. 

January 

February... 

March 

April 

May 

June 

July 

August 

September.. 



1,599 

1,726 

2,214 

2,559 

2,214 

1,131 

738 

861 

774 



The period.. 



13,800 



1896-97. 

October 

November... 
December. .. 

January 

February 

March 

April 

May 

June 

July 

August 

September... 



17 


1,012 


20 


1,230 


17.56 


1,072 


13.10 


726 


17.14 


1,051 


35.30 


2,102 


62.97 


3,810 


63.20 


3,759 


38.13 


2,343 


26.45 


1,613 


20.66 


1,226 



The year. . 



28. 5 20, 



1897-98. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 

June 

July 

August 

September... 
The year. 

1898-99. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 

June 

July 

August 

September... 
The year 



10 

16 

25 

23 

10 

28 

25.3 

20.0 

14.5 

9 

5 

6.1 



18.03 
23.30 
26.84 
26 
29 
35 
33 
32 
19 
11 
7 



1,106 

1,385 

1,648 

1,591 

1,618 

2,129 

1,950 

1,947 

1,159 

672 

456 

467 

16, 100 



11.7 
15 
20 
18 
16 
12 
5 



533 

580 

832 

1,340 

1,244 

1,623 

1,262 

842 

565 

221 

295 

220 

9,560 



142131°— 21— wsp 447- 



418 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Monthly discharge of Southern California Edison Co.''s canal near Azusa, Calif ., for 
1896-1918— Continued. 



Month. 


Discharge in second- 
feet. 


Run-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Run-off 
(total in 


Maxi- 
mum. 


Mini- 
mvun. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1899-1900. 
October 


26 
24 
39 
50 
23 
30 
26 
56 
22 
10 
5 
6 


4 

10 
16 
22 
18 
16 
13 
16 
8 
4 
4 
3 


11.1 

14.0 

20 

30 

20 

20 

17 

35 

15 

6 

4 

4 


683 

847 

1,247 

1,845 

1,111 

1,230 

1,012 

2,152 

893 

369 

246 

238 


1904-5. 
October 


15.5 
14.5 

48 
67 
86 
80 
80 
80 
88 
86 
55 
35 


' 9 
11 

14.7 
18.5 
34 


80 
80 


56 
33 
28 


12.0 

12.8 
16.9 
35.2 
67.8 
68.8 
80.0 
80.0 
77.5 
74.2 
42.8 
31.4 


738 


November 

December 


November 

December 

January 


762 
1,040 
2,160 


February 

March 


February 

March 


3,770 
4,230 


April 


April 


4,760 


Mav 


May 


4,920 




June 


4,610 


July- 


July 


4,560 




August 


2,630 


September 


September 

The year 

1905-6. 
October 


1,870 


The year... 


56 


3 


16.3 


11,900 


88 





49.8 


36,000 


1900-1901. 
October 


6 
55 
53 
90 
70 
70 
84 
72 
66 
41 
27 
20 


4 
5 
31 

5 
35 
55 
59 
41 
24 
15 
15 


5 
14 
40 
58 
67 
63 
67 
66 
56 
30 
20 
17 


307 
833 
1,269 
3,566 
3,721 
3,874 
3,987 
4,058 
3,332 
1,845 
1,230 
1,012 


32 

97 
50 
76 
76 
78 
78 
76 
76 
76 
76 
55 


27 
29 
37 

15 
20 
52 
48 
52 
76 
57 
42 


28.8 
44.7 
40.1 
48.3 
56.5 
69.8 
74.3 
73.8 
73.4 
76.0 
70.5 
47.7 


1,770 


November 

December 


November 

December 


2,660 
2,470 
2,970 


February 


February 

March 


3,140 
4,290 


April 


April 


4,420 


May 


May.:::;:::::::: 


4,540 


June 


June 


4,370 


July 


July .. . . 


4,670 






4,330 


September 


September 

The year..... 

1906-7. 
October 


2,840 


The year.... 


90 





41.9 


29,000 


97 





68.7 


42,500 


1901-2. 
October 


64 

50 

30 

51 

63 

62 

62 

48 

29.5 

17 

8.5 

6 



29 
26 
24 
27 
55 
46 
30 
13.5 

7.5 

6 

4.5 


21 
32 
27 
28 
34 
61 
59 
39 
20 
11 
7 
5 


1,291 

1,904 

1,660 

1,722 

1,888 

3,750 

3,510 

2,398 

1,190 

676 

430 

298 


42 
47 
76 
76 
76 
76 
76 
76 
76 
76 
76 
76 


38 
37 
45 
76 
76 

76 
76 
76 
76 
76 
50 


39.8 
40.4 
65.5 
76.0 
76.0 
71.1 
76.0 
76.0 
76.0 
76.0 
76.0 
59.6 


2,450 


November 

December 

January 


November 

December 

January 


2,400 
4,030 
4,670 


February 

March 


February 

March 


4,220 
4,370 


April 


April 


4,520 


MSy.:::::::::::: 


May 


4,670 






4,520 


July 


July 


4,670 


August 




4,670 
3,550 


September 


September 

The year 

1907-8. 


The year 


64 





28.7 


20, 700 


76 





67.3 


48,700 


1902-3. 
October 


10 
62 

68 

68 

74 

72 

72 

70 

84 

58.5 

34.8 

34.5 


6 

8 
16 
22 
61 
57 


50 
62 

34.8 
24.5 
21 


7.1 
18.9 
31.8 
30.2 
69.6 
70.5 
52.0 
68.6 
74.2 
43.4 
28.6 
24.6 


437 
1,120 
1,960 
1,860 
3,870 
4,330 
3,090 
4,220 
4,420 
2,670 
1,760 
1,460 


76 
76 
76 
76 
76 
76 
76 
76 
76 
48 
43 
62 


50 
55 
53 
48 
76 
76 
76 
27 
49 
33 
29 
26 


64.0 
63.8 
58.6 
61.0 
76.0 
76.0 
76.0 
74.4 
70.4 
39.8 
35.3 
30.6 


3,940 
3,800 
3,600 
3,750 
4,370 
4,670 


November 

December 

January 


November 

December 


February 

March 


February 

March 


April 


April 


4,520 
4,570 


May 


May 


June 


June 


4,190 


July 


July 


2,450 
2,170 
1,820 


August 




September 


September 

The year 

1908-9. 


The year 


84 





43.1 


31. 200 


76 


26 


60.4 


43,800 


1903-4. 
October 


31.5 

25.5 

25.5 

28.2 

59 

66 

68 

67 

38 

18 

29 

13.5 


20.5 

21.5 

21.5 

23 


35 

57 

37 

17.5 

11 
9.5 
7.5 


23.7 
23.8 
24.3 
24.4 
30.7 
50.8 
65.7 
56.5 
25.5 
14.0 
12.9 
10.8 


1,460 

1,420 

1,490 

1,500 

1,770 

3,120 

3,910 

3,470 

1,520 

861 

793 

643 


40 

36 

81 

82 

67 

67 

67 

67 

69 

69 

59 • 

52 


29 
31 
34 
39 
65 
67 


40 
61 
42 
35 


33.6 
32.9 
46.7 
56.3 
66.7 
67.0 
64.8 
34.1 
64.8 
67.2 
50.7 
39.0 


2,070 
1,960 
2,870 
3,460 
3,700 
4,120 
3,860 
2,100 


November 

December 

January 


November 

December 


February 

March 


February 


April 


April .... 


May 


May 


June 




3,860 


July 


July 


4,130 


August 




3,120 
2,320 


September 


September 

The year.... 


The year 


68 





30.2 


22,000 


82 





51.9 


37,600 



SAN GABRIEL RIVER BASIN. 



419 



Monthly discharge of Southern California Edison Co.^s canal near Azusa, Calif., for 
1896-1918— Continued. 



Discharge in 
feet. 



Maxi- Mini- 
mum, mum. 



Run-ofl 
(total in 
acre- 
feet). 



Discharge in second- 
feet. 



Maxi- 
mum. 



Mini- 
mum. 



Run-off 
(total in 



37.5 
48.0 
70.0 
67.5 
72.5 
73.0 
72.3 
71.1 
59.8 
39.9 
27.8 
23.1 



25.4 
31.4 
32.8 
59.4 
72.9 
66.1 
73.1 
69.5 
71.4 
70.7 
58.7 
45.0 



56.4 



50.8 
47.0 
46.7 
44.1 
38.8 
70.6 
53.1 
73.0 
74.2 
49.8 
31.9 
26.0 



50.6 



29.8 
29.0 
28.6 
41.0 
63.1 
75.5 
77.0 
73.2 
48.6 
27.5 
17.4 
15.0 



2,310 
2,860 
4,300 
4,150 
4,030 
4,490 
4,300 
4,370 
3,560 
2,450 
1,710 
1,370 



39,900 



1,560 
1,870 
2,020 
3,650 
4,050 
4,060 
4,350 
4,270 
4,250 
4,350 
3,610 
2,680 



40, 700 



3,120 
2,800 
2,870 
2,710 
2,230 
4,340 
3,160 
4,490 
4.420 
3,060 
1,960 
1,550 



36,700 



1,830 
1,730 
1,760 
2,520 
3,500 
4,640 
4,580 
4,500 
2,890 
1,690 
1,070 



14.8 


910 


36.8 


2,190 


35.3 


2,170 


39.0 


2,400 


33. 4 


1,850 


19.7 


1.210 


63.5 


3,780 



1913-14. 

May 

June , . . 

July 

August 

September. . . 

The year 

1914-15. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 

June 

July 

August 

September. . . 

The year 

1915-16. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 

June 

July 

August 



The year 

1916-17. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 

June 

July 

August 

September. . . 

The year 

1917-18. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 

June 

July 

August 

September. . . 

The year. 



78.5 
80.0 
80.0 
59.1 

45.8 



45.0 
41.0 
62.7 
65.1 
80.0 
82.6 
88.0 
89.4 
90.0 
90.0 
64.8 
54.9 



71.1 



45.0 
50.6 
58.2 
73.4 
80.0 
80.0 
82.3 
87.1 
90.0 
77.5 
58.0 
47.2 



87.0 
69.4 
72.9 
88.4 
90.0 
90.0 
87.0 
90.0 
78.4 
51.0 
35.7 
25.4 



72.0 



25.3 
31.0 
32.5 
32.9 
51.6 
90.0 
49.7 
90.0 
88.7 
64.5 
46.2 
39.2 



53.5 



420 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 
TUNNEL DIVERSION NEAR AZTJSA, CALIF. 

Location.— About on line between sees. 22 and 23, T, IN., R. 10 W., at weir box 
where water is divided between Azusa and Duarte canals, 1,000 feet northeast 
of Southern California Edison Co.'s power plant, and 1^ miles north of Azusa, 
Los Angeles County. 

Records available. — October 1, 1917, to September 30, 1918. Dischargemeasure- 
ments only. May 31, 1916, to May 28, 1917. 

Gage. — Gage heights are determined by measuring distance to water surface from ref- 
erence point on north wall of weir box. (See PI. X, C, p. 61.) Read by B. Bunje. 

Discharge measurements. — Made by wading near reference point. 

Channel and control. — Concrete weir box. 

Accuracy. — Stage-discharge relation permanent. Rating curve well defined. Gage 
read to half-tenths daily. Daily discharge ascertained by applying daily gage 
height to rating table. Records good. 

The intake of this canal is on San Gabriel River about 600 feet above gaging station 
of the United States Geological Survey on San Gabriel River near Azusa. Water is 
used to augment the irrigation supply obtained from the tailrace of the Southern 
California Edison Co.'s power plant and to provide a supply if the water is shut out of 
power canal. 

Discharge measurements of tunnel diversion tiear Azusa, Calif., for 1916-1918. 



Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


Date. 


Madeby- 


Gage 
height. 


Dis- 
charge. 


1916. 
May 31 


J.C.Dort 


Feet. 


Sed.-fi. 
36 
54 
48 
16 
12 
7.6 
1.2 
.7 

33 : 

20 


1918. 

May 28 

Apr. 7 
13 
19 

May 1 
10 
17 
18 
24 

June 5 
6 
15 
21 


F.C.Ebert 


Feet. 


Sec.-ft. 
28 


June 5 


F. C. Ebert 




do 

H. J. Tompkins 


1.36 


22 


10 


J.C.Dort 




40 


30 


H. J. Tompkins 




Sopp and Tompkins 

F.C.Ebert 


i.29 
1.24 
1.15 

1.24 
.98 
.95 
1.28 
1.37 
1.69 


25 


July 8 
12 


F. C. Ebert 




■ 28 


J.C.Dort 




do 

C, W. Sopp 


34 


21 


F. C. E bert 




30 


Aug. 12 


H. J. Tompkins 




Sopp and Tompkins... 
C. W. Sopp 


48 


F.C. Ebert .... 




49 


1917. 
Apr. 7 
25 


Ebert and Sopp 

F. C. Ebert 


28 
22 


H. J. Tompkins 




do 

H. J. Tompkins 


8.6 


May 17 


F.C.Ebert 




4.8 













Daily discharge, in second-feet, of tunnel diversion near Azusa, Calif., for the year ending 

Sept. 30, 1918. 



Day. 


Apr. 


May. 


June. 


Day. 


Apr. 


May. 


June. 


Day. 


Apr. 


May. 


June. 


1 




15 
20 
20 

20 
22 
25 
25 
40 


11 
35 
35 
12 

29 
29 
29 
■ 29 
32 


38 1 
37 
35 
32 
29 , 

26 i 
20 ! 

16 i 
16 

14' 


11 


45 
CO 
40 
29 

10 

7 
7 
35 
35 

42 


32 
32 
38 
38 
42 

42 
49 
49 
32 

35 


14 
12 
12 

8.5 
8.5 

8.5 

7 
6 
5 
4 


21 


23 
29 
29 
29 
29 

29 
29 
37 
35 
35 


35 
38 
42 
46 

48 

49 
49 
46 
46 
43 
38 


3 


2 


12 «. 


22 


2 


3. . 


13 


23 




4 


14 


24 




5 


15 . 


25. 




6 


16 


26 




7 


17. 


27 




8 


18 


28 




9 


19 


29 




10 


20 


30 








31... 













Note.— No flov; Oct. 1 to Apr. 2 and June 23 to Sept. 30. Discharge for Apr. 3-6 and 8-12 estimated 
by observer; Jime 17-22 interpolated. 



SAN GABRIEL RIVER BASIN. 421 

Monthly discharge of tunnel diversion near Azusd, Calif., for the year ending Sept. 30, 1918. 



Discharge in second 


-feet. 


Maximum. 


Minimum. 


Mean. 


60 
49 
38 



12 



26.7 
37.8 
11.8 


60 





6.37 



Rvm-ofl 
(total in 
acre-feet). 



April , 

May , 

June 

The year. 



1,590 

2,320 

702 



4,610 



ROGERS CREEK NEAR AZTJSA, CALIF. 

LocATiON.^ — In southwest corner of sec. 14, T. 1 N., B. 10 W., half a mile above 
mouth of creek, and 2\ miles north of Azusa, Los Angeles County. 

Drainage area. — 6.4 square miles (measured on topographic map). 

Records available.— October 1, 1917, to September 30, 1918. (Discharge measure- 
ments only May 8, 1916, to June 11, 1917.) 

Gage. — Stevens water-stage recorder on left bank at mouth of canyon, one-half mile 
above junction with San Gabriel River. (See PI. XI, B, p. 236.) 

Discharge measurements. — Made by wading or from cable about 150 feet below 
gage. 

Channel and control. — Boulders, gravel and solid rock; fairly permanent. (See 
PI. XIII, A.) 

Extremes op discharge. — Maximum stage during year from water-stage recorder, 
5.25 feet at 11.30 p. m. March 10 (discharge, 332 second-feet); stream dry October 
1 to November 10 and July 20 to September 30. 

Diversions. — None above. 

Regulation. — None. 

Accuracy.— ^Stage-discharge relation not permanent throughout year. Rating curve 
well defined below 150 second-feet. Daily discharge ascertained by applying to 
the rating table mean daily gage height determined by inspecting recorder graph, 
except March 7, 10, anl 11, when hourly discharge was averaged. Records good. 

Discharge measurements of Rogers Creek near Azusa, Calif., for 1916-1918. 



Made by- 



Gage 
height 



Dis- 
charge. 



Made by— 



Dis- 
charge. 



1916. 
May 8 
June 10 
29 
July 12 
Aug. 12 

1917. 
Jan. 9 
Feb. 15 
Mar. 15 
Apr. 17 
25 
June 11 
Dec. 27 

1918. 
Feb. 19 
22 
23 



H. J. Tompkins. . 

J. C. Dort 

H. J. Tompkins. . 

J. C. Dort 

H. J. Tompkins. . 



H. J. Tompkins 

...do 

...do 

...do 

...do 

do 



E. Tompkins.. 



H. J. Tompkins. . 

F. C. Ebert 

do 



2.63 
1.66 



Sec-ft. 
2.9 
3.0 



2.6 
1.6 
5.9 
3.3 
1.7 
1.1 



1918. 
Feb. 25 



11 
15 
21 

23 
30 

Apr. 8 
13 
19 
26 

May 7 
21 

June 6 
21 

July 13 



C. W. Sopp 

F.C. Ebert 

H. J. Tompkins. 
F.C. Ebert.... 

C. W. Sopp 

do 

.....do 

F.C. Ebert 

do 

do 

H. J. Tompkins. 

do 

C. W. Sopp 

H. J. Tompkins. 

C. W. Sopp 

H. J. Tompkins. 

do 

...-do 

...-do 



Feet. 
1.71 
1.70 
1.18 
1.11 
2.37 
3.55 
2.32 
L90 
1.80 
1.60 
L46 
1.50 
1.29 
1.28 
1.18 
1.11 
1.00 
.82 
.72 



Sec-ft. 
8.4 
7.9 
1.6 
1.4 
27 
103 
27 
15 
12 
7.9 
5.1 
6.1 
3.6 
3.2 
2.5 
2.0 
.9 
.33 
.13 



422 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Rogers Creek near Azusa, Calif., for the year ending 
September 30, 1918. 



r>ay. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1 






0.2 
.2 
.1 
.1 
.1 

.1 
.1 
.1 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 


0.1 
.1 
.1 
.1 
.1 

.05 
.05 
.1 
.1 
. .1 

.1 
.1 
.1 
.2 

.2 

.1 
.1 
.1 
.1 
.1 

.1 
.1 
.1 
.1 
.2 

.2 
.1 
.1 
.1 
.1 
.1 


0.1 
.1 
.1 
.1 
.1 

.1 
.2 
.2 
.2 
.1 

.1 
.1 
.1 
.1 
.1 

.1 
.2 
1.2 
.4 

.8 

6.4 
28 
8 

3.2 
9 

7.5 
5.6 
3.2 


2.4 
1.8 
1.6 
1.3 
1.5 

5 
96 
32 
16 
45 

144 
89 
65 
41 
28 

22 
19 
16 
19 
17 

15 
13 
12 
12 
11 

10 
10 

9 

8.5 

8 

7.5 


7.5 
7.5 
7.0 
6.5 
6.0 

5.5 
5.5 
5.0 

4.8 
4.8 

4.6 
4.6 
5.5 
4.8 
4.3 

4.1 
3.8 
3.3 
3.0 
,3.0 

3.0 
3.0 
3.0 
3.0 
3.1 

3.1 
3.0 
2.8 
2.8 
2.6 


2.3 
2.2 
2.1 
2.2 
2.3 

2.4 
2.3 
2.3 
2.3 
2.3 

2.1 
2.0 
1.8 
1.7 

1.8 

1.8 
1.9 
1.9 
1.8 
1.8 

1.8 
1.7 
1.6 
1.7 
1.7 

1.7 
1.7 
1.8 
1.8 
1.7 
1.6 


1.6 
1.4 
1.2 
1.2 
1.2 

1.0 
1.0 
.9 

.8 
.8 

.8 
.8 
.7 
.7 
.6 

.6 
.6 
.5 
.6 
.6 

.5 
A 
.5 
.6 
.5 

.5 
.4 
.4 
.4 
.5 


0.6 
.4 
.3 
.3 
.2 

.2 
.2 
.2 
.1 
.1 

.1 
1 
.1 
.2 
.2 

.2 
.1 

.04 
.02 






2 










3 . 










4 










5 










6 










7 










8 










9 










10 










11 




0.05 
.1 
.3 
.3 
.3 

.3 
.3 
.2 
2 
.2 

.1 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 






12 








13 








14 








15 








16 








17 








18 








19 








20 








21 










22 










23 




■ 






24 










25 










26 










27 










28 










29 










30 










31 

























Monthly discharge of Rogers Creek near Azusa, Calif., for the year ending September SO, 

1918. 



Discharge in second- 
feet. 



Maxi- Mini- 
mum, mum. 



Run-off 
(total in 
acre- 
feet). 



Discharge in 
feet. 



Maxi- 
mum. 



Mini- 
mum. 



Run-off 
(total in 
acre- 
feet). 



November. 
December . 
January . . . 
February. . 

March 

April 



0.3 
.2 
.2 



144 
7.5 



0.0 
.05 
.05 
.1 

1.3 

2.6 



.110 
2.69 



8.21 
5.04 
6.76 
149 
1,540 
259 



May 

June 

July 

The year 



1.94 
.743 
.118 



119 
44.2 
7.26 



2,140 



Note.— No flow in months for which record is not given. 



SAN DIMAS CREEK NEAR SAN DIMAS, CALIF. 

Location.— In SW. \ NE. I sec. 25, T. 1 N., R. 9 W., at mouth of San Dimas Canyon, 
3 miles northeast of San Dimas, Los Angeles Connty. 

Drainage area.— 18.3 square miles (measured on topographic map). 

Elevation. — About 1,250 feet above sea level. 

Records available. — December 3, 1916, to September 30, 1918. (Discharge measure- 
ments only Apr. 14 to Sept. 4, 1916.) 

Gage. — 'Gurley graph water-stage recorder, on left bank at mouth of canyon, just above 
concrete control. (See PL XII, ^, p. 237.) 



U. S. GEOLOGICAL SURVEY 



WATER-SUPPLY PAPER 447 PLATE XIII 



^^ 




^i 








B^^pHK 


^m 




3 


S 


S-^^^m 




^^V 


Tf 


'^m 


1 


k 


|. :.V..- W*. ^-| 


HI *^'T- ' 




^S 


4. 






'- -^^-j^^' 


-^^^^ 


k. 












- 







^H 




^H9 




^^^^ 


H^^B 




l^^l^R^^Hp 


6' 


J 


^j^tej'^^c^^HB 




^^^ra 










^' ■'^'^'.^'' - .'j>^'-. "'^'"'''^^Sji^^^a 






*t 


'x\ 


' . ^ . .^ ...^^hI 




CONCRETE WELL AND HOUSE FOR WATER-STAGE RECORDERS. 

A. Rogers Creek near Azusa, Calif.; B. Fish Creek near Duarte, Calif.; C, Little Santa Anita Creek 
near Sierra Madre, Calif. 



U. S. GEOLOGICAL SURVEY 



WATER-SUPPLY PAPER 447 PLATE XIV 




A. CONCRETE WELL AND SHELTER ON SAWPIT CREEK NEAR MONROVIA, CALIF. 




B. DOUBLE CONCRETE-BOULDER CONTROL ON EATON CREEK NEAR PASADENA, 

CALIF. 




C. CONCRETE WELL, HOUSE, AND CONTROL ON ARROYO SECO NEAR PASADENA, 

CALIF. 



SAl^ GABRIEL RIVER BASII^. 



423 



Discharge measurements.— Made from cable 50 feet above gage or by wading at 
various sections above gage. 

Channel and Control. — Sand, gravel, and boulders; shifting. Control is low con- 
crete dam built across channel just below gage well. Janaary 18-23, 1918, this dam 
was raised about 2 feet. Gravel fills in above and below dam affecting stage-dis- 
charge relation. Left bank is steep and not subject to overflow; right bank is 
brushy and will be overflowed during high stages. 

Extremes OF DISCHARGE. — 1916-1918: Maximum stage recorded, 4.90 feet at 4 p. m. 
December 24, 1916 (discharge, 770 second-feet); stream dry during a part of Octo- 
ber and November, 1916. 

Diversions. — None above. The San Dimas Water Co. diverts water for irrigation 
150 feet below gage. 

Accuracy. — Stage- discharge relation not permanent, due to deposits of gravel above 
, and below concrete control. Rating curve fairly well defined. There were 
several short periods when water-stage recorder was not in operation; discharge 
interpolated. Daily discharge ascertained by applying to the rating table mean 
daily gage height determined by inspecting recorder graph, except March 12-18; 
April 5-17; and May 8 to June 27, 1918 when discharge was computed by shifting- 
control method. Records good. 

Cooperation. — San Dimas Water Co. furnished observer for water-stage recorder. 

Discharge measurements of San Dimas Creeh near San Dimas, Calif., for 1916-1918. 



Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1916. 
Apr. 14 
26 
May 13 


H. J. Tompkins 


Feet. 


13 

10 
9.1 
5.6 
4.4 
4.7 
1.5 
1.9 
5.2 
3.6 
8.6 

18 
5.0 

12 

81 

21 

22 

11 

10 
8.9 
6.0 
5.7 
5.5 
5.8. 
5.8 
.97 
.75 


1917. 

Sept. 18 
Oct. 22 
Dec. 7 

1918. 

Jan. 21 
25 

Feb. 18 
21 
22 
23 
25, 

Mar. 7 
15 
18 
20 
22 
29 

Apr. 4 
8 
18 

May 7 
17 
28 

Jime 28 

July 19 
26 

Sept. 4 


H. J. Tompkins 

do 

do 

C. W. Sopp 


Feet. 
.62 
.68 
.76 


Sec.-fi. 
.21 


do 

J.C. Dort 




.37 
1.5 


31 
June 16 


do 

do 






27 


H. J. Tompkins 




1.4 


July 12 


J.C. Dort 




E.Tompkins 


2.53 
2.68 
3.05 
3.85 
3.10 
2.95 
4.90 
3.80 
3.22 
3.32 
3.15 
2.90 
2.88 
2.76 
2.71 
2.67 
2.66 
2.68 
2.30 
2.20 
2.20 
2.18 


2.4 


Aug. 12 
Sept. 4 
Oct. 11 
Dec. 16 
30 


H. J. Tompkins 




C. W. Sopp 


3.3 


J.C. Dort 




F. C. Ebert 


7.1 


do 

do 

do 

J.C. Dort 


""l.bi 
1.80 

1.94 
L64 
L74 
2.27 
1.83 
1.80 
1.74 
1.74 
1.72 
1.66 
1.19 
1.15 
1.20 
1.18 
.82 
.78 


do 

do 

C. W. Sopp .. . . 


31 

9.7 
6 9 


1917. 
Jan. 20 


do 

H.J.Tompkins. 

C. W. Sopp 


302 
25 
17 


Feb. 15 


H.J.Tompkins 

J.C. Dort 


F. C. Ebert . . 


15 


20 


do 

do 

C. W. Sopp 


12 


22 
24 


do 

H.J.Tompkins 

do 

J.C. Dort 


6.8 
6.8 


28 
Mar. 7 


H. J. Tompkins 

C. W. Sopp 


4.1 

4 


12 

17 

Apr. 5 

19 


do 

H.J. Tompkins 

J. C. Dort 


do 

do 

do 

do 

do 

H. J. Tompkins 

Ellsworth and Ebert. 


3.8 
2.9 
2.8 

7 


26 

July 12 
29 


H.J.Tompkins 

do 

do 

do 

do 


.14 

.19 
«.l 



424 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of San Dimas Creek near San Dimas, Calif., for 19,16-1918.^ 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1916-17. 








8.5 
8.5 

11 

10 

8.5 

8.5 
8.5 
8.5 
8.5 
8.5 

8.5 
8.5 
8.5 
8.5 
9 

10 

8.5 

9 
24 
20 

15 
14 
12 
14 
13 

11 

7 

7 

6.5 

6.5 

6.5 


6 

6 

5.5 

5.5 

5.5 

5.5 
5.5 
5.5 
5.5 
5.5 

5.5 
4.9 
4.9 
4.9 
4.9 

4.9 
13 

8.5 

7 
13 

18 
58 
31 
24 
36 

29 
25 
19 


16 
13 
11 
11 
11 

11 
11 
11 
12 
11 

11 
11 
11 
11 
10 

10 
9 

8.5 
8.5 
7.5 

7.5 

7 

7 

6.5 

6.5 

6.5 
6.5 
6.5 
6.5 
6.5 
6.5 


6.5 
6.5 
6.5 
6.5 
6.5 

6.5 
6.5 
o6.5 
6.5 
6.5 

6 
6 
6 
6 
6 

8 

7 

6.5 

6 

5.5 

5 

5.5 
5.5 
6 
4.6 

5 
6 
8 
a7.5 
7 


6 

5.5 

5.5 

5.5 

4.6 

4.3 
4.3 
5.5 
6.5 
6.5 

5.5 
4.3 
4.3 

4.8 
4.8 

4.8 
4.6 

13 

12 

8.5 

7 

6 

7.5 

8 

8 

7.5 
5.5 
5.5 
5.5 
6.5 
6.5 


5 

4.8 

4.6 

4.6 

4.6 

4.6 
4.5 
4.0 
3.7 
a3.7 

a3.7 
3.7 
3.5 
3.2 
2.9 

2.4 
1.8 
1.6 
1.5 
1.5 

1.5 
1.5 
1.6 
1.7 
1.7 

1.7 
1.7 
1.6 
1.5 
1.4 


l!l 

i.o 

.9 

.8 

.8 

.8 

a. 8 

a. 8 
a. 8 
a. 8 
a. 8 
a. 8 

a. 8 

a. 8 

.8 

.8 
.7 
.7 


0.7 
.7 

.7 
.7 
.6 

.6 
.6 
.6 
.5 
.4 

a. 4 

0.4 

.4 

.4 

.4 

.4 
.4 
.3 
.3 
.3 

.3 
.3 
.3 
.3 
0.3 

0.3 
a. 3 
C.3 
a.3 
a. 3 
a.3 


0.3 


2 








3 


3 






5 
4.2 

3.7 

3.7 
3.6 
3.6 
3.6 
3.6 

3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.7 
250 
73 

23 
20 
15 

8.6 
8.5 
8.5 


3 


4 






.3 


5 






.3 


6 






.3 


7 






.3 


8... 






.3 


9 






.3 


10 






.4 


11 






.4 


12... 






,4 


13 






.3 


14 






' .3 


15 






a.3 


16 • 






0.3 


17 






0.2 


18 






.2 


19 






0.2 


20 






a. 2 


21 






a.3 


22 






0.3 


23 






0.3 


24 






0.3 


25. . 






a.3 


26 






a.3 


27 






c.3 


28 






0.2 


29.. 






0.2 


30 






a. 2 


31 


. .. 















a No gage-height record; discharge interpolated. 



1917-18. 
1 


0.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 

.3 
.3 
.3 
.3 
.4 

.4 
.4 
.3 
.3 
.3 

.3 
.3 
.3 
.3 
.3 

.3 
.3 
.3 
.3 
.3 
.3 


0.3 
.3 
.3 
.3 
.4 

.9 
.9 

.8 
.8 
.8 

.8 
.7 
.6 
.6 
.6 

.6 
.5 

.6 

.7 
.8 

.8 
1.0 
1.1 
1.3 
1.3 

1.3 
1.3 
1.3 
1.3 
1.2 


1.3 
1.3 
1.4 
1.4 
1.4 

1.4 
1.5 
1.4 
1.4 
1.5 

1.5 
1.5 
1.6 
1.7 
1.7 

1.7 
1.7 

1.6 
1.5 
1.5 

1:? 

1.7 
1.7 
1.7 

1.7 
1.7 
1.7 
1.7 
1.7 
1.7 


1.8 
1.8 
1.8 

1.8 
1.9 
1.8 
1.6 
1.5 

1.4 
1.6 
1.8 
2.1 
2.4 

1.9 

1.8 
1.7 
1.6 
1.6 
1.7 


1.7 
1.7 
1.7 
1.6 
1.5 

1.5 
1.9 
1.8 
1.7 
1.7 

1.4 
1.4 
1.5 
1.5 
1.5 

1.5 
1.9 
3.5. 
2.5 

2.6 

7 
29 
12 

6 

8 

10 
7.5 

5.5 


4.0 
3.8 
3.4 
3.1 
3.4 

9.5 
142 
54 
31 
37 

104 
80 
50 
31 

24 

25 
22 

18 
20 
18 

14 
12 
11 
11 

9.5 

9 

8.5 

8 

7.5 

6.5 

6.5 


7 

6.5 
6.5 
5.5 

5 

4.7 

4.4 

4.3 

4.4 

4.8 

4.9 

6 

5.5 

5 

4.8 
4.6 
4.1 
3.8 
3.8 

3.8 
4.0 
4.2 
4.7 
5 

5.5 
5.5 
4.8 
4.0 
3.7 


3.5 
3.1 
2.9 
3.0 
3.4 

3.5 
3.5 
3.8 
3.8 
3.6 

3.4 
3.2 
2.7 

2.6 

2.8 

2.9 
2.9 

2.7 
2.7 
2.8 

2.8 
2.8 
2.7 
2.6 
2,6 

2.6 
2.6 
3.1 
3.5 
3.4 
3.2 


3.0 

2.8 
2.7 
2.5 
2.3 

2.1 
1.9 
1.8 
1,7 
1.7 

1.8 
1.7 
1.6 
1.5 
1.5 

1.5 
1.4 
1.3 
1.3 
1.2 

1.1 
1.0 
1.0 
.9 

.8 

.8 
.7 
.7 
.7 
.7 


0.6 
.6 
.6 
.6 
.5 

.5 
.5 
.5 
.4 
.4 

.4 
.4 
.3 
.3 
.3 

.3 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 
.2 


0.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2- 
.2 
.2 

.2 
.2 
.2 
.2 
.3 

.3 
.4 
.3 
.2 
.2 

.2 

-.1 

.2 
.2 

.2 
.2 
.1 
.1 
.1 
.1 


ai 


2 




3 




4 








6 




7 




8 




9 




10. 




11 




12 . . 




13 




14 


.2 


15. . . 


.2 


16 


.2 


17. . .. 


.2 


18 


.2 


19 


,1 


20 


.2 


21 


.3 


22 


.3 


23 


.3 


24 


.4 


25 


.4 


26 


.5 


27 


.5 


28 


.6 


29.. 


.6 


30 


.6 


31 









Note.— No gage-height record Oct. 1-10, 14-21, 28-31; Nov. 1, 2, 11; Jan. 18-25; May 9-10, 19-21, 
June 1-7, 16-31; July 1-18; Aug. 3, 4, 25-30; and Sept. 15-17, 29-30— discharge estimated. 



SAN GABRIEL RIVER BASIN. 425 

Monthly discharge of San Dimas Creek near San Dimas, Calif., for 1916-1918. 



Month. 


Discharge in second- 
feet. 


Run-off 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Run-ofl 
(total in 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1916-17. 
December, 3-31 

January 

February 

March 


250 
24 
58 
16 

8 
13 

5 

1.4 

!4 


3.5 
6.5 
4.9 
6.5 
4.6 
4.3 
1.4 
.7 
.3 
.2 


16.7 
10.2 
13.1 
9.32 
6.24 
6.27 
2.86 
.99 
.42 
.29 


961 

627 

728 

573 

371 

386 

170 
60.9 
25.8 
17.3 


1917-18. 

October 

November 

December 

January 

February 

March 


0.4 
1.3 
1.7 
2.4 
29 
142 
7 

3.8 
3.0 
.6 
.4 
.6 


0.2 
.3 
1.3 
1.4 
1.4 
3.1 
3.7 
2.6 
.7 
.2 
.1 
.1 


.28 
.81 
1.57 
1.74 
4.32 
25.4 
4.93 
3.05 
1.52 
.33 
.20 
.24 


17.2 
48.2 
96.5 
107 


April... 


240 


May . . . 


1 560 




April 


293 


July... 


May... 


188 


August... 

September 




90.4 


July 


20.3 


August 

September 

The year.. 


12.3 
14.3 


The period. 








3,920 














142 


.1 


3.71 


2,690 



FISH CREEK NEAR DUARTE, CALIF. 

Location.— In SW. I SW. I sec. 15, T. 1 N., R. 10 W., about thi-ee-fourths mile above 
mouth of canyon and 4 miles northeast of Duarte, Los Angeles County. 

Drainage area. — 6.5 square miles (measured on topographic map). 

Elevation. — ^About 1,000 feet above sea level. 

Records AVAILABLE. —July 23 'to September 30, 1916, and July 28, 1917 to September 
30, 1918. 

GAGE.^Gurley graph water-stage recorder, installed July 28, 1917, on left bank three- 
fourths mile above mouth of canyon, at same site and datum as vertical staff. 
(See PI. XIII, B, p. 422.) 

Discharge measurements. — Made by wading near gage. 

Channel and control.— Gravel and boulders; apparently permanent. Both banks 
are high and not subject to overflow. A concrete control has been built at an out- 
crop of bedrock a short distance below gage. 

Extremes of discharge. — 1916-1918: Maximum stage recorded 4.50 feet at 4 p. m. 
March 10, 1918 (discharge, 330 second feet); minimum stage, 1.59 feet September 
12 and 13, 1918 (discharge, 0.1 second-foot.). 

Diversions. — None above. 

Regulation.— None. 

Accuracy.— Stage-discharge relation not permanent on account of changes in control. 
Rating curves fairly well defined. Staff gage read to hundredths once daily in 
1916. Daily discharge ascertained by appljdng to the rating table mean daily gage 
height obtained by inspecting recorder graph or from staff records. Records good. 



426 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Discharge measurements of Fish Creek near Duarte, Calif., for 1916-1918. 



Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 

charge. 


1916. 
Apr. 12 
24 

May 2 
19 


H. J. Tompkins 


Feet. 


sec,,. 

7.2 
6.2 
6.4 
2.7 
3.0 
1.6 
1.8 
2.4 

4.4 

2.8 

21 

8.6 

5.6 

3.7 

3.2 

2.3 

.3 

.35 

.65 


1917. 
Dec. 19 

1918. 

Jan. 18 

Feb. 7 
21 
23 
25 

Mar. 6 
7 

20 
21 
29 
30 

Apr. 4 
18 

May 3 
21 

June 7 
21 

July 13 
27 


E. Tompkins 


Feet. 
1.78 

1.82 
1.86 
2.71 
2.37 
2.48 
2.28 
4.00 
2.52 
2.48 
2.26 
2.22 
2.22 
2.11 
2.03 
2.00 
1.92 
1.S2 
1.72 
1.70 


Sec.-ft. 
0.5 


do 

do 

J. C. Dort 


'.'.'.'.'.'/.'. 


Ebert and Sopp 

H. J. Tompkins 

F.C. Ebert 


.65 


June 10 
28 


do 

H.J.Tompkins 


"'b'.hi' 

.86 
.80 
.89 

1.02 
.90 
1.70 
1.18 
1.06 
.94 
.96 
.88 
.53 
1.74 
1.82 


.75 
21 


July 14 


J. C. Dort 


do 

H.J. Tompkins 

C. W. Sopp 


8.4 


Oct. 25 


H. J. Tompkins 


14 


Dec. 5 


do 

H. J. Tompkins. 


6.9 


1917. 


do 

F.C. Ebert 


231 
18 


Jan. 9 


C W. Sopp . . . 


15 


Feb. 15 


do.... 

do 

do 

do 

do 

do 

do 

do 

E. Tompkins 

H. J. Tompkins.. 




F.C. Ebert 


7.2 


28 
Mar. 15 


H.J. Tompkins 

C. W. Sopp 


7.0 
5.3 


Apr. 17 
25 


do 

do . .. 


4.0 
2.3 


May 26 
June 11 


do 

... do 


1.9 
1.4 


Julj 28 
Oct. 15 
Nov. 8 


H. J. Tompkins 

do 

do 


.42 
.16 
.15 



Daily discharge, in second-feet, of Fish Creek near Duarte, Calif., for 1916-1918. 



Day. 


July. 


Aug. 


Sept. 


Day. 


July. 


Aug. 


Sept. 


Day. 


July. 


Aug. 


Sept. 


1916. 
1 




a 1.0 
.9 
.9 

a 1.0 
1.2 

1.1 

1.0 

o 1.0 

1.0 

1.2 

1.2 
1.1 
1.1 
1.2 

a 1.3 

1.4 
1.4 
a 1.4 
1.5 
1.4 


a 0.8 
.9 
.9 
.9 

«1.0 

1.0 
1.0 
a 1.0 
.9 
1.0 

1.0 
a .9 

.8 

.8 

a .8 

.8 
.8 
.9 

a .8 
.8 


1916. 
21 




1.3 
a 1.2 

1.0 

.9 

a .9 

.9 
.9 
.9 
a .9 
.9 
.8 

.3 
.3 
.3 
.2 
.2 

.2 
.2 
.2 
.2 

.2 


0.9 
a 1.0 
1.2 
1.2 
1.1 

a 1.2 

1.2 

.9 

6 .8 

6 1.5 

.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 

'.2 


^ 1917. 
11 




0.3 
.3 
.3 

.2 
.2 

.2 
.2 
.2 
.2 

.2 

.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 
.2 


0.2 


2 




22 




12 




.2 


3 




23 


1.6 
a 1.6 
a 1.5 

1.5 
a 1.4 
1.3 
1.2 
1.2 
1.1 


13 




2 


4 




24 


14 




.2 


5 




25 


15 




.2 


6 




26 „. 


16 . 




.2 


7 




27 


17 




.2 


8 




28 


18 




.2 


9 




29 . 


19 




.2 


10 




30 


20 




.2 






31 


21 






11 


1917. 
1 


.2 


12 




22 




.2 


13 




23 




.2 


14 




2 




24 




.2 


15 




3 




25 




.2 






4 




26 






16 


5 




.2 


17 




6 




27 




.2 


18 




28 


0.3 
.3 
.3. 
.3. 


.2 


19 




7 




29 . -. 


.2 


20 




8. 




30 


.2 






9 




31 






10 

















a No gage-height record; discharge interpolated. 

b No gage-height record; discharge estimated from rainfall records; 



SAI^ GABRIEL RIVER BASIN. 



427 



Daily discharge, in second-feet, of Fish Creek near Duarte, Calif., for 1916-1918- 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1917-18. 

1 

2. . 


0.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.3 
.3 

.3 
.3 
.3 
.3 
.3 

.4 
.4 
.4 
.2 
.2 

.1 
.1 
.1 
.1 
.1 

.1 
.2 
.2 
.3 
.3 
.3 


0.2 
.1 
.1 
.1 
.2 

1.3 

.8 
.6 
.6 
.6 

.5 
.5 
.5 
.5 
.5 

.5 

!5 
.5 
.5 

.5 
.5 
.5 
.5 
.6 

.7 
.7 
.6 
.6 
.6 


0.6 

.6 

.7 
.7 
.7 

.6 
.6 
.6 
.6 
•6 

.6 
.6 
.5 
.5 
.5 

.5 
.5 
.5 
.5 
.5 

.5 
.5 
.5 
.5 
.5 


0.4 

.5 

^5 
.6 
.7 

.7 
.6 
.5 
.6 
.6 

.6 
.6 
.6 
.6 
.5 

.5 
.5 
.5 
.5 

.6 

.7 
.7 
.6 
.6 
.6 
.6 


0.6 
.6 
.6 
.6 
.6 

.6 
1.0 
.9 

.8 
.7 

" .6 
.6 
.6 

.7 

.7 

.7 
1.3 
2.9 
1.3 
2.3 

10 
85 
13 
6.5 
17 

11 

7 
5.5 


4.1 
3.2 
3.0 
2.6 
3.1 

7.5 
151 
43 
20 

84 

193 
137 

98 
47 
34 

23 
19 
16 
24 
18 

16 
12 
12 
10 
9.5 

9 

8.5 

8 

7.5 

7 

6.5 


6.5 
6.5 
6.5 
6.5 
6 

6 

5.5 

5.5 

5 

4.9 

4.7 
4.5 
4.3 
4.1 
3.8 

3.6 
3.4 
3.4 
3.2 
3.2 

3.2 
3.2 
3.4 
3.4 
3.2 

3.4 
3.1 
3.0 
2.8 
2.6 


2.4 
2.0 
2.0 
1.9 
2.2 

2.4 
2.2 
2.2 
2.2 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
2.0 
1.9 
1.9 
1.9 

1.9 
1.9 
1.7 

1.8 
1.8 

1.8 
1.9 
1.9 
1.9 
1.8 
1.7 


1.7 
1.6 
1.4 
1.5 
1.4 

1.3 
1.1 
1.1 
1.0 
1.0 

1.0 
.8 

.7 
.7 
.7 

.7 
.6 
.5 
.5 
.6 

.7 
.5 
.5 
.6 
.7 

.7 
.5 
.5 
.5 
.5 


0.6 
.6 
.3 
.3 
.2 

.2 
.2 
.2 
.2 
.2 

.1 
.2 
.3 

.4 
.4 

.3 
.2 
.1 
.1 
.1 

.1 
.1 
.1 
.1 
.1 

.1 
.2 

!l 
.1 


0.1 

.2 
.2 
.2 
.2 
.1 


0.1 


3. 




4.. '. 




5. . 




6 




7 . 




8 




9.. . 




10 




11 




12 




13 




14 




15 




16 




17 




18 


.2 


19 


.2 


20 


.3 


21 


.3 


22 


.2 


23 


.2 


24 


.2 


25 


.2 


26 


.1 


27 


.2 


28 


.3 


29 


.2 


30 


.2 


31 . 









Note. — No gage-height record Oct. 4-14 and Dec. 9; discharge interpolated. Indirect method for shifting 
control used Feb. 21. 

Monthly discharge of Fish Creek near Duarte, Calif, for 1916-1918. 



« 


Discharge in second-feet. 


Run-off 
(total 

in 
acre- 
feet). 


Month. 


Discharge in second-feet. 


Run-oflf 

(total 


Month. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


in 
acre- 
feet). 


1916. 
July 23-31 


1.6 
1.5 
1.5 


1.1 

.8 
.8 


1.38 
1.09 
.96 


25 
67 
57 


1917-18. 
October 


0.4 
1.3 
.7 
.7 
85 
193 
6.5 
2.4 
1.7 
.6 
.2 
.3 


0.1 
.1 
.4 
.4 
.6 
2.6 
2.6 
1.7 
.5 
.1 
.1 


0.23 
.51 
.53 
.55 

6.20 
33.4 

4.28 

1.98 
.85 
.21 
.11 
.15 


14.1 


August . . 


November 

"December 


30.3 


September 


32.6 
33.8 
344 


The period. 








149 


February 

March 








2,050 
255 


1917. 


0.3 
.3 
.2 


0.3 
.2 
.2 


0.30 
.21 
.20 


2.4 
12.9 
11.9 


April . 


July 28-31 


May :::::::::::: 


122 






50.6 


September 


July 


12.9 






6.8 
8.9 


The period. 








27.2 


September 

The year 














193 


'' 


4.10 


2,960 



SAWPIT CREEK NEAR MOMHOVIA, CALIF. 

Location. — In SE. J NW. i sec. 13, T. 1 N., R. 11 W., at highway bridge just below 
junction of two main branches, about 2 miles north of Monrovia, Los Angeles 
County. 

Drainage area. — 5.3 square miles (measured on topographic map). • 

Elevation. — About 1,050 feet above sea level. 

Records available. — November 8, 1916, to September 30, 1918. 



428 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Gage. — Gurley graph water-stage recorder, with concrete well and shelter, on Ifeft 
bank at east end of highway bridge. (See PI. XIV, A.) 

Discharge measurements. — Made from bridge or by wading near gage. 

Channel and control. — Coarse gravel and boulders; apparently permanent. 
Channel is straight for 25 feet above gage and curved below; both banks are high. 
A concrete boulder dam was built across channel just below gage for an artificial 
control. Lowest point in this control is at elevation 0.70 foot on gage. 

Extremes of discharge. — 19] 6-1918: Maximum stage recorded by water-stage 
recorder, 2.65 feet at midnight March 10-11, 1918 (discharge from extension of 
rating curve, 256 second-feet) ; stream dry for several months each year. 

Diversions. — Part of the water supply for Monrovia is obtained from the two branches 
of Sawpit Creek above gage. (See record for Monrovia pipe line near Monrovia, 
Calif., p. 43.) 

Regulation. — None. 

Accuracy. — Stage-discharge relation not permanent. A fairly well-defined rating 
curve, averaging all measurements obtained at this station, was used throughout 
1918. The curve for 1917 was fairly well defined. Daily discharge ascertained 
by applying to the rating table mean daily gage heights determined by inspecting 
recorder graph, except for December 24, 1916, and March 7, 10, and 11, 1918, 
when hourly discharge was averaged. Records for 1917 fair; for 1918 good. 

Cooperation. — City of Monrovia furnished observer for water-stage recorder. 



Discharge measurements of Savrpit Creek near Monrovia, Calif., for 1916-1918. 



Made by- 



Gage 
height. 


Dis- 
charge. 


j 

Date. 


Feet. 


Sec.-ft. 


1918. 


1.05 


2.6 


Feb. 25 

Mar. 11 

15 


1.16 


6.4 


20 


.96 


1.4 


29 


1.05 


3.4 


Apr. 4 


1.75 


46 




1.75 


45 




1.32 


9.5 




1.08 


3.6 




1.03 


2.3 





Made by— 



Gage 
height. 



Dis- 
charge. 



1916. 
Dec. 30 

1917. 

Jan. 20 

Feb. 15 

20 

22 

22 

24 

Mar. 15 

.28 



J. C. Dort 

J. C. Dort 

H. J. Tompkins. 

J. C. Dort 

....do 

....do 

....do 

H. J. Tompkins. 
do 



F.C. Ebert.. 
E. Tompkins 
C. W. Sopp. . 
F.C. Ebert.. 

do 

C. W. Sopp.. 



Feet. 
1.02 
1.74 
1.20 
1.20 
1.05 
1.07 



Sec.-ft. 
1.5 
54 
7.0 
5.6 
1.6 
2.3 



Daily discharge, in secondfeet, of Sawpit Creek near Monrovia, Calif., for 1916-1918. 



Day. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


Day. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


1916-17. 
1 




0.9 
1.1 
3 2 
3.0 
2.7 

2.3 
2.1 
2.1 
2.1 
2.1 

2.1 
2.1 
2.1 
2.1 
2.1 


3.0 
3.4 
40 
3.4 
3.0 

2.9 
2.9 
2.9 
2.9 
2.7 

2.5 
2.7 
2.5 
2.5 
2.9 


2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.3 
1.5 
1.5 

1.5 
1.6 
1.6 
1.6 
1.5 


8.5 
8 

6.5 
6 _ 

4.8 
4.0 
3.6 
4.0 
4.2 

4.0 
4.0 
4.0 
3.8 
3.6 


2.1 
2.1 
2.0 
1.5 

.8 

.2 
.0 
.0 
.0 
.0 

.0 
.0 
.0 
.0 

.0 


1916-17. 
16 


1.3 
1.1 

.9 
1.1 
1.0 

.8 
.8 
.9 
.9 
.9 

1.0 
1.0 
.9 
.9 
.9 


2.1 
2.1 
2.1 
2.1 
2.1 

2.1 
2.1 
2.5 

74 

14 

6.5 
4.5 
4.0 
4.0 
3.0 
3.0 


3.0 

2.9 

3.2 

5 

5.5 

4.5 
4.0 
3.8 
3.6 
3.4 

3.2 
2.9 
2.9 

2.7 
2.7 
2.7 


1.7 
2.5 
2.3 
2.3 
3.8 

14 
36 
17 
12 
17 

14 
10 
9.5 


3.4 
3.2 
3.2 
3.0 
3.0 

3.0 
3.0 
2.9 
2.9 
2.9 

2.9 
2.7 
2.7 
2.5 
2.3 
2.1 


.0 


2 




17 


1.4 


3 




18 


2.1 


4 




19 


2.1 


5 




20 


.7 


6 :... 




21 




7 


22 




8 


2.1 
2.1 
2.1 

2.1 
2.1 
2.1 
2.1 

1.6 


23 




9...:.:. . 


24 




10 


25 




11 


26. 




12 


27 




13 


28 




14 


29 




15 


30 






31 













Note.— No flow Apr. 21 to Sept. 30. 



SA^ GABRIEL RIVER BASIN. 429 

Daily discharge ^ in second-feet, of Sawpit Creek near Monrovia, Calif ., for 1916-1918, 



Day. 


Feb. 


Mar. 


Apr. 


Day. 


Feb. 


Mar. 


Apr. 


Day. 


Feb. 


Mar. 


Apr. 


1918. 
1 




1.4 
1.4 
1.4 
1.4 
1.4 

2.1 
49 
14 

7 
22 


3.2 
3.4 
3.2 
2.9 
2.5 

2.3 
2.3 
2.1 
1.1 
.4 


1918. 
1] 




88 
34 
21 
12 
9 

8.5 

8.5 

8 

8 

6.5 


.4 

.4 
1.8 
2.0 
1.8 

.8 
.05 
.03 
.04 


1918. 
21. 




5 

4.6 

3.7 

3.4 

3.4 

3.2 
3.0 
2.9 
2.5 
2.7 
2.9 




2. . . . 




12 




22 


8.2 
2.5 
2.1 
2.9 

1.5 
1.4 
1.6 




3. 




13 





23. 




4 




14. 




24. 




5 




15 




25 




6 




16. 




26 . 




7 




17 




27 




8. - . - 




18 




28 




9 




19 




29 




10 




20. 




30. 














31 















Note.— No flow Oct. 1 to Feb. 21 and Apr. 20 to Sept. 30. 

Monthly discharge of Sawpit Creek near Monrovia, Calif, for 1916-1918. 





Discharge in second-feet. 


Run-off 

(total 

in 

acre- 
feet). 


Month. 


Discharge in second-feet. 


Run-off 
(total 


Month. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean . 


in 

aere- 
feet). 


1916-17. 
November 8-30.. 
December 


2.1 
74 
5.5 

36 
8.5 
2.1 


0.8 
.9 
2.5 
1.5 
2.1 
.0 


1.33 
5.24 
3.23 
6.17 
3.88 
.50 


60.7 
322 
199 
313 
239 

29.8 

1,190 


1917-18. 

February 

March 


8.2 
88 
3.4 


.00 
1.4 
.00 


.721 
11.0 
1.02 


40.0 
676 


January 


April 


60 7 


February 

March 


The year .... 




88 


.00 


LOS 


777 


April 








The period . . 





















Note.— No flow May to December, 1917, January, 1918, and May to September, 1918. Record for 1917-18 
represents full year. 

Combined daily discharge, in second-feet, of Sawpit Creek and Monrovia pipe line near 
Monrovia, Calif., for 1916-1918. 



Day. 



9.. 

10.. 

11.. 
12.. 
13.. 
14.. 
15.. 



18.. 
19.. 
20.. 
21.. 
22.. 
23.. 
24.. 
25.. 



30-. 
31.. 



Oct. Nov. Dec. Jan. Feb. Mar. Apr. May. June. July. Aug. Sept. 



3.8 
3.8 
3.8 
3.8 
3.8 
3.8 
3.8 
3.5 

3.5 
3.3 
3.1 
3.3 
3.2 
3.0 
3.0 
3.1 
3.1 
3.1 

3.2 
3.2 
3.1 



3.1 
3.3 
5.5 
4.7 
4.4 
4.0 
3.8 
3.8 
3.8 
3.8 
3.8 



3.8 
3.8 
3.8 
3.8 
3.8 
3.8 



4.2 

76 

16 
8 
6 

5.5 
5.5 
4.5 
4.5 



4.4 
4.4 
4.4 
4.4 
4.2 
4.0 
4.2 
4.0 
4.0 
4.4 
4.5 
4.4 
4.7 
6.5 
7 

6 

5.5 

5.5 

5 

5 

4.8 

4.5 

4.4 

4.2 

4.2 

4.2 



4.0 
4.0 
4.0 
4.0 
4.0 

4.0 
4.0 
4.0 



3.7 
3.8 
3.8 
3.8 
3.6 
3.5 
4.0 
3.8 
3.8 
5.5 

16 

38 

19 

14 

19 

16 
12 
11 



7.5 
7 

6.5 

5.5 
5.5 



5.5 

5.5 

5.5 

5.5 

5.5 

5 

4.9 

4.9 

4.7 

4.7 

4.7 

4.7 

4.6 

4.6 

4.6 

4.6 

4.4 

4.4 

4.2 

4.3 

4.5 



4.5 

4.7 

5 

4.9 

4.5 

3.8 

3.4 

3.6 

3.9 

3.7 

3.4 
3.4 
3.4 
3.4 
3.4 
4.0 
4.2 
4.2 
4.2 
3.3 
3.1 
3.7 
3.9 
3.6 
3.4 
3.7 
4.0 
4.6 
4.0 
3.7 



3.4 
3.4 
3.4 
3.4 
3.1 

3.1 
3.1 
3.4 
3.6 
3.4 
3.1 
3.1 
3.1 
3.1 
3.0 

2.8 
3.1 
3.4 



3.4 
3.4 
3.4 
3.4 
3.4 
3.4 
2.7 
2.6 
2.7 
2.7 
2.8 



3.1 
3.1 
3.1 
3.1 
3.1 

3.0 
2.8 
2.8 
2.8 
2.8 
2.8 
2.7 
2.6 
2.5 
2.5 

2.4 
2.4 
2.4 
2.2 
2.4 
2.2 
2.2 
2.2 
2.2 
2.2 

2.2 
2.2 
2.1 
2.1 
2.1 



2.0 
2.0 
2.0 
2.0 
2.0 
2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
1.9 



1.8 
1.8 
1.8 
1.8 
l.S 
1.8 
1.8 
1.7 
1.7 
1.7 
1.7 
1.7 



1.6 
1.6 
1.6 



1.6 
1.6 
1.6 
1.6 



1.6 
1.6 
1.6 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.6 
1.6 
1.5 
1.5 
1.5 



430 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Combined ( 



' discharge, in second-feet, of Sawpit Creek and Monrovia pipe line near 
Monrovia, Calif., for 1916-1918 — Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1917-18. 
1 


1.4 
1.4 
1.4 
1.4 
1.4 
1.4 
1.4 
1.4 
1.4 
1.4 

1.4 
1.4 
1.5 
1.6 
1.6 

1.7 
1.7 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 


1.5 
1.5 
1.5 
1.5 
1.5 
1,9 
1.7 
1.7 
1.6 
1.6 

1.5 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 


1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 
1.5 


1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.6 
1.6 


1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 
1.5 
1.5 
1.5 
1.5 
1.9 
1.6 
1.8 

1.9 
10 
4.0 
3.4 
5 

3.7 
3.0 
3.2 


3.0 
3.0 
3.0 
2.9 
2.9 
4.0 

51 

15 
8 

23 

89 

35 

22 

13 

11 

12 

12 

11 

11 
8 

6.5 

6.5 

6 

6.5 

6.5 

6 

5.5 

5.5 

5.5 

5.5 

5.5 


5.5 
5.5 
5.5 
4.9 
4.5 

4.4 
4.7 
4.5 
3.9 
3.7 
3.7 
3,7 
4.4 
4.1 
3.9 

3.4 
3.0 
3.0 

2.8 
2.8 
2.8 
2.8 
2.8 
3.3 
3.1 
3.1 
3.1 
2.8 
2.8 
2.8 


2.7 
2.7 
2.7 
2.7 
2.6 
2.6 
2.6 
2.6 
2.6 
2.6 
2.6 
2.4 
2.4 
2.4 
2.4 
2.7 
2.6 
2.5 
2.4 
2.4 

2.4 
2.4 
2.4 
2.4 
2.1 

2.1 
2.1 
2.1 
2.4 
2.1 
2.1 


2.1 
2.1 
2.1 
2.1 
2.1 
2.0 
2.0 
1.9 
1.9 
1.9 
2.1 
2.1 

\l 

1.8 

1.8 
1.8 
1.7 
1.7 
1.7 
1.7 
1.7 
1.7 
1.7 
1.7 
1.7 
1.7 
1.6 
1.6 
1.6 


1.7 
1.6 
1.6 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.4 


1.3 
1.3 
1.3 
1.3 
1.3 

1.3 
1.3 
1.3 
1.3 
1.3 

1.3 
1.3 
1.3 
1.3 
1.4 
1.4 
1.4 
1.4 
1.4 
1.4 
1.4 
1.3 
1.3 
1.3 
1.3 

1.2 

1.2 
1.2 
1.2 
1.2 
1.2 


1.2 


2... 


1 2 


3 


1.2 


4 


1.2 


5 


1.2 


6 


1.2 


7 


1.2 


8 


1.2 


9 


1.2 


10 


1.2 


11 


1.2 


12 


1.2 
1.2 


13 


14 


1.5 


15 


1.4 


16 


1.4 


17 


1.4 


18 


1.3 


19 


1.3 


20 


1.3 


21 


1.3 


22 


1.3 


23 


1.3 


24 


1.3 


25 


1.3 


26 


1.3 


27... . 


1.5 


28 


1.4 


29... . . 


1.3 


30 


1.3 


31 









Note. — See pages 431, 432 for daily discharge of Monrovia pipe line. 

Combined monthly discharge of Sawpit Creeh and Monrovia pipe ^ 
Calif., for 1916-1918. 



'■ near Monrovia, 



1916-17, 
November. . . 
December... 

January 

February 

March 

A pril 

May 

June 

July 

August 

September... 



The period 



Discharge in second- 
feet. 



Maxi- 
mum. 



3.8 

76 
7 

38 

10 
5 

3.9 
3.1 
2.0 
1.8 

. 1.7 



Mini- 
mum. 



3.0 
3.1 
4.0 
3.5 
4.2 
3.1 
2.6 
2.1 
1.8 
1.7 



3.37 
6.97 
4.74 
7.99 
5.57 
3.89 
3.21 
2.54 
1.92 
1.73 
1.57 



Run-off 
(total in 
acre- 
feet). 



154 
429 
291 
444 
342 
231 
197 
151 
118 
106 



2,560 



1917-18. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 

June 

July 

August 

September... 

The year 



Discharge in second- 
feet. 



Maxi- 
mum. 



5.5 
2.7 
2.1 
1.7 
1.4 
1.5 



Mini- 
mum. 



1.4 
1.5 
1.5 
1.5 
1.5 
2.9 
2.8 
2.1 
1.6 
1.4 
1.2 
1.2 



Run-off 
(total in 
acre- 
feet). 



1.57 
1.51 
2.37 
13.1 
3.71 
2.45 
1.85 
1.44 
1.30 
1.28 



91.0 
95.2 
96.5 
92.8 

132 

805 

221 

151 

110 
88.5 
79.9 
76.2 



MONROVIA PIPE LINE NEAR MONROVIA, CALIF. 

Location. — Near southeast corner sec. 14, T. 1 N., R. 11 W., 300 feet above settling 
reservoir at mouth of Sawpit Canyon, and 1^ miles north of Monrovia, Los Angeles 
County. 

Records available. — May 18, 1916, to September 30, 1918. 

Gage. — Vertical staff in weir box. 

Discharge. — ^Measured by two rectangular weirs with end contractions. Left weir, 
2.25 feet long; right weir, 2.26 feet long. Crest of left weir is at zero gage height; 
crest of right weir is 0.02 foot lower at one end. Weir table has been checked by 
current-meter measurements made at mouth of intake pipe in weir box. 



SAN GABRIEL RIVER BASHST. 



431 



Extremes of discharge. — 1916-1918: Maximum stage recorded, 0.49 foot May 18-19, 
1916 (discharge, 5.0 second-feet); minimum stage, 0.18 foot August 26 to Septem- 
ber 13, 1918 (discharge, l,.l second-feet). 
Accuracy. — Stage-discharge relation considered permanent since conditions of back- 
water for any stage are probably constant. Gage read to hundredths twice daily. 
Daily discharge ascertained by applying mean daily gage height to rating table. 
Records excellent. 
Cooperation. — Gage-height record furnished by city of Monrovia. 

The Monrovia pipe line furnishes part of the water supply of Monrovia. It obtains 
its water from two branches of Sav/pit Creek. Most of this water is collected by tun- 
nels driA^en into the sides of the canyon. 
The following discharge measurement was made by J. C. Dort: 
May 19, 1916: Gage height, 0.49 foot; discharge, 5.1 second-feet. 



Daily 



of Monrovia pipe line near Monrovia, Calif .,Jor 1916-1918. 



Day. 



12.. 
13.. 
14.. 
15.. 



May. June. July. Aug. Sept. 



4.4 
4.4 
4.4 
4.2 
4.2 
4.2 
4.2 
4.2 



4.2 
4.2 
3.9 
3.9 
3.9 



3.6 
3.6 
3.6 
3.6 
3.6 

3.4 
3.4 
3.4 
3.3 
3.3 
3.3 
3.3 
3.3 
3.3 
3.3 



2.7 
2.7 
2.7 
2.7 
2.7 
2.7 
2.7 
2.7 
2.7 
2.7 



2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.4 
2.4 



Day. 



May. June. July. Aug. Sept. 



5.0 
a 5. 

4.8 

4.7 
4.7 
4.7 
4.7 
4.7 
4.7 
4.6 
4.4 
4.4 
4.4 
4.4 



3.9 
3.9 
3.9 
3.9 
3.9 
4.0 
3.9 
3.9 
3.9 
3.6 
3.6 
3.6 
3.6 



3.3 
3.3 
3.3 
3.3 
3.3 
3.3 
3.3 
3.0 
3.0 
3.0 
3.0 
3.0 
3.0 
3.0 
3.0 
3.0 



Day. 



7.. 

8.. 
9.. 
10.. 

11.. 
12.. 
13.. 
14.. 
15-. 



18.. 
19.. 
20.. 



23.. 
24.. 
25-. 



27.. 
28.. 
29.. 
30.. 
31.. 



2.4 

1.8 
1.8 



1.9 
1.9 
1.9 

1.9 
1.9 



1.9 

1.8 
1.7 
1.7 
1.7 

1.7 
1.7 
1.7 
1.7 
1.7 

1.7 
1.7 
1.7 
1.7 
1.7 
1.7 



1.7 
1.8 
1.9 
1.9 
1.8 

1.7 

1.7 
1.7 
1.7 
1.7 

1.7 
1.7 
1.7 
1.7 
1.9 

2.2 
2.2 
2.2 
2.2 
2.2 

2.2 
2.2 
2.2 
2.2 

2.2 

2.2 
2.2 
2.2. 
2.2 
2.2 



2.2 
2.2 
2.1 
1.7 
1.7 

1.7 
1.7 
1.7 
1.7 
1.7 

1.7 
1.7 
1.7 
1.7 
1.7 

1.7. 
1.7 
1.7 
1.7 
1.7 

1.7 
1.7 
1.7 
2.1 
1.5 

1.5 
1.5 
1.5 
1.6 
1.5 
1.5 



1.5 
1.5 
1.5 
1.5 



1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.7 
2.1 

2.2 

2.2 
2.2 
2.2 
2.2 
2.1 



1.7 
1.7 
1.7 

1.7 
1.7 

1.7 
1.7 
2.0 
2.0 
1.7 

1.7 
1.7 
1.7 
1.7 
1.7. 

1.7 
1.7 
1.7 
1.7 
1.7 

1.7 
1.7 
1.7 
1.7 
1.7 

1.7 
1.7 
1.7 
1.7 
2.0 
2.4 



Apr. 



2.4 
2.6 
3.0 
3.4 
3.7 



3.4 
3.6 
3.9 
3.7 

3.4 
3.4 
3.4 
3.4 
3.4 

4.0 
2.8 
2.1 
2.1 
2.6 

3.1 
3.7 
3.9 

3.6 
3.4 

3.7 
4.0 
4.6 
4.0 
3.7 



May. 


June. 


July. 


3.4 


3.1 


2.0 


3.4 


3.1 


2.0 


3.4 


3.1 


2.0 


3.4 


3.1 


2.0 


3.1 


3.1 


2.0 


3.1 


3.0 


2.0 


3.1 


2.8 


2.0 


3.4 


2.8 


2.0 


3.6 


2.8 


2.0 


3.4 


2.8 


2.0 


3.1 


2.8 


2.0 


3.1 


2.7 


1.9 


3.1 


2.6 


1.9 


3.1 


2.5 


1.9 


3.0 


2.5 


1.9 


2.8 


2.4 


1.9 


3.1 


2.4 


1.9 


3.4 


2.4 


1.9 


3.9 


2.2 


1.9 


3.7 


2.4 


1.9 


3.4 


2.2 


1.9 


3.4 


2.2 


1.9 


3.4 


2.2 


1.9 


3.4 


2.2 


1.9 


3.4 


2.2 


1.9 


3.4 


2.2 


1.9 


2.7 


2.2 


1.8 


2.6 


2.1 


1.8 


2.7 


2.1 


1.8 


2.7 


2.1 


1.8 


2.8 




1.8 



a Gage not read; discharge estimated. 



6 Gage not read; discharge interpolated. 



432 SURFACE WATER OF PACIFIC SLOPE j SOUTHERN CALIFORNIA. 



Daily 



, in second-feet, of Monrovia pipe line near Monrovia, Calif ., for 1916- 
1918— GoJitiBued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1917-18. 
1 


1.4 
1.4 
1.4 
1.4 
1.4 

1.4 
1.4 
1.4 
1.4 
1.4 

1.4 
1.4 
1.5 
1.6 
1.6 

1.7 
1.7 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 
1.5 


1.5 
1.5 
1.5 
1.5 
1.5 

1.9 
1.7 
1.7 
1.6 
1.6 

1.5 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 


1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 
1.5 


1.5 
1.5 

1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.6 
1.6 


1.6 

\:l 

1.6 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 

1.6 
1.6 
1.6 
1.5 
1.5 

1.5 
1.5 
1.9 
1.6 

1.8 

1.9 
2.1 
1.5 
1.3 
2.1 

2.2 
1.6 
1.6 


1.6 
1.6 
1.6 
1.5 
1.5 

1.9 
1.7 
1.3 
1.2 
1.3 

1.3 
1.3 
1.2 
1.3 
2.4 

3.3 
3.1 
3.1 
3.0 
1.6 

1,7 
1.7 
2.4 
3.1 
3.1 

2.6 
2.4 
2.6 

2.8 
2.8 
2.8 


2.5 
2.1 
2.1 
2.0 
2.0 

2.1 
2.4 
2.4 
2.8 
3.3 

3.3 
3.3 
2.6 
2.1 
2.1 

2.6 
3.0 
3.0 

2.8 

2.8 

2.8 
2.8 
2.8 
3.3 
3.1 

3.1 
3.1 

2.8 
2.8 
2.8 


2.7 
2.7 
2.7 
2.7 
2.6 

2.6 
2.6 
2.6 
2.6 
2.6 

2.6 
2.4 
2.4 
2.4 
2.4 

2.7 
2.6 
2.5 
2.4 
2.4 

2.4 
2.4 
2.4 
2.4 
2.1 

2.1 
2.1 
2.1 

2.4 
2.1 
2.1 


2.1 
2.1 
2.1 
2.1 
2.1 

2.0 
2.0 
1.9 
1.9 
1.9 

2.1 
2.1 
1.9 
1.9 
1.8 

1.8 
1.8 

i!6 
1.6 
1.6 


1.7 
1.6 
1.6 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.4 


1.3 
1.3 
1.3 
1.3 
1.3 

1.3 
1.3 
1.3 
1.3 
1.3 

1.3 
1.3 
1.3 
1.3 
1.4 

1.4 
1.4 
1.4 
1.4 
1.4 

1.4 
1.3 
1.3 
1.3 
1.3 

1.2 
1.2 
1.2 
1.2 
1.2 
1.2 


1.2 


2 


1.2 


3 


1 2 


4 


1.2 


5 


1.2 


6 


1.2 


7 


1.2 


8 


1.2 


9 


1.2 


10 


1.2 


11 


1.2 


12 


1.2 


13 


1.2 


14 


1.5 


15 


1.4 


16.. 


1.4 


17 


1.4 


18.. 

19 


1.3 
1.3 


20 


1.3 


21 . ... . ... 


1.3 


22 


1.3 


23 


1.3 


24.. 


1.3 


25 


1.3 


26 


1.3 


27 


1.5 


28 


1 4 


29 


1.3 


30 


1.3 


31 









Monthly discharge of Monrovia pipe line near Monrovia. Calif., for 1916-1918. 



Month. 


Discharge in second- 
feet. 


Rim-ofi 
(total in 
acre- 
feet). 


Month. 


Discharge in second- 
feet. 


Run-off 
(totalin 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


acre- 
feet). 


1916. 

May 18-31 

June 


5.0 
4.4 
3.6 
2.8 
2.5 


4.4 
3.6 
3.0 
2.5 
2.4 


4.66 
3.98 
3.27 
2.69 
2.47 


129 
237 
201 
165 
147 


1916-17. 
August 

September 

The year. . 

1917-18. 

October 

November 

December 

January 

February 

March . 


1.8 
1.7 


1.7 
1.5 


1.73 
1.57 


106 
93.4 


July... . 


4.6 


1.5 


2.08 




August 


1,510 


September 


1.7 
1.9 
1.6 
1.6 
2.2 
3.3 
3.3 
2.7 
2.1 
1.7 
1.4 
1.5 


1.4 
1.5 
1.5 
1.5 
1.3 
1.2 
2.0 
2.1 
1.6 
1.4 
1.2 
1.2 


1.48 
1.60 
1.57 
1.51 
1.66 
2.09 
2.69 
2.45 
1.85 
1.44 
1.30 
1.28 




The period 








879 


91.0 










95.2 


1916-17. 

October 

November 

December 


3.4 
2.2 
2.2 
1.7 
2.2 
2.4 
4.6 
3.9 
3.1 
2.0 


1.7 
1.7 
1.5 
1.5 
1.5 
1.7 
2.1 
2.6 
2.1 
1.8 


1.91 
1.98 
1.72 
1..54 
1.76 
1.75 
3.39 
3.21 
2.54 
1.92 


117 

118 

106 
94.7 
97.7 

108 

202 

197 

151 

118 


96.5 
92.8 
92.2 
129 


April 


160 


January 


mSv 


151 


February 

March 


June... 


110 


July 










August 

September 

The y^ar. . 




May 


79.9 




76.2 


July 


3.3 


1.2 


1.74 


1,260 





SAN GABRIEL RIVER BASIN. 
MISCELLANEOUS MEASUREMENTS. 



433 



Measurements of stream flow in the San Gabriel River basin at 
points other than those at which gaging stations have been main- 
tained are recorded in the following table : 

Miscellaneous discharge measurements in San Gabriel River drainage basin for 1896-1917, 



Dale. 


Stream. 


Tributary to — 


Locality. 


Dis- 
charge. 


JyfQy __ 1895 


San Gabriel River 

do 


Pacific Ocean 


Above Iron Fork 


Scc.-ft. 
7 7 


Dec. —,1896 


.do 


.do 


7 4 


Jan — 1897 


do 


do 


do 


2S 4 


Feb — 1897 


do .... 


. . do 


... do 


42 


Mar. —,1897 


do 


do 


do 


Apr. —,1897 
May -1897 
June —,1897 


do 


. . do 


do 


27.9 
24 7 


do 


. . do . . • - - - 


do 


do 


... do 


do 


25 4 


July —,1897 
Aug. -, 1897 
Sept. — , 1897 
Apr. —1900 
Aug. 23,1898 

Aug. 22,1912 

Sept. 1,1913 
June 17,1896 


.do 


do 


do 


17.8 


do 


do 


do 


16 4 


do 


.do 


.do 


16.5 


.do 


do 


do 


5 76 


.....do 

do 


do 

do 


Above junction with West 

Fork. 
Just above junction with West 

Fork of San Gabriel River, 

inNE.i sec. 29, T. 2N., R. 

9W. 
Diverting dam of Pacific Light 

& Power Corporation. 
Mouth of Vineland tunnel 


7.11 
21 


'^ 

do 

do 


.do 


55 


do 


1 54 


Do 


do 


2 1] 


Apr. 29,1897 
Do 


do 


do 


Mouth of Vineland tunnel.. . - - 

Same; shaft No. 2 

Mouth of Vineland tunnel, at 
head of fiume, between shafts 
Nos. 3 and 4. 

Same; right fork, above shaft 
No. 4. 

Mouth of Vineland tunnel 

Azusa irrigators' development 
tunnel. 

Same place: river being divert- 
ed through power company 's 
conduit. 

Irrigators' development tun- 
nel, pumped; additional. 

Junction of East and West 
forks. 

Head works of San Gabriel 
Power Co. 


2 23 


do 


do 


2 11 


Do 


do 


do 


2 13 


Do 


do 


do 


1.07 

1.88 
3.99 

.22 

.3 

9.87 
8.42 


May 24, 1897 
June 17,1896 


do 


do 


do 


.-do 


Aug. 24,1898 
Do-- 


do 


do 

do 


Aug. 23,1898 
Do- 


do 


do 


do 


do 


July 3, 1898 


do 


do 


Do 


do 


do 


Channel No. 2; Baldwin ranch 
house road. 

Channel No. 3; Campers sta- 
tion. 

El Monte Bridge 


8.79 
3.36 
50 


Do. 


do 


do 


Apr. 15,1903 


-....do 

do 


-----do 

do 


Apr. 26,1903 


do 


2 29 


May 26,1903 


do 


.do 


do 



47 


Apr. 13,1905 


do 


do 


do 


Apr. 15,1903 
May 26,1903 


do 

do 


-....do 

do 


Lexington wash at El Monte. . 
Total at head of Lexington 

wash. 
Upper road crossing, Duarte 

to Azusa. 
Opposite Alamitos 


3 
66 

264 

311 


Apr. 14,1903 
Apr. 23.1903 


do 


do 


do.... 

do 


.do 


Apr. 24,1903 
Do 


do 


Southern California Ry. at 

Rivera. 
Southern California Ry. at 

Studebaker. 

Whittier road crossing 

do 


365 

364 

106 
361 


do 


do 


Dec. 5, 1897 


do 


do 


Apr. 25,1903 


do 


do 


^ Do- 


do 


do --- . 


Road crossing east of Durfee's 

ranch. 
Mouth 


264 
5 6 


Nov. -, 1896 


Iron Fork of San Gab- 
riel River. ^ 
do I 


San Gabriel River 

do 


Dec. —,1896 


do 


3 


Jan. —1897 


.....do 


-....do 


do 


10 1 


Feb. —,1897 


.....do 


do 


do 


18 3 


Mar. —1897 


.....do 


do 


do 


18.9 



142131°— 21— wsp 447- 



-28 



434 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN" CALIFORNIA. 



M'scellaneous discharge measurements in San Gabriel River drainage basin for 1896-1917— 

Continued. 



Date. 


Stream. 


) 

Tributary to— 


Locality. 


Dis- 
charge. 


Apr. —,1897 


Iron Fork of San Gab- 
riel River. 
.do 


San Gabriel River . . . 
do 


Mouth 


Sec.-ft. 
10 2 


May —,1897 


do 


8 9 


June —,1897 


do 


do 


do 


7 7 


July —,1897 
Aug. -1897 
Sept. — , 1897 


do 


do 


do 


8.6 
3.9 
4 1 


.do 


do 


do 


do 


do 


do 


Apr. -1900 
Do. 

Nov — , 189fi 


....do 


do 


... do 


1.69 
.32 
4 1 


Cattle Canyon Creek-. 

Cold water Creek . . 

do 


do 

Cattle Canyon 


Above Coldwater Canyon. . . . . 


Dec. —,1895 


... do 




/ 4 2 


Jan. — , 1897 


..do 


do 




11 3 


Feb. —,1897 


do 


do 




19 1 


Mar. —,1897 


do .... 


do - 




17 8 


Apr. —,1897 
May —,1897 


do 


do* 




11 3 


do 


do 




9 8 


June —,1897 


do 


do 




8.3 


July —1897 
Aug. —,1897 
Sept. —,1897 


do 


do 




6 5 


do 


do 




5 1 


do 


do 




5 


Apr. —1900 
Apr. —,1900 


do .... 


do 




1 46 


West Fork of San 

Gabriel River. 
do 


San Gabriel River 

do 


Above Bear Creek 


1.8 


June 20, 1910 


100 feet above jvmction with 

North Fork. 
Near mouth 


8.5 


Aug. 23,1898 


do . . 


.. . do 


26.7 


Aug. 22,1912 


do 


do 


Just above mouth in NE. \ 
sec. 29T.2N.,R.9W. 


11 


Nov. —,1896 




West Fork of San 
Gabriel River, 
do 


3 3 


Dec — 1896 


do 





3 4 


Jan. —,1897 


do 


do 




9 1 


Feb. —,1897 


do 


do 




24.7 


Mar. —,1897 


do 


do 




23.9 


Apr. —,1897 
May —1897 
June —,1897 


do 


do 




17 3 


...do 


do 




14.1 


do 


do 




6.3 


July —,1897 


do 


do 




6.2 


Aug. —,1897 


do 


do. . 




4.4 


Sept. -1897 
Apr. —,1900 
Nov. —,1896 


do 


do 




4.5 


do 


do 




2.42 


North Fork of West 
Fork of San Gabriel 
River, 
do 


do ... 




3.7 


Dec. —,1896 


do 




3 6 


Jan. —,1897 


do 


do 




10.8 


Feb. —,1897 


... do 


do 




17 


Mar. —,1897 


do 


.. do 




19 4 


Apr. —1897 
May —1897 
Jime — ,1897 


do 


do . . 




13 8 


...do 


do 




11.2 


do 


. do 




7 1 


July -,1897 
Aug. —,1897 
Sept. -,1897 
Apr. —1900 
June 20,1910 
Apr. 20,1903 


do 


do 




5 9 


do 


do 




4 1 


do 


do 




3 9 


do 


do 




1.43 


do 


do 


500 feet above mouth .. 


7 2 


San Dimas Creek 

do 


San Gabriel River 

do 


Mouth of canyon 


19 


May 22,1903 


do ... 


2.5 


Sept. 14,1903 


do 


do 


do 





Apr. 20,1903 
Apr. 20,1903 
May 22,1903 


do... 


do 







Dalton Creek 


San Dimas Wash 

....do 


Mouth of canyon 


9 


do 


do 


2.7 


Sept. 14,1903 


do 


do 


.do 





May 22,1903 


do 


do 


1 mile below mouth of canyon. 
Southern California Ry ...... . 

Old dam, 1 mile above mouth 

of canyon, including 1.5 

second-ifeet diverted by pipe 

line at dam. 
Just below old dam near 

mouth of canyon. 
100 feet above old dam 





Apr. 20,1903 


do 


do 





May 13,1916 


do 


do : ; 


1.6 


Feb. 20,1917 


do 


do 


2 3 


Feb. 28,1917 


do 


do 


a. 6 


Mar. 17,1917 


do 


do 


2 9 


Apr. 26,1917 
May 13,1916 


do 


do 


600 feet below intake of pipe 
line. Pipe line, below tun- 
nel, diverting 1.3 second- 
feet. 

Private bridge at mouth of 

canyon. 
do 


01 


Little Dalton Creek... 
do 


Dalton Creek 


1.2 


Feb. 20,1917 




1 



SAI^ GABRIEL RIVER BASIN. 

Miscellaneous discharge measurements in San Gabriel River drainage 

Continued. 



435 

vr 1896-1917— 



Tributary to- 



Locality. 



Dis- 
charge. 



Feb. 28,1917 

Mar. 17,1917 

Apr. 26,1917 

Apr. 25,1903 

May 31,1916 

June 27,1916 

Feb. 20,1917 

Mar. 17,1917 

Apr. 26,1917 

Apr. 26,1916 



May 15,1916 
May 15,1916 
Feb. 20,1917 
17,1917 
26,1917 
1, 



Mar. 
Apr. 
July 
Aug. 
Oct. 
Oct. 
Oct. 



7, 1900 

3. 1903 

5. 1904 

6. 1905 



Little Dalton Creek . 



do 

do 

San Jose Creek 

Thompson Creek. . 



..do. 
..do. 



do 

do 

Liveoak Creek . 



....do 

..-.ao 

do 

do., 

do 

Sawpit Creek . 
Sheep Creek . . 

do 

do 

do 



Dalton Creek . 



do 

do 

San Gabriel River.. 
San Jose Wash 



..do. 
..do. 

.-do. 
..do., 
..do. 



do 

do 

do 

do 

do 

San Gabriel River. . 

do 

do 

do 

do 



100 feet above concrete check 

dam. 

do 

do 

Whittier-Puente road 

One-fourth mile above mouth 

of canyon. 

do 

Just above junction with 

North Fork. 
Mouth of canyon below forks. . 

do 

Above Morris Camp, 1.1 miles 

above mouth of canyon 

(estimated). 

do 

Mouth of canyon 

do 

Below Camp Eno 

do 

Near mouth of canyon 



Whittier flume crossing . 

do 

do 



'..-ft. 
4.2 



.45 
.5 



.7 

.4 

.28 

.5 

.26 
1.33 
2.46 
4.6 
1.4 
4.6 



Miscellaneous discharge measurements of diversions in San Gabriel River drainage basin 

for 1898-1918. 



Date. 


Name. 


Locality. 


Dis- 
charge. 


Aug. 8, 1900 
Do 






Sec.-ft. 
.0 


Arrovo ditch 




21.1 


July 25,1902 


do 


Dam 


21.7 


June 15,1904 


do 


do 


20.6 


July 8,1904 
Aug. 31,1904 


do 


do... 


19.7 


do 


do 


18.6 


Sept, 24, 1904 
Oct. 15,1904 


do 


do . 


17.9 


do 


do 


20.8 


Sept. 27, 1902 


.do 


Intake 


24.6 


Oct. 11,1902 


do 


do 


24.2 


June ^1,1904 
Sept. 8,1902 
Oct. 11,1903 


do 


do 


21.7 


do 


Los Angeles & Salt Lake Ry 


19.6 


do. 


do 


20.5 


June 15,1904 


do 


do 


17.5 


July 8, 1904 


do 


do 


17.9 


Aug. 18,1904 


do 


do 


20.6 


Aug. 31,1904 


do 


do . 


16 4 


Sept. 24, 1904 
Sept. 27, 1904 
Oct. 15,1904 


do 


do 


17.0 


do 


do 


18.8 


do 


do 


18.5 


June 21,1904 


do 


do 


19.4 


Aug. 18,1902 
Sept. 8,1902 
June 21,1904 


do 


Point of diversion 


23.7 


do 


do 


23.2 


.. ..do 


Head of flume . . 


16.7 


Aug. 31,1904 


do 


do 


16.2 


Sept. 24,1904 


do 


do 


15.5 


Oct. 10,1904 


do 


do 


18.6 


Apr 25,1903 


do 


Southern California Ry. 


21 


Jan. 30 1912 


Azusa canal 


1,000 feet below power house near Azusa 

300 feet below power house near Azusa 

.. -do... 


32 


Jan. 21,1918 
Jan. 30,1918 


do 

. ..do 


20 
22 


Jan. 30 1912 


Azusa-Covina canal .... 


300 feet below tailrace of power house near 

Azusa. 
Point 1 


27 


July 29,1902 


Baldwin ditch (Rio Hondo) 

do 


3.2 


Aug. 18,1902 


do 


3.7 


Sept. 8,1902 


do *, 


do. 


.91 


Sept. 27, 1902 


do 'i 


do 


2 


Oct. 15,1902 


. ..do 


do.. 


1.6 


June 15,1904 


do 


do 


3 


July 8, 1904 


do 


do 


3.4 


Aug. 31,1904 


do 


do... . 


3 


Sept. 24, 1904 


do 


do 


2.8 



436 SURFACE WATER OF PACIFIC SLOPE, S0UTHER:N^ CALIFORNIA. 

Miscellaneous discharge measurements of diversions in San Gabriel River drainage basin 
for 1898-1918— Continued. 



Date. 


Name. 


LocaUty. 


Dis- 
charge. 


Oct. 5, 1904 


Baldwin ditch (Rio Hondo) 

do 


Point 1 


''.9 


Oct. 15,1904 


do 




July 20,1902 


...do. ... 


Point 3 


1 "^ 


Aug. 18,1902 


do 


do 


.7 


Sept. 8,1902 


do 


. .do.... 


72 


Sept. 27, 1902 


do 


do 


.63 


Oct. 11,1902 


do 


do 


.75 


Sept. 24, 1903 


.do 


do .. 


94 


Oct. 15,1903 


do 


do 


.78 


June 8, 1904 


do 


do 


96 


June 15,1904 


do. . 


do. .. 


1 4 


Aug. 31,1904 


do 


do .... 


.8 


July 29,1902 
Ausr. 18,1902 


... .do 

do 


Point 4 


1 9 


do ... 


1 2 


Sept. 8,1902 
Sept. 27, 1902 


do 


do 


.99 


do 


do 




Oct. 11,1902 


do . 


do ... 


81 


June 15,1904 
July 8, 1904 


do 


do • 


.0 


...do 


do 





Aug. 31,1904 
Oct. 15,1904 


do 


do 


62 


do 


do .* 


.0 


Oct. 6, 1905 


.do 


Old Mission Bridge- 


3 


May 23,1903 

Sept. 9,1903 
Aug. 7,1900 
July 15,1902 


Baldwin division (Santa Anita 
Creek), 
do 


Heading . 


3 


do . 


1 4 






15.4 


. do 




16.5 


Oct. 2, 1903 


do 


Heading 


28 


Oct. 5, 1904 


do 




19. 5 


Oct. 6, 1905 
Aug. 7, 1900 


do 


Below headgate of Ranchito ditch 


16.8 


Gate ditch 


Near head 


8.7 


July 15,1902 
Oct. 2,1903 


do 


In flume at road crossing. 


10.6 


do 


do 


5 5 


Oct. 11,1904 


do 


do 


11. 1 


Oct. 6, 1905 
Jan. 30,1912 

Aug. 9,1912 
Jan. 30,1918 
Oct. 3 1903 


do. . 


.do.... 


11.2 


Duarte canal 


About one-fourth mile below tailrace of 
Pacific Light & Power Corporation's power 
house at Azusa, Calif. 

do 

.. ..do 


9 9 


do 

. .do .'-.. 


7.8 
8 


Durfee ditch ... . . 


Road crossing above ranch house 


1.6 


Oct. 5,1904 


do 




.0 


Aug. 7,1900 
Aug. 8,1900 
Oct. 9, 1898 


Killon's pumping plant 


4 wells near El Monte 


10.2 


Little Lake 




.22 






1.64 


Sept. 23, 1899 
July 3,1898 
July 7, 1898 
Oct. 3,1903 
Oct. 5, 1904 
Oct. 6, 1905 


do . 


Alhambra water 


1.38 


Puente ditch 


SOper cent of usual head in ditch. . 


1.''2 


Rincon ditch 




2.47 


do 


Rincon road crossing 


3.4 


do 


do 


1.0 


...do 


do 


3.4 


Aug. 8,1900 
June 2,1911 


Rodriguez ditch 


Near Old Mission 


2 


San Gabriel Water Co. 's canal 

do 


100 feet above U. S. G. S. gaging station on San 
Gabriel River near Azusa, Calif 


6.2 


June 22,1911 
Sept. 1,1902 
Jan. 21,1918 


do . . . 


15 






.9 


Southern California Edison Co.'s 

canal. 
do 


Tunnel 4 A 


29 


Jan. 30,1918 


do 


31 


July 18,1918 
Aug. 7,1900 
July 15,1902 
Oct. 2, 1903 
Oct. 5,1904 
Oct. 6,1905 
July 3,1898 
Aug. 7,1900 
July 3,1898 
Aug. 7,1900 
Oct. 3, 1903 


do 


do 


47 


Standiferd ditch . . . 




14.6 


do 




19.1 


.....do 




14 


. . do 


do 


12.9 


do 


do 


15.6 


Temple ditch 




9.1 


do 




1.2 


Whittier ditch . 


El Monte road crossing 


2.52 


do 




5.71 


do 


Pumping plant east of El Monte, developed 
water. 


5.1 









SAN GABRIEL RIVER BASIN. 



437 



Discharge measurements of miscellaneous water supplies at points in San Gabriel Valley, 

Calif., for 1900. 

[Made by W. W. Cockins.] 



Date. 


Locality. 


Dis- 
charge. 


Date. 


Locality. 


Dis- 
charge. 


1900. 
Sept. 17 

17 


Bradbiory ranch, Santa Anita 

and Rose avenues. 
San Gabriel Sanitarium tunnel. 
W. A. Highland Rose avenue, 

Lamanda Park. 

Chapman ranch, two wells 
pumped; 1 artesian well. 

Chapman ranch, four wells 
pumped. 

Chapman ranch, natural flow 
of ci^naga. 

Chapman ranch dairy 


Sec-feet. 
1.44 

.04 
.10 


1900. 
Sept. 21 

21 
13 

13 
13 

13 
14 

14 
14 

14 
17 

17 
14 
14 
15 
15 

15 
15 

15 


Duarte Mutual Improvement 

& Canal Co. 
Beardsley Water Co 


Sec-feet. 

.78 

.44 


18 


Morengo Water Co., Southern 
Pacific Co. 's Garfield station 
(weir). 

Morengo Water Co.'s weir in 
Morengo Canyon (weir). 

Los Robles Water Co.'s reser- 
voir (weir). 

Reservoir at junction of Glen- 
arm and Los Robles avenues, 
Pasadena (weir). 


L82 


19 
19 
20 
20 


1.01 
1.90 
.07 
.72 


.46 

.31 
.068 




Chapman ranch, total. . . 

Alhambra Water Co., weir 

No. 1. 
Alhambra Water Co., weir 

No. 2. 

Total 


1 10 




3.70 


Brick kiln between Molino and 
Hope streets, Padadena. 

Oak Knoll Park, Pasadena 

Patton tunnel, near Kewen 
Lake. 

Patton 's east canyon. . 


.02 


20 
20 


2.58 
.34 


.34 

.18 

1 48 




Patton's east canyon, natural 

flow ; pump not running. 
Mission ditch, Patton ranch. . . 
Winston ranch ... 


.37 




2.92 




Santa Anita Canyon, natural 

flow. 
Sierra Madre Water Co.(weir) 
Remamettes east of Sierra 

Madre. 
Monrovia Water Co., 3 wells 

pumped. 

Monrovia Canyon, to Monrovia 

Water Co. (weirs). 
To Bradbury 


.20 
.56 


24 


.22 

.145 
.09 

3.24 




Shorbes ranch ( weir) 


.18 


24 
24 

18 


Yoakham-'s ranch (weir) 

Robert Liddel, San Pasqual 

and Shorb (weir). 
R. W. Scoville (weir) 


.12 
.10 

.07 




Mrs. Black. San Pasqual and 

Craig streets (weir). 
Momingside ranch (weir) 


.07 


24 


.428 
.116 


.04 




Total 






.544 











Discharge measurements ofivater supplies in San Dimas Wash, Calif, for 1900. 
[Made by Irwin F. Daniels.] 



Date. 


Well. 


Dis- 
charge. 


1 Date. 


Well. 


Dis- 
charge. 


Sept. 27 
27 


Daty & Sons 


Sec-feet. 
L80 
1.20 

.80 
.30 
.70 
.50 
L60 


i 

1 Sept. 27 
27 
27 

1 27 

1 27 

\ 27 

j 


A.zusa city well 


Sec-feet. 
20 


San Dimas Irrigation Co., F. 

D. Smith well. 
Thacker well 


Walker well 


.90 


27 


Citizens' Water Co. (Covina)... 

Covina plant, Deacon well 

Natural flow, San Dimas Can- 
yon. 
Spark's well 


.10 
.44 


27 


Smith well (privatp) 


.04 


27 


Chapman well 




27 


Ruddock well 


.40 


27 


Artesian Belt Co. , 2 wells 






1L38 



438 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Discharge measurements in SanGabriel Valley at wells on Lordsburg Mesa, Calif., for 1900. 
[Made by Irwin F. Daniels.] 



Date. 


Well. 


Dis- 
charge. 


Date. 


Well. 


Dis- 
charge. 


Sept. 27 
27 




Sec.-fect. 
L52 
.48 
.30 
.70 
.10 
.16 
.24 
.20 
.16 
.30 
.76 
.30 
.80 


Sept. 27 

27 
27 
27 
27 
27 
27 
27 
27 
27 
27 


Kulp (Intermittent) south of 

Mesa Avenue. 
D. Fulton 


Sec-feet. 
0.20 


SnTTITlPr. . 




27 


Sheldon Bros 


.50 


27 


La Verne Land & Water Co. . . 
Rodgers 


Steves 


.20 


27 


Daniels & Overholtzer 


1 34 


27 


True (5 days in 30) 




.54 


27 


Rodney Roper . 


Hauser Bros 


.76 


27 


Hayes & Stratton 




.50 


27 


Wallace ... 


Sleider 


.88 


27 


Milliard 


Rutherford & Co 


.40 


27 




New Deal Water Co. . . 


.40 


27 


N orris 


Kiser 


.90 


27 


WilUamsBros 










12.64 



WATER ABSORBED IN SAND AND GRAVEL. 

During the winter of 1902-3 the precipitation in southern Cahfornia 
was greater than at any time during the preceding 10 years. This 
condition led to heavy irrigation during the spring of 1903, many 
irrigators taking advantage of it to thoroughly saturate the soil at a 
time when water was plenty and cheap, thereby saving much expense 
and contention which always accompanies a later irrigation when 
water is scarce and expensive and the demand is greater than the 
supply. 

Immediately after the rain of April 16, 1903, a series of measure- 
ments were made by W. B. Clapp under the direction of the United 
States Geological Survey to determine the quantity of water being 
absorbed in the sand and gravel washes of the larger tributary streams 
of the three principal river basins of southern California — Santa Ana, 
San Gabriel, and Los Angeles rivers. Measurements were taken at 
the mouths of the canyons where the streams leave the mountains, 
at all canal diversions, and at such intervals along the streams as 
time and the available force detailed for this work would allow, the 
location of the point where the stream entirely disappeared or left 
the valley being noted. These measurements show the quantity of 
water taken up in the sand and gravel wash of this stream on the 
days given, and the following tables give this quantity in second-feet 
and acre-feet for a period of 24 hours: 



LOS ANGELES RIVER BASIN. 



439 



Water discharged from tributary streams and sinking in the San Gabriel River basin above 
El Monte, Calif., for 1903. 



stream. 


Second-feet. 


Acre-feet. 


Passing El 
Monte. 


Diver- 
sion. 


Waste. 


Total. 


Diver- 
sion. 


Waste. 


Total. 


Second, 
feet. 


Acre- 
feet. 


APR. 26. 
San Gabriel 


40 


285 
19 
9 
40 
29 


325 
19 
9 

40 
29 


79 


565 
38 
18 
79 

57 


644 
38 
18 
79 

57 


229 


454 


San Dim as 




Dalton. 








Santa Anita 








Eaton Canyon . 


















40 


382 


422 


79 


757 


833 


229 


454 


MAY 23. 

San Gabriel . 


70 
2 

1.3 
3 
3 


97 
.5 

1.4 
10 

3 


167 
2.5 
2.7 
13 
6 


139 
4 

26 
6 
6 


192 
1 

2.8 
20 
6 


331 

5 

5.4 
26 
12 






SanDiTTias. 






Dalton. 






Santa Anita 






Eaton Canyon 


1 








79 


112 


191 


158 


222 


380 


. 1 .. 




1 



LOS ANGELES RIVER BASIN. 

GENERAL FEATURES. 

Los Angeles River is formed by Tujunga, Pacoima, and other small 
creeks, whose sources lie in the Sierra Madre northeast of the city of 
Los Angeles. These streams leave the mountains at a point about 25 
miles above the city and enter the comparatively flat country of the 
San Fernando Valley, where, except at times of excessive flood, the 
waters disappear in the sand and gravel washes. At the lower end 
of this valley is a secondary range of hills, extending from east to 
west, and bedrock obstruction forces the water to the surface to 
form what is known as Los Angeles River. Below this point the 
river flows through the flat country of the Los Angeles Valley and 
enters the Pacific near the town of Long Beach. 

During the summer the entire flow of Los Angeles River is diverted 
at a point about 5 miles above Los Angeles for the supply of the city, 
only a small amount of water passing this point except during flood 
periods. 

At the city of Los Angeles the river is joined by Arroyo Seco, 
which drains an area of 21 square miles in the Sierra Madre. This 
stream issues from the mountains on the west side of Pasadena 
Mesa and passes through an opening in a granite spur known as 
Devils Gate. Between the point where it leaves the mountain and 
Devils Grate lies a broad river bottom 2 miles long, composed of 
coarse material. In passing over this the water sinks rapidly, 
diminishing in volume of flood water from the mouth of the canyon 
to Devils Gate. 



440 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



LOS ANGELES RIVER ABOVE LOS ANGELES, CALIF. 

Discharge of Los Angeles River at weirs above Los Angeles, Calif., for 1896-1897. 
Weir No. 11, 9.88 miles above city limits. 



Discharge in second-feet. 



Maximum. Minimum. Mean, 



August 

September. 

October 

November.. 
December. . 



Weir No. 1, 9.79 miles above city limits. 



1896. 

August 


21 
21 

26 
24 
23 


19 
19 
19 
19 
19 


20 
20 
20 
21 
20 


1 230 


September 


l' 190 


October . . 


1 230 


November 


1 250 




l'230 







Weir No. 4, 7.27 miles above city limits. 



August 

September.. 

October 

November . . 
December. . 



January.. 



46 


41 


44 


44 


41 


43 


56 


41 


44 


52 


43 


46 


55 


43 


47 


47 


44 


46 



Weir No. 5, 4.87 miles above city limits. 



August 

September . 

October 

November . . 
December.. 



January... 
February. 



77 


67 


71 


76 


63 


71 


82 


65 


69 


76 


68 


70 


96 


67 


72 


96 


G7 


73 


96 


71 


77 



Weir No. 8, 3.65 miles above city limits. 



August 

September. 

October 

Noveniber.. 
December.. 



January. . 



73 


67 


70 


73 


65 


69 


83 


65 


69 


74 


67 


71 


93 


08 


73 


79 


-■^ 


73 



LOS ANGELES RIVER AT THE NARROWS, CALIF. 

The streams entering San Fernando Valley have brought down 
immense quantities of sand and gravel from the mountainous area, 
and thus have formed the San Fernando Plains. This coarse deposit 
acts as a natural regulator, absorbing the flood waters, which grad- 



LOS ANGELES EIVEE BASIN. 441 

ually appear lower down. The rainfall of southern California was 
deficient for the few years prior to 1902, but the discharge of Los 
Angeles River at The Narrows remained exceptionally constant, the 
decrease in 1900 being not more than 20 per cent of the average. 
On account of the numerous law suits which have arisen regarding 
water rights on this river, a thorough study of its discharge was in- 
stituted by the city of Los Angeles, the work being under the direc- 
tion of J. B. Lippincott, as consulting engineer for the city. The 
majority of the measurements were made by C. A. Miller, although 
a number of them were made by F. H. Olmsted, city engineer. Sev- 
eral weirs were placed in the river where the measurements are made. 
The points of measurements are as follows, in order downstream: 

Weir A, at the intersection of Pacoima Avenue with Los Angeles River, in the 
Lankershim Rancho subdivision. 

Weir B, at the intersection of Vineland Avenue with Los Angeles River. 

Weir C, at the intersection of Fernando Avenue with Los Angeles River. 

Weir E, at the southwest corner of block 73, Providencia Rancho. 

Weir G, at the intersection of the east line of block 71, Providencia Rancho, with 
Los Angeles River. 

Weir L, 770 feet above weir H. 

Weir H, approximately 300 feet east of the intersection of Buena Vista Street with 
Los Angeles River. 

Weir I, 2,543 feet below weir H, 

Weir J, 600 feet east of the west line of block 69, Providencia Rancho. 

Weir K, in block 79, Providencia Rancho, 300 feet west of center. 

Measuring bridge P, near the southwest corner of block 81, Providencia Rancho, 
in the head works site of the city of Los Angelos, commonly known as the Pomeroy & 
Hooker tract, where river turns to the east at angle of 90 degrees. 

Measuring bridge Q, about 400 feet above the junction of the Verdugo Wash with 
Los Angeles River. 

Measuring bridge No. 2, about 600 feet above the head of the power ditch of the 
Los Angeles City Water Co., in the so-called Crystal Springs tract. 

Weir No. 7, 1 mile below the head, in the main supply ditch, sometimes called the 
Woolen Mill ditch, in the headworks site. 

Measuring point No. 7B, at a 3-foot cement pipe in the same ditch, west of bridge 
No. 2 and at the Los Felix ranch house. 

Weir No. 17, opposite bridge No. 2, on what is called the Glassell tributary. 

(To get the total flow of river at bridge No. 2, there should be combined the flow 
at bridges No. 2, No. 17, and No. 7B. In case measurements were not taken on the 
main supply ditch at No. 7B, the measurement observed at weir No. 7, above No. 7B 
on the main supply ditch, was used, and the loss between No. 7 and No. 7B, 2.49 
second-feet, was deducted. This is shown in detail in the table for bridge No. 2. 
For bridge Q a similar process is followed, omitting No. 17. For bridge P the observed 
flow at the bridge is combined with either the flow at No. 7 or at No. 7B.) 

Weir No. 9, at the mouth of Tujunga Creek, near the western end of the headworks 
site, and near the intersection of Buena Vista Street with Los Angeles River, 

Weir No. 10, approximately 200 feet west of weir No. 9, at the outlet of a small cut 
which was run into the gravel bed for the development of water. 

Weir M, block 67, Providencia Rancho, on a small stream entering the river in the 
headworks tract. 



442 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Discharge measurements of Los Angeles River, Calif., for 1899-1900. 

Weir A. 



Date. 


Dis- 
charge. 


Average 

for 
month. 


Date. 


Dis- 
charge. 


Average 

for 
month. 


1899. 
Aug. 14 


Sec.-ft. 
0.565 
.660 
.500 
.500 
.687 
.725 
.721 
.678 
.768 


Sec.-ft. 
1 0. 612 

} .500 
.687 
.723 
.723 


1900. 
May 17 


Sec.-ft. 
0.461 
.461 
.402 
.310 
.368 
.372 
.430 
.378 
.400 
.328 
.380 


Sec.-ft. 
0.461 


^ 19 


June 12 


} .431 


Sept. 20 


29 


26 


Aug. 1 


Oct. 24 


s::::::::::::::::::;:::: 




Nov. 24 


15 


.370 


28 


31 




Dec. 7 


Sept. 8 




28 


11 . . ... 


.368 




27 






Nov. 10 


.380 




Mean 








.649 




.402 













1899. 
Aug. 14 


0.500 
.500 
.500 
.755 
.937 
.941 
.864 
.982 


} 

! 


0.500 
.500 
.755 
.939 

.923 


1900. 
May 17 


0.482 
.430 
.280 
.160 
.180 
.197 
.219 
.209 
.223 
.176 
.260 


0.482 


Sept. 20 


Jime 12 


} .355 
.160 


^ 26 


29 


Oct 24 


July 27 


Nov. 24 


Aug. 1 . . . 


] 


28 


15 


[ .198 


Dec. 7 


31 


1 


28 


Sept. 8 


1 




^ u:':....::;:::::;::.;;:: 


[ ."203 




27 


1 




Nov. 10 


' .260 




Mean 




Mean 




.723 




.276 













1899. 
Aug. 14 


2.88 
2.88 
2.69 
2.26 
2.88 
2.98 
3.45 
3.42 
3.44 


} 


2.88 

2.48 

2.93 

3.43 
3.44 


1900. 
May 17 


2.98 
2.91 
2.45 
2.50 
2.48 
2.48 
2.55 
1.58 
2.38 
1.63 
2.42 


2.98 


^ 28 


June 12 


2.91 


Sept. 20 


July 27 


2.45 


26 


Aug. 1 




Oct. 9 


8 . 




24 


15 




Nov. 24 . 


31. . 




28 


Sept. 8 




Dec. 28 


^ 11 


I 1.86 




27 . 






Nov. 10 


2.42 




Mean 




Mean 




3.03 




2.52 











1899. 
Aug. 14. 


5.55 
5.55 
5.35 
5.25 
5.99 
6.53 
6.24 
6.24 
6.24 
6.30 


} 5.55 

} 5.30 

5.99 

} 6.38 

6.26 


1900. 
May 15 


5.45 
5.18 
4.81 
4.80 
4.80 
4.53 
4.47 
4.88 
4.49 
4.65 
4.30 
■ 4.67 


5.45 


^ 28 


Jtme 12 




Sept. 20 


29. . . 


4.99 


^ 26:::::.;.:::::::::::::: 


July 12 


} 4.80 


Oct. 25 


^27 


Nov. 17 


Aug. 1 




28 


15 


I 4.63 


Dec. 13 


31 




21 


Sept. 8 


] 


26 


11 


[ 4.48 




27 


J 




Nov. 10 


' 4.67 








Mean 




5.89 




4.84 













LOS ANGELES RIVEE BASIN. 



443 



re measurements of Los Angeles River, Calif ., for 1899-1900 — Continued. 
Weir G. 



Date. 


Dis- 
charge. 


Average 

for 
month. 


Date. 


Dis- 
charge. 


Average 

for 
month. 


1899. 
Aug. 14 


Sec.-JL 
7.92 
7.92 
7.60 
7.60 
7.66 
8.60 
9.17 
8.99 
8.90 
8.90 
8 92 


Sec.-JL 
\ 7.92 

j. 7.60 

} 8.13 

1 9.08 

8.90 


1900. 
May 15 


Sec.-jt. 
7.94 
7.63 
7.00 
6.45 
6.45 
6.80 
6.87 
6.72 
7.00 
6.68 
6.99 


Sec.-Jt. 
7.94 


28... . 


June 12 


} 7.31 


Sept. 20 


29 


26 


July 27 


6.45 


Oct. 9 


Aug. 1 




25 


15 .. 


6.70 


Nov. 17 


31 




28. . 


Sept. 8 


1 


Dec. 13 


11 


V 6.80 


21 


27 


1 


26. 


Nov. 13. 


6.99 












8.33 




7.03 















28 


Sept 


20 




26 


Oct. 


9 




25 




27 


Nov 


17 




28 


Dec. 


13 




21 




26 



9.08 
8.03 




9.00 


8.59 
8.89 




8.74 


8.59 






9.58 




9.22 


9.48 






10.15 
9.93 


. 


10.04 


10.02 






10.02 




10.11 


10.30 










9.42 





May 15. 

23. 
June 12.. 

29. 

July 27. 

Aug. 1. 

8. 

15. 

31. 
Sept. 8.. 



8.85 
8.73 
8.62 
8.30 
7.53 
7.53 
7.59 
7.69 
8.02 
7.82 
8.20 
7.76 
8.34 



1899. 
Aug. 14. . . 


11.88 
12.19 
11 60 
12.03 
11.60 
12.66 
12.66 
13.73 
13.47 
13.42 
13.64 
13.80 




12.04 
11.82 

12.31 

13.60 

13.62 


1900. 
May 15 


11.42 
11.21 
11.01 
10.68 
9.96 
9.96 
10.16 
10.13 
10.57 
10.15 
10.39 
10.03 
10.54 


• 

1 
1 




28 


23 


11.31 


Sept. 20 


June 12 




"^ 26 


29 




Oct. 9 


July 27. 


9.96 


25 


Aug. 1 




27 


8 




Nov. 17 .. .. 


15 


10.20 


28 


31... . 




Dec. 13 


Sept. 8 




21 


11 


10.19 


26 


27 






Nov. 10 


10.54 




Mean 




Mean 




12.68 






10.51 













1899. 
Aug. 14. . . 


17.18 
16.91 
17.15 
17.32 
17.19 
18.33 
19.04 
18.72 
18.93 
18.99 


} 
} 


17.04 
17.23 
17.76 
18.88 
18.96 


1900. 
May 15 


16.25 
16.05 
15.66 
15.49 
15.58 
14.74 
14.37 
14.94 
14.69 
14.80 
14.54 
14.74 
14.31 
14.92 


16. 15 
15.57 
15.16 


28 


23 


Sept. 20 


June 12 


26 


29 


Oct. 9 


July 12 


25 


27 


Nov. 17 


Aug, 1 


28. . 


8 


14.70 


Dec. 13 


15 




26 


31 






Sept. 8 






11 


14.53 




27 






Nov. 10... . 


14.92 








Mean 




17.97 




15.17 













444 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Discharge measurements of Los Angeles River, Calif., for 1899-1900— Qontmuedi. 

Weir J. 
[Total discharge of river at weir J equals discharge over weir + discharge at No, 7, or + No. 7B + 2.49.] 



Date. 


Discharge 
at No. 7, or 
N0.7B+2.49 


Discharge 
over weir. 


Total dis- 
charge for 
weir. 


Average 
for month. 


1899. 
Aug. 14 . . . 


Second-feet. 
18.59 
17.90 
17.90 
18.28 
48.08 
17.45 
18.02 
13.78 
13.90 
13.66 


Second-feet. 
0.55 
.49 
.49 
.49 
.44 
1.85 
2.91 
6.71 
6.34 
6.73 


Second-feet. 
19.14 
18.39 
18.39 
18.77 
18 52 
19. 30 
20.93 
20.49 
20.24 
20.39 


Second-feet. 
18. 76 
18.58 
18.91 
20.71 
20.31 


28 


Sept. 20 


26 


Oct. 9 


25 . . 


Nov. 17 


28 


Dec. 13 


26 




Mean 








19.45 












1900. 
May 15 


20.00 
16.37 
19.81 
16.31 
18.49 
19.25 


1.39 
1.67 
.86 
.86 
.41 
.46 
.42 
.52 
.39 
1.49 


21.48 
18.04 
20.67 
17.17 
18.90 
19,71 


} n.n 


23 


June 12 


29 


> 18.92 


Aug. 15 




31 




Sept. 8 




11 


19.81 
17.59 
14.84 


20.33 
17. 98 
16.33 


1 19. 15 
16 33 


27 


Nov. 10 . 






Mean... 








18. 69 













Weir K. 

[Total discharge of river at weir K equals discharge over weir + discharge at No. 7, or + No. 7B+ 2.49.] 



1899. 
Aug. 14 


18.59 
17.90 
17.90 
18.28 
18.08 
17.45 
18,02 
13. 78 
13 90 
13.66 


4.13 
3.92 
3.91 
3.98 
4.13 
5.70 
6.97 
10.69 
10.69 
10.92 


22.72 
21.82 
21 81 
22.26 
22.21 
23.15 
24.99 
24 47 
24.59 
24.58 


! 


22.27 


28 


Sept. 20 




■ 26 


22.03 


Oct. 9 




25 




Nov. 17 . 




28 




Dec. 13 




26 ... 


24.58 






Mean ... 










23.26 








. 




1900. 
May 15 


20.09 
16.37 
16.32 


4.94 
4 94 
2.93 
2,55 
2.71 
2.55 
2.81 
2.80 
2.50 
4. 12 


25 03 
21.31 
19 25 


} 




^ 23::;:::::;:::;;;;::::;:;:::;::;;::::;:::::::::::: 




July 2 


19.25 


Aug. 1 




15 


18.49 
19.25 


21 20 
21,80 


} 




31 


21 50 


Sept. 8 




^ 11 


19.81 
17.59 

14.84 


22.61 
20 09 
18.96 


} 




27 . 


21.35 


Nov. 10 


18.96 






Mean 










20.85 













LOS ANGELES RIVER BASIN. 



445 



Discharge measurements of Los Angeles River, Calif., for 1899-1900 — Continued. 



Bridge P. 

[Total discharge of river at bridge P equals discharge at bridge + discharge at No. 7, or + discharge at 

No. 7B.] 



Date. 


Discharge 
at No. 7 
or No. 7B. 


Discharge 
at bridge. 


Total dis- 
charge at 
bridge. 


Average 
for month. 


1899. 
\ne. 25 


Sccond-fcct. 
18.66 
17.90 
18.66 
18.08 
17.45 
17.45 
18.02 
13.18 
13.90 
13.66 


Sccond-fcct. 
20.22 
19.36 
21.08 
19.81 
17.62 
21.06 
25.73 
27.75 
31.94 
27.67 


Sccond-fcct. 
38.88 
37.26 
39.74 
37.89 
35.07 
38.51 
43.75 
40.93 
45.84 
41.33 


Second-feet. 
38.88 


Sept. 20. 


1 38. 50 




Oct. 10. . 


25 


37. 16 


28 




Nov. 17... 


42.34 
} 43.58 


28 . 


Dec. 13 . 


26. ... 




Mean .... 








40.09 












1900. 
May 15 


17.60 
13.88 
17.32 
13.83 
14.00 
14.00 
14.00 
16.00 


21.22 
20. 28 
18.59 
19.51 
16.99 
17.04 
18.71 
19.94 
19.26 
19.67 
18.38 


38.82 
34.16 
35.91 
33.34 
30.99 
31.04 
32.71 
35.94 


} 36.49 
35.91 


23 


June 12 . . 


July 2 


1 32.16 


12.. 


Aug. 1 


8 


33. 23 


15. 




Sept. 8 




^ 11. 


17.32 
15.10 


36.99 
33.48 


} 35.23 


28 




Mean. 








34.60 






1 





Bridge Q. 

[Total discharge of river at bridge Q equals discharge at Q + discharge at No. 7-2.49, or + No. 7B.] 



Discharge 

at 7-2. 
49, or 7B. 



Discharge 
at bridge. 



Total dis- 
charge at 
bridge. 



Average 
for month. 



Sept. 20.. 

27.. 

Oct. 10.. 

25.. 

28... 

Nov. 17.. 

29. 

Dec. 13 . . 

26.. 



May 15.. 

23. 
Jtme 12 . . 
July 2 . . . 

12. 
Aug. 1... 
Sept. 8... 

11. 



28 

Mean. 



Second-feet. 
15.41 
16.17 
15.59 
8.21 
8.23 
9.36 
12.20 
11.41 
11.17 



17.60 
13.88 
17.32 
13.83 
14.00 
14.00 

"17." 32' 
15.10 



Sccond-fcct. 
28. 12 
27.99 
27.77 
27.66 
36.48 
39.71 
33.89 
35.99 
31.86 



28.42 
27.97 
27.64 
26.20 
24.79 
24.48 
27.09 
26.22 
29.33 



Second-fcct. 
43.53 
44.16 
43.36 
35. 87 
44.71 
49.07 
46.09 
47.40 
43.03 



46.02 
41.85 
44.96 
40.03 
38.79 
38.48 

"43." 54" 
44.43 



Second-feet. 
I 43. 84 



47.58 
45.21 



43.93 
44.96 
39.41 



446 SURFACE WATER OF PACIFIC SLOPE, SOUTHERIsr CALIFORITIA. 

Discharge measurements of Los Angeles River near bridge No. 2. Calif., for 1889-1. 



Date. 


Hydrographer. 


Locality. 


Dis- 
charge. 


1889. 
June 15 


Wm. Mulholland 


River 


Sec-feet. 
36.7 


15 


do 


Power ditch 


11.1 


15 


do 


Main supply ditch . . . 


11.2 




Total at bridge No. 2 








59.0 


July 15 


Wm. Mulholland 


River .. 


33.3 


15 


do 


Power ditch . . , . 


11.0 


15 


do 


Main supply ditch 


14.1 




Total at bridge No. 2 . . . 








58.4 


1891. 
Nov, 18 


Wm. Mulholland 


River . , 




68.0 


18 


do 


Power ditch 


10.0 


18 


do 




3.0 




Total at bridge No. 2 








81.0 


1893. 
Nov. — 


Wm. Mulholland 


River . 




58.8 




do 


Power ditch 


15.0 




do... 


Main supply ditch 


(?) 


1898. 
Feb. 28 


do 






51.8 


28 


do 


Glassell tributary ... 


.7 


28 


do 




15.0 


28 


do 








Total at bridge No. 2 








67.5 











Discharge measurements of Los Angeles River at bridge No. 2, Calif ., for 1899-1900. 

[Total discharge of river at bridge No. 2 ectuals discharge at No. 2+discharge at No. 7B, or No. 2+No. 7— 

2.49.] 



Date. 


Discharge 

at No. 7- 

2. 49, or No. 

7B. 


Discharge 
at No. 17. 


Discharge 
at bridge. 


Total dis- 
charge at 
bridge. 


Average 
for month. 


1899. 
Aug. 19 


Sec-feet. 
15.59 
16.17 
15.41 
16.17 
15.59 
8.21 
8.23 
8.78 
9.36 
12.20 
11.41 
11. 17 


Sec-feet. 
. 0.06 
.06 
.06 
.06 
.05 
.05 
.05 
.05 
.06 
.06 
.07 
.07 


Sec-feet. 
41.29 
42.41 
40.23 
40.07 
39.35 
48.88 
44.45 
48.73 
49.71 
43.40 
46.69 
46.89 


Sec-feet. 
56.94 
58.64 
55.70 
56.30 
54.99 
57.14 
52.73 
57.56 
59.13 
55.66 
58.17 
58.13 


Sec-feet. 
57.79 




Sept. 20 . . 


56.00 


27 


Oct. 10 




25. 




28 




31 




Nov. 17 . 


57.39 


29 .... 


Dec. 13 


58. 15 


26. 




Mean . 










56.99 














1900. 
May 16... 


17.60 
13.88 
17.32 
13.83 
15.32 
14.00 
14.00 
16.00 
16.76 


.14 
.14 
.14 
.10 
.14 
.10 
.10 
.10 
.10 


39.61 
38.46 
39.23 
35.38 
40.10 
34.62 
34.77 
38.58 
35.36 
34.27 
35.56 
34.28 
39.45 


57.35 
52.48 
56.69 
49.31 
55.56 
48.72 
48.87 
54.68 
52.22 


1 54. 91 


23 


June 12 


56.69 


July 2 


} 52.43 


13 


Aug. 1 




1 


15 




31 


1 


Sept. 8 . . . 




11 


17.32 
15.10 

14.84 


.20 
.08 
.10 


53.08 
49.46 
54.39 


\ 51.27 
54.39 


28 


Nov. 10 






Mean 










53.46 













LOS AISTGELES RIVER BASIN. 447 

Average discharge of Los Angeles River at weir 9, Calif ., for 1899-1900. 



Month. 



January. . 
February. 

March 

April 

May 

June 



Sec-feet. 
1.17 
1.00 
1.16 
1.10 
.71 



Sec-feet. 
0.52 
.49 
.39 

.38 
.30 
.24 



July 

August — 
September 
October . . . 
November. 
December . 



Sec-feet. 
0.55 



.56 
.52 



Sec-feet. 
0.15 
.18 
.20 



Average discharge of developed water at weir 10. 



January . . . 
February. . 

March 

April 

May 

June 



Sec-feet. 

6.'%' 

.93 



Sec-feet. 
0.89 



.79 

.82 
.79 



July 

August 

September. 
October . . . 
November. 
December . 



Sec-feet. 
0.79 
.79 



Sec-feet. 
0.74 



Average discharge of small tnhutary of Los Angeles River at iveir M, Calif., for 1899. 



January. . 
February 

March 

April 

May 

Jime 



Dis- 
charge. 



Sec-feet. 
0.29 
.20 
.20 
.14 
.07 
.06 



July 

August 

September 
October... 
November 
December. 



Dis- 
charge. 



Sec-feet. 
Dry. 

Do. 

Do. 

Do. 

Do. 

Do. 



Average discharge of cut of West Los Angeles Water Co., from gravel beds of Los Angeles 
River, in San Fernando Valley, Calif., for 1899-1900. 



Month. 


1899 


1900 


Month. 


1899 


1900 


May 


Sec-feet. 


Sec-feet. 
5.79 
5.85 
5.75 

5.87 




Sec-feet. 
6.02 
5.94 
6.07 
6.08 


Sec-feet. 


June 




October . 




July 










6.01 













448 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 
Average discharge of Los Angeles River, Calif., for 1899-1900. 



Measuring point. 


Interven- 
ing 

distance 
along 
river. 


Average 
discharge, 
August to 
December, 
inclusive, 
1899. 


Rate of 

growth 

per 100 

feet, 1899. 


Average 
discharge, 

May to 

November, 

inclusive, 

1900. 


Rate of 

growth 

per 100 

feet, 1900. 


Weir A 


Feet. 


Sec.-fcct. 
0.649 




Sec-feet. 
0.402 






10,280 


0.001 
.066' 


0.001 


Weir B 


.723 


.276 






3,486 


.064 


Weir C 


3.03 


2.52 






7,069 


.039 


.033 


Weir E 


5.89 


4.84 






4,585 


.053 


.048 


Weir G.. 


8.33 


7.03 






1,041 


.105 


.105 


Weir L 


9.42 


8.12 






770 


.424 


.310 


Weir H 


12.68 


ia5i 






2,543 


.210 


.183 


Weir I 


17.97 


15.17 






3,926 


.038 


.089 


Weir J 


19.45 


18.69 






3,600 


.100 


.060 


Weir K 


23.06 


20.85 






6,345 


.268 


.217 


Bridge P ' 


40.09 


34.60 






4,629 


.095 


.163 


Bridge Q 


44.49 


42.15 






6,756 


.185 


.167 


Bridge No. 2 


56.99 


53.46 













DIVERSIONS FROM LOS ANGELES RIVER. 

During the summer the amount of water in the 44-inch conduit 
and in the main-supply conduit of the city of Los Angeles has been 
measured to determine the amount of water diverted from Los 
Angeles River for domestic supply. The water is taken from the 
river near Burbank and the measurements show the entire surface 
flow and underground development of the river at this point during 
the summer. Some return seepage water appears again in the river 
channel near Huron Street, Los Angeles, near which point the city 
has an underground gallery or tunnel for collecting an auxiliary 
supply which is pumped into the reservoir and used in the general 
distributing system. 



LOS ANGELES RIVER BASIN. 



449 



Discharge measurement; of Los Angeles River and diversions at Los Angeles, Calif., for 

1904-5. 



1904. 
Apr. 15 
May 25 
June 18 

24 

27 
Julv 19 
Aug. 9 

18 
Sept. 7 

20 
Oct. 20 

25 
Nov, 18 
Dec. 28 

1905. 
May 15 
June 22 
July 28 
Sept. 19 



Made by — 



F. B. Cook 

Clapp and Cook. 
F.B. Cook 



Clapp and La Rue. . 
La Rue and Cook.. 

P. B. Cook 

La Rue and Cook... 
F. B. Cook 

E. C. La Rue 

do 

F. B. Cook 

La Rue and Cook... 
E. C. La Rue 



Discharge. 



44-inch 
conduit. 



Sec.-ft. 
42.3 
40.0 
29.2 
31.7 
34.2 
33.1 
29.9 
30.5 
29.7 
31.1 
31.9 
31.4 
33.3 
27.7 



42.0 
38.0 
37.0 
3.5.3 



Main 
supply 
ditch. 



Sec.-ft. 
4.5 
8.0 
10.8 



10.2 
10.4 
10.8 
10.4 
11.0 
11.6 
11.6 
11.8 
10.0 



11.0 
9.9 

8.4 



River at 
Huron 
Street. 



Sec.-ft. 



3.7 
5.3 



3.4 

8.2 



10.6 
3.3 



46.8 
48.0 
40.0 
40.3 
46.5 
^8.6 
40.3 
44.9 
40.1 
45.5 
5L7 
43.0 
53.5 
59.9 



63.6 
5L2 
50.0 

47.4 



Measurements of flow, in second- feet, of diversions from Los Angeles River hy the city of 
Los Angeles for 1906-1909. 



Date. 


44-inch 
conduit 
discharge. 


Main-sup- 
ply conduit 
discharge. 


Total. 


Date. 


44-inch 

conduit 

discharge. 


Main-sup- 
ply conduit 
discharge. 


Total. 


1906. 

Feb. 24 a 

Apr. 20 


26.59 
36.23 
31.76 
34.73 
33. 95 
30.49 
32.86 
38.11 
29.48 
32.73 
33.61 

42.50 
44.96 
50.46 
35.13 
32.24 
36. 45 
38.51 
35.52 


6.58 

7.67 
15.86 

9.43 
10.23 
13.67 
11.30 

4.43 
13.20 
13.50 
15.66 

22.61 
19.50 
8.55 
18.03 
17.38 
14.69 
16.26 
19.63 


33.17 
43.90 
47.62 
44.16 
44.18 
44.16 
44.16 
42.54 
42.68 
46.23 
49.27 

65. 11 
64.46 
59.01 
53.16 
49.62 
51.14 
54.77 
55.15 


1908. 

Apr. 29 

May 21 


44.44 
43. .31 
42.72 
37.73 
33.34 
38.12 
35.73 
34. 73 
38.73 
40.24 
35.54 
36. 91 

40.19 
37.99 
37.84 
37.93 
37.28 
35.28 
36.04 
37.02 


12.30 
13.81 
12.67 
12.96 
17.16 
13.00 
15.16 
. 16. 43 
16.30 
14.65 
21.78 
22.98 

25.47 
24.65 
23.41 
23.25 
21.90 
22.22 
21.06 
22.03 


56.74 
57 12 


June 23 


June 2.5 

Julv 31 


55 39 


July 17 


50 69 


20 


Aug. 3 


50 60 


Aug. 22 


5 


51 12 


31 


7 


50 89 


Sept. 21 


26 


51.16 


^ 23 


Sept.22 


55 03 


Nov 22 


Oct 23 


54 89 


Dec. 18 


Nov. 20 


57 32 




Dec 30-. 


59 89 


Apr. 8 


1909. 
Mar. 16 




May 9 


65.66 




Apr. 9 

May 13 


62 64 


July 12 .. .. 


61 25 


Aug. 8 


June 9 


61 18 


29 


Julv 20 


59 18 


Oct. 8 


Aug. 12 


57.50 


Nov. 9... 


Sept. 8 


57.10 
59.05 




Oct. 23 









o On Feb. 24, 1906, 23.9 second-feet was passing intake and is not included in above total. On Apr. 20, 
7.4 second-feet was passing intake and is not included in above total. 

PACOIMA CREEK WEAR SAN FERNANDO, CALIF. 

Location.— In SE. \ NE. \ sec. 24, T. 3 N., R. 15 W., about 600 feet above mouth 
of canyon, and about 4 miles northeast of San Fernando, Los Angeles County. 

Drainage area. — 27.9 square miles (measured on topographic map). 

Elevation. — About 1,500 feet above sea level. 

Records available. — ^March 31, 1916, to September 30, 1918. (Not complete.) 

Gage. — Gurley graph water-stage recorder, with concrete well and house, on left bank, 
Bbout 600 feet above mouth of canyon, installed December 2, 1916. (See PL XV, 
A.) Previous gage was a staff fastened to a boulder on left bank, 216 feet above 
water-stage recorder. It was at independent datum and had a different control. 
142131 ° —21— v,'SP 447 29 



450 SURFACE WATEE OF PACIFIC SLOPE, SOUTHEPvN" CALIFORNIA. 



Discharge measurements. — Made from cable 20 feet above gage well or by wadiag 
at gage. 

Channel and control. — Sand, gravel, and boulders; not permanent. Left bank 
is steep rock cliff; right bank sloping and covered Avith brush and trees. Control 
ia a low boulder-and-concrete dam built across channel about 7 feet below gage 
well. Lowest point in control is at elevation of 1.1 feet on gage. 

Extremes of discharge. — 1916-1918: Maximum stage from water-stage recorder, 
4.68 feet at 4 p. m. December 24 (discharge 1,440 second-feet); stream dry 
July 11, 1917, to January 11, 1918, and June 26 to September 30, 1918. 

DrvBRSiONS. — None above station. There is a diversion just below control. 

E:egulation. — None. 

Accuracy. — Stage-discharge relation not permanent on account of shifting of gravel 
above control. Rating curves fairly well defined. Daily discharge ascertained 
by applying to the rating table mean daily gage height determined by inspecting 
recorder graph. Records fair. 



Discharge measureinents of Pacoima Creeh 


near Stin Fernando, 


Calif., for 1916-1918. 


Date. 


Made "by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


height. 


Dis- 
charge. 


1916. 
Mar. 31 


F. C. Ebert 


Feet. 
1.26 
1.26 
1.14 
1.04 
.85 
,82 
.60 
.48 
.32 
.24 
2.05 

1.98 
2.04 
1.98 
1.95 
2.13 
2.18 
2.49 
2.60 
2.37 
2.16 
2.03 
1.96 
1.92 
1.90 
1.76 
1,75 


Sec-fl. 

21 

21 

17 

12 
7.1 
6.5 
3.4 
1.7 ; 

23 

11 i 

20 

10 

8.1 
6.1 
13 
136 

161 

98 

48 

26 

18 

14 

12 
9.9 
9.0 


1917. 

May 3 ] 

12 . 
June 8 . 
July 1 . 
Sept. 12 . 

14 . 

15 . 
Oct. 28;. 
Nov. 17 . 
Dec. 30.. 

1918. 
Feb. 21 : 

27 
Mar. 7 . 
8 . 

13 . 
20 ( 
26 ] 

Apr. 3 , 

17 . 

24 . 

May 2 ^ 

6 . 

20 . 
June 5 ] 

22 ( 
July 14 ] 


5. J. Tompkins. 


Feet. 

1.74 

1.72 

1.67 

1.50 


Sec.-ft, 
7.3 


Apr. 6 

17 
27 


H. J. Tompkins 

do 

do 

J.C. Dort 


. , .do 

...do 

...do 




5.8 
2.5 
.1 


May 12 


...do 

...do 

...do 

...do 

...do 

...do 




■ ■ '"I 

"!'.".!! '"i." 23* 

1.70 


a.O 


22 
June 7 

23 
July 2 

13 
Dec. 29 


do 

do 

do 

H, J. Tompkins 

do 

J C Dort 


a.Q 
a.O 
a.O 
a.O 
.03 


1917. 


H.J.Tompkins 

J.C. Dort 


E. TompMn 
B. J. Tomp] 

...do 

...do 

...do 

:.. W. Sopp 
a. J. Tomp] 
...do.. ... 

...do 

...do 

:!. w. vSopp 

...do 

...do 

H. J. Tompl 
1 W. Sopp 
[I. J. Tompl 




6.3 


Jan. 10 
19 


dns. 


1.86 

3.10 

2.31 

2.64 

2. 22 


13 
506 


Feb. 2 
13 
16 


H. J. Tompkins 

Ernest Tompkins 

J C Dort 


99 

183 
52 


19 
21 


dns. 


1.84 

1.80 

1.72 

1.72 

1.70 


28 
15 


23 

26 

Mar. 5 


do 

H. J.Tompkins 

do 

J. C. Dort 


8.6 
7.2 
4.3 


14 


dns. 


1.66 

1.65 

1.60 

1.48 


4.4 


23 

31 

Apr. 11 


H.J.Tompkins 

'.V^Ao'.'////.'.'.'.'.'.'.'.'.'.'.'. 
J.C. Dort 


3.3 

1.7 
.12 


12 


dns. 




a.O 


23 


H. J.Tompkins 







ffl Stream dry. 

Daily discharge, in second-fee t, of Pacoima Creek near San Fernando, Calif, for 

1916-1918. 



Day. 


Mar. 


Apr. , 


May. 


June. 


July. 


Day. 


Mar. 


Apr. 


May. 


June. 


July. 


1916. 
1 












191^. 
16 . . . . 












2 










0.8 


17 




16 
16 
15 
15 
15 
13 








3 










18 








1 


4 












19 






1.2 


. 1 


5 












20 






6 




21 








21 










7 






3.2 




22 




6.6 


"'i.'9' 


. 1 


8 








23 






9 












24 




14 
13 






10 




18 

18; 








25 : 










11 










26 










12 




7.3, 






27 




13 








13 








.4 


28 - . 











14 




19. 






29 












15 










30 ' 




'"**'*' ': 




















31 


21 























U. S. GEOLOGICAL SURVEY 



WATER-SUPPLY PAPER 447 PLATE XV 









^" l*L ^^ 




CONCRETE WELL, HOUSE, AND CONTROL. 

A, Pacoima Creek near San Fernando, Calif.; B, Tujunga Creek near Sunland, Calif.; C, Haines 
Creek near Tujunga, Calif. 



U. S. GEOLOGICAL SURVEY 



WATER-SUPPLY PAPER 447 PLATE XVI 




A. WATERMAN CANYON CREEK NEAR SAN RERNARDINO, CALIF. 
Showing gravel and sand deposited by first high water after forest fire. 




B. FOUNDATION FOR GIRRALTAR DAM, ON SANTA YNEZ RIVER NEAR SANTA 
BARRARA, CALIF. 




C. CARLE SECTION ON SANTA YNEZ RIVER NEAR SANTA BARBARA, CALIF. 



LOS ANGELES KIVER BASIN. 



451 



Daikj discharge, in second-feet, of Facoima Creek near San Fernando, Calif., for 1916- 
1918 — Continued. 



Day. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1916-17. 
1 




23 
21 
19 
17 
15 

14 
14 
13 
12 
12 

11 
12 
14 
14 
14 

14 
13 
13 
19 
17 

16 
U 
14 
14 
14 

14 
14 
14 
14 
14 
13 


12 
12 
12 
12 
12 

11 
11 
11 
10 
10 

10 
10 
9.5 

8.5 
7.5 

11 
11 
11 
37 

141 
232 
165 
120 
123 

95 

■'88 
78 


68 
64 

57 
55 
53 

50 
46 
43 
39 
36 

32 
29 
26 
26 
25 

24 
22 
22 
21 
20 

19 
18 
17 
16 
18 

16 
15 
15 
15 
14 
14 


13 
12 
11 
11 

10 

9.5 
9.5 

10 

11 

11 

12 
10 
10 
10 
11 

\2 
13 
11 
10 
9 

8.5 

8.5 

8.5 

9 

9 

9 
10 
10 

9 

8.5 


8.5. 
7.5 
7.5. 
6.5 
6.5 

6.5 
6.5 
6.5 
6.5 
6.5 

6.5 
6.5 
5.5 
5.5 
6.5 

6.5 
6.5 
8.5 

12 

10 

8.5 
6.5 
5.5 
5.5 
6.5 

6.5 
5.5 
5.5 
5. .5 
4.5 
4.5 


4.5 
4.5 
4.1 
3.7 
3.7 

3.7 
3.3 
3.3 
3.3 
2.9 

2.9 
3.3. 
2.5 
2.1 
1.3 

.9 
.5 
.4 
.4. 
.4 

.4 
.4 
.4 
.3 
.3 

.3 
.3 
.3 
.2 
.1 


0.1 


2 


2.5 
4.5 

5 
4.0 

4.0 
4.0 
4.0 
3.0 
3.0 

3.0 
3.0 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 

425 

114 

64 
37 
28 
27 
27 
25 


.1 


3 


.1 


4 


.1 


5 


.1 


6 


.05 


7 


.05 


S 


.05 


9 


.05 


10. 


.05 


11 




12 




13 




14 




15 




16 . . . 




17.. 




18 




19 




20- 




21 




22 




23 




24. 




25 




26 




27 




2&.. 




29 




30 




31 











Note. — No gage-height record Dec, 31 to Jan. 5 and Jan. : 
record of flow oa Arr&yo Seco. Disehaa-ge interpolated Mar. 6 
able. No flow July 11 to Sept. 30. 



8 to Feb. 1; discharge estimated from 
-12 as gage-height record was not reli- 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1917-18. 
1 




0.1 

!o 

.0 
.0 
.0 
.0 
.0 
.0 
.2 

1.5 
.6 

1.5 

.5.0 
9.5 
5.5 
4.4 
10 

15 
13 
9.5 


7.5 

6.5 

6 

6 

6.5 

11 
191 

88 
44 
54 

230 

277 

165 

' 111 

85 

67 
61 

54 
56 
52 
46 
44 
42 
36 
32 

28 
25 
24 
22 
21 
19 


18 
17 
15 

14 
14 

13 
13 
12 
12 
11 
11 
10 
10 

9.5 

9 

8.5 

8.5 

8.5 

8 

8 

7.5 

7.5 

7 

7 

6.5 

6.5 

6 

5.5 

5.5 

5 


; 4.5 
4.3 
4.3 

4.4 
4.4 

4.4 
4.2 
4.1 
4.0 
3.9 

3.8 
3.7 
3.6 
3.5 
3.4 

3.3 
3.2 
3.1 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
3.0 
3.0 
3.0 
3.0 


3.0 

2.7 
2.4 
1.7 
1.5 

1.4 
1.2 
1.1 
.9 
.7 

.7 
.6 
.4 
.3 
.1 

.1 
.1 
.1 
.1 
.1 
.1 
.1 
.1 
.3 
.1 

.0 
.0 
.0 
.0 
.0 


1.1 


2 




7 


3 






4 












6 






7 






8 






9 






10 






11 






12 


0.1 

:o 

.0 
.0 
.0 
.0 




13 




14 




15 




16 




17 




18 




19 




20 




21 




22 




23 




24 




25 




26 




27 




28 ;... 




29 




30 




31 






■■ ■ 1 



No flow Oct. 1 to Jan. 11 and July 3 to Sept. 30. 

'", Mar. 20 to May 19, interpolated between measurements on account of shifting control. 



452 SUEFACE WATER OF PACIFIC SLOPB^ SOUTHEEN CALIFOElsTIA. 

Monthly discharge of Pacoima Creek, near Sa^i Fernando, Calif., for 1916-1918. 



1916-17. 
December 2-31... 

January 

February 

March.... 

April 

May 

June 

July 



The period . 



Discharge in second-feet 



Maxi- 
mum. 



425 

23 
232 

68 

13 

12 
4.5 



2.5 
11 
7 
14 
8.5 
4.5 
.1 
.00 



27.2 

14.7 

45.6 

30.1 

10.2 
6.70 
1.82 
.024 



Run-off 

(total 



acre- 
feet). 



1,620 

904 

2,530 

1,850 
607 
412 



8,030 



1917-18. 

January 

February 

March 

April 

May. 

June 

July 

The year 



Discharge in second -feet 



Maxi- Mini- 
mum, mum. 



0.1 
15 
277 
18 
4.5 
3.0 
1.1 



277 



0.0 
.0 

6 

5 

3.0 
.0 
.0 



Run-off 

(t9tal 



acre- 
feet). 



3.1 
153 

3,810 
583 
216 
29.4 
3.7 



Note. — No flow August to December, 1917, and August and September, 1918. Record for 1917-18 repre- 
sents full year. 

TUJUISTGA CREEK NEAR SUNLAND, CALIF. 

Location. — Near center of sec. 32, T. 3 N., R. 13 W. (unsurveyed), at a partly con- 
structed and abandoned dam, about 2 miles above mouth of canyon, and about 
4 miles northeast of Sunland, Los Angeles County. 

Drainage area. — 106 square miles (measured on topographic maps). 

Elevation. — About 1,600 feet above sea level. 

Records available. — October 28, 1916, to September 30, 1918. (Discharge measure- 
ments only, April 1 to August 27, 1916.) 

Gage. — Stevens continuous water-stage recorder on right bank just above dam. (See 
PI. XV, B.) 

Discharge measurements. — Made fi'om cable about 1,000 feet below gage or by 
wading at various sections near dam. 

Channel and control. — Gravel and boulders; apparently permanent. Control is 
concrete dam, which has a notch in center about 20 feet long and 1 foot deep, 
with steel angle set in the notch near downstream face. (See PI. XV, B.) Zero 
flow occurs at a gage height of about 0.45 foot. 

Extremes OF DISCHARGE. — 1916-1918: Maximum stage recorded, 3.35 feet at 4:30 
p. m. December 24, 1916 (discharge from revised rating curve defined by 1918 
measurements, 1,960 second-feet); minimum stage recorded, 0.47 foot at 5 p. m. 
August 29, 1917 (discharge, 0.2 second-foot). 

Diversions. — Two or three ranches divert a part of the low-water flow for irrigation 
above the station. There are two small diversions between gage and mouth of 
canyon. 

Regulation. — None. 

Accuracy. — Stage-discharge relation permanent. Frequent discharge measm-ements 
have been obtained and rating curA^e is well defined below 1,000 second-feet. 
Operation of the water-stage recorder generally satisfactory. Daily discharge 
ascertained by applying to the rating table mean daily gage height determined by 
inspecting recorder graph. Records for high water fair ; those for other stages gooda 



LOS ANGELES EIVEK BASIK. 453 

Discharge measurements of Tujunga Creek near Sunland, Calif., for 1916-1918. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by — 


height. 


Dis- 
charge. 


1916. 
Apr. 1 
10 


F. C. Ebert 

H. J. Tompkins . 


Feet. 


Sec.-ft. 

66 

53 

50 

41 

31 

29 

21 

14 

11 
8.3 
3.4 
2.0 

12 

33 

33 
124 
170 
123 

61 

41 

32 

22 

18 


1917. 
June 10 
Aug. 2 
Sept. 1 
12 
27 
Dec. 20 

1918. 
Jan. 22 
Feb. 16 

22 

Mar. 3 

8 

26 
Apr. 6 

17 
May 2 

15 

27 
June 7 

22 
July 3 

Sept. ^2 


H.J. Tompkins 

do 

do 

do 

do 

E. Tompkins. 


Feet. 
0.74 
.52 
.50 
.49 
.49 
.59 

.60 
.62 
2.57 
1.12 
2.35 
1.55 
1.23 
1.07 
.90 
.87 
.82 
.72 
.64 
.60 
.52 
.49 


Sec.-ft. 
11 
1.7 


19 

28 

Mav 12 


do 

do 

J. C. Dort 




.4 
.4 
.4 


22 


do 

do 




3.3 




C. W. Sopp . . 




23 


. do 






July 2 
13 

Aug. 11 
27 


H. J. Tompkins 




4.2 


do 

do 

J C Dort 




H. J.Tompkins 

do 

C W. Sopp 


4.4 
576 

38 


Nov. 6 


do 

H. J. Tompkins 

do 

J.C. Dort 


0.77 

1.86 
2.09 
1.84 
1.38 
1.16 
1.06 
.94 
.86 


H.J. Tompkins 

C. W. Sopp 


302 

82 


1917. 
Jan. 16 
Feb. 6 
21 


H.J. Tompkins 

do 

do 

do 

C. W. Sopp 


50 
33 
21 
17 


23 


do 

do 

H.J. Tompkins 

J. C. Dort 


16 


27 

Mar. 6 

19 


do 

do 

H.J.Tompkins 

C. W. Sopp 


9.6 
6.8 
3.3 


31 


do.. 

H. J. Tompkins 

do 


1.3 


Apr. 24 
May 5 


H.J. Tompkins 


.9 







o Correct gage height not known, as intake pipe was covered v/ith gravel. 
Daily discharge, in second-feet, of Tujunga Creek near Sunland, Calif., for 1916-1918. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1916-17. 
1 




10 

11 

12 
12 
13 

13 
13 

12 
12 
12 

13 
14 
13 
12 
12 

12 
13 
13 

14 
14 

13 
14 
14 
14 
14 

14 
14 
14 
14 
14 


14 
15 
20 
17 
15 

15 
14 
15 
15 
14 

14 
14 
14 

It 

14 
14 
14 
14 
15 

15 
15 
15 
288 
161 

66 
34 
33 
32 
32 
32 


32 
32 
33 
32 
■ 32 

32 
31 
31 
31 
31 

31 
32 

a2 

31 
31 

.33 
35 
40 
59 
. 49 

43 
41 
39 
37 
36 

35 
35 
35 
35 
34 
33 


33 
33 
33 
33 
33 

33 
32 
32 
31 
30 

29 
29 
29 

28 
28 

25 
39 
33 
34 
64 

120 
182 
166 
130 

182 

160 
125 
101 


87 
81 
75 
70 
64 

62 
59 
57 
58 
61 

58 
54 
51 
52 
50 

46 
44- 
42 
40 
40 

40 
38 
36 
35 
34 

33 
32 
32 
32 
32 
32 


30 
29 

28 
26 
25 

24 
24 
25 
29 

28 

26 
25 
24 
23 
23 

30 
37 
30 

28 
26 

24 
24 
24 
23 
21 

21 
21 
24 
24 
21 


20 
20 
19 
17 
17 

15 
16 
18 
20 
21 

20 
18 
17 
16 
16 

16 
16 
21 
23 
20 

18 
17 
19 
19 
19 

19 
17 
15 
15 

17 
17 


15 
14 
13 
13 
14 

14 
12 
12 
11 
10 

10 
10 
9.5 

8 

7 

6 

5.5 
5.5 
5.5 

5.5 

4.9 
4.9 
4.4 
4.4 
4.0 

4.0 
4.4 
4.0 
3.3 
3.3 


3.3 
3.0 
3.0 
3.0 
3.0 

3.0 
3.0 
2.6 
2.6 
2.6 

2.2 
2.2 
2.2 
1.9 
1.9 

1.6 
1.6 
1.6 
1.2 
1.2 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
1.9 
1.9 
1.6 


1.9 
1.6 
1.2 
1.2 
.8 

.8 
.8 
.5 
.5 
.4 

.5 
.5 
.5 
.5 
.5 


0.5 


2 




.5 


3 




.5 


4 




.8 


5 




.5 


6 




.5 


7 




.5 


8.. . . 




.8 


9 




.5 


10 . . 




.6 


11 




.5 


12 




.5 


13 




.5 


14 




.5 


15 





.4 


16 




.4 


17 




.4 


18 




.4 


19 . 




.4 


20 




.5 


21 




.5 


22 




.5 


23 




.5 


24 




.5 


25 




.4 


26 




.4 


27........ 

28 . . : 


10 
10 
10 


.4 
.4 


29 


.4 


30 


.5 


31 





Note.— Water-stage recorder not operating satisfactorily Dec. 1-6; Dec. 28 to Feb. 5; and Sept. 24-26. 
Discharge of these periods interpolated, except Dec. 28 to Feb. 5, estimated from hydrograph of Pacoima 
Creek and Arroyo Seco. 



-454 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA, 

Daily discharge, in second-feet, of Tujunga Creek near Sunland, Calif., for 1916-1918 — 

Continued. 



16.. 
17.. 
IS.. 
19.. 
20.. 



23.. 
24.. 
25.. 



29.. 
30.. 
31.. 



2.2 

1.9 
2.2 
2.2 



1.9 
2.2 



6.0 
6.5 
6.0 
5. 5 
4.9 



4.4 
4.4 
4.0 



S.3 

2.6 
2.2 



2.6 
2.6 
2.6 
3.3 



3.6 
3.3 
3.6 



3.6 
3.6 
4.0 
4.0 

4.0 
4.0 

4.0 
4.0 



4.4 
4.4 
4.4 
4.4 
4.4 



3.6 
3.6 
3.6 
3.6 



3.3 
3.0 
3.3 



3.6 
3.6 

4.0 

4.0 
4.4 



4.4 
4.4 
5.5 
5.5 

5.5 



4.0 
4.0 

4.0 
4.0 
4.4 
4.4 
4.9 

5.5 
4.9 
4.4 
4.9 
5.5 
5.5 



4.9 

4.9 

4.9 

4.4 

4.4 

6 

5.5 

4.9 

4.4 



12 
20 

104 
340 
123 



47 
41 
37 
33 

34 

59 
550 
420 
148 
199 

1,050 

1,150 

1,100 

704 

340 

183 
147 
131 
159 
140 



Apr. 



May. 



10 
9.5 



7.5 

7 



6.5 
6.5 



7.5 

8 



5.5 
4.4 
4.0 
4.0 
4.0 



July. 



5.5 
4.0 
3.3 
3.0 

2.2 
1.9 



.5 
.5 

1.2 
1.2 

r.2 

1.2 
1.2 



Aug. Sept. 



a 5 
.5 



0.4 
.4 
.4 
.4 
.4 

.4 
.4 
.4 
.4 
.4 

.4 
.4 
.4 
.5 
.5 

.5 
.5 
.5 



1.2 
2.2 
3.6 



Note. — No gage-height record June 4-6 and 22; discharge estimated. 

Monthly discharge of Tujunga Creek near Sunland, Calif, for 1916-1918. 





Bischarge in seeond-feet. 


Run-oflf 
(total in 
acre- 
feet). 


Mcaith. 


Discbarge in second-feet. 


Run-oflr 

(totalin 
acre- 
feet). 


Month. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


1918-17. 
October 28-31 .. 


10 
14 
. 288 
59 
182 
87 
37 
23 
15 
3.3 
1.9 
.8 


8.5 

10 

14 

31 

25 

32 

21 

15 
3.3 
1.2 
.3 
.4 


9.62 
13.0 
32.8 
35.3 
65.2 
49.3 
25.6 
18.0 
8.07 
1.99 
.60 
.49 


76.3 
774 
2,020 
2,170 
3,620 
3,030 
1,520 
1,110 
480 
122 
36.9 
29.2 


1917-18. 
OctobOT 


2.2 
6.5 
6 

5.5 
340 
1,150 
57 
24 
12 
6 
.5 
3.6 


0.3 
1.9 
3.0 
3.6 
4.4 

33 

24 

14 
4.0 

A 
.4 


0.74 

3.67 

4.14 

4.64 

41.4 

246 

35.9 

19.4 

7.43 

1.70 

.45 

.82 


45.5 


November 

December 

January 


November 

December 

January 


218 
255 
285 


February 

March 


February 


2,300 
15,100 


April 


April 

May 


2 140 


May 


1,190 


June 


June 


442 


July 


July 


105 


August 




27.7 


September 


September 

The year 


48.8 


The period... 








15,000 


1,150 


.3 


30.6 


22,200 











LOS AISTGELES EIVEK BASIN. 



455 



HAINES CREEK HEAR TUJUNGA, CAUF. 

Location.— In NE. i NE. i sec. 18, T. 2 N., R. 13 W., 800 feet above mouth of canyoa 
and 1^ miles northeast of Tujunga, Los Angeles County. 
. Drainage area. — 1.2 square miles (measured on topographic map). 

Elevation. — About 2,200 feet above sea level. 

Records available. — February 7, 1917, to September 30, 19l8. 

Gage. — Gurley graph water-stage recorder on right bank just above concrete control, 
about 800 feet above mouth of canyon. (See PI. XV, C.) 

Discharge measurements. — Made by volumetric method, when discharge was 
very small, and on crest of dam. A bridge ha.s been built 4 feet above dam for 
use during high water. 

Channel and control. — Boulders and gravel overlying solid rock; permanent. 
Both banks are high and fairly clean. A concrete dam, having a maximum 
height of about 5 feet above bedrock, was built across the channel at downstream 
face of gage well. A 12-foot concrete wing well was constructed at left end 
of dam. Crest of dam has a trapezoidal notch 6 inches wide on bottom and 1 
foot deep, which makes conti'ol mca-e sensitive for low stages. Zero flow occurs 
at a gage height of 0.23 foot. 

Extremes op discharge. — 1917-1918: Maximum stage recorded, 1.37 feet March 10, 
1918 (discharge, 6.8 second-feet); minimum stage recorded, 0.32 foot September 
20-30, 1917, and August 25 to September 12, 1918 (discharge, 0.03 second-foot). 

Diversions.— About a mile above the station a tunnel has been driven into the stream 
bed and a 4-inch pipe carries the water past the gage. This water is used for 
domestic supply at Tujunga. A similar tunnel, a short distance below the 
station, develops a small supply during the greater part of the year. 

Regulation. — A large number of small check dams, constructed of brush and boul- 
ders, have been built across the stream channel in the upper portion of the drain- 
age basin. 

Accuracy. — Stage-discharge relation permanent. Rating curve well defined. Oper- 
ation 01 water-stage recorder satisfactory throughout the period. Daily discharge 
ascertained by applying to the rating table mean daily gage height determined 
by inspecting recorder graph. Records excellent. 

Discharge measurements of Haines Creek near Tujunga, Calif., for 1917-18. 



Date. 


Made by — 


Gage 
iieight. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1917. 
Feb. 16 


H. J. Tompkins 

J.C.Dort 


Feet. 

0.50 

.50 

.48 

.36 


Sec.-ft. 

0.25 

.25 

.25 

.06 


1918. 

Feb. 22 

Mar. 7 

11 

13 

20 

Apr. 10 

Sept. 17 


E. Tompkins 


Feet. 
81 

1.12 
1.09 
1.17 
.88 
.65 
.34 


Sec.-ft. 
1.1 


Apr. 2 
12 


cVw. Sopp 


3 


do 


3 4 


Nov. 15 


H. J. Tompkins 


E. Tompkins 

H.J. Tompkins 

C. "W. Sopt). 


3.9 
1.7 
.6 




H. J. Tompkins 


.05 



456. SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Haines Creeh near Tujunga, CaliJ., for 1917-18. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1917. { 
K. ! 


j 






0.35 
.35 
.35 

.37 
.37 

.37 
.39 
.39 
.39 
.39 

.37 
.37 
.35 
.35 
.33 

.33 
.33 
.33 
.33 
.31 

.31 
.31 
.31 
.31 
.31 

.31 
.29 
.29 
.29 
.29 
.29 

.45 
.43 
.41 
.37 
.31 

.25 
1.3 

.7 

.65 
1.5 

3.2 
4.7 
4.2 
8.3 
2.6 

2.1 
1.8 
1.6 
2.0 
1.6 

1.4 
1.4 
1.3 
1.2 
1.2 

1.1 
1.0 
.95 
.95 

.85 
.8 


0.27 
.27 
.25 
.25 
.23 

.23 
.25 
.25 
.27 
.27 

.25 
.23 
.23 
.23 
.23 

.25 
.23 
.23 
.23 
.23 

.23 

.22 
.22 
.22 
.20 

.20 
.20 
.22 
.20 

.18 

.8 
.8 
.75 
.7 
.7 

.7 

.65 
.65 
.6 
.6 

.5 
.5 

.47 
.45 
.45 

.45 
.43 
.43 
.41 
.39 

.37 
.35 
.35 
.35 
.35 

.35 
.33 
.31 
.31 
.29 


0.17 
.17 
.17 
.17 
.17 

..17 
.17 
.17 
.17 
0.17 

.17 
.17 
.17 
.15 
.15 

.15 
.15 
.18 
.17 

.17 

.17 
.17 
.17 
.17 
.17 

.17 
.17 
.17 
.17 
.17 
.15 

.29 
.31 
.31 
.31 
.31 

.31 
.31 
.31 
.31 
.29 

.27 
.27 
.25 
.23 
.23 

.23 
.23 
.23 
.23 
.23 

.23 
.23 
.23 
.23 
.23 

.23 
.23 
.23 
.23 
.23 
.22 


0.15 
.17 
.17 
.17 
.15 

.14 
.12 
.12 
.14 

.14 

.14 
.12 
.11 
.10 
a. 10 

a. 09 
.09 
.09 
.10 
.10 

.10 
.10 
.10 
.10 
.10 

.10 
.10 
.09 
.09 
.07 

.20 
.18 
.17 
.17 
.17 

.17 
.17 
.17 
.18 
.23 

.23 
.22 
.20 
.20 

.20 

.20 
.15 
.17 
.17 
.15 

.15 
.17 
.15 

.17 
.17 

.14 
.14 
.15 
.15 
.15 


0.10 
.10 
.09 
.09 
.09 

.09 
.09 
.09 
.07 
.07 

.07 
.09 
.07 
.06 
.06 

.05 
.05 
.05 
.06 
.06 

.06 
.06 
.06 
.06 
.06 

.06 
.06 
.06 
.06 
.06 
.06 

.18 
.15 
.14 
.14 
.12 

.12 
.11 
.11 
.11 
.11 

.11 
.11 
.11 
.11 
.11 

.10 
.10 
.09 
.06 
.06 

.08 
.06 
.06 
.08 
.03 

.06 
.06 
.06 
.06 
.06 
.05 


0.06 
.06 
.06 
.06 
.06 

.06 
.06 
.06 
.06 
.06 

.08 
.06 
.06 
.06 
.06 

.05 
.05 
.06 
.05 
.05 

.05 
.05 
.05 
.05 
.05 

.05 
.05 
.05 
.05 
.05 
.05 

.05 
.04 
.04 
.04 
.04 

.04 
.04 
.04 
.04 
.04 

.04 
.04 
.04 
.04 
.05 

.06 
.08 
.08 
.06 
.06 

.05 
.05 
.04 
.04 
.03 

.03 
.03 
.03 
.03 
.03 
.03 


05 


2 i 










05 


3 1 










05. 


4 ' 










.05 


5. 1, . . 










05 


6 ' 










. 05 


7 ! 








0.33 
.33 
.35 
.29 

.29 
.31 
.31 
.29 
.27 

.27 
.33 
.27 
.29 
.31 

.41 
.43 
.35 
.35 
.41 

.37 
.35 
.35 


.05 


8 ! 








.05 


9. . . . i . . 






05 


10 ' 


...... |.... 




.05. 


11 






05 


12 






.05 


13 ........ 


i 




.05 


14 






05 


15 






.05 


16 






.05 


17 








.04 


18 








.04 


19 








.04 


20 








.oa 


21 








.03 


22 










.03 


23 










.03 


24 










.03 


25 


...........,...._. 




.03 


26 








.03 


27. 








03 


28 








.03 


29 










.03 


30 . 












.03 


31 














1917-18. 
1 


.03 
.03 
.03 
.04 
.04 

.04 
.04 
.04 
.04 
.04 

.04 
.04 
.04 
.04 
.04 

.04 
.05 
.05 
.05 
.04 

.04 
.04 
.04 
.04 
.04 

.04 
.05 
.04 
.04 
.05 
.05 


.05 
.05 
.05 
.05 
.05 

.09 
.09 
.07 
.07 
.07 

.07 
.07 
.06 
.06 
.06 

.06 
.07 
.07 
.06 
.06 

.06 
.07 
.07 
.07 
.07 

.06 
.06 
.06 
.06 
.06 


.06 
.06 
.07 
.07 
.07 

.07 
.07 
.07 
.07 
.07 

.07 
.07 
.07 
.07 
.06 

.06 
.06 
.06 
.06 
.06 

.06 
.06 
.06 
.06 
.06 

.06 
.06 
.06 
.06 
.06 
.06 


.06 
.06 
.06 
.08 
.06 

.06 
.08 
.06 
.06 
.06 

.06 
.08 
.06 
.06 
.07 

.07 
.07 
.07 
.07 
.07 

.06 
.06 
.06 
.08 
.06 

.07 
.07 
.07 
.07 
.06 
.07 


.07 
.09 
.09 
.07 
.07 

.07 
.07 
.06 
.06 
.06 

.06 
.06 
.06 
.06 
.06 

.06 
.10 
.10 
.10 
.12 

.31 
1.4 
.37 
.45 
.6 

.55 
.5 
.47 


.03 


2 


.03; 


3 


.03 


4 


.03 


5 


.03 


6 


.03 


7 . . 


.03 


8 


.03 


9 


.03 


10 


.03 


11 


.03 


12.. 


.03 


13 


.04 


14 


.05 


15 


.04 


16 


.04 


17 


.04 


18 


.04 


19 


.04 


20 


.04 


21 


.04 


22 


.04 


23 


.04 


24 


.04 


25 


.04 


26 


.04 


27 


.04 


28 


.04 


29 


.04 


30. 


.04 


31 









a Water-stage recorder not in operation; discharge interpolated. 
Note.— No gage-height record May 4-8; discharge interpolated. Feb. 21-22 and Mar. 7 and 10 hourly 
discharges were averaged. 



LOS AISTGELES RIVEPv BASIN. 457 

Monthly discharge of Haines Creek near Tujunga, Calif., for 1917-18. 





Discharge in second-feet. 


Run-off 

(total in 
acre- 
feet). 


Month. 


Discharge in second-fcet. 


liun-ofl 

(total in 
acre- 
feet). 


Month. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


1917. 
February 7-28... 


0.43 
.39 
.27 
.18 
.17 
.10 
.06 
.05 


0.27 
.29 
.18 
.15 
.07 
.05 
.05 
.03 


0.330 
.336 
.232 

.167 
.115 
.070 
;055 
.042 


14.4 
20.7 
13.8 
10.3 
6.84 
4.30 
3.38 
2.50 


1917-18. 
October 


0.05 
.09 
.07 
.07 

1.4 

4.7 
.8 
.31 
.23 
.18 
.06 
.05 


0.03 
.05 
.06 
.06 
.06 
.25 
.29 
.22 
.14 
.05 
.03 
.03 


0.041 
.064 
.064 
.064 
.219 

1.47 
.493 
.257 
.175 
.094 
.042 
.036 


2.52 


November 

December 

January 


3.81 


April 


3.94 


Mav 


3.94 




February 

March 


12.2 


July 


90.4 




April . . . . 


29.3 


September 


May 


15.8 




10 4 


The period o . 








76.2 


July 


5.78 










August 


2.58 




September 

The year.... 


2.14 




4.7 


.03 


.253 


183 



ARROYO SECO NEAR PASADENA, CALIF. 

Location. — Near south line of sec. 30, T. 2 N., R. 12 W. (unsurveyed), just below 
trail crossing at forest ranger station in Angeles National Forest, 1^ miles above 
mouth of Millard Canyon, 3 miles above Devils Gate, and 5J miles northwest 
of Pasadena, Los Angeles County. 

Drainage area. — 16.4 square miles (measured on topographic map). 

Elevation. — About 1,450 feet above sea level. 

Records available, — December 1, 1910, to September 30, 1918. 

Gage. — Gurley graph water-stage recorder installed September 30, 1916, on right 
bank just upstream from staff gage. Original staff was in two sections fastened to 
an alder tree on right bank 300 feet southeast of ranger station. Original datum 
has not been maintained. (See PI. XIV, C.) 

Discharge measurements. — ^Made from cable 115 feet below control or by wading, 

Channel and control. — Solid rock, gravel, and boulders; shifts slightly during 
high water. A concrete dam extending to bedrock was built across channel 15 
feet below recorder well in the fall of 1916. There is a notch in the crest 2 feet 
wide and 1 foot deep. (See PI. XIV, C.) 

Extremes of discharge. — 1910-1918: Maximum stage recorded, 12.5 feet February 
20, 1914 (discharge, 5,630 second-feet); minimum stage recorded, 0.77 foot, Octo- 
ber 7, 1917 (discharge, 0.07 second-foot). 

Diversions. — None. 

Regulation. — ^None. 

Accuracy. — Stage-discharge relation not permanent; since construction of concrete 
control the gravel shifts during high water. Rating curves usually well defined 
for low and medium stages. Staff gage read to hundredths usually twice 
daily. Daily discharge ascertained by applying to the rating table mean daily 
gage height read from staff gage; since October 1916, mean daily gage height 
determined by inspecting recorder graph. Records good for low and medium 
stages; high-water records fair. 



458 SURFACE WATER OF PACIFIC SLOPE, SOUTHERIT CALIFORNIA, 

Discharge measurements of Arroyo Seoo near Pasadena, Calif., for 1910-1918. 



Date. 


1910. 


Dec. 


1 


191 


. 


Keb. 


21 


Mar. 


1 


May 


2 


June 


21 


Nov. 


;-! 




3 


1912. 1 


.Tan. 


:ii 


Mat. 


17 


Apr. 


6 


8 


Bern. 


27 


Dee. 


24 


1913. 1 


Feb. 


ft 




8 


Mar. 


5 


Apr. 
ATav 






31 


1914. 1 


Ffth. 


7 




16 




2fi 


Mar. 


12 




30 


Apr. 


13 


Mav 


4 


Jime 


2 


Nov. 


7 


1915. 


Feb. 


18 




25 


Mar. 


15 




22 


Apr. 


26 


June 


15 


July 


3 


Nov. 


18 1 

1 



Made by— 



W. V. Hardy 

W.V.Hardy 

-...do 

....do 

....do 

F. C. Ebert.. 
Lasley Lee... 



F. C. Eber 

....do. 

....do. 



.do., 
.do.. 



F. C. Ebert 

....do.. 

....do.. 

....do.. 

....do.. 

....do.. 



F. C. Ebert 

....do... 

....do... 

....do... 

....do... 

....do.... 

....do... 

....do... 

....do... 



F. C. Ebert, 

....do.. 

....do.. 

....do.. 

....do-. 

....do.. 

....do.. 

....do.. 



Gage 
1 eight. 



Feet. 
3.44 



3.78 
3.85 
3.47 
3.30 
3.14 
3.14 



3.24 
3.62 
3.36 
3.10 
3.02 
3.23 



3.20 
3.81 
3.51 
3.27 
3. IS 
3. 15 



3.93 
3.74 
4.50 
3.97 
3.81 
3.58 
3. .55 
3.38 
3.25 



3.72 
3.84 
3.56 
3.46 
3.34 
3.22 
3.12 
3, 



Dis- 
charge. 



Sec.-ft. 
1.4 



13 

4.8 



2.2 
20 



2.6 
34 



14 
162 
40 
29 
14 
13 

7.3 

2 



7.1 

4.0 



! 



1916. 
Jan. 12 
22 

Feb. 10 

14 
Mar. 2 

30 
Apr. 7 

20 
May 4 

29 
June 26 
July 15 
Oct. 26 

1917. 
Jan. 5 

20 
Feb. 17 

21 

28 
Mar. 6 

30 
Apr. 14 

25 
May 13 

29 
Au£?. 27 
Oct. 16 
Dec. 21 

1918. 

Jan. 22 

Feb. 21 
22 

Mar. 7 
16 
23 
30 

Apr. 13 

May 6 
10 

June 5 
21 

July 22 



Made by— 



F.C. Ebert... 

do 

....do 

.--do 

-...do 

do-. 



H. J. Tompkins. 

do 

....do 

J. a Dort... 
H. J. Tompkins. 

do 

do 



H. J. Tompkim, 

do....... 

do 

.....do 

J. C. Dort... 
H- J. Tompkins 

do 

J. C. Dort.. 
H. J. Tompkins 

.....do 

do 

,...-do 

E. Tompkins-. 
H. J. Tompkins 



C. W. Sopp 

do 

do 

E. Tompkins.... 

C. W, Sopp 

do 

do 

H, J. Tompkins. 

do 

C. W. Sopp 

H. J. Tompkins. 

C. W. Sopp 

H. J. Tompkins. 



Feet. 
3.55 
4.18 
3.91 
3.80 
3.73 
3.58 
3.53 
3.47 
3.37 
3.29 
3.12 
3.08 
1.28 



1.92 
2.18 
1.98 
2.60 
2.24 
2.07 
1.86 
1.83 
1.77 
1.70 
1.56 



.94 



1.12 
2.50 
2.90 
3.64 
2.40 
2.15 
2.00 
1.92 
1.72 
1.73 
1.56 
1.50 
1.35 



Sec.-ft. 

14 

64 

35 

25 

21 

14 

13 
9.3 
7.7 
4.8 
2.4 
1.4 
2.2 



8.( 
26 



31 

21 

10 
6.2 
6.0 
4.8 
4.7 



1.0 
71 
129 
578 
46 
24 
14 
10 
4.8 
4.9 
2.3 
1.2 
.34 



LOS ANGELES RIVER ifeASIN. 459 

Daily discharge, in ^second-feet, of Arroyo Seco near Pasadena, Calif, for 1910-1918. 



'■ Day. 


Dec. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1910-11. 
1 


1.4 
1.6 
1.7 

1.8 
2.0 

2.1 
2.1 
2.0 
2.1 
2.0 

2.1 
2.0 
2.3 
2.8 
3.9 

4.2 
4.2 
4.6 
4.6 
5.0 

5.0 
5.6 
5.6 
6.0 
7.0 

7.0 
7.5 
. 7.5 
7.0 
7.0 
7.5 


63 
62 
62 
60 

^4 

44 
39 
34 
25 
25 

24 
22 
22 
21 
20 

19 
18 
16 
15 
14 

14 
14 
14 
14 
13 

21 
21 
21 
20 
20 


19 
19 
18 
14 
13 

11 

10 
9.0 
8.6 
8.6 

8.1 
8.1 
7.6 
8.6 
8.6 

8.6 
8.6 
8.6 
8.1 

8.0 

7.9 
7.9 

7.8 
7.7 
7.6 

7.5 
7.4 
7.4 
7.3 
7.2 
7.2 


7.2 
6.8 
6.8 
6.3 

5.8 

5.4 
5.4 
5.0 
5.0 
4.5 

4.2 
4.0 
4.0 
4.0 
4.0 

3.8 
3.8 
3.8 
3.8 
3.8 

3.8 
3.5 
3.5 
3.5 
3.5 

3.2 
3.2 
3.2 
3.2 
3.2 


3.2 
3.0 
2.8 
2.5 
2.5 

2.5 
2.2 
2.0 
1.8 
1.7 

1.6 
1.5 
1.5 
1.5 
1.5 

1.5 
1.4 
1.4 
1.4 
1.5 

1.4 
1.4 
1.4 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 
1.4 


1.3 
1.3 
1.3 
1.3 
1.3 

1.2 
1.2 
1.2 
1.2 
1.2 

1.2 
1.2 
1.2 
l.S 
1.2 

1.1 
1.2 
1.1 
1.0 

1.0 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.7 
.6 
.6 
.6 


O.S 


2 


.s 


3 


.6 


4 


.3 


5 


.5 


6 


.5 


7. 


.5 


8 


.5 


9 


.6 


10 


.6 


11 


.6 


12 


.6 


13 


.6 


14 


.6 


15 


.6 


16 


.6 


17 


.6 


18 


.6 


19 


.6 


20 


.8 


21 


.6 


22 . . .. 


.6 


23 


.6 


24 


.6 


25 


.7 


26 


.7 


27 


.7 


28 


1.0 


29 


60 


30 


31 


31 









Note. — Daily discharge determined from two fairlv well defined rating car\'es applicable as follows: 
Dec. 1 . 1910, to Mar. 10, 1911 ; and Mar. 11 to Sept. 30, 1911. No record during Jan. 1 to Mar. 31 , 1911. Dis- 
charge interpolated on days for which no gage height is given dui'ing Dec, 1910, and Apr. 1 to Dec. 31 , 1911 . 



Day. 


Oct. 


Nov. 


Dee. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1911-12. 
1 


al7 
3.2 
3.0 
2.8 
2.0 

1.9 
2.2 
02.0 
1.9 

1.8 

1.7 
1.5 
1.5 
1.9 
al.6 
1.4 
1.4 
1.4 
1.4 
1.4 

1.5 
1.5 
1.6 
1.7 
1.7 

1.8 
2.0 
2.5 
2.2 
2.0 
2.2 


2.2 
2.5 
2.0 
1.9 
«1.9 

1.9 

1.8 
1.8 
1.7 
3.0 

2.5 
02.4 
2.2 
2.0 
1.9 

1.9 
1.8 
1.8 
1.8 
1.7 
1.6 
1.5 
1.5 
1.5 
1.4 

1.4 
1.5 
1.5 
1.6 
1.5 


1.6 
1.6 
ol. 6 
1.7 
1.6 

2.2 
2.0 
2.0 
2.0 
a2.0 

1.9 

1.8 
1.8 
1.8 
1.7 
1.6 
01.6 
1.7 
1.7 
1.7 
1.7 
1.6 
al. 6 
«1.6 
al.6 

flL5 
«1.5 
01. 5 
«1.5 
«1.5 






j 
1 




"14 
14 
14 
14 

13 
13 
12 
ol2 
12 

12 
12 
12 
11 
10 

10 

9.5 

9 
08.7 
as. 4 

8.1 
7.2 
6.8 
6.8 
6.3 

a6.0 
5.8 
5.8 
5.4 
5.4 


5.4 
5.4 
5.0 
4.5 
4.5 
4.2 
4.2 
4.2 
4.0 
3.8 

3.5 
3.5 
3.5 
3.2 
3.0 
2.8 
2.5 
2.2 
2.0 
1.8 

1.7 
1.6 
1.5 
1.4 
1.3 
1.2 
1.0 
.9 
.8 
.8 
.0 


0.6 
.6 
.6 
.6 
.6 
.0 
.6 
.6 
.6 
.6 

.6 
.6 

!6 
.6 

.5 

.5 
.5 
.5 
.5 
.5 

\l 
«.5 
a. 5 

a. 6 
0.6 
.6 
.5 
.6 
.6 


0.5 


2 


i.7 

1.7 

1.8 
1.8 
1.8 
1.9 
1.8 
1.8 
1.8 

1.8 
1.9 






.6 


3 






.5 


4 














.5 


6 




1 1 


.0 


7 






.0 


8 






.5 


9 


1 


.6 


10 




.5 


11 


' 


.5 


12 




.6 


13 





6 


14 






.5 


15 




j 1 


.5 
.5 


16 




i 


17... 




1 1 


.5 


18 






.5 


19 




i ^ i 


.5 


20 




1.5 
1.5 




.5 


21 




! 


.5 


22 






.5 


23 




1. 5 






.5 


24 


1.5 









.6 


25 






15 

al5 
15 
15 
15 




26 




1 i 






27 


1.5 
1.5 








28 








29... 








30 






31 


3.0 


j 




15 





a Estimated. 
Note.— Daily discharge determined from a faiily well defined rating curve for 1911 and itoxa 
defined rating curve for low water for 1912. No estimates made for gage heights over 3.6 feet. 



a well 



460 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Daily discharge, in second-feet, of Arroyo Seco near Pasadena, Calif., for 1910-1918 — 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1912-13. 
1 


0.3 
.6 
.8 
2.8 
1.8 

1.0 
.9 
.9 

.8 
.9 

.0 
.5 
.6 
.5 
.4 

.4 
.4 
.4 
.4 
.5 

.6 
.5 
.6 
.6 
.5 

.G 
.5 
.5 
.6 
.5 
.5 


0.5 
.5 
.6 
.6 
.6 

.6 
.6 
.5 
.6 
1.0 

.8 
.8 
.6 
.6 
.G 

.6 
.5 
.5 
.6 
• G 

.7 
.7 

.7 

.8 

.8 

.8 
.8 
.7 
.7 

.8 


0.8 
.8 
.6 
.7 
.7 

.6 

.6 
.6 
.8 
.8 

.7 
.7 
.6 
.6 
.8 

.7 
.6 
.6 
.6 
.0 

.6 
.6 
.6 
.6 
.6 

.5 
.5 
.6 
.6 
.6 
.6 


0.7 
.7 
.7 
.6« 

.5^ 

.6 
.6 
.8 
1.2 
1.6 

1.0 
.9 
.9 
.9 

72 

16 
30 

8.2 






5.0 
5.0 
6.0 
5.0 
5.0 

5.0 
5.0 

4.8 
4.5 
4.3 

4.0 

3.8 
3.8 
3.8 
3.8 

3.8 
4.2 
4.6 
5.0 
5.0 

5.0 

4.4 
3.8 
3.4 
2.9 

2.5 
2.5 
2.5 
2.5 
2.5 


2.5 
2.5 
2.5 
2.5 
2.5 

2.2 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.4 
2.2 
2.2 

2.2 
2.2 
2.2 
2.2 

2.4 

2.4 
2.2 
2.2 
2.2 

2.4 

2.2 
2.4 
3.0 
2.4 
2.2 
1.9 


1.9 
2.0 
2.0 

'2.2 
2.2 

1.9 
2.0 
2.0 
2.0 

1.8 

1.9 
1.6 
1.3 
1.3 
1.3 

1.0 
1.0 
1.0 
1.2 

r.3 

1.0 
1.0 
1.0 
1.0 
1.0 

1.8 
3.8 
2.5 
1.6 
1.0 


1.2 
1.2 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
.9 

.7 
.7 

.8 
.7 
.7 
.5 

.8 

1.0 
1.0 
1.0 
1.0 
1.0 
- 1.0 


1.0 
1.2 
1.2 
1.2 
1.0 

.9 
.8 
.8 
.9 
.9 

.8 
.8 
.8 
.7 
.5 

.3 
.3 
.3 
.3 
.3 

.3 
.3 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 
.2 


7 


2 






1 


3 






1.0 


4 






.7 


5 






.3 


6 






.2 


7 






.2 


8 . 






.3 


9 






.2 


10 






.2 


11 






.2 


12 








13 . 








14 








15.. 








16 








17 . 








18 








19 








20 . 










21 










22 










23 










24.. . . 








.2 


25 . . 








.2 


26 








.2 


27 . . 








.2 


28 








.2 


29 








.2 


30 








.2 


31 



















Note.— Daily discharge determined from two fairly well defin.ed rating curves applicable Oct. 1, to Jan. 
15, and Jan. 16 to Sept. 30. Discharge estimated Sept. 12 to 23; discharge interpolated for other days for 
which record is not given. 



7.. 
8.. 
9.. 
10.. 



12.. 
13.. 



16.. 
17., 
18., 



21.. 
22.. 
23.. 
24., 
25.. 



29.. 
80.. 



.2 


1.5 


2 


11 


60 


87 


21 


17 


5.5 


3 


1.5 


.2 


1.5 


2 


8 


51 


95 


21 


16 


6 


2.5 


1.5 


.2 


1.5 


2 


5.5 


38 


104 


20 


15 


6.5 


2.5 


1.5 


.2 


1.5 


2 


4 


36 


104 


20 


13 


7 


2.5 


1.5 


.2 


2 


2 


3 


32 


92 


20 


12 


7 


2.5 


1.6 


.4 


2 


2 


2.5 


29 


92 


19 


12 


7.5 


2.5 


1.5 


.4 


2 


2 


2.5 


24 


72 


19 


11 


8 


2.5 


1.5 


.4 


2 


2 


2.5 


23 


62 


19 


11 


8 


2.5 


1.5 


.4 


2 


2 


2.5 


21 


54 


19 


11 


8 


2.5 


1.5 


.4 


2 


2.5 


2.5 


20 


54 


18 


10 


8 


2.5 


1.5 


.4 


2 


2.5 


2.5 


18 


54 


18 


10 


7.5 


2.5 


1.5 


.4 


4.5 


2.5 


2.5 


16 


47 


17 


10 


7 


2.5 


1.6 


.4 


20 


2.5 


2.5 


15 


47 


16 


9 


6.5 


2 


1.5 


.3 


12 


3 


4 


14 


33 


15 


9 


6 


2 


1.5 


.4 


5.5 


3 


24 


14 


32 


15 


9 


5.5 


2 


1.6 


.4 


4 


3 


67 


14 


31 


14 


9 


5.5 


2.5 


1.5 


.5 


3 


4 


160 


14 


31 


13 


8.5 


5 


2.6 


1.6 


.4 


7 


4 


497 


684 


27 


13 


8 


5 


2.5 


1.6 


4 


27 


4.5 


39 


712 


27 


12 


7.5 


4.5 


2.5 


1.5 


.4 


20 


5 


19 


3,690 


27 


12 


7.5 


4.5 


2 


1.6 


.4 


8 


5.5 


13 


1,820 


26 


17 


7 


5 


2 


1.6 


.5 


4.5 


5.5 


10 


'852 


26 


21 


7 


5 


2 


1.6 


.6 


3.5 


6 


8 


528 


25 


18 


7 


5 


2 


1.6 


.7 


2.5 


6.5 


19 


349 


24 


18 


7 


4.5 


2 


1.5 


.7 


2 


7 


386 


230 


24 


17 


6 


4.5 


2 


1.5 


.7 


2 


7.5 


1,750 


145 


24 


15 


6 


4 


2 


1.6 


.8 


2 


8 


500 


99 


24 


13 


6 


3.5 


2 


1.6 


.9 


2 


8.5 


257 


79 


24 


11 


6 


3 


2 


1.6 


1 


2 


9.5 


132 




27 


18 


6 


3 


1.5 


1.5 


1 


2 


15 


87 




27 


18 


5.5 


2.5 


1.5 


1.5 


1.5 




16 


65 




27 




5.5 




1.5 


2 



2 

1.5 

1.5 



1.5 
1.5 
1.5 
1.5 

1.5 
2 



2 

2 

2 

1.5 

1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

2 
2 
2 



Note.— Discharge determined from three rating curves fairly well defined below 400 second-feet. 



Daily 



LOS ANGELES EIVEH'BASISr. 461 

in second-feet, of Arroyo Seco near Pasadena, Calif., for 1910-1918 — Con. 



Day. 


Oct. 


Nov. 


Dee. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1914-15. 
1 


1 
1 

1.5 
1.5 
1.5 

1.5 

1 

1.5 

1.5 

1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

2 

2 

1.5 

1.5 

1.5 

1.5 
1.5 
1.5 
2.5 
2.5 
2.5 


2.5 

2 

1.5 

.8 
.8 
.9 
.8 

.8 
.7 
.5 
.8 
.3 

.3 
.2 
.2 
.3 
.3 

.3 
.3 
.3 

:i 

.3 
.3 
.3 
.4 
.5 


1 

2 
1.5 

1 
1 

1 

1 

1 

1.5 

3.5 

3.5 

L 

2.5 
2.5 

4 
28 
30 
32 
31 

33 
41 
42 
36 
30 

25 

17 

11 
6.5 
3.5 
2.5 


1.5 
1.5 

3 

3.5 
12 
349 
223 
77 


22 
117 
435 
72 
26 

21 
18 
16 
200 
238 

130 

62 
50 
41 
20 

24 
23 
22 
21 
26 

23 
23 
22 
32 
37 

' 26 
20 
22 


30 
29 
26 
25 
23 

23 
22 
21 
19 
18 

17 
16 
16 
16 
15 

15 
14 
14 
14 
13 

13 
12 
12 
11 
11 

11 
11 
16 
12 
11 
10 


10 
10 
10 
11 
12 

10 
9 
9 
9 
9 

9 

8.5 
9 

10 
9 

8 

8 

7.5 

7 

6.5 

7.5 

8 

8 

7.5 

7.5 

7.5 
7.5 

10 

17 

17 




17 
16 
17 
21 
22 

18 
16 
15 
14 
13 

12 
12 
12 
11 
11 

11 
11 
10 
10 
9.5 

9 
9 
9 
9 

8.5 

8 

8 

8 

7.5 

7.5 

7.5 


7 

7 

6.5 

6.5 

6 

6 
6 
6 
6 
6 

6 

6 

5.5 

5.5 

5.5 

5 

5 

4.5 

4 

3.5 

3.5 

3.5 

3.5 

3 

3 

3 

2.5 

2.5 

2.5 

2 


2 
2 
2 
2 
2 

2 

1.5 

1.5 

1.5 

1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1 
1 

1 

1 

1 
1 
1 
1 

1 
1 
1 
1 
1 
1 


1 

.9 
.9 

.8 
.8 

.8 
.8 
.8 
.8 
.8 

.8 
.8 
.8 
.7 
.7 

.7 
.6 
.7 
.6 
.6 

.5 
.5 

.8 
.9 
.8 

.8 
.8 
.8 
.7 
.7 
.7 


.8 


2 


.8 


3 .. 


.8 


4 


.8 


5 


.8 


6 . 


.8 


7 


.8 


8 


.8 


9 . • 


.8 


10 


.8 


11 


.8 


32 




13 . . 


g 


14 


.8 


15 


.8 


16.... 


.8 


17 


.8 


18 


.8 


19 


.8 


20 


-8 


21 

22 


.8 

.8 


23 


.8 


24 


.9 


25 


.9 


26 


.9 


27 


.9 


28 


.9 


29 


.9 


80 


.8 


31 









Note. — Discharge determined from two rating curves as follows: Oct. 1 to Feb. 3, poorly defined; Feb. 4 
to Sept. 30, well defined between 1 and 200 second- feet. 



1915-16. 
1 


.8 
.8 
.8 

.'s 

.8 
.8 

;l 

.8 

.8 
.8 
.8 
.8 
.8 

.8 

.8 

'.8 
.8 
.8 


.8 
.8 
.8 
.8 
.9 

3 
2 
2.5 










11 
8.5 
9.5 

10 

11 

12 
11 
11 
11 
11 

11 
11 
10 
10 
10 

10 
10 
10 
10 
10 

10 
9 

8 
8 
8 

8 

7.5 

8 

8.5 

9 


9 
9 
9 
9 
6 

7 

7 

6.5 

6 

5.5 

5.5 

6 

6 

5.5 

5.5 

\ 

5.5 

8 

6.5 

6 

5,5 

5 

6 

6 

5 

5 
5 

5 
5 


5 

4.5 

4.5 

4 

4 

4 

3.5 

3.5 

3 

3 

3.5 

3 

3 

3 

2.5 

2.5 
2.5 
2.5 
2.5 
3 

3 

3 

2.5 

2.5 

2.5 

2.5 
2.5 
2.5 
2 

2 


1.5 

1.5 

1.5 
1.5 

L5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 

.9 

1 
.8 


0.8 
.8 
.8 
.9 

.6 
.6 

.8 

.8 
.8 

1.5 

.8 
.8 
.7 
.6 

.7 
.7 


0.8 


2 








21 




3 










4 
























6 












7 












8 












9 


3.5 
3 

3 
2 
2 
2 
2 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 












10 






35 






11 








12 




14 








13 








14 






25 






15 








16 












17 




1,930 









18 








19 












20 












21 












22 


....... 


58 
42 
51 
65 








23 








24 








25 


.... '.'. 






26 




... 




27 












28 












29 . .. 












30 








14 




31 











Note.— Discharge estimated mostly by interpolation, Nov. 14-17, 21, 28-30; Apr. 1, 3, 4, 11-14, 21-23,5 
and May 9. Discharge July 6-13 estimated from observers' notes and rainfall record. 



462 SURFACE WATEE OF PACIFIC SLOPE, SOTJTHEIlJSr CALIFORNIA. 

Daily discharge, in second-feet, of Arroyo Seco near Pamdena. Calif. ^ for 1910-1918 — Con. 



Bay. 


Oct. 


Not. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jtme. 


July. 


Aug. 


Sept. 


1916-17. 
1 


3.1 

40 
15 

6.5 
4.5 

10 
9 
6 

5 

8 

8.5 
6.5 
5.5 
4.8 
4.5 

3.6 
3.3 
3.0 
2.9 
2.9 

2.6 
2.7 
2.9 
2.9 
2.2 

2.2 
2.2 
2.3 
2.5 
2.4 
2.2 


2.1 
2.2 
2.2 
2.7 
4.3 

3.5 
3.1 
3.0 
2.9 

2.8 

2.5 
2.6 

2.7 
2.6 
2.7 

2.7 
2.7 
2.6 
2.6 
2.5 

2.3 
2.2 
2.2 
2.2 
2.2 

2.2 
2.2 
2.2 
2.2 
2.2 


2.2 

2.9 

8 

6.5 

4.3 

3.6 
3.1 
2.9 

2.9 

2.8 

2.7 
2.7 
2.6 
2.6 
2.5 

2.5 
2.5 
2.5 
2.5 
2.6 

2.7 
2.7 
2.9 
272 
59 

26 
12 
10 

9 

9 

8.5 


8.5 
8 
10 
9 

8.5 

8 
8 

7.5 
7.5 

7 

7 

7.5 

9 

8 

8 

10 
10 
12 
40 
30 

25 
21 
20 
18 
17 

14 
13 
12 
12 
12 
12 


11 
11 
11 
10 
10 

10 
10 

9.5 

9 

9 

9 
9 
9 
9 

8.5 

8 
14 
10 
10 
34 

72 
120 
66 
46 
63 

50 
40 
36 


33 
30 
26 
32 
21 

20 
19 
18 
20 
19 

17 
16 
16 
16 
16 

14 
14 
13 
13 
12 

12 
12 
12 
11 
11 

11' 
11 
10 
10 
10 
10 


0.5 

9.5 

8 

7.5 

7.5 

7 
7 

I 

8 

7.5 
7 

6.5 
6.5 

7 

8 

8 

7,5 

7 

6.5 

6 
6 
6 
6 

5.5 

6 

6 

7 

6.5 

6 


6 

5.5 
5.5 
5.5 

5 

5 

5 

5.5 

5.5 

5.5 

5.5 

5 

5 

5 

5 

4.9 
4.9 

7 
6 
5 

5 
5 
5 

5.5 

5.5 

5 
5 
5 

4.7 
4.8 
4.8 


4.2 
3.7 
3.6 
3.6 
3.6 

3.4 
3.2 
2.9 
2.9 
2.7 

2.7 
. 2.6 
2.2 
2.0 
1.6 

1.4 
1.1 
1.0 
1.0 
1.1 

1.1 
1.1 
1.1 
1.0 
.9 

1.0 
1.0 
.9 
.9 
1.0 


0.8 
.8 
.8 
.7 

.7 

.7 
.7 
.6 
.6 
.6 

.5 
.6 
.6 
.6 

.7 

.7 
.7 
.6 
.6 
.6 

.5 
.5 
.5 
.5 
.5 

.5 
.5 

.4 

.4 
.4 
.4 


0.4 
.4 

.5 
.5 
.5 

.5 
.4 
.4 
.4 
.4 

.4 
.4 
.4 
.5 
.5 

.4 
.4 
.4 
.3 
.3 

.3 

!3 
.3 
.3 

.3 
.3 
.2 
.2 
.2 
.2 


0.2 


2 


.1 


3 ,. 


.1 


4 


.1 


5 


.1 


6 


.1 


7 


.2 


8 


.2 


9 


.2 


10... 


.1 


11 


.1 


12 


.1 


13 


.1 


14 


.1 


15 


.1 


16... 


.1 


17 


.1 


18 


.1 


19 


.1 


20 


.1 


21 


.2 


22 


.S 


23 


.2 


24 


.2 


25. 


.2 


26 


.2 


27. - .. 


.2 


28 


,1 


29 


.1 


30 


.1 


31 









Note.— Water-stage recorder not in operation Dec. 11-14 and Sept. 21-30; dischaige interpolated Dec. 
24, hourly discharges averaged. 



16.. 
17.. 
18.. 
19.. 
20,. 



27.. 

28.. 



30.. 
31.. 



1.0 
.9 



1.0 
1.0 
1.0 



1.0 
1.0 
1.3 
1.1 
1.1 



1.1 
1.1 
1.0 



1.1 
1.0 
1.1 



1.1 
1.1 
1.1 
1.1 
1.1 

1.1 

1.5 
1.1 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.7 
3.4 
2.4 
3.9 



13 
246 
65 
32 
172 

342 
314 
160 



6.5 
6.5 



6.5 

7 



6.5 
5.5 



4.9 
4.4 
4.2 
4.2 

4.4 

4.7 
4.7 
5.5 
5.5 
5.0 

4.7 
3.9 
3.7 
3.6 
3.4 

3.6 
3.7 
3.7 
3.7 
3.6 

3.6 
3.6 
3.4 
3.4 
3.4 

3.4 
3.2 



2.9 
2.6 
2.5 
2.5 
2.4 

2.3 

2.2 
2.2 
1.9 

1.8 

1.9 
1.8 
1.7 



1.4 
1.4 



1.5 
1.5 



1.4 
1.3 
1.3 



1.1 
1.0 
1.1 



1.4 
1.3 
1.2 
1.1 
1.0 



.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
1.1 
.7 



.6 
.4 
.4 



HoTE.— No gage-height record Oct. 1-5, 18, 19, 26, and Sept. 24-27; discharge estimated. Mar. 7 and 10 
hourly disciiarges were averaged. 



LOS AJN^GELES KIVER BASIIT. 



46S 



Monthly discharge of Arroyo Seco near Pasadena, Calif., for 1910-1918. 
{Drainage area, 16.4 square miles.] 



Discharge in second-feet. 



Per 
square 
mile. 



Run-off. 



Depth in 
inches on 
drainage 



December. . 

April 

May , 

June 

July 

August 

September . 



7.5 

63 

19 
7.2 
3.2 
1.3 



13 
7.2 
3.2 
1.4 



4.10 
27.7 
9.55 
4.37 
1.78 
1.04 
3.60 



0.250 
1.69 
.582 
.266 
.109 
.003 
.220 



The period. 



1911-12. 

October 

November 

December 

May 25-31 

June 

July 

August 

September 1-24 



17 

3.0 

2.2 
15 
14 

5.4 



October., 

November 

December 

January 1-18. 
April 



1912-13. 



June 

July 

August 

September . 



2.8 
1.0 
.8 
72.0 
5.0 
3.0 
3.8 
1.2 
1.2 
1.0 



October 

November . . 
December. 

January 

February . . , 

March 

April 

May 

June 

July 

August 

September . 



16 

1,750 

3,690 

104 

21 

17 

8 

3 



The year.. 



October 

November . . 
December. . 

January 

February . . 
March. .... . 

April 

May 

June 

July 

August 

September . 



2.5 
2.5 

42 
349 
435 

30 

17 

22 
7.0 
2.0 
1.0 



The year 

1915-16. 



October . 
November . 

April 

May 

Jmie 

July 

August 

September. 



3.5 

12 



1.4 
1.4 
1.5 
15 
5.4 
.6 
.5 
.5 



2.38 
1.86 
1.70 
15.0 
9.94 
2.77 
.56 
.53 



.145 
.113 
.104 
.915 
.606 
.169 
.034 
.032 



.3 
.5 

.5 
.5 
2.5 
1.9 
1.0 
.5 
.2 



.09 
.GO 
.64 
7.66 
4.08 
2.36 
1.62 
.94 
.56 
.25 



.042 
.040 
.039 
.467 
.249 
.144 
.099 
.057 



.2 
L5 
2 
2.5 

14 

24 

11 
5.5 
2.5 
1.5 
1.5 
1.5 



.51 
5.12 
4,82 
132 
344 
46.8 
16.9 
9.18 
5.62 
2.23 
1.52 
1.77 



.031 
.312 
.294 
8.05 
21.00 
2.85 
1.03 
.560 
.343 
.136 



45.5 



1.0 
1.0 

16 

10 
6.5 
7.5 
2.0 
1.0 
.5 



.67 
12.9 
22.5 
64.1 
16,6 
9.30 
11.9 
4.75 
1.37 



.041 
.787 
1.37 
3.91 
1.01 
.567 
.726 
.290 
.084 
.046 
.050 



726 



7.5 
5 



.76 
1.72 
9.73 
6.16 
3.07 
1.36 

.89 
a .83 



.046 
.105 



.376 
.187 



.054 
' .051 



0.29 
1.89 
.67 
.30 
,13 
,07 
.25 



,17 
.13 
.12 
.24 
.68 
.19 
.04 
.03 



.04 
.04 
.31 
.28 
.17 
.11 
.07 
.04 
.02 



,04 
,35 
,34 
9.28 
21.87 
3.29 
1.15 
.65 
.38 
.16 



,11 

.05 
.91 
1.58 
4.07 
1.16 
,63 
,84 
.32 
.10 
.05 



464 SURFACE WATER OF PACITIC SLOPE, SOUTHERN CALIFORNIA. 

Monthly discharge of Arroyo ISeco near Pasadena, Calif., for 1910-1918 — Continued. 





Discharge in second-feet. 


Run-off. 


Month. 


Maximum. 


Minimum. 


Mean. 


Per 
square 
mile. 


Depth ixi 

inches on 

drainage 

area. 


Total in 
acre-feet. 


1916-17. 
October 


40 
4.3 
272 
40 
120 
33 
9.5 
7 

4.2 
.8 
.5 
.3 


2.2 
2.1 
2.2 
7 
8 
10 
5.5 
4.7 
.9 
.4 
.2 
.1 


5.80 
2.57 
15.4 
12.9 
25.5 
16.0 
7.05 
5.25 
2.02 
.590 
.365 
.140 


0.354 
.157 
,939 
.787 

1.55 
,976 
.430 
,320 
.123 
,036 
.022 
,0085 


0.41 
.18 

1.08 
.91 

1.61 

1.13 
.48 
.37 
.14 
.04 
.03 
.01 


357 


November 


i53 


December 


947 




793 


February 


1,420 
984 


March 


April 


420 


May 


323 




120 


July 


36.3 




22.4 


September 


8.3 






The vear 


272 


.1 


7.71 


.470 


6.39 


5,580 




1917-18. 
October 


.4 
1.0 
1.0 
1.3 
107 
342 
14 
5.5 
2.9 
1.4 
.5 
1.1 


.1 
.2 
.8 
.8 
1.0 
6 

5.5 
3.1 
1.0 
.2 
.2 
.2 


.213 
.540 
.890 
1.02 
11.6 
62.7 
9.08 
3.97 
1.71 
.561 
.284 
.403 


.013 
.033 
.054 
.062 
.707 
3.82 
.554 
.242 
.104 
.034 
.017 
.025 


.01 
.04 
.06 
.07 
.74 
4.40 
.62 
.28 
.12 
.04 
.02 
.03 


13.1 




32.1 




54.7 


January . . 


62.7 




644 


March 


3,860 


April 


530 


May 


244 




102 


July 


34.4 




17.5 




24.0 






The year 


342 


.1 


7.77 


.474 


6.43 


5,620 



EATON CREEK NEAR PASADENA, CALIF. 

Location. — Near line between sees. 2 and 11, T. 1 N., R. 12 W., at mouth of canyon 
just above Mount Wilson toll bridge, about 4 miles northeast of Pasadena, Los 
Angeles County. 

Drainage area.' — 6.5 square miles (measured on topographic map.) 

Records available.^ — March 1 to September 30, 1918. 

Gage. — Gurley graph water-stage recorder with temporary well and house, on left 
bank just above toll bridge. 

Discharge measurements. — Made by wading near gage. 

Channel and control. — Gravel and boulders, fairly permanent. (See PI. XIV, 
B, p. 423.) 

Extremes of discharge. ^ — Maximum stage, from water-stage recorder, 3.47 feet at 
4 a. m. March 11 (discharge, 168 second-feet); no flow May 13 to September 30. 

Diversions. — The Precipice Canyon Water Co. diverts above the station; see monthly 
discharge, page 465. 

Regulation.^ — None. 

Accuracy.— Stage-discharge relation permanent during period. Rating curve fairly 
well defined throughout. Daily discharge ascertained by applying to the rating 
table mean daily gage height determined by inspecting recorder graph except 
on March 7, when hourly discharge was averaged. Records good. 



LOS ANGELES RIVER BASIN, 



465 



Discharge measurements of Eaton Creeh near Pasadena, Calif., for the year ending 

Sept. 30, 1918. 



Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Feb 22 


C W. SoBp 


Feet. 
1.98 
1.37 
1.12 

.88 
2.44 
1.66 


Sec-ft. 
41 
8.1 
2.3 
.55 
76 
18 


Mar. 23 
29 

Apr. 5 
12 
20 
26 


H. .T. Tomokins 

do.../. 


Feet. 
1.48 
1.24 
1.20 
1.10 
.98 
.98 


Sec-ft, 
10 


25 


E. Tompkins 


4.2 


Mar 1 


C W. Sopp 


do 

. . do 


3.1 


4 


Ebertand Sopp 

Sopp and Tompkins.- . . 
H. J. Tompkins 


2.3 


11 


do 


.85 


16 


do 


1.2 









Daily discharge, in second-feet, of Eaton Creeh near Pasadena, Calif., for the year ending 

Sevt, 30, 1918. 



Day. 



7.. 
8.. 
9.. 
10.. 



Mar. 


Apr. 


May. 


2.3 


3.6 


0.25 


1.9 


3.6 


.1 


1.2 


3.4 


.15 


.6 


3.4 


.3 


.7 


3.4 


.35 


4.6 


3.3 


.25 


60 


3.1 


.15 


38 


2.8 


.05 


19 


2.4 


.05 


36 


2.3 


.04 



Day. 



Apr. May. 



0.02 
.01 



13 
12 
11 

8.5 



May. 



Note. — Gage-height record started Mar. 1. Discharge Feb. 22 and 24 same as measurements made on 
those dates. No flow May 13 to Sept. 30. 



Monthly discharge of Eaton Creeh near Pasadena, Calif., for the year ending Sept. 30, 1918. 





Discharge in second-feet. 


Run-off 

(total 
in 

acre- 
feet). 


Month. 


Discharge in second-feet. 


Run-ofl 
(total 


Month. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


in 

acre- 
feet). 


March 


105 
3.6 

.35 
.00 
.00 


0.6 
.4 
.00 
.00 
.00 


20.9 
1.87 
.055 
.00 
.00 


1,290 
111 

3.38 
.00 
.00 


August 


0.00 
.00 


0.00 
.00 


0.00 
.00 


00 


Anril 


September 

The period. . 


00 


M^y 




June 








1,400 


July 















Note. — Discharge of Precipice Canyon Water Co.'s diversion should be added to above table to give 
total run-oft" of Eaton Creek. For monthly discharge of this diversion see following table. 

Monthly discharge of Precipice Canyon Water Co.'s, diversion near Pasadena, Calif, 
for the year ending Sept. 30, 1918. 



Discharge 
in second- 
feet 
(mean). 



Run-off 
(total in 
acre-feet). 



Discharge 
in second- 
feet, 
(mean). 



Run-off 
(total in 
acre feet). 



March., 
April.. 
May — 
Jmie..., 
July... 



2.40 
2.00 
2.80 



119 

172 



August 

September. . 



0.54 
.51 



33 
30 



The period . 



Note.— Table compiled by U. S. Geological Survey from records submitted by W. I. Allen, manager of 
Precipice Canyon Water Co. 



142131°— 21— wsp 447- 



-30 



466 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORFIA. 



SANTA ANITA CREEK NEAR SIERRA MADRE, CALIF. 

Location.— In SW. i NE. l sec. 10, T. 1 N., R. 11 W., at head of what are known 
locally as "Hermit's Falls, " about 4 miles northeast of Sierra Madre, Los Angelea 
County. 

Drainage area. — 10.5 square miles (measured on topographic map). 

Elevation. — ^About 1,400 feet above sea level. 

Records available. — July 31, 1916, to September 30, 1918. 

Gage. — Stevens water-gage recorder on right bank of pool at head of Hermit's Falls. 
(See PL XI, C, p. 236.) 

Discharge measurements.— -Made from cable 300 feet below gage or by wading at 
lower end of gage pool. 

Channel and control. — Channel at gage is pool in bedrock; is rough and steep 
above and below pool. Both banks are high, clean, and not subject to overflow. 
Control, which is bedrock, is the same for all stages and is permanent. Zero 
flow, stage 0.47 foot. 

Extremes of discharge. — 1916-1918: Maximum stage from water-stage recorder, 
4.75 feet March 11, 1918 (discharge, 248 second-feet) ; minimum stage from water- 
stage recorder, 0. 74 foot September 11-12, 1918 (discharge, 0. 3 second-foot). 

Diversions. — None above. 

Regulation. — None. 

Accuracy. — Stage- dischai-ge relation permanent. Rating curve well defined. Water- 
stage recorder not operating satisfactorily during November and December, 1916, 
and January, 1917. Mean daily gage height determined by inspecting recorder 
graph. Daily discharge ascertained by applying mean daily gage height to 
rating table. Records fair for period when water-stage recorder was not operating 
satisfactorily; remainder of record good. 

Discharge measurements of Santa Anita Creeh near Sierra Madre, Calif., for 1916-1918.. 



1916. 
Apr. 13 

18 
May 3 

24 
June 16 

29 
Aug. 24 
Sept 24 
Oet. 24 

1917. 
Feb. 3 



Made by— 



H. J. Tompkins. . 



.do.. 



-do.. 



J.C.Dort 

do 

H. J. Tompkins. . 

do 

do 

do 



H. J. Tompkins. 

do.. 

do.... 

do.. 

....do.. 
....do.. 



Txage 
height. 



1.22 
1.59 
2.89 
2.85 
2.32 
2.31 



Dis- 
charge. 



See. ft. 

14 

15 

10 
7.8 
4.4 
3.8 
1.7 
1.8 
2.9 



5.2 
18 



50 



1917, 
Mar. 2 
Apr. 18 



Dec. 22 

1918. 
Jan. 15 
Feb. 26 
Mar. 4 
27 
Apr. 9 
June 4 
July 6 
Aug. 2 
Sept. 3 



Made by— 



J. C.Dort 

H. J. Tompkins. . 
do 



Tompkins and Sopp. . 

C. W.Sopp 

H. J. Tompkins 

do 

do 

do 

do 

do 

do 



Gage Dis- 
height. charge. 



Feet. 
1.74 
1.22 



1.65 
1.14 
1.50 
1.30 
1.05 
.91 
.80 
.77 



Sec.-ff. 



.5 
.3 



19 
15 



1.3 

.44 

.55 



Dailif discharge, 



I second-feet, of Santa Anita Creeh near Sierra Madre, CaUf., for 1916- 
1918. 



Day. 


Aug. 


Sept. 


Day. 


Aug. 


Sept. 


Day. 


Aug. 


Sept. 


1.. 


1916. 


2.3 
2.1 
2.1 
2.1 
2.1 
2.1 
2.1 
2.1 
2.1 
2.3 


L7 
1.7 

1.8 
L8 
L8 

L9 
1.9 
l.R 

1.8 
L8 


11. 
12. 
13. 
14.. 
15. 
16. 
17. 
18 


1916. 


2.3 
2.3 
2.3 
2.3 
2.3 

2.4 
2.4 
2.5 
2.3 
2.4 


1.7 
1.6 
1.6 
LS 
1.6 
1.6 
1.6 
1.6 
1.6 
1.6 


21. 
22. 
23. 
24. 
25.. 

26. 
27. 
28. 
29. 
30. 
31. 


1916. 


2.4 
2.3 
2.1 
1.9 
1.7 

1.7 
L7 
1.7 
1.7 

1.7 
1.7 

- 


1.6 


2 






«1.7 


3 




.,. 


oL7 


4 






1.8 


5 






1.8 


6 






L9 


7 






1.7 


8 






X.ft 


9 


19.. 
20.. 






1.6 


10 _ _ 






3.1 



















o No gage-height record, discharge interpolated. 



LOS ANGELES RIVER BASIN. 



467 



Daily discharge, m second-feet, of Santa Anita Creelc near Sierra Madre, Calif. ^ for 
1916-1918~Coniinued. 



Day 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1916-17. 
1 


7 
32 
8 
5 
4.5 

9 

5.5 

4.7 

4.3 

6 

4.7 
4.3 
4.2 
4.2 
3.8 

3.0 
2.9 
3.0 

2.9 

2.8 

2.8 
3.0 
3.0 
2.9 
2.5 

2.5 
2.6 
2.9 
2.9 

2.8 
2.8 


2.8 
2.8 
2.8 
2.8 
3.0 

3.0 

2.8 
2.8 
2.8 
2.8 

2.8 
3.0 
2.8 
2.8 
2.7 

2.7 
2.6 
2.6 
2.5 
2.5 

2.4 
2.4 
2.3 
2.3 
2.2 

2.2 
2.1 
2.1 
2.0 
2.0 




2.1 
2.5 
6.5 
3.6 
2.9 

2.8 
2.8 
2.8 
2.7 
2.7 

2.7 
2.6 
2.6 
2.6 
2.6 

2.5 
2.5 
2.5 
2.4 
2.4 

2.4 
2.4 
3.0 
100 
25 

13 
7.5 
6.5 
6 

5.5 
5.5 


5.5 
5.5 
5.5 
6.5 
6 

5 

4.5 

4.5 

4.0 

4.0 

4.5 

4.5 

5 

4.7 

6 

5.5 

5 

7 
24 
20 

15 
12 
11 
10 

9 

8.5 

8 

8 

7.5 

6.5 

6.5 


6 

5.5 
5.5 

4.8 

4.8 
4.7 
4.5 
4.5 
4.5 

4.3 
4.3 
4.3 
4.2 
4.0 

3.8 
6.5 
5.5 
5.5 
16 

43 
86 
56 
39 
56 

48 
40 
34 


29 
25 
22 
20 
19 

17 
16 
15 
17 
16 

15 
13 
13 
13 
12 

11 

10 
9.5 
9.5 
9.5 

9.5 

8.5 
8 
8 
7.5 

7 

7 
7 

7 


6.5 

6.5 

6 

6 

5.5 

5.5 

5.5 

5.5 

7 

6.5 

6 

5.5 

5 

5 

9 

7 

5.5 

5.5 

4.7 

4.3 
4.3 
4.5 
4.3 
4.3 

4.5 

4.8 
5.5 
5.5 
4.7 


4.5 
4.3 
4.3 
4.3 
4.2 

3.8 
4.0 
4.5 
4.5 
4.3 

4.3 
4.2 
4.2 
3.8 
3.6 

3.6 
3.6 

3.6 
6.5 

4.8 
4.2 
4.3 
4.7 
4.7 

4.3 
4.0 
3.8 
3.8 
4.0 
4.0 


3.6 
3.2 
3.0 
3.3 
3.2 

3.0 
2.9 
2.9 
2.8 
2.8 

2.8 
2.6 
2.4 
2.3 
2.1 

1.9 
1.7 
1.7 

1.8 
1.9 

1.9 
1,9 
1.9 
1.9 

1.8 

1.8 
1.7 
1.6 
1.6 


1.5 
1.5 
1.5 
1.4 
1.6 

1.7 
1.7 
1.6 
1.3 
1.3 

1.3 
1.4 
1.3 
1.3 
1.2 

1.2 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.1 
1.1 
1.1 

1.1 
1.0 

l.l 
1.1 

1.0 
.9 


1.0 
.9 
.8 
.8 
.8 

.8 
.8 
.8 

.7 

.8 
.8 
.8 
.8 
.8 

.8 

.8 

'.8 
.8 

.8 

.8 
.8 

.8 
.8 

.8 
.8 
.6 
.6 
.6 


0.6 


2 . 


.8 


3 


.6 


4 


.6 


5 


.6 


<) 


.5 


7 


.5 


8 


.5 


9.. 


.5 


10 


.4 


11 


.4 


12 


.4 


IS 


.5 


14 . . 


.5 


15 


.5 


16 . 




17 




18 .. . 




19 




20 




21 




22 . .. 




23 




24 




25 




26.. . 




27 




28 




29 




30 


.5 


31 . 









Note.— No gage-height record Oct. 31 to Nov. 28; Dec. 7 to Jan. 12; Jan. 25-29; and Sept. 19-27. Dis- 
charge for these periods estimated from records of flow on nearby streams, except Sept. 19-27 which was 
interpolated. 



12.. 
13.. 
14.. 
15.. 

16.. 
17.. 

18.. 
19.. 
20.. 

21.. 
22.. 

23.. 
24.. 
25.. 

26.. 
27.. 



30.. 
31.. 



6.4 
5.0 
4.5 
4.0 

4.8 

13 
114 



154 

122 



8.1 

7.8 



7.5 
7.5 
8.4 
7.2 
7.0 



5.6 
5.0 
5.0 

4.8 
5.0 
5.3 
5.6 
5.6 



5.3 
5.3 
5.3 

4.8 



4.3 
4.0 
4.0 
4.3 
4.5 

4.5 
4.3 
4.3 
4.3 
4.2 

4.0 
3.8 
3.5 
3.3 
3.5 



3.6 
3.6 



3.3 
3.2 
3.2 
3.2 
3.2 

3.0 
3.0 
3.2 
3.3 
3.0 
2.9 



2.8 
2.6 
2.5 
2.6 



2.3 
2.1 



2.1 
1.9 

1.9 

1.7 
1.7 

1.8 
1.9 
1.6 



1.5 

1. 
2 
1 




Note.— No gage-iieiglit record Aug. 14 to Sept. 2; discharge interpolated. 



468 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA, 

Monthly discharge of Santa Anita Creek near Sierra Madre, Calif., for 1916-1918. 



Discharge in second-feet. 



Maxi- Mlai- 
mum. mum. 



Urni-off 
(total 



acre- 
feet). 



Discharge in second-feet. 



Maxi- Mini- 
mum, mum. 



Run-ofl 

(total 



acre- 
feet). 



1916. 

August 

September.. 



The period . 

1916-17. 

October 

November 

December 

January 

February 

March 

April 

May 

Jime 

July 

August 

September 



The year. . 



2.5 
3.1 



2.11 
1.75 



130 
104 



32 
3.0 
100 

24 

86 

29 
9 
7 

3.6 
1.7 
1.0 
.6 



2.5 
2.0 
2.1 
4.0 
3.8 
7.0 
4.3 
3.6 
1.5 
.9 



4.92 


303 


2.58 


154 


7.54 


464 


7.72 


475 


18.2 


1,010 


12.7 


781 


5.51 


328 


4.31 


265 


2.32 


138 


1,24 


76.2 


.78 


48.0 


.48 


27.4 



1917-18. 

October 

November. . . 
December... 

January 

February 

March 

April 

May 

Jime 

July 

August 

September. . . 

The year. 



1.0 
1.3 
.8 
1.1 

82 
154 

11 
4.5 
2.8 
1.5 



0.5 

.4 



2.9 
1.4 
.5 
.4 
.3 



0.64 
.76 
.75 
.86 
8.07 
36.1 
7.09 
3.64 
1.97 
.87 
.63 
.55 



5.16 



100 



5. 62 4, 070 



39.4 
45.2 
46.1 
52.9 

448 
5,220 

422 

224 

117 
53.5 
38.7 
32.7 



LITTLE SANTA ANITA CREEK NEAR SIERRA MADRE, CALIF. 

Location. — Near center of W. -| sec. 9, T. 1 N., R. 11 W., about 2 miles northeast of 
Sierra Madre, Los Angeles County. 

Deainage area. — 1.9 square miles (measured on topographic map). 

Elevation. — About 2,100 feet above sea level. 

Records available. — April 15, 1916, to September 30, 1918. 

Gage. — Gurley graph water-stage recorder on left bank about 150 feet below Scherer's 
cabin. 

Discharge measurements. — ^Made from wooden bridge near gage or by wading. 

Channel and control. — Gravel and boulders; permanent. One channel at all 
stages, straight for 75 feet above control. Right bank is rock cliff; left bank is 
stone wall 5 feet high which is probably above maximum stage. Control is low 
concrete dam, with triangular notch at left end, just below gage. Zero flow is 
at stage, 0.70 foot and top of dam at stage 1.50 feet. (See PI. XIII, C, p. 422.) 

Extremes op discharge. — 1916-1918: Maximum stage recorded, 2.30 feet at 12.30 
a. m. March 10, 1918 (discharge, 58 second-feet); minimum stage recorded, 
0.86 foot at 7.30 p. m. September 12, 1918 (discharge, 0.03 second-foot). 

Diversions. — None above. 

Regulation. — None. 

Accuracy. — Stage-discharge relation permanent. Rating curve fairly well defined. 
Mean daily gage height determined by inspection of recorder graph. Daily 
discharge ascertained by applying mean daily gage height to rating table. Records 
good. 



LOS ANGELES BIVER BASIN. 



469 



Discharge measurements of Little Santa Anita Creek near Sierra Madre, Calif., for 1916- 

1918. 



Date. 


Made by- 


Gage 
height. 


Dis- 

charge. 


Date. 


Made by — 


Gage 
height. 


Dis- 

charge. 


1916. 
Apr. 15 
24 

May 2 
24 




Feet. 


Sec. -ft. 
2.0 
1.7 
1.8 
1.2 
1.0 
,6 
1.0 
.5 
.4 
.5 
.4 
1.2 

1.0 
2.5 

.7 


1917. 

Feb, 20 

21 

24 

Oct. 24 

Dec. 22 

1918. 
Feb. 21 
Mar. 11 

28 
Apr, 22 
May 4 

16 
July 1 
Aug, 2 
Sept, 23 


H. J, Tompkins 

do 

J. C, Dort 


Feet. 
1,56 
1.77 
1.72 
1.02 
1,05 

1.72 
1.97 
1.58 
1.34 
1.30 
1.30 
1.12 
1.06 
1.02 


Secf.^ 


do 

do 




6.3 
6 1 


J C Dort 




H. J, Tompkins 

E , Tompkins 


1 




do.... 

do 




.15 


July 15 

Oct. 10 

23 


C. W, Sopp 




do 

H.J.Tompkins 

do 

do 

do 

J C Dort 


1.35 
1.25 
1.22 
1.20 
1.20 
1.39 

1.40 
1.60 
1.32 


5,0 


Nov. 12 
19 


H, J. Tompkins 

C, W. Sopp 


18 
2.0 


26 
Dec 31 


H. J. Tompkins 

'^...do'.'^'^'.'.'..'.'^'^'.'.'.. 

C W Sopp 


.86 
.58 


1917 


H. J.Tompkins 

["ildo!!!!!"!'---""'.- 


.65 

29 


Jan. 6 

20 

Feb. 10 


H, J, Tompkins 

do 


.19 

.18 



Daily discharge, in second-feet, of Little Santa Anita Creek near Sierra Madre, Calif, for 

1916-1918. 



Day. 


Aug, 


Sept. 


Day. 


Aug. 


Sept. 


Day. 


Aug, 


Sept. 


1 


1916, 




0,25 
.25 
.25 
.25 
.3 
.3 
.3 
.3 
.25 
.25 


11. 
12. 
13. 
14. 
15. 

16. 
17. 
18. 
19. 
20. 


1916. 




0.25 
.2 
.2 
.2 
.2 
.2 
.2 
.2 
.2 
,2 


21. 
22. 
23. 
24. 
25. 
26. 
27. 
28. 
29. 
30. 
31. 


1916, 




0.2 


2 












.25 


3 












.3 


4 












.3 


5 












.3 


6 












.35 


7 












.3 


8 












.25 


9 













.25 


10 -- 










0.25 
.25 


1.0 























Note.— No gage-height record Sept. 9-17 and 29-30; discharge estimated. 



Day. 



Oct. Nov. Dec. Jan. Feb. Mar. Apr. May. June, July. Aug. Sept. 



0,8 

.8 



15., 
16.. 
17.. 

18.. 
19.. 
20.. 
21.. 
22.. 
23.. 
24.. 
25.. 
26.. 
27.. 
28.. 
29.. 
30.. 
31.. 



0.4 
.4 
.4 



0.5 

.7 
1.8 
.7 



.4 
.4 
.4 
.4 
.4 
1.4 
4,3 

2.5 
1,8 
1.4 
1.5 
1.2 



1.1 
1.1 
1.0 

1.0 
1.0 



1.0 
1,0 
.9 
1.1 
2.7 
2.5 
2.3 
1.9 
1.7 
1.6 
1.4 

1.3 
1.2 
1.2 
1.2 
1,1 
1.0 



.7 
,7 
.7 
•7 

.7 
1.2 

.9 
1.0 

1.8 

7.5 
12 
8 

5.5 
7,5 



4.8 
4.3 
3,4 
3.2 
3.0 
2.7 
2.5 
2,5 
2,5 
2.2 

2.2 
2.2 
2.1 



1.8 
1.7 
1.6 
1.6 
1.5 
1.4 
1.3 
1.3 
1.3 
1,2 
1.2 
1.2 
1.1 
1.1 
1.1 
1.1 



Note.— Water-stage recorder not in operation Oct. 2-9, 17-22, 29;Mar. 29; 
29-30 — discharge interpolated. 



0.3 
.2 
.2 
.2 
.2 
.2 
.2 
.2 
.2 
.2 
.2 
.2 
.2 
.2 
,2 
,2 



.1 
.1 
.1 

.1 
.1 



.1 
.1 
.1 
.1 
.1 



June 17-22; July 15-20; and Sept. 



470 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Da/tly discharge, in second-feet, of Little Santa A^iila Cnch near Sierra Madre, Calif, for 
1916-1918— Continued . 



Day. 



Apr. 



May. 



July. 



Aug. 



Sept. 



1917-18. 
1.. 

4 

5 

6 

7 

8 

9 

10... 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



0.2 

.2 
.2 
.2 
.2 



0.1 
.1 



2.7 
1.9 
2.0 



7 
3.5 



5.5 
4.1 

3.7 
3.9 
3.3 

2.9 
2.7 
2.5 
2.3 
2.1 

2.0 
2.0 
2.1 
2.1 
2.0 



Note. — No gage-height record Oct. 1-6, 18-20, and Jan. 6-16 — discharge interpolated. 
Monthly discharge of Litlti'e Sant-a Anitki Creek near Sierra Madre, Calif., for 1916-191S. 





Discharge in second-feet. 


Run-off 

(total 

in 
acre- 
feet). 


Month. 


Discharge in second-feet. 


Eun-off 

(total 


Month. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


in 

acre- 
feet). 


1916. 
September 


1.0 


0.2 


a 275 


16 


1917-18. 
October 


0.2 
.2 
.2 
.2 

12 

23 
1.9 
.8 
.6 
.3 
.2 
.2 


0.1 

'.% 
.8 
.6 
.2 
.2 
.05 
.04 


0.123 
.153 
.194 

.165 
1.14 
4.72 
1.15 
.723 
.430 
.210 
.126 
.099 


7.6 


November 

December 

January 


9.1 
11.9 

10.1 


1916-17. 
October 


.8 
.5 
14 
2.7 
12 
4.8 
1.2 
1.6 
.8 
.5 
.3 
.2 


.4 
.4 
.4 
.8 
.7 
1.1 
.8 
.7 
.4 
.2 
.2 
.1 


.648 
.413 
1.28 
1.23 
2.71 
2.03 
.950 
.871 
.577 
.300 
.203 
.110 


39.8 
24.6 
78.7 
75.6 

151 

125 
56.5 
53.6 
34.3 
18.4 
12.5 
6.5 


November 

December 


February 

March 


63.3 
290 




April 


68.4 


February 

March 


May 


44.5 


June 


25.6 


April 


July 


12.9 


May 




7.7 


June 


September 

The year 


5.9 






August 


23 


.04 


.770 


557 


September 




The year 


14 


.1 


.93 


676 





LOS ANGELES BIVEE BASIN. 
MISCELLANEOUS MEASXJBEMENTS. 



471 



Measurements of stream flow in the drainage basin of Los Angeles 
River at points other than those at which gaging stations have been 
maintained are recorded in the following table : 

Miscellaneous measurements in Los Angeles River drainage basin, Calif., for 1897-1917. 



Dale. 


Stream. 


Tributary to- 


LocaUty. 


Dis- 
charge. 


June 24,1898 


Los Angeles River, 
do 


Pacific Ocean 

....do 


Creek below Macy Street 

Zanja No. 7 


'"^L 


Do 


5.59 


Do. 


do 


do 

do 

. .do 


Diversion below Zanja No. 7. 
New bridge, Weir B 


.64 


Aug. 10,1898 

Do 


do 

do 


1.32 


San Fernando road crossing.. 

North Cahuenga road 

Old bridge, No. 4 


4.84 


Do. 


....do 


do 


9.74 


Do 


do 


....do 


14.4 


Do. . . 


....do 


do 


Tujunga Creek junction 

Bridge No. 2, at Narrows. . . 
Main supply ditch 


.87 


Aug. 15, 1898 

Do 


do 

do 


do 

do 


38.7 
16.4 


Do 

Jan 5 3899 


do 

do 


do 

do 


Total river at Crystal Springs 
The Narrows . 


55.1 
67 


Feb, 14' 1899. 


.do 


....do 


do 


61 


Feb 25 1899 


do 


do 


.do . 


67 


Mar. 11,1899 


.. .do 


::do:::::::::::.- 


do 


m 


Mar. 25,1899 


do 


do 


do . 


61 


Apr. 29,1899 


.do 


do.... 


do 


52 


May 18,1899. 


do . . 


do 


.do. ... 


58 


June 7,1899 


do 


do 


do 


5G 


July 18,1899 


.do 


.do 


. .do 


55 


Aug. 19,1899 


do 


do 


do 


57 


Aug. 25,1899 

Sept. 20, 1899 


do 

do 


do 

do 


do 

do 


59 
53 


Sept. 27,1899 


....do 


.do 


...do 


54 


Oct. 25,1899. 


do 


do. . 


.do 


57 


Oct. 31,1899 


...do 


....do 


....do 


58 


Nov. 17,1899. . 


do.. 


do 

....do 


.do 


59 


Nov. 28,1899 


...do 


do 


56 


Dec. 13,1899 


do . 


do 


...do 


58 


Dec. 26,1899 


do 


do 

do 

do 

. ..do 


do .. . 


58 


Sept. 20,1901 

Mar. 25,1903 


do 

do 

.do 


Bridge No. 2 


45.9 


Los Feliz Bridge . . 


109 


Apr. 8,1903 


. ..do 


37 


Apr. 13,1903. . 


do 


do.. .. 


!;;!!do"!!!!!!!!!!!!!!!!!!"! 


28 


Apr. 17,1903 


. ...do 


...do 


64 


Jan. 28,1903 


do 

do 


do 

do 


Aliso street Bridge.. . . 


66 


Apr. 11,1903 


Ninth street Bridge 


20 


Apr. 18,1903 

Apr. 12,1905. 


do 

do 


do 

do 


do 


106 

12.7 


Apr. 18,1903 


do 

do . 


do 

do 


Boyle Avenue 




Do 


Opposite Bell station 

Above j unction of Rio Hondo 
Below junction of Rio Hondo 
J mile above Compton and 

Clearwater road. 
Opposite Clearwater . . 


73 


Apr. 20.1903 

Do.'. 


do 

do 


do 

do . 


25 
54 


Do 


do 


do 


82 


Do 


do 


do 


5;? 


Apr. 21,1903 

Do.. 


do 

do- 


do 

do 

do 


1 mile above Cerritos road. . . 
ih miles below Cerritos road. 
Opposite Seabright 


39 

77 


Do 


do 


78 


Mar. 13,1905 

Apr. 12,1905 


do 

do. 


do 

do 


Fourth Street Bridge 

Huron Street 


4,520 
43 


Mar. 13,1900 

Do 

Mar. 10,1906 

Mar. 17,1906 

Do 

Mar. 5,1907 


do 

do 

do 

do 

do 

do 


do 

do 

do 

do 

do 

. ...do 


Seventh Street Bridge, a. m. 
Seventh Street Bridge, p. m. 
do 

Seventh Street Bridge, a. m. 
Seventh Street Bridge, p. m. 
.do 


850 
555 

1,200 
420 

3,200 
.6 
.32 


Jan. 28,1901 

Do 


Aliso Creek 

do 


Los Angeles River, 
do 


Chatsworth road crossing . . . 
2 miles below road crossing. . 


Oct. 9,1900 


Pacoima Creek 

.do 


. .do 


.09 


Aug. 21,1899 


do 




5 


Jan. 9,1901 


do 

do 

do 

do 

do 

do 

do 

do 

do 


....do 


.. .do 


50 


July 12,1901 


do 

do 

do 

do 


do 


6.0 


Sept. 20,1901 


do 


b.O 


Apr. 9,1903 


do 


47 


Apr. 18,1903 


do 


98 


May 5,1903 


. ...do 


do 


24 


June 5, 1903 


do 

do 

do 


do 


g 


Sept. 26,1903 

Apr. 12,1905 


do 

do 


6.§ 
30 



^ Approximate. 



ft Stream dry. 



472 SUKFACE WATEE OF PACIFIC SLOPE, SOUTHERN CALIFORITIA. 

Miscellaneous measurements in Los Angeles River drainage basin, Calif., for 1897-1917- 

Continued. 



Tributary to— 



Locality. 



Dis- 
charge. 



Apr. 9,1903.. 
Apr. 19,1903.. 
May 5,1903-. 
June 6,1903.. 
Apr. 12,1905.. 
May 5,1903.. 

Apr. 18,1903.. 

Apr. 12,1905.. 
Feb. 13,1917.. 

Feb. 16,1917.. 
Aug. 21,1899.. 

Oct. 9, 1900. . 
Sept. 21,1901.. 
Nov. 21,1900.. 
Nov. 22,1900.. 
Apr. 9,1903.. 
Apr. 17,1903.. 
May 5,1903.. 
June 4,1903.. 
Apr. 12,1905.. 
Nov. 22,1900.. 



Pacoima Creek — 

....do 

....do 

....do 

....do 

....do 



Los Angeles River, 
do. 
do. 
do, 



Southern Pacific R. E.. 
....do 



.do.. 



..do.. 
..do.- 



..do.. 



.do.. 
..do.. 



....do... 
Maclay . . 



Tujunga Creek., 



..do.- 
-do.. 
,.do.. 
..do.. 
..do.. 



....do 

Diverts from Pa- 
coima Creek, 
do. 



IJ miles below Southern Pa- 
cific R. R. 

3 miles below Southern Pa- 
cific R. R. 

...do 

Intake 



Los Angeles River. 



.do., 
.do., 
.do., 
.do.. 



.do.. 



..do.. 
..do.. 
..do.. 
..do.. 
,.do.. 



Head works Monte Vista 
canal. 

...-do 

...-do 

Southern Pacific R . R 

....do 

do. 



.do., 
.do., 
.do.. 



..do 

.do., 
.do.- 
.do.. 



Apr. 
Apr. 



17,1903. 
12,1905.. 



Anr. 10,1903.. 
Apr. 17,1903.. 
May 5,1903.. 
June 4,1903.. 
Sept. 26,1903.. 
Apr. 12,1905.. 
Aug. 2,1917.. 

Dec. 1,1917.. 

Aug. 11,1898.. 

Aug. 21,1899-. 

July 12,1901.. 

Apr. 10,1903.. 

Apr. 17,1903.. 

May 5,1903-. 

June 4,1903.. 

Sept. 26,1903.. 

Apr. 11,1905.. 

Mar. 31,1916.. 

Apr. 6,1916.. 

Apr. 27,1916.. 

May 22,1916.. 

June 23,1910.. 

Feb. 13,1917.. 

Mar. 5,1917.. 

Apr. 11,1917., 

Apr. 24,1917.. 

May 3,1917.. 
Jan. 15, 1901.. 



-do.. 
.do.- 



-do-. 
.do-, 
-do.. 



..do.. 
..do.. 
..do.. 
..do.. 



Ditch.. 
....do.. 



do. 

do. 

Diverts from Tu- 
junga Creek. 
do 



^ miles below Southern Pa- 
cific R. R. 
1.^ miles below Southern Pa- 
"cificR. R. 
2 miles below Southern Pa- 
cific R. R. 

Mouth of canyon 

do 

do 

do 

do 

do 

Bryants Cold Spring 



Little Tujunga 
Creek. 

....do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 



...do , 

...do 

...do 

-do.. 



Tujunga, Wash.. 



Bryants Cold Spring, 6 feet 

above sand box. 
....do 



-do.. 
.do., 
-do-. 



Apr. 24, 1901.. 
Jime 4, 1901 . . . 
Mar. 1,1917... 

Jan. 10, 1899.. 

Jan. 11, 1899.. 
Jan. 12, 1899.. 

Do 

Feb. 1,1899.. 
Mar. 17, 1899- . 
Mar. 18,1899.. 
Mar. 19, 1899- . 
Mar. 20, 1899.. 
Mar, 21, 1899., 



Main Supply ditch 
plus Crystal 
Springs. 

....do 

do 

Cook Creek 



Arroyo Seco.. 



..do.. 
..do., 
-do-- 
..do.. 
..do.. 
..do.. 
..do-. 
..do-. 
..do.. 
..do.. 
..do.. 
..do.. 
..do.. 
..do.. 
..do.. 



..do 

..do 

..do 



-do., 
-do., 
.do.. 



do. 

...do 

Mouth of canyon 

do 

!!;]do!"'!!"!!!!"!!""!!! 

Mouth of canyon (estimated) 
Mouth of canyon 

do. 
do. 



..do.. 
..do.. 



Above Bellevue reservoir 
diversion. 



Los Angeles River, 



..do. 
..do. 



,.do.. 
..do., 
..do., 
..do.. 
..do.. 
..do.. 
..do.. 
..do.. 
..do.. 



..do. 
..do. 
..do. 
..do. 
..do. 
..do- 
..do. 
.-do. 
..do. 



Just below junction of main 
forks near La Crescenta. 

Cable station, Terminal 
quarries. 

do 

do 

do 

do 

do 

do 

do 

do 

do 



Sec. ft. 
32 
57 
16 

6.0 
17.6 

&.0 



6.0 
3.5 

2.4 

.44 

.19 
.22 
1,060 
19.2 
2 
124 


29 
.05 

6.0 

6.0 

59 
157 

37 • 
12 

.1 
61 
1.1 

2.0 

.05 

6.0 
6.0 



.0 

3.3 
3.7 
4.4 
2 

1.2 
.2 
2 

8.1 
L6 
1.8 
L4 
53.9 



3.02 

1.9 
2.0 
2.06 

.24 
3.24 
1.77 

.93 
2.52 
1.9 



3 Computed from flood marks. 



6 Stream dry. 



LOS ANGELES BIVEE BASIN. 



473 



Miscellaneous measurements in Los Angeles River drainage basin, Calif., for 1897-1917-— 

Continued. 



Date. 


Stream. 


Tributary to— 


Losality. 


Dis- 
charge. 


Mar. 22, 1899 


Arroyo Seco 

do . - 


Los Angeles River. 
do 


Cable station, Terminal 

quarries. 
do 


Sec.-ft. 
1.64 


Mar. 23, 1899 


1 56 


Mar 26 1899 


do 


..do 


.. do 


2 2 


Mar. 28^ 1899 


do 


do 


do 


1.22 


Apr. 2, 1899 ... 


do ... 


do 


do 


.28 


Apr 12 1899 


do 


do . 


... do 


08 


Jan. 3, 1900 


.. do 


do 


do 


20 3 


Jan. 4, 1900 


do 


do 


... do . 


4 3 


Mar. 5, 1900 


do 


do 


do 


7.2 


Mar. 6, 1900 


do 


do 


do 


1 2 


Mays, 1900 


do 


do 


do 


42 4 


May 6, 1900 


do 


do 


do 


10 5 


May 7 1900 


do 


do 


do 


5 4 


May 14, 1900 


.. do 


do 


do 


2 2 


Nov. 20, 1900 


do 


... do 


. do 


23 


Nov. 21, 1900, 11 a. m . 


do 


do 


do 


32 


Nov. 21, 1900, 12 m 


do 

do 


. do 


... do . 


35 


Nov. 21, 1900, 1p.m... 
Nov.21, 1900, 1.30 p.m. 
Nov. 21, 1900,2p.m... 
Nov. 21,1900,3 p.m... 
Nov, 22, 1900, 11 a. m 


do 


do 


75 


do 

do 


do 

do 


.....do 

do 


81 
100 


do 


do 


do 


144 


do 


. do 


. do 


85 


Nov. 22, 1900, 2p.m... 
Nov. 23, 1900 . . 


do 

do 


do 

.. do 


do 

. . do.. 


99 
31 


Nov. 24, 1900 


do 


do 


do 


11 5 


Nov. 26, 1900 


do . . .- 


do 


do 


8 7 


Dec. 1, 1900 . 


do 


do . 


do 


4 3 


Dee. 6, 1900 


.. do 


do 


do 


1 4 


Jan. 6, 1901 


do 


. do 


. do 


7 


Jan. 7, 1901,9.30a. m... 


do 

do 

.... do 


do 


do... 


172 


Jan. 7, 1901, 3.45 p. ra.. 
Jan. 8, 1901 


do 

do 


.....do 

do 


103 
28 


Jan. 11, 1901 


.. do. . 


do 


.do... 


14 


Jan. 14, 1901 


do 


do 


do 


7 


Jan. 20, 1901 


.. do . 


do 


do 


5 


Jan. 21, 1901 


do 


do 


do 


11 


Jan. 23, 1901 


do 


do 


do 

do 


7 


Jan. 28, 1901. . . . 


do . . 


..do 


39 


Jan. 29, 1901 

Feb. 4, 1901 ... 


do 

. do 


do 

... do 


do 

do 


11 

29 


Feb. 5, 1901, 11 a. m 


do 


do 


do 


809 


Feb. 5, 1901, 3 p. m 

Feb. 6, 1901 . . 


do 


do 


do.. 


410 


do 


do 


do 


200 


Feb. 9, 1901 


do 


do 


.... do 


102 


Feb. 11, 1901 


do 


do .. 


do 


102 


Mar. 16,1901 


do 


do 


do 


17 


Apr. 29, 1901 


do 


do 


do . 


1 6 


May 10, 1901 


do 


do 


do 


5 3 


July 12, 1897 


do 


.... do 


Near De^^ls (lateo 


5 12 


Aug. 9, 1897 


.. do . 


. do 


do 


4.63 
4.13 
4.16 
3 6 


Oct. 11, 1897 


do 


do 

..do 


do 


Nov. 8, 1897 


do 


do 


Sept. 16, 1898 


do 


do 


do 


Oct. 12, 1898 


do 


do 


do 


3 44 


June 14, 1899 


do 


do 


do 


5 17 


May 31, 1899 


do 


do 


do.. 


3 17 


July 10, 1899 


do 


- do 


do 


2.87 
3.55 
17 


Sept. 17, 1899 


do 


do 


.. . do... 


Apr. 13, 1903 


do 


do 


Devils Gate 


May 21, 1903 


do 


do 


do 


2 


Do 


do 


do 


1 mile below Devils Gate 

Devils Gate 


.0 

12 5 


Apr. 11, 1905 


do 


do 


Apr. 18, 1906 


do 


do 


do 


9.2 
1.69 
1.48 
1.43 
1.36 
1 62 


Sept. 16, 1898 


do 


... do 


Sheep corral total 


Oct. 24, 1898 


do 


do 




May 29, 1899 


... do 


do 




June 3, 1899 


do 


do 


do ... 


Jione 21, 1899 


do 


do 


do 


July 1,1899 


do 


do 


... do 


1 33 


July 13, 1899 


do 


do 


do 


1 3 


Sept. 19, 1899 


do 


do 


do 


1 94 


Sept, 21, 1899 


do 


do 


do 


1 37 


Apr. 13, 1903 


do 


. . do 


do 


4 


Apr. 17, 1903 


do 


do 


do 


80 


Feb. 6, 1901 


do 


... do . 




270 


Jan. 28, 1903 


do 


do 


... do . 


274 


Mar. 25, 1903 


do 


do 


do 


128 


Apr. 17, 1903 


do 


do 


....do 


77 



a Devils Gate developments include Richardson and Wilson tunnels. 



474 SUEEACE WATEE OF PACIFIC SLOPE; SOUTHEEN CALIFOENIA. 

Miscellaneous measurements in Los Angeles River drainage basing Calif ., for 1S97-1917 — ■ 

Continued. 



Tributary to— 



Locality. 



Apr. 13, 1903- . 
Apr. 17, 1903.. 
May 21, 1903... 
Apr. 11, 1905.. 
Apr. 18, 1906.. 
Apr. 17, 1907.. 
May 14, 1907... 
Apr. 17,1908.. 
Sept. 16, 1898.. 

Do 



Jan. 11, 1899.. 
Apr. 13, 1903. 
Oct. 27, 1905.. 

Apr. 11, 1905. 



Apr. 18, 1906. 
July I'l, 1908.. 



Apr, 7, 1910. 
JuneO, 1910. 



June 28, 1910.. 
Feb. 26, 1914 . . 

Mar. 12, 1914 . . 
May 4, 1914... 
Apr. 20, 1916.. 
May 4, 1916... 
May 29, 1916.. 
Mar. 15, 1917 . . 
Apr. 25, 1917 . . 
May 29, 1917.. 
Aug. 27, 1917 . . 
Oct. 16, 1917 . . 
Nov. 3,1917... 
July 3, 1898... 
Aug. 8,1900... 
July 15, 1902 . . 
Aug. 18,1902.. 
Sept. 8,1902.. 
Sept. 27,1902., 
Oct. 11,1902.. 
Apr. 27,1903.. 
Oct. 2, 1903... 
June 15, 1904.. 
July 8, 1904 . . . 
Aug. 31, 1904 . . 
Sept. 24, 1904.. 
Oct. 5, 1904 . . . 
Oct. 15, 1904.. 
Oct. 6,1905-... 
Apr. 20, 1903 . . 

Apr. 27, 1903.. 

Do 

Do 



Nov. 14, 1898. 

Jan. 11, 1899.. 
Apr. 18, 1903.. 
May 21, 1903.. 

Do 

Sept. 9, 1903.. 



Apr. 18, 1903.. 
May 21, 1903.. 

May 20, 1916.. 
June 9, 1916... 
JuIvlO, lOlii.. 
Aug. 22, 1916.. 
Nov. 23, 1916.. 



Arroyo Seco - 

do 

do 

do 

do 

do 

do 

do 

do 



.do. 

.do. 
..do., 
.do. 



.do. 
.do. 



.do. 
.do. 



do 

Millard Canyon 
Creek. 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

Kio Hondo 

no . . 

do 

do 

do 

do 

do 

do 

do , 

do 

do 

do , 

do 

do 

do 

do 

do 



..do. 
..do. 
..do.. 



Eaton Canyon 
Creek. 

..do 

..do 

..do 



lios Angeles River. 

do 

do 

do 

....do 

....do 

....do 

do 

....do 



..do. 

..do. 
..do. 
..do. 



..do.. 
..do. 



.do. 
.-do. 



Eaton Canyon 
Creek. 

....do 

....do 



....do. 
--.-do. 
....do. 
....do. 



do 

.\rroyo Seco 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

Los Angeles River 

do 

....do 

do 

do 

do 

do 

do 

do 

-..-do 

do 

do 

....do 

do 

do 

do 

do 



..do. 
.do. 
..do. 



Mouth of canyon 

do 

do 

do 

do 

do 

do 

do 

Total flow into Osage Grove 
Avenue reservoir. 

Marengo Improvement Co. 
reservoir. 

Loughery dam site 

Garvanza wagon bridge 

Sycamore grove, near Mor- 
gan's south line. ^ 

1.000 feet above submerged 
dam of Pasadena Land & 
Water Co. 

Submerged dam 

1 mile above junction with 
Millard Canyon. 

Mouth of Millard Canyon, 4 
miles north of Pasadena. 

Li flume at intake of North 
Pasadena Land & Water 
Co. Total flow of stream. 

do 

Mouth 



do 

do , 

Above diversion near mouth. 

do 

do 

Mouth 

do 

do 

do 

....do 

....do 

Old Mission Bridge 

do 

.--.do 

-..-do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

do 

Los Angeles & Salt Lake Ry. 

above Workman. 

Wliittier road crossing 

Road crossing west of Rivera 
Southern Pacific R. R. west 

of DoAvney. 



.do. 
.do. 
.do. 



Near falls 

Mouth of canyon 

do 

Water Co.'s diversion. 
Mouth of canyon 



.do. 
.do. 

.do. 
.do. 
.do. 
.do. 
.do. 



Southern California Ry 

1 mile above Southern Cal- 
ifornia Ry. 

Above upper dam 

do 

....do 

do 

....do 



=f Stream dry. 



LOS AKGELES EIVEE BASIN. 



475 



Miscellaneous measurements in Los Angeles River drmnage basin, Calif ., for 1897-1917-— 

Continued. 



Date. 


Stream. 


Tributary to— 


Locality. 


Dis- 
charge. 


Tan 8 1917 


Eaton C a n V n 
Creek, 
do 


Rio Hondo 

do 


Above upper dam 


Sec. -ft. 
4 6 


Jiuie 6 1917 


do 


1.4 


A.ug. 27, 1917 - . 


...do 


do 


do 


.9ft 


June 6 1917 


do 


. .do ... 


Above intake of Precipice 

Water Co. 
Above lower dam, about 

one-fourth mile above 

mouth of canyon. 
. ..do 


1.5 


Apr 15, 1916 . .. . 


do 


do 


7.2 


Apr 21, 1910 


do 


do 


4.$ 


May 3, 1910 


. ..do 


do 


do 


3.4 
1.5 
.4 
.9 
3.T 

«.o 

2.S 


Tnnp. 9, 1910 


do 


.do . . 


. ..do 


Jvily 10, 1910 


....do 


do 


do 


Nov, 23, 1916. 


do .... 


. ..do .... 


do 


Jan. 8, 1917 


do 


do do 


Oct. 24, 1917 


.do 


do 


.. ..do 


June 6, 1917 


do 


do 


500 feet below upper timnel . . 


iVug. 27, 1917 


.do 


.. ..do 


Mount Wilson toll bridge «- 


Oct 24 1917 


do 


do 


..do. 


.OS 
35 
1.5 


Do 


..do 


do 


Air to air timnel 

Mouth of canyon . . . 


Apr 18, 1903 


Santa Anita Creek. 


.do .. . 


Oct. 23, 1905 


do 


do 


do 


Apr.18,1903: 

May, 23, 1903... 


do 

.do . . 


do 

.do 


Southern Pacific Co.'s Mon- 
rovia branch. 

White Oak Avenue 

Near mouth 


Apr 18, 1903 


Little Santa Anita 
Creek. 


Santa Anita Creek. 







WATER ABSORBED IN SAND AND GRAVEL. 

During the winter of 1902-3 the precipitation in southern Cahforiiia 
was greater than at any time during the preceding 10 years. This 
condition led to heavy irrigation during the spring of 1903, many 
irrigators taking advantage of it to thoroughly saturate the soil at 
a time when water was plenty and cheap, thereby saving much expense 
and contention which always accompanies a later irrigation when 
water is scarce and expensive and the demand is greater than the 
supply. 

Immediately after the rain of April 16, 1903, a series of measure- 
ments w^ere made by W. B. Clapp under the direction of the United 
States Geological Survey to determine the quantity of water being 
absorbed in the sand and gravel washes of the lai^ger tributary streams, 
of the three principal river basins of southern California — Santa Ana, 
San Gabriel, and Los Angeles rivers. Measurements were taken at 
the mouths of the canyons where the streams leave the mountains, 
at all canal diversions, and at such intervals along the streams as time 
and the available force detailed for this work would allow, the location 
of the point where the stream entirely disappears or lef_t.^ the valley 
being noted. These measurements show the quantity of water taken 
up in the sand and gravel wash of this stream on the days given, and 
the following tables give this quantity in second-feet and acre-feet 
for a period of 24 hours. 



476 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Water discharged from tributary streams and sinhing in the Los Angeles Biver basin above 
Burbanh, Calif. Jor 1903. 





Second-feet. 


Acre-feet. 


stream. 


Diver- 
sion. 


Waste. 


Total. 


Diver- 
sion. 


Waste. 


Total. 


Apr. IS. 




157 
27 
98 


157 
27 
98 




311 
54 
194 


311 ' 


Little Tujunga 




64 


Pacoima 




194 












282 


282 




559 


559 


May 5. 
Tujunga 




37 
4 
24 


37 
4 

24 




73 
8 
48 




Little Tujunga 






Pacoima 
















65 


65 




129 




June 4. 
Tujunga ... . . 


3 


9.3 

.7 
5 


12.3 

.7 
8 


6 
6" 


18 
1.4 
10 


24 


Little Tujunga 


1.4 




3 


16 








6 


15 


21 


12 


29.4 


41.4 



MALIBU CREEK BASIN. 



GENERAL FEATURES. 

Malibu Creek rises in the Santa Monica Mountains and enters the 
Pacific Ocean about 15 miles above the town of Santa Monica. This 
stream is formed by Triunfo and Las Virgenes creeks, which drain the 
northern portion of the Santa Monica Range and the lower foothill 
country to the north. The rocks throughout this basin are shale,' 
sandstone, and conglomerate covered with good soil. A sparse | 
growth of timber is formed at the higher elevations but the greater 
part of the area supports a growth of brush and grass that is used; 
extensively for pasturage. Small areas of cultivated land are 
devoted to raising grain. A reservoir has been constructed on the 
upper reaches of Triunfo Creek and the waters are used for irrigation 
within the basin during the summer. When filled this reservoir 
covers an area of about 300 acres. 

The mean precipitation in this basin amounts to about 25 inches 
annually and falls wholly in the form of rain. 

GAGING- STATION RECORDS. 

MALIBU CREEK NEAR CALABASAS, CALIF. 

Location. — Near center of sec. 12, T. 1 S., R. 18 W. (unsurveyed), at Chapman ranch, ' 
one-foiirth mile below mouth of Las Virgenes Creek, and about 6^ miles south- 
west of Calabasas, Los Angeles County. 

Drainage area. — 97 square miles. 

Elevation. — ^About 550 feet above sea level. 

Records available. — ^January 1, 1903, to December 31, 1906. 

Gage. — Vertical staff fastened to an alder tree on right bank, one-fourth mile below 
mouth of Las Virgenes Creek. 



MALIBU CKEBK BASIN. 



477 



Discharge measurements. — Made by floats or by wading. 

Channel and control. Rock and gravel; not permanent. Both banks are high; 
channel straight for 600 feet above and curved for 300 feet below gage. 

Diversions. — No information. 

Kegulation. — No information. 

Accuracy. — Stage-discharge relation not permanent. High-water measurements were 
made by floats. Rating curves were not well defined. Daily discharge ascer- 
tained by applying mean daily gage height to rating table, except for 1905-1906, 
for which it was determined by shifting-control method. Conditions unfavorable 
for accurate determinations. Records fair. 



Discharge measurements of Malihu Creeh near Calabasas, Calif., for 1903-1906. 



Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


1903. 




Feet. 


Sec-feet. 


1905. 




Feet. 


Sec.-feef. 


Mar. 6 


W. B.Clapp 


L30 


23 


May 12 


R. S. Havdey 


0.82 


8.5 


25 


J. G. Cliapman 


2.45 


a292 










26 


do 


2.00 


alOO 


1906. 








27 


do 


L90 


o72 


Mar. 11 


C.H.Lee 


.85 


1.0 


31 


do 


3.40 


a956 


12 


do 


2.30 


122 


Apr. 1 


do 


3.25 


o826 


25 


do 


2.80 


O406 


July 26 


W.B.Clapp 


1.12 


2.1 


Apr. 18 


do 


1.30 


19 










May 24 


do 


1.00 


7.1 


1905. 
















Apr. 20 


R. S. Hawley 


.9 


9.3 















Daily 



a Float measurement. 
discharge, in &econd-feet, oj Malihu Creeh near Calabasas, Calif, for 1903-1905. 



Day. 



1903, 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18. 

19 

20 

21 

22 

23..... 

24 

25 

26 

27 

28 

29 

30 

31 



Jan. 


Feb. 


Mar. 


Apr. 


May. 


Jmie. 


2.5 


18 


10 


817 


10 


8 


2.5 


18 


10 


362 


10 


8 


2.5 


16 


10 


179 


10 


8 


2.5 


16 


28 


128 


10 


8 


2.5 


16 


30 


72 


10 


8 


2.5 


16 


28 


72 


10 


8 


2.5 


16 


20 


72 


10 


5 


2.5 


16 


18 


33 


10 





2.5 


16 


16 


33 


10 


5 


2.5 


16 


16 


24 


10 


5 


2.5 


16 


16 


24 


10 


5 


3.5 


16 


14 


24 


10 


5 


3.5 


16 


14 


24 


10 


5 


3.5 


16 


14 


20 


10 


5 


3.5 


16 


14 


16 


10 


5 


3.5 


16 


14 


785 


10 


5 


4.5 


16 


14 


415 


10 


5 


4.5 


16 


14 


146 


10 


5 


4.5 


16 


12 


95 


10 




4.5 


16 


12 


57 


10 


5 


3.5 


16 


10 


50 


10 


5 


3.5 


16 


10 


44 


10 


5 


3.5 


16 


10 


33 


8 


5 


3.5 


16 


17 


24 


8 


5 


4.5 


16 


265 


16 


8 


5 


4.5 


16 


86 


16 


8 


5 


7 


10 


75 


13 


8 


4 


113 


10 


34 


10 


8 


4 


27 




34 


10 


8 


4 


18 




34 


10 


8 


4 


12 




525 




8 





July. 



Note. — Record stopped for the summer July 31. 



478 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Malihu Creeh near Calabasas, Calif., fm- 190S-190S — ■ 

Continued. 



Day. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


Julj. 


1903-4. 
1 


2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 

2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 


2 
2 
2 
2 
2 

2 
2 
2 

4 
4 

4 
5 
5 
5 
5 

5 
5 
5 
5 
5 

5 
5 
5 

I 

5 

5 
5 
5 

5 


5 
5 
5 
5 
5 

5 
5 
5 
5 
5 

5 
5 
5 
5 

5 

5 
5 
5 
5 
5 

5 
5 
5 
5 
5 

5 
5 
5 
5 
5 


5 
5 
5 
5 
5 

5 
5 
5 
5 

5 

5 
5 
5 
5 
5 

10 
8 
8 
5 
5 

5 
5 
5 
5 
5 

5 
8 
5 
5 


5 
5 
5 
5 
5 

6 
5 
5 
5 
33 

20 

8 
4 
4 
4 

4 
4 
4 
4 

4 

4 
4 
24 
8 
5 

5 
5 
5 

5 


5 
5 
5 
5 
2 

2 

2 

1.5 
1 
1 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 

4 

4 

4 
4 
4 

4 ' 
4 

4 

4 
4 
4 
4 


2 

2 

2 

1.5 

1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1 
1 
1 
1 
1 

1 
1 
L5 

1.5 
1.5 

1.5 


1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 


1.5 


2 


1.5 


3. 




4 




5.. . 




6 




7.. 




8 




9.. .. 




10 




11 




12.. 




13 




14.. 




15 




16 




17 




18 




19. . 




20. 




21 




22 




23 




24 




25 




26 




27 




28 




29 




30 




31 . 













Note.— Record stopped for the summer July 2. 



Day. 


Oct. 


Nov. 


Dec. 


Day. 


Oct. 


Nov. 


Dee. 


Day. 


Oct. 


Nov. 


Dec. 


1904-5. 
1 






4 
4 
5 
5 
5 

5 
5 
5 

5 


1904-5. 
11 






5 
5 
5 
5 
5 

5 
5 
5 
5 
5 


1904-5. 
21 




1 
2 

2 
2 

4 


5 


2 




12 




22 


5 


3 




13 




23 


5 


4 




14 




24 


5 


5 ., 




15 


1 


25 


5 


6 




16 


26 


5 


7 




17 


27 


5 


8 




18 


28 


5 


9 




19 


29 


5 


10 




20 


30 


5 








31 


5 









MALIBU CEEEK BASIN. 

Monthly discharge oj Malibu Creek near Calabas&.s, Calif., for 1903-1906. 
[Drainage area, 97 square miles.J 



479 





Discharge in second-feet. 




Rim-off. 


Month. 


Maximum. 


Minimiun. 


Mean. 


Per 
square 
mile. 


Depth in 

inches on 

drainage 

area. 


Total in 
acre-feet. 


1903. 
January 


113 

18 
525 

817 
10 
8 
4 


2.5 
10 
10 
10 

8 

4 

2 


8.5 
15.7 
46.0 
120.8 
9.4 
5.5 
2.6 


0.09 
.16 
.47 

1.25 
.10 
.06 
.03 


0.10 
.17 
.54 

1.39 
.12 
.07 
.03 


523 




872 


March 


2,828 




7,188 


May. . 


578 


Jime 


32"/ 


July . 


160 






The neriod 












12,500 
















1903-4. 
November . . . 


2 

5 

5 
10 
33 

5 

4 

1.5 


2 

2 
5 
5 
4 
1 
1 
1.5 


2.0 
4.1 
5.0 
5.5 
6.9 
3.0 
2.2 
1.5 


.02 
.94 
.05 
.06 

.07 
.03 
.02 

.02 


.02 
.05 
.06 
.06 
.08 
.03 
.02 
.02 


119 




252 


January 


307 


February 


316 


March , 


424 


April 


179 


May . . 


135 


June.. 


89 






The period 












1,820 
















1904-5. 
October 15-31 


1 
4 
5 
10 
560 
6,800 
41 
24 
4 
3 
3 
3 


1 
4 
5 
2 
1 
8 
4 
3 
3 
3 
1 


a 1.0 
1.2 
4.9 
5.4 

36.1 
484 

14.4 
7.3 
3.8 
3 
3 
2.1 


.01 
.01 
.05 
.056 
.372 
4.99 
.148 
.075 
.039 
.931 
.031 
.022 


.01 
.01 
.06 
.06 
.39 
5.75 
.16 
.09 
.04 
.04 
.04 
.02 


61 


November 


71 


Deeember 


301 


J anuary 


332 


February 


2,005 


March . 


29,760 


April. ... 


8.57 


May 


449 


June 


226 


July . . 


184 


August 

September . 


184 
125 






The period 












34,600 














1905-6. 
October, . 


2 

4 

4 

3 

12 

2,600 

62 

15 

7 

7 

4.4 

4.4 


1 

2 

3 
.8 
.8 
.9 

9 

7 

7 

4 

4.4 

2 


1.1 

3.6 
3.7 
1.3 
1.8 
223 
22.1 
9.1 
7.1 
4.8 
4.4 
3.6 


.011 
.037 
.038 
.013 
.019 
2.30 
.228 
.094 
.073 
.049 
.045 
.037 


.01 
.04 
.04 
.01 
.02 
2.65 
.25 
.11 
.08 
.06 
.05 
.04 


68 




214 


December 


228 


January 


80 


February 


100 


March 


13,700 


April 


1 320 


May 


^560 


June . 


422 


July 


2<>5 


August . 


271 


September 


214 






The vear . ... 


2,600 


.8 


23.0 


.247 


3.36 


17,500 




1906. 
October 


4.4 
4.4 
275 


4.4 
4.4 
2 


4.4 
4.4 
19.8 


.045 
.045 
.204 


.05 
.05 
.24 


271 


November 


262 


December 


1,220 







a Taken as mean for month. 

Note.— During 1905-6 discharge was determined by the indirect method for shifting control channels. 
Records are only approximate. 



480 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN" CALIFORNIA. 
TItlTJNFO CREEK NEAR CALABASAS, CALIF. 

Location. — In NW. | sec. 12, T. 1 S., R. 18 W. (unsurveyed), half a mile above 
junction with Las Virgenes Creek and 6^ miles southwest of Calabasas, Loa 
Angeles County. 

Drainage area. — 72 square miles. 

Elevation. — About 550 feet above sea level. 

Records available. — January 1, 1903, to December 31, 1906. 

Gage. — Vertical staff bolted to rock cliff on right bank half a mile above junction 
with Las Virgenes Creek to form Maiibu Creek. 

Discharge measurements. — Made by floats or by wading. 

Channel and control. — Gravel and sand; shifting. Both banks are high and 
rocky; channel straight for 400 feet above and 800 feet below gage. 

Diversion.— No information. 

Regulation. — No information. 

Accuracy — Stage-discharge relation not permanent. High- water measurements 
were made by floats. Rating curves were not well defined. Daily discharge 
ascertained by applying mean daily gage height to rating table, except for 
1905-1906, for which it was determined by shifting-control method. Condi- 
tions unfavorable for accurate determinations. Records fair. 

Discharge measurements of Triunfo Creeh near Calabasas Cab'/., jor 1903-1906. 



Date. 


Made by— 


heignt. 


Dis- 
charge. 


Date, 


Made by- 


height. 


Dis- i 
charge. 


1903. 
Mar. 6 


W.B. Clapp 

J. G. Chapman 

do 

do 

do 

do 

do 

W.B. Clapp 

R. S. Hawley.. . 


Feet. 
1.15 
1.75 
1.15 
1.05 
2.75 
2.35 
2.30 
.40 

1.60 
1.44 


Sec.-ft. 
23 
155 
a 40 
a 13 
ol,075 
o625 
a 551 
1.0 

8.0 
7.1 


1906. 

Mar. 11 

11 

12 

25 

25 

25 

26 

Apr. 18 

May 24 


C. H. Leo.. 


Feet. 
1.25 
1.38 
2.25 
2.95 
2.79 
3.00 
4.50 
2.00 
2.05 


Secf.^ 


25 
26 
27 
31 

Apr. 1 
16 

July 26 

1905. 
Apr. 20 
May 12 


do 

do 

do 

do 

do 

do 

do 

do 






1.8 
98 
459 
313 
399 
o2,320 
19 
6.1 


do 











a Measured by floats. 



MALIBU CREEK BASIN. 481 

Daily discharge, in second-feet, of Triunfo Creek near Calabasas, Calif, for 1903~4- 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May 


Jime 


July 


1903. 
1 


1.5 
1.5 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
2.0 

2.0 
1.5 
1,5 
1.5 
1.5 

1.5 
2.0 
2.0 
2.0 
2.0 

1.5 
1.5 
1.5 
2.0 
2.0 

2.0 
3.0 

23 

12 

8 
8 


8 
12 
12 
12 
12 

12 
12 
12 
12 
12 

12 
12 
12 
12 
12 

12 
12 
12 
12 
12 

12 
12 
12 
12 
12 

12 

8 
8 


8 
8 
8 
28 
22 

16 
- 16 
16 
16 
12 

12 
12 
12 
12 
12 

12 
12 
12 
12 
12 

8 
8 
8 

16 
102 

19 
12 
12 
12 
12 
373 


504 
90 
35 
26 
19 

16 
14 
12 
12 

8 
8 
8 
8 
8 

411 
250 
74 
60 
46 

35 
30 
26 
19 
14 

14 
12 
9 
9 
9 


9 
9 
9 
9 
9 

9 
9 
9 
9 
9 

9 
9 

8 
8 
8 

8 
8 
8 
8 
6 

6 
6 
6 
6 
6 

6 
6 
6 
6 
4 
4 


3 

3 
3 
3 
3 
3 

3 
2 
2 
2 
2 


2 


2 


2 


3 


2 


4 


2 


5 


2 


6 


2 


7 . 


2 


8-. 


2 


9 


2 


10... 


2 


11 


2 


12 


2 


13... 


2 


14 


2 


15 


2 


16 


2 


17 


2 


18 


2 


19 .;.. 


2 


20.. 


2 


21 ... . .... 


2 


22 


2 


23 


2 


24... 


2 


25 


2 


26.. 


2 


27 


2 


28 


2 


29 


2 


30 


2 


31... 


2 







Note, — Record stopped for the summer July 31. 



Day. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


1903-4. 
1 


























2 
2 
2 
2 
2 

2 
2 
1 
1 
1 


1 

1 
1 
1 


1 
1 
1 

1 
1 

1 
2 
2 
2 
2 

2 
2 
2 
3 
3 

3 
3 
3 
3 
3 

3 
3 
3 
3 
3 
3 


3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

3 
3 
3 
3 
3 
3 


3 
3 
3 
3 
5 

4 
4 
3 
3 
3 

3 
3 
3 
3 
5 

8 
6 
6 

4 

4 

4 
4 
4 
4 

4 
6 
4 
4 


3 
3 
3 
3 
3 

3 
3 

2 
2 

26 

14 
4 
3 
3 
3 

3 
3 
3 
3 
3 

3 
3 
19 
6 
5 

4 
4 
4 
3 
3 
3 


3 

2 
2 
2 
2 

2 

2 

1 

.5 
.5 

.5 
.5 
.5 

1 
2 

2 

3 

. 3 

4 
2 

2 
2 
2 
2 
2 

2 
2 

2 
2 
2 


2 


2 


2 


3 


2 


4 


2 


5... 


2 


6 


2 


7 . 


2 


8 


2 


9... 


1 


10 


1 


11... 


.5 


12 




13.... 




14... 




15 




16 




17 . . 




18... 




19 




20 




21 




22 




23... 




24 




25 




26 




27 




28 .. 




29 




30 




31 













Note,— Stream dry May 12 to Sept, 30. 

142131°— 21^WSP 447- 31 



482 SUKEACE WATER OF PACIFIC SLOPE, SOUTHERIT CALIFORNIA. 

Monthly discharge of Triunfo Creeh riear Calabasas, Calif., for 1903-1906. 

[Drainage area,, 72 square miles,] 



Discharge in second-feet. 



Maximum. ! Minimtxm, 



Per 
square 
mile. 



Run-off. 



Depth in 
inches on 



January... 
February . 

March 

April 

May 

June ...... 

July., 



23 

12 
373 
510 



3.3 

11.6 
27. .5 
60.0 

7.-5 
3.6 
2.0 



.10 
.05 
.03 



0.06 
.17 
.45 
.93 



The perici 



November . 
December. . 
January — 
February . . 

March 

April 

my 



2.0 
3 



The period . 



January — 
February . . 

March 

April 

May 

June 

July 

August 

September . 




410 
5,000 
40 
6 
2 
1 





.0 

26.2 

353. Q 

11.2 

1.0 

1.3 

.97 

.0 

.0 



October 

November . 
December. . 
January — 
February . . 

March 

April 

May 

June 

July 

August 

September . 







0.7 
10 
2,000 
55 
12 



.0 
.0 
.0 
.2 
1.1 
155 
19.3 
6.9 
6.0 
3.6 
1.7 



The year . 



October 

NoA-ember . 
December. . 





4 

100 





1.5 
10.8 



.01 
.03 
.04 
.08 
.07 
.02 
.01 . 



.02 
.01 



.0 
.364 
4.90 
.156 
.014 
.018 
.013 
.0 
.0 



.0 
.38 
5.65 
.17 
.02 
.02 
.02 
.0 
.0 



.0 
.0 
.0 

.0028 
.015 
2.15 



.083 
.060 
.024 
.00 



.0 
.003 
.02 
2.48 
.30 
.11 
.09 
.06 



.0 

.021 

.150 



.0 
.02 
.17 



Note.— Discharge for 1905-6 detei'mined by the indirect method for shifting control. 

SANTA CLARA RIVER BASIN. 

GENERAL FEATURES. 

Santa Clara River rises in Soledad Canyon, in the northwest end 
of the Sierra Madre, in Los Angeles County, Calif., and flows westward 
through what are known locally as the Piru, Sespe, and Santa Clara 
valleys. The stream is augmented by live tributaries, which enter it 
from the north — the San Francisquito, the Castac, the Piru, the 



SANTA CLARA EIVER BASIN. 



483 



Sespe, and the Ojai. The river passes through Ventura County and 
empties into the Pacific Ocean about 3 miles south of Ventura. 

For the lower 40 miles of its course the channel of Santa Clara 
River is broad and sandy. A. remarkable feature is the small run-off 
from this large drainage basin. The flood stages of the stream occur 
almost wholly in the winter, and at most points on the drainage line 
the channel is dry during the summer. 

The valley through which the river flows is of a high order agri- 
culturally, and its products include all the citrus fruits common to 
California. 

GAGING- STATION RECORDS. 
SANTA CLARA RIVER AT FIIXMORE, CALIF. 

Location. — In NW. ^ sec. 31, T. 4 N., R. 19 W., at highway bridge 1^ miles above 
mouth of Sespe Creek and half a mile southwest of Fillmore, Ventura County. 

Drainage area. — Not measured. 

Elevation. — About 400 feet above sea level. 

Records available. — August 31, 1911, to September 30, 1912. 

Gage. — Vertical staff fastened to piling neai' right end of bridge. 

Discharge measurements. — Made from bridge at gage or l)y wading. 

Channel and control. — Shifting sand. 

Diversions. — Water is diverted for irrigation from main river and tiibutaiies above 
the station. 

Regulation. — No information. 

Accuracy. — Stage-discharge relation not permanent. Rating curves only fairly well 
defined. Daily discharge ascertained by applying mean daily gage heights to 
rating tables covering short periods or by shifting-control method. Records fair. 

Discharge measurements of Santa Clara River at Fillmore, Calif ., for 1911-12. 



Date. 


Made by — 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1911. 
Oct. 25 


F. C. Ebert 


Feet. 
2.40 
2.40 

2.23 
2.22 
2.14 
2.07 


Sec.-ft. 
23 
23 

27 

26 
20 
14 


1912. 
Mar. 16 

25 
Apr. 25 
May 13 
June 26 
Aug. 7 

19 
Sept. 6 


F. C. Ebert 


Feet. 
2.57 
2.81 
3.32 
3.24 
2.96 
2.70 
2.30 
2.50 


Sec.'ft. 
91 


25 


Lasley Lee . . 


do.. 

do 

do 

do 

do... 

do 

do 


64 


1912. 
Jaji. 8 


F. C. Ebert 


40 
34 
18 


26 

Feb. 4 

29 


do 

do 

do 


16 
6.5 
14 



Note. — All measurements made by wading. 
Daily discharge, in second-feet, of Santa Clara River at Fillmore, Oalif.,for 1911-12. 



Day. 


Aug. 


Sept. 


Day. 


Aug. 


Sept. 


Day. 


Aug. 


Sept. 


1.. 


1911. 


- 


36 
36 
41 
43 
36 

36 
36 
39 
34 

39 


11.. 
12.. 
13.. 
14.. 
15.. 

16.. 


1911. 




39 
39 
39 

39 
39 

41 
36 
36 
41 
45 


21.. 

22.. 
23.. 

24.. 
25 


1911. 




41 


2.. 













36 


3 












^3 


4 












43 


5 












43 


6 








26.. 
27.. 
28.. 
29.. 
30.. 
31.. 






43 






17 








43 


8 




18 








43 


9 




19 . . 








43 


10 




20 








43 














36 











484 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Santa Clara River at Fillmore, Calif., for 1911-12 — 

Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1911-12. 
1 


43 
45 
45 
45 
39 

39 
45 
45 
45 
51 

47 
41 
41 
61 
41 

41 
41 
49 
49 
43 

43 
43 
49 
24 
24 

25 
25 
25 
25 
25 
25 


26 
26 
26 
26 
26 

26 
27 
27 
27 
27 

27 
27 

28 
28 
28 

28 

28 
28 
29 
29 

29 
29 
29 
29 
30 

30 
30 
30 
30 
30 


31 
31 
31 
31 
31 

31 
31 
31 
31 

^.^ 
25 
25 
25 
25 
25 

25 
25 
25 
25 
25 

26 
26 
26 
26 
26 

26 
26 
26 
26 
26 
26 


29 
29 
29 
29 
29 

29 
29 
29 
29 
29 

29 
29 
29 
29 
29 

29 
29 
29 
29 
29 

29 
29 
29 
29 
25 

25 
25 
25 
25 
25 
29 


29 
29 
29 
21 
21 

25 
25 
25 
21 
21 

21 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
21 
21 
21 


25 
25 
25 
86 
112 

182 
70 
131 
245 
148 

50 
132 
52 
95 
93 

93 
109 
103 

85 
80 

75 
78 
72 
68 
63 

33 
32 
30 
53 
22 
50 


55 
53 
51 
42 

147 

143 
138 
135 
68 
66 

64 
62 
38 
36 
33 

52 
50 
48 
78 
95 

92 
80 
31 
31 
31 

31 
31 
31 
31 
34 


34 
31 
34 

34 
34 

34 
42 
46 
46 
46 

38 
34 
34 
34 
34 

34 
34 
34 

28 
28 

38 
38 
38 
38 
38 

38 
38 
38 
38 
38 
42 


42 
42 
38 
38 
38 

38 
42 
42 
42 
42 

38 
38 
38 
42 
42 

42 
38 
38 
38 
42 

42 
42 
42 
38 
38 

18 
18 
18 
18 
13 


20 
20 
21 
21 
21 

21 
21 
21 
22 
22 

22 
22 
22 
22 
23 

23 
24 
24 
24 
24 

25 
25 
25 
25 
25 

25 
26 
24 
24 
24 
24 


24 
25 
25 
25 
25 

17 
16 
15 
14 
14 

3 

12 
11 
10 
9.7 

8.9 
8.1 
7.3 
6.5 
6.5 

12 
12 
12 

12 
12 
12 
14 
14 
14 


14 


2 


14 


3 


14 


4 


14 


6 


14 


6 


14 


7 


15 


8 


17 


9 


18 


10 


18 


11 


19 


12 


20 


13 


20 


14 


21 


15 


22 


16 


23 


17 


23 


18 


24 


19 


25 


20 


25 


21 


25 


22 


25 


23 


27 


24 


27 


25 


29 


26 


30 


27 


31 


28 


21 


29 ........ 


32 


30 


32 


31 









Note. — Daily discharge determined from fairly well defined rating curves and by the indirect method 
for shifting-control channels. Interpolated between measurements Aug. 8-20, 1912. 

Monthly discharge of Santa Clara River at Fillmore, Calif , for 1911-12. 





Discharge in second-feet. 


Run-oft' 
(total in 
acre- 
feet). 


Month. 


Discharge in second-feet. 


Run-oflf 
(total in 
acre- 
feet). 


Month. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mni- 
mum. 


Mean. 


1911. 

September 

October 


45 
51 
30 
31 

29 
29 
245 


34 
24 
26 
25 

25 
21 
22 


39.7 
39.3 
28.0 
27.3 

28.2 
22.2 
81.2 


2,360 
2,420 
1,670 
1,680 

1,730 
1,280 
4,990 


1912— contd. 
April ... 


147 
46 
42 
26 
25 
32 


31 
28 
13 
20 
6.5 
14 


62.6 
36.6 
36.2 
23.0 
13.9 
22.1 


3,720 


May 


2,250 
2,150 
1,410 


November 


June 


December .... 


July 




August 


855 


1912. 


September 

The year 


1,320 


February 

March 


245 


6.5 


35.1 


25,500 



PIRIT CREEK NEAR PIRTI, CALIF. 

Location. — In southern part of Temescal grant, below suspension footbridge in Santa 
Barbara National Forest, 1\ miles below Holser Canyon, 2 miles above junction 
with Santa Clara River, and If miles northeast of Piru, Ventura County. 

Drainage area. — 432 square miles (measured on topographic maps). 

Elevation. — ^About 700 feet above sea level. 

Records available. — October 28, 1911, to September 5, 1913. (Discharge measure- 
ments only, October 28, 1911, to February 29, 1912.) 

Gage. — Vertical staff in two ser^tions fastened to Cottonwood tree on right bank, 
about 300 feet below bridgjs. 



SANTA CLARA RIVER BA^m, 



485 



Discharge measurements. — Made from railroad bridge 1 mile below gage or by 

wading. 
Channel and control. — Gravel and sand; shifting. 
Diversions. — ^Water is diverted above the station through a 4-inch pipe for municipal 

supply at Piru. 
Regulation. — No information. 
Accuracy. — Stage-discharge relation not permanent. Rating curves only fairly 

well defined. Daily discharge ascertained by applying mean daily gage height 

to rating tables covering short periods or by shifting-control method. Records 

fair. 

Discharge measurements of Piru Creek near Piru, Calif., for 1911-1913. 
[MadebyF.C. Ebert.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge. 


1911. 


Feet. 


'-4'- 


1912. 


Feet. 


Scc.-ft. 


1913. 


Feet. 


Sec.-ft. 


Oct. 28 


2.57 


Aug. 19 


2.88 


9.3 


Mar. 6 


3.90 


271 








Sept. 6 


2.88 


7.5 


9 


4.00 


281 


1912. 






Oct. 11 


2.88 


9.7 


31 


3.55 


140 


Jan. 8 


2.93 


31 


Nov. 7 


2.93 


15 


Apr. 2 


3.66 


158 


25 


2.92 


30 


Dec. 4 


2.74 


16 


28 


3.76 


55 


Feb. 4 


2.89 


25 








30 


3.22 


51 


29 


2.95 


27 


1913. 






May 21 


2.82 


24 


Mar. 16 


3.60 


160 


Jan. 6 


2.71 


11 


23 


2.80 


25 


25 


3.36 


111 


8 


2.72 


13 


June 5 


3.03 


48 


May 12 


3.49 


80 


29 


4.23 


28 


24 


2.62 


17 


16 


3.30 


64 


31 


4.22 


25 


26 


2.63 


20 


June 26 


2.90 


18 


Feb. 12 


3.98 


55 


Aug. 13 


2.40 


6.6 


Aug. 7 


2.85 


7.6 


27 


4.05 


483 


17 


2.43 


7.4 



Note.— 1911-12: All made by wading. 

Daily discharge, ip, second-feet, of Piru Creeh near Piru, Calif., for 1912-13 



Mar. Apr. May. June. July. Aug. Sept, 



1912. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11„ 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



37 
37 
37 
137 
137 

310 
170 
123 
130 



162 
198 
153 
145 
137 

137 
137 

145 
145 
153 

153 
145 
145 
130 
122 

122 
114 
122 
122 

122 
114 



114 
114 
114 

114 
122 
130 
137 
216 

132 
U5 
115 
100 
100 

100 
100 
100 
100 
100 

85 

72 
78 
78 
78 

78 
78 
72 
72 



60 
124 
124 
115 
108 



10 
9 
9 
9 



7.6 
7.8 
8.0 
8.1 

8.2 
8.3 



8.7 
8.9 



9.0 

8.9 
8.8 

8.7 



8.3 
8.2 
8.1 



Note.— Daily discharge determined from fairly well defined rating curves applicable as follows: Feb. 1 
to Mar. 6; Mar . 7 to Apr. 10; and Apr. 11 to June 25. Shifting-control method from June 26 to Sept. 30. 



486 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORlSriA. 

Ddily discharge, in second-feet, of Piru Creek near Piru, Calif., for 1912-18 — Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1912-13. 
1 


11 

15 
15 
30 

15 

15 
10 
10 
10 

10 

10 
10 
10 
10 
10 
10 
10 
10 
10 
10 

10 
10 
10 
10 
10 
10 
15 
15 
15 
15 
15 


15 
15 
15 
15 
15 

15 
16 
15 
15 
25 

25 
25 
25 
25 
25 

25 
25 
25 
25 
25 

25 

25 
25 
20 
20 

20 
20 
20 
20 
20 


20 
16 
16 
16 
16 
16 
16 
16 
16 
16 

16 
16 
16 
16 
16 

18 
16 
16 
16 
16 

16 
16 
16 
16 
16 

16 
16 
16 
16 
16 
16 


13 
13 
13 
11 
11 
11 
13 
13 
16 
16 

16 

16' 

16 

16 

250 

220 

250 

215 

190 

155 

125 

no 

85 
60 
50 

42 
35 
32 
28 
28 
25 


30 
30 
35 

40 
45 

85 
260 
200 
255 
225 

165 
55 
55 
45 
45 
40 
35 
35 
30 
25 

25 

20 

50 

1,250 

1,100 

■650 

483 

450 


420 
390 
360 
330 
800 

271 
270 

280 
281 
274 
268 
262 
256 
250 
244 
238 
232 
228 
220 
214 

208 
202 
196 
190 
184 

178 
172 
166 
160 
154 
148 


157 

157 
154 
150 
146 
142 
138 
134 
130 
126 

122 
118 
114 
110 
106 
102 
98 
94 
90 
86 

82 
78 
74 
70 
66 

62 
58 
55 
53 
51 


48 
44 
43 
41 
40 
38 
37 
34 
34 
33 
31 
29 
29 
28 
28 
26 
• 26 
26 
25 
25 
24 
24 
25 
25 
23 
22 
22 
21 
20 
20 
20 


20 
27 
29 
60 

67 

91 
148 
51 
37 
33 

29 
29 
26 
22 
22 
22 
22 
19 
16 
16 

16 
16 
16 
16 
16 
16 
22 
29 
22 
19 


9 


7 

7 
165 
130 
104 
82 
59 


37 


2 


28 


3 


19 


4 


13 


5 


7 


6 




7 




8 




9 




10 




11 . , 




12 




13 




14 




15 




16 




17 




18 




19... 




20 




21 




22 




23 




24... . 




25 




26,. 




27 




28 




29 




30... 




31.. 









Note.— Daily discharge Oct. 1, 1912, to June 4, 1913, determined by interpolation between discharge 
measurements and study of observer's weather notes and by shifting-control method; accuracy only 
approximate. Discharge June 5 to Sept. 30, 1913, determined from a rating cuv^e v/ell defined below 100 
second-feet. 

Monthly discharge of Piru Creeh near Piru, Calif., for 1912-lS. 

[Drainage area, 432 square miles.] 





Discharge in second-feet. 


Rur 


-off. 


Month. 


Maximum. 


Minimum. 


Mean. 


Per 

square 
mile. 


Depth in 

inches on 

drainage 

area. 


Total in 
acre-feet. 


1912. 
January. . . 






a 30 
a 26 
136 
104 
69.0 
32.6 
13.6 
8.62 
8.11 


0.069 
.060 
.315 
.211 
.160 
.075 
.031 
.020 
.019 


0.08 
.06 
.36 
.27 
.18 
.08 
.04 
.02 
.02 


1,840 
1,500 


February 






March 


310 
216 
124 

-18 
17 
10 
8.9 


37 

72 

48 

18 

10 
7.6 
7.5 


8,360 
6,190 
4 240 


April... 


May.. . 


June 


1'940 


July 


836 


August 

September. . 


530 
483 






The period 












25,900 
















1912-13. 
October. 






12.1 
20.8 
16.1 
67.5 

206 

243 

104 
29.4 
32.5 
11.2 
23.4 






744 


November ! 








1,240 


December 











990 




250 

1, 250 

420 

157 

18 
148 

14 
165 

37 


11 
20 

148 
51 
20 
16 
9 
7 
7 






4,150 


FebiTiary .... 






11,400 


March 






14,900 








6,190 


May 






1,810 


June 






1,930 


July 






689 


August 






1,440 


September 1-5 


20.8 






206 










The period 












45,700 

















SANTA CLAEA RIVER BASIF. 



487 



SESPE CSEEK NEAR SESPE, CAUF. 

Location. — At Bradfields Camp, in Santa Barbara National Forest, three-fourths 
mile below mouth of West Fork of Sespe Creek, 4^ miles above intake of Fill- 
more canal, and 6^ miles northwest of Sespe, Ventura County. 

DRi^iNAGE AREA. — 216 square miles (measured by Ralph Bennett, consulting engi- 
neer). 

Elevation. — About 1,400 feet above sea level. 

Records available. — October 1, 1915, to August 3, 1918. 

Gage. — Painted on large boulder and on rock cliff on left bank. 

Discharge measurements. — Made from cable 250 feet above gage or by wading. 

Channel and control. — Bed composed of gravel and large boulders; fairly perma- 
nent. 

Extremes of discharge. — 1915-1918: Maximum stage recorded, 18.7 feet January 
17' 1916 (discharge. 18,600 second-feet); minimum stage, 4.33 feet during Sep- 
tember and October, 1917 (discharge, 3.6 second-feet). 

Diversions. — No information. 

Regulation. — No information. 

Accuracy. — Stage-discharge relation not permanent. The flood in January, 1916, 
caused a slight scour in channel. Several fairly well-defined rating curves have 
been used. Gage read to hundredths; number of readings a day not known. 
Daily discharge ascertained by applying gage height, as reported, to rating table. 
Records good, except March 8 to August 3, 1918, which are only fair on account 
of changes in control. 

Cooperation. — Gage-height record and nearly all discharge measui'ements furnished 
by Sespe Light & Power Co. 

Discharge measurements of Sespe Creek near Sespe, Calif., for 1915-1918. 



1915. 

Sept. 7 

9 

Nov. 3 

Dec. 4 

1916. 

Jan. 2 

3 

4 

17 

17 

18 

19 

21 

27 

Mar. 10 

Apr. 4 

20 

May 31 

June 20 

July 15 

Sept. 14 

29 

Oct. 15 

Not. 5 

Dec. 10 

1917. 

Jan. 6 

28 

Feb. 5 

12 



Made by — 



G. H. Killgore 

do 

....do 

....do 



G. H. KUlgore.. 
do. 
do. 



....do 

....do 

....do 

....do 

....do 

do 

....do 

....do 

do 

do 

do 

do 

F. C. Ebert 

J. F. Waggoner. 

do 

....do 

....do 



J. F. Waggoner.. 

.do. 



F.C. Ebert 

J. F. Waggoner. 

do 

do 

do 

do 

do 

do 

do 

do 



Gage 
height. 



5.06 
5.62 



Sec-ft. 
10 



.508 
292 
L,320 
),100 
-.400 
5,700 
1,550 



218 

108 
66 
42 
23 
20 
9.7 
8.4 



131 
110 



416 
42^ 
901 
905 
3,970 
133 
108 



Aug. 



Sept, 



1917. 

Apr. 15 
21 
28 

Mav 5 
12 
19 
26 

Jimc 24 
30 

July 1 
15 
28 
5 
11 
19 
26 
1 
8 
15 
22 
29 



1918. 

Fob. 2 
10 
15 

Mar. 1 
9 
16 
24 
30 

Apr. 6 

Junf. 16 
23 
30 

July 7 
14 

Aug. 2 



Made by— 



J.F.Waggoner 
do - 










....do.... 
....do.... 
...-do.... 
....do.... 
....do.... 
....do.... 
....do.... 
....do.... 








....do.... 

....do.... 

....do.... 

.do 








....do.... 
....do.... 
....do.... 
....do.... 
....do.-.. 
....do.... 
....do.-.. 
....do.... 
....do.... 









J. F. Russeil. 

do.. 

do.. 

do.. 

do.. 

do.. 

do.. 

do.. 

do.. 

do.. 

do.. 

.do.. 



....do 
....do 
F. C. Ebert 



height. 



Feet. 
5.32 
5.21 
5.20 
5.10 



i.44 
4.47 
4.48 
7.20 
8.20 
8.40 
8..T0 
7.60 
6.80 
5.10 
4.85 
4.75 
4.75 
4.70 
4.60 



Dis- 
charge. 



Sec.'ft. 
66 
60 
62 
48 
36 
31 



4.94 


31 


4.58 


10 


4.-56 


8.9 


4. 53 


8.6 


4.48 


7.0 


4.43 


4.3 


4.41 


4.6 


4.3H 


3.9 


4.39 


4.4 


4.37 


4.4 


4.36 


4.5 


4. 33 


3.7 


4. 35 


3.5 


4. 34 


3.8 


4.34 


3.7 


4.34 


3.9 


4.36 


4.3 



8.4 

7-5 
421 
623 
475 
433 



53 
51 
17 



488 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORITIA. 

Daily discharge, in second-feet, of Sespe Creeh near Sespe, Calif., for 1915-1918. 



r>ay. 



Apr. 



July. 



1915-16. 

1 

2........ 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



605 
560 



144 
110 
106 
850 
440 



119 

480 
228 

253 
8,100 
11, 400 
2,320 
1,080 

615 
495 
390 
375 
360 

345 

6,500 

1,360 

900 

?05 



495 
442 
390 
360 
330 



275 
262 

250 
250 
238 
225 
215 

205 
195 
185 
185 
175 

185 
165 
156 
147 
156 

205 

1,180 

460 

300 



275 
262 
250 
238 
390 

275 
250 
238 
225 
215 

205 
195 
185 
165 
165 

161 
156 
152 
147 

250 

195 
175 
161 

154 

147 

138 
132 
125 
119 
113 
110 



85 
116 



Note. — No gage-height record Apr. 30 to May 6; discharge interpolated. 



31.. 



26 


21 


22 


65 


96 


240 


86 


47 


25 


8.5 


5.5 


122 


21 


24 


64 


94 


228 


81 


41 


24 


8 


5.5 


27 


24 


38 


88 


94 


205 


81 


39 


23 


8 


5.5 


35 


24 


36 


99 


90 


174 


80 


37 


21 


8 


5.5 


26 


23 


34 


94 


85 


163 


80 


42 


21 


8 


5 


52 


23 


26 


99 


82 


154 


79 


33 


20 


8 


5 


58 


24 


25 


87 


86 


144 


78 


33 


20 


8 


5 


36 


24 


24 


79 


81 


127 


78 


33 


19 


8 


5 


35 


.23 


24 


68 


80 


127 


76 


34 


18 


7.5 


5 


34 


21 


24 


74 


76 


127 


75 


34 


17 


7 


4.8 


47 


23 


24 


75 


73 


111 


71 


34 


16 


7 


4.6 


40 


23 


24 


86 


72 


96 


67 


33 


16 


7.5 


4.8 


34 


22 


24 


330 


71 


91 


65 


29 


15 


7 


4.8 


33 


22 


24 


315 


70 


90 


67 


29 


14 


7 


4.8 


27 


23 


24 


315 


68 


90 


65 


30 


14 


6.5 


4.8 


26 


22 


24 


100 


68 


89 


67 


30 


12 


6 


4.8 


25 


22 


24 


156 


74 


88 


68 


30 


10 


6 


4.8 


25 


22 


24 


158 


68 


88 


65 


33 


10 


6 


4.8 


24 


22 


24 


163 


72 


87 


61 


31 


9.5 


6 


4.8 


24 


23 


24 


425 


300 


86 


56 


30 


9.5 


6 


4.8 


24 


22 


24 


300 


420 


86 


53 


29 


9.5 


6 


4.6 


23 


22 


24 


161 


903 


85 


52 


28 


9.5 


6 


4.4 


24 


23 


24 


117 


440 


84 


53 


28 


9.5 


6 


4.4 


23 


23 


478 


107 


3,830 


84 


62 


29 


9.5 


5.5 


4.4 


22 


22 


1,360 


103 


695 


83 


52 


30 


9 


5.5 


4.4 


22 
21 


23 
22 


425 
101 


106 
142 


370 
240 


82 
82 


52 
52 


30 

28 


9 
9 


5.5 
5.5 


4.4 
4.4 


20 


23 


86 


135 


228 


82 


52 


28 


8.5 


5.5 


4.2 


20 
21 
20 


24 
23 


75 
63 
63 


132 
122 

108 




86 
90 
90 


50 

48 


28 
28 
26 


8.5 
9 


5.5 

5 

5 


4.2 
4.2 
4.2 







Note.— Discharge interpolated Mai-. 14-26 and Sept. 30. 



Daily disc 


harge, 


in second-feet, of Sespe Ore 


3k near Sespe, Cal 


^/.,> 


1915- 


1918- 


-Con. 


Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1917-18. 
1 . . 


3.8 
3.8 
3.8 
3.6 
3.6 

3.6 
3.8 
3.8 
4.0 
4.0 

4.2 

4.2 
4.2 
4.2 








6 

6 

6 

6 

6 

5.5 

6 

6 

6 

6.5 

6.5 

6 

6 

6 

6.5 

7 

7 
25 
15 
615 

2,320 
7,500 

905 

370 
1,800 
1,020 

628 

480 


440 
440 
405 
370 
405 

1,800 

6,350 

1,370 

623 

6,350 

1,940 

4,130 

1,700 

1,070 

600 

475 

365 

335 

3,220 

1,450 

690 

645 

515 

433 

410 

385 

360 

340 

320 

303 

286 


269 
252 
235 
218 
201 
185 
195 
193 
192 
190 

191 
175 
165 
159 
155 

153 
149 
145 
135 
127 
127 
119 
111 
111 
104 
97 
97 
90 
94 
100 


Ill 
111 
104 
97 
100 

97 
94 
94 
97 
90 

83 
83 

77 
77 
80 

80 
77 
74 
71 
71 
74 
77 
77 
74 
71 
74 
74 
71 
71 
74 
71 


7^1 
74 
71 
71 
68 

68 
66 
64 
64 
61 
61 
57 
57 
57 
53 
■ 57 
56 
56 
55 
. 55 
54 
54 
54 
54 
53 
53 
53 
52 
52 
52 




52 
52 
52 
53 
53 

53 
53 
53 
53 
52 


17 
17 
17 




2 










3 










4 . . 










5 












6 . - 












7 












g 












9 












10 












11 








52 
51 
51 
51 
51 






12 












13 












14 ... 










. 


15 












36 










49 
47 
45 
43 
41 

39 
37 
35 
33 
31 
29 
27 
25 
23 
21 
19 






17 














18 














19 














20 










■ 




21 . . . . 














22 














23 














24 














25 








6 

6 

6.5 

5.5 

5.5 

6 

6 






26 . . 












27 












28 












29 ... 












30 














31 





























Note.— No gage-height record Oct. 15 to Jan. 24. Discharge interpolated Mar. 24 to Apr. 5 and June 16 
to Aug. 3. 

Monthly discharge of Sespe Creek near Sespe, Calif, for 1915-1918, 

[Drainage area, 216 square miles.] 



Discharge in second-feet. 



Per 
square 
mile. 



Depth in 

inches on 

drainage 

area. 



Total in 
acre-feet. 



1915-16, 

October 

November 

Decem-ber 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year 

1916-17. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 
>m 

The year. 



18 
20 
111 
11,400 
1,180 
390 
116 
50 
33 
23 
18 
27 



18 
18 
18 
46 
147 
110 
51 
33 
21 
18 
16 
16 



18 

18.8 
25.3 
1,320 
294 
193 
78.8 
39.4 
25.8 
19.8 
16.9 
16.5 



0.083 
.087 
.117 
6.11 
1.36 
.894 
.365 
.182 
.119 
.092 
.078 
.076 



0.10 
.10 
.13 
7.04 
1.47 
1.03 
.41 
.21 
.13 
.11 



1,110 
1,120 
1-560 
81,200 
16,900 
11,900 
4,690 
2,420 
1,540 
1,220 
1,040 



11,400 



122 

24 

,360 

425 



47 

25 
8.5 
5.5 
4.2 



20 
21 
22 
64 



48 
26 
8.5 



32.1 
22.6 
105 
144 
319 
114 
65.4 
32.1 
14.2 
6.61 
4.75 
3.81 



0. 149 
.105 
.486 
.667 

1.48 
.528 
.303 
.149 
.066 
.031 
.022 
.018 



0.17 
.12 
.56 
.77 

1.54 
.61 
.34 
.17 
.07 
.04 
.03 
.02 



1,970 

1,340 

6,460 

8,850 

17,700 

7,010 

3,890 

1,970 

845 

406 

292 

227 



3,830 



70.4 



4.44 



51,000 



490 SURFACE WATEE OF PACIFIC SLOPE, SOUTHEEIT CALIFORlsTIA. 
Monthly discJiarge of Sespe Creeh near Sespe, Calif., for 1915-1918 — Continued. 



Discharge in second-feet. 



Per 

square 
mile. 



Depth in 

inches on 

drainage 

area. 



Total in 
acre-feet. 



October 1-14 . . 
January 25-31 . 

February 

Miirch 

April 

May 

June 

July 

August 1-3 

September 



7,500 
6,350 



53 

17 



3.6 
5.5 
5.5 
286 

90 

71 

52 

19 

17 



3.90 
5.79 
564 
1,240 
158 
83.1 
59.2 
42.8 
17.0 



0.018 
.027 
2.61 
5.74 
.731 
.385 
.274 
.198 
.079 



0.01 
.01 
2.72 
6.62 
.82 
.44 
.31 
.23 
.01 



108 
80.4 
31,300 
76,200 
9,400 
5,110 
3,520 
2,630 
101 



SESPE CREEK AT SESPE, CALIF. 

Location.— In NW. i sec. 25, T. 4 N., R. 20 W., at Southern Pacific Co.'s bridge 

1^ miles above junction with Santa Clara River, and half a mile southeast of 

Sespe, Ventura County. 
Drainage area. — Not measured. 
Elevation. — About 450 feet above sea level. 
Records available. — August 31, 1911, to September 30, 1913. 
Gage. — Vertical staff in tv»^o sections, installed January 7, 1913; lower section is 

fastened to boulder in center of channel just below bridge; upper section is on 

left abutment of bridge. Original gage, at same datum, was an inclined staff in 

two sections on left bank at bridge. 
Channel and control. — Gmvel; will shift at high stages. 
Discharge measurements. — ^Made from railroad bridge or by wading. 
Diversions. — The Fillmore Irrigation Co.'s canal, which takes out about 4 miles 

above the station, furnishes water for irrigation and domestic use -at Sespe and 

Fillmore. 
Regulation.— No information. 
Accuracy. — Stage-discharge relation not permanent. Rating curves fairly well 

defined except for high water. Daily discharge ascertained by applying mean 

daily gage height to rating table. Records good for low and medium stages; 

high-water records fair. 

Discharge measurements of Sespe Creek at Sespe, Calif, for 1911-1913. 



Date. 


Made by— 


hefiS. 


Dis- 

charga 


Date. 


Made by- 


Gage 
height 


Dis- 
charge. 


1911. 
Oct. 26 


Lasley Lee 


Feet. 
4.20 

4.43 
4.34 
4.25 
4.15 
6.33 
5.53 
4.92 
4.97 
4.70 
4.16 


Sec.-ft. 
7.0 

19 
12 
9.4 
5.0 
1,510 
246 
83 
94 
52 
9.2 
r>ry. 


1912. 
Dec. 4 

1913. 

Jan. 7 

29 

Feb. 12 

27 
Mar. 7 
Apr, 2 

29 
May 21 
June 5 

25 
Aug. 13 


F. C. Ebert 


Feet. 
3.77 

3.74 
4.38 
4.80 

5.68 
5.17 
4.28 
.3.98 
3.58 
3.53 
3.32 


Sec.-ft. 
1.2 


1912. 


FC. Ebert 


F. C. Ebert 


1.3 


Jan. 8 


do 

do 

do 

do 

do 


20 


26 
Feb. 3 

28 
Mar. 12 

15 


.....do 

do 

do 

do 

do 


62 

761 
417 
89 


24 
Apr. 24 
May 13 


do 

do 

do 


do 

do 

do 


49 
14 
10 


June 26 


do 


do 


4.1 


Aug. 7 


... do . - - 


do . . 


Dry. 















Note— Dec. 4, 1912, point of zero flow determined to be at gage height about 3.3 feet. 



SAl<rTA CLARA RIVER BASIN, 491 

Daily discharge, in second-feet, ofSespe Creek at Sespe, Calif., for 1911-1913. 



Day. 


Aug. 


Sept. 


Day. 


Aug. 


Sept. 


Day. 


Aug. 


Sept. 


1911. 
1 




7.0 
7.0 
7.0 
7.9 
7.0 

7.0 
7.9 
7.9 
7.9 
7.9 


2 


1911 
1 






* i 
7.9 
9.2 
9.2 
9.2- 

10 

10 ' 
10 i 
10 ; 
7.0 : 
7.0 


191] 
21 


. 




7 


2. 




2 






22 




7.0 


3 




3 






23 




9 2 


4. 




4 






24 




11 


.5 




5 






25 




11 


f) 




6 






26 




11 


7 




7 







27 




11 


8 




8 






28 ' 


11 


9 




9 . ... 






29 


11 


10. 











30 ■ 


12 












31 


6.4 










Day. 


Oct. 


Nov, 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1911-12. 
1 . . 


16 
14 
14 
13 
13 

13 
11 
11 
11 
11 

10 
10 
10 
17 
11 

13 

13 

10 
9.2 
7.9 

7.0 
7.0 
7.0 
7.0 
6.4 

7.0 
9.2 

10 

11 

11 

10 


10 
10 
10 
10 
10 

10 
9.2 
10 • 
10 
10 

10 
12 
12 
14 
17 

'A 

14 
16 
14 

14 
13 
13 
13 
11 

13 
13 
11 

13 

13 


13 

14 
13 

14 
14 

17 
20 
23 
20 
20 

20 
20 
19 
19 
19 

20 
19 

17: 

17 

19 

19 
20 
20 
19 
19 

19 
20 
20 
20 
20 
19 


21 
21 
21 
21 

19 

19 
19 
19 
19 
19 

19 
21 

19 
19 

17 
17 
16 
14.2 

14.2 

14.2 
14.2 
14.2 

14.2 
16 

16 

16 

14.2 

12.4 

12.4 

11.3 


11.3 

10.4 
10.4 
10.4 
10.4 

10.4 
10.4 
10.4 
10.4 
10.4 

10.4 
10.4 
10.4 
10.4 
10.4 

10.4 
9.2 
9.2 
9.2 
9.2 

9.2 
9.2 
9.2 
9.2 i 
9-2; 

7.9 ^ 
7.9^ 
"7.0 
7.0 , 


7.0 
7.9 
9.2 
140 

1,980 

373 
2.280 
1,980 

390 
1,180 

200 
770 
1,430 
305 
240 

240 
200 
165 
149 
129 

118 
102 
98 

84 
89 

102 
118 
108 
108 

98 

89 


89 
84 
80 
72 
68 

'65 

58 

89 

770 

1,180 

1,700 
490 
305 
240 
200 

200 
220 
182 
165 

182 

140 
118 
108 
80 
80 

72 
! 72 
1 72 

72 
72 


65 
65 
65 
58 
58 

65 
80 
80 
72 
65 

50 
50 
50 
44 
44 

44 
44 
40 
40 
37 

37 
35 
31 
31 
37 

37 ; 

31 

31 

27 
25 
21 


19 
19 
17 
17 
14.2 

14.2 
14.2 
12.4 
11.3 
11.3 

9.2 
7.0 
7.9 
7.0 
7.0 

5.6 
5.6 
4.7 
4.7 
4.1 

4.1 
3.2 
3.2 
3.2 

3.2 

3.2 
2.7 
2.7 
2.7 
2.3 


1 8 


2 


2 3 


3 


2 3 


4 


1 8 


5 


1.8 


6 


1 8 


7 


1.8 


8 


i 8 


9 


i.5 


10 


1.3 


11 




12 




13 




14 




15. 




16 




17 




18 




19 




20 




21 




22 




23 




24 




25 




26 .. 




27 




28. . 




29 




30 




31 




-. 







Note.— Daily discharge determined from fairly well defined rating curve applicable as follows: Aug, 31 
to Dee. 31, and Jan. 1 to Sept. 30. Discharge interpolated Nov. 1-* and 12-13. No flow from July 11 to 
Sept. 30. 



492 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, ofSespe Creel atSespe, Calif., for 1911-1913 — Continued. 



I>ay. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


1912-13. 
1.. 




. 


1.5 

2 

2 

2 

1.5 

2 
2 
2 
2 
2 

2 
2 
2 
2 

4.5 

3.5 

3 

2 

3 

3 

3 
3 
3 
3 
3 

3 
3 
2 
3 
3 
3 


2.0 
1.5 
.7 
.6 
1.5 

1.5 
1 

.9 
1.5 
3 

4.5 

5 

3.5 

7.5 
620 

1,700 
200 
200 

98 

65 

38 
34 
31 
29 
23 

21 
21 
20 
20 
20 
20 


20 
20 
20 
20 
20 

21 
21 
1,700 
200 
122 

80 
65 
53 
48 
40 

38 
36 
34 
33 
33 

50 

29 

98 

16,300 

8,200 

1,220 

2,480 
430 


380 
335 
335 
380 
430 

390 
405 
380 
335 
290 

290 
268 
213 
187 
146 

140 
140 
170 
140 
140 

140 
140 
115 
115. 
115 

104 
104 
94 
94 

86 
86 


81 
81 
81 
81 
81 

81 
78 
78 
71 
71 

67 
67 
64 
71 
71 

71 

67 

67 
64 
64 

50 
50 
46 
46 
50 

52 
50 
46 
50 
46 


44 
40 
40 
40 
40 

40 
52 
40 
40 
30 

30 
23 
21 
21 
18 

16 
16 
14 
14 
14 

12 

11 
9.5 
9.5 
9.5 

9.5 
9.5 
9.5 
9.5 
9.5 
9.5 


7.5 
7.5 
9.5 
9.5 
9.5 

30 

21 

14 
9.5 
9.5 

9.5 
9.5 
9.5 
6 
6 . 

4 

4 

4 

2.5 

2.5 

2.5 
2.5 
2.5 
2.5 
1.5 

2.5 
14 
6 
6 
6 


7 


2 




. 




3 








4 








5 








6 








7 








8 








9 








10 








11 




3.0 




12 






13 








14 








15 








16 








17 








18 




.3 
.2 
.9 

3.0 
- 3.5 
1.5 
.9 
1.5 

1.5 
1.5 

1.5 

2 

2 




19 






20 






21 






22.. . . 








23 






24 






25 






26 






27 . ... 






28 






29 






30 








31 





















Note, — Daily discharge determined from well defined rating curves applicable as follows: Nov. 11, 1912, 
to Feb. 24, 1913; Feb. 25 to July 1, 1913. No flow July 2 to Sept. 30. Discharge Feb. 24 and 25 esti- 
mated from extension of rating curve; records only approximate. 



Monthly discharge ofSespe Creeh at Sespe, Cal 


if , for 1911-1913. 






Discharge in second-feet. 


Run -off 

(total 

in 

acre- 
feet). 


Month. 


Discharge in second-feet. 


Run-off 
(total 


Month. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


Maxi- 
mum. 


Mini- 
mum. 


Mean. 


in 
acre- 
feet). 


1911. 
September 


12 


7.0 


8.84 


526 


1912-13. 

October 

November 

December 

January 

February 

March 


0.0 
3.5 
4.5 
1, 700 
16,300 
430 
81 
52 
30 
.7 
.0 
.0 


0.0 
.0 
1.5 
.6 
20 
86 
46 
9.5 
1,5 
.0 
.0 
.0 


0.00 
.78 
2.52 
103 
1,120 
216 
64.8 
22.6 
7.70 
.02 
.00 
.00 




46 

155 

6,330 


1911-12. 
October 


17 
17 
23 
21 

11.3 
2,280 
1,700 
80 
19 
2.3 
.0 
.0 


6.4 
9.2 
13 

11.3 
7.0 
7.0 
58 
21 
2.3 
.0 
.0 
.0 


10.7 

12.2 

18.5 

17.0 

9.65 

428 

244 

47.1 

8.13 

.59 

.00 

.00 


658 
726 
1,140 
1,040 
555 
26,300 
14,500 
2,900 
484 
36.3 
.0 
.0 


November 

December 


62,200 
13,300 






3,860 


February 

March 


Mav . . . 


1 390 




458 


April 


July 


1 


May 


August 

September 

The year... 





June .... 





July 






16,300 


.0 


121 


87,700 


September 


The year 


2,280 





66.7 


48,300 





SANTA PAULA CREEK NEAR SANTA PAULA, CALIF. 

Location. — At east boundary of Ojai grant, in Santa Barbara National Forest, just 
below mouth of Sisar Creek, half a mile above Onlauf Canyon, 6 miles above 
junction with Santa Clara River, and 5| miles northwest of Santa Paula, Ventura 
County. 

Drainage area. — 33.4 square miles (measured on topographic maps). 



U. S. GEOLOGICAL SURVEY 



WATER-SUPPLY PAPER 447 PLATE XVII 









VIEWS AFTER FLOOD OF 1914. 

A, Arroyo Seco uear Los Augeles, Calif. ; B, Ventura River near Ventura, Calif. ; C. Santa Paula Creek 
near Santa Paula, Calif. 



U. S. GEOLOGICAL SURVEY 



WATER-SUPPLY PAPER 447 PLATE XVIII 




^^^^ 



'^•^^^^^'SMik. .^ '■ 



A, SAN DIEGO RIVER AT MISSION DAM, NEAR SANTEE, CALIF., AFTER FLOOD 

OF 1916. 




B. GAGING STATION ON COTTONWOOD CREEK NEAR DULZURA, CALIF. 




C DULZURA CONDUIT AT BARRETT DAM SITE, CALIF. 



SANTA CLAEA EIVEB BASIN. 



493 



Elevation. — About 950 feet above sea level. 

Records available. — March 24, 1912, to September 30, 1913. 

Gage. — Vertical staff fastened to tree on left bank, about 600 feet below mouth of 

Sisar Creek. 
Discharge measurements. — Made from highway bridge 1 mile below gage or by 

wading. (See PI. XVII, C.) 
Channel and control. — Boulders and gravel ; shifts at high stages. 
Diversions. — No information. 
Regulation. — No information. 
Accuracy. — Stage-discharge relation not permanent. Rating curves fairly well 

defined except for high water. Daily discharge ascertained by applying mean 

daily gage height to rating table. Records good for low and medium stages; 

high-water records fair. 



Discharge measurements of 


Santa Paula Creek near 


Santa Paula, Calif. Jor 1911-1913, 


Date. 


Made by — 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by — 


Gage 
height. 


Dis- 
charge. 


1911. 
Oct. 27 


F. C. Ebert 


Fee*. 
2.40 
2.40 

2.43 
2.41 
3.07 
2.70 

2.88 
2.62 
2.39 
2.27 
2.27 


Sec.-ft. 
4.9 

4.8 

4.9 
4.7 

39 

17 

26 

13 
6.3 
3.1 
2.9 


1912. 
Dec. '3 

1913. 
Jan. 31 
Mar. 1 
7 
Apr. 30 
May 22 
June 5 
24 
Au?. 13 


F. C. Ebert 


Feet. 
2.33 

2.42 
3.92 
3.80 
3.26 
3.26 
3.07 
3.11 
2.97 


Sec. ft. 
2 9 


27 


Lasley Lee 


F.C. Ebert 

do 

do 

do 

do 

do 

do 

do 




1912. 
Jan 6 


F. C. Ebert .... 


5.2 

83 


Feb. 2 
Mar. 14 

24 
Aj)r. 24 
May 14 
June 25 
Aug. 5 

20 


do 

do 

do.. 

do 

do 

do 

do 

H. D. McGlashan 


66 

13 
7.5 
7.4 
5.3 
2.6 



Daily discharge, in second-feet, of Santa Paula Creek near Santa Paula, Calif, for 1912-13. 



11., 

12., 
13., 
14., 
15., 

16., 

17., 
18., 
19., 
20.. 

21., 
22.. 
23., 
24., 
25., 



Mar. Apr. May. June. July. Aug. Sept. 



17 

80 
158 

104 
34 

22 
22 
17 

34 
50 
80 
34 
34 

34 
130 

34 
180 

28 



12 
12 
12 
12 
12 

12 

8.5 
8.5 
8.5 
8.5 

8.5 
8.5 
7.0 
8.5 
8.5 

8.5 
8.5 
8.5 
8.5 
8.5 

8.5 
8.5 
8.5 
5.5 
7.0 

5.5 
5.5 
5.5 
5.5 
5.5 



5.5 
5.5 
5.5 
5.5 
5.5 

5.5 
5.5 
3.5 
5.5 
5.5 

5.5 

5.5 
5.5 
5.5 
5.5 

5.5 
5.5 
5.5 
5.5 
5.5 

5.5 
5.5 
5.5 
6.5 
5.5 

5.5 
5.5 
5.5 

4.5 
4.5 
4.5 



4.5 
4.5 
4.5 
4.5 
3..2 

3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 
3.5 
3.5 
3.2 

3.2 
3.2 
3.2 
3.2 
3.2 

3.2 
3.2 
3.2 
3.2 
3.2 
3.2 



3.2 
3.2 
3.2 
3.2 
3.2 

3.2 
3.2 
3.2 
3.2 

3.2 

3.2 
3.2 
3.2 
3.2 
3.2 

3.2 
3.2 
3.2 
3.2 
3.2 

3.2 

3.2 
3.2 
3.2 
3.2 

3.2 
3.2 
3.2 
3.2 
3.2 



Note.— Daily discharge determined from a rating curve well defined between 10 and 80 second-feet. 



494 SUEFACE WATER OF PACIFIC SDOPB, SOUTHERN CALIFORl^IA. 



Daily discharge, in second-feet, of Santa Paula Creek ne-ar Santa Paula, Calif., for 
1912-13— GontimiGd. 



Oct. Nov. Dec. Jan. Feb. Mar. Apr. May. June. July. Aug. Sept. 



1912-13. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



2.5 
2.5 
2.5 
2.5 

2.5 

2.5 
2.5 
2.5 
2.5 



2.5 
2.5 

2.5 
2.5 



2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 



2.5 
1.5 
1.5 



2.5 
2.5 
2.5 
2.5 

2.5 

2.5 
2.5 
2.5 
2.5 

2.5 

2.5 
2.5 
2.5 
2.5 

2.5 



2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
3 
2.5 



2.5 
2.5 
2.5 
2.5 
2.5 



2.5 
2.5 
2.5 
2.5 
2.5 



2.5 

3 

3 



2.5 
2.5 

2.5 

2.5 
2.5 



2.5 
2,5 
2.5 



2.5 
2.5 

2.5 



2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
5 

5 



22 
22 
17 

17 
12 

8 

6.5 

5 

5 
5 

5 
5 



5.5 
5.5 
6.5 



6.5 
12 
12 



168 
168 
152 



7.5 
7.5 
7.5 
7.5 

7.5 

7.5 
7.5 

7.5 
7.5 

7.5 



7.5 
7.5 
7.5 
7.5 
7.5 

7.5 

7.5 
7.5 

7 
7 



6.5 
6.5 



5.5 
5.5 
5.5 
5.5 
5.5 

5.5 

5 

5 

5 

5 



4.5 
4.5 
4.5 
4.5 
4.5 

4.5 
4.5 
4 



3.5 
3.5 
3.5 
3.5 
3.5 

3.5 
3.5 

3.5 



3 
3 
3 

3 

3 

2.5 
2.5 
2.5 

2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 
2.5 



Note. — Daily discharge determined from rating curves applicable as follow: Oct. 1, 1912, to Feb. 23, 
1913, fairly well defined below SO second-feet; Feb. 26 to May 17, fairly well defined. Discharge Feb. 24 
and 25, estimated. 

Monthly discharge of Santa Paula River near Santa Paula, Calif., for 1912-13. 
[Drainage area, 33.4 square miles.] 





Discharge in second-feet. 


Rim-o3. 


Month. 


Maximum. 


Minimum. 


Mean. 


Per 
square 
mile. 


Depth in 

inches on 

drainage 

area. 


Total in 
acre-feet. 


March 24r-31 


34 
158 

28 

12 
5.5 
4.5 
3.2 


17 

17 

12 
5.5 
4.5 
3.2 
3 2 


23.8 
42.8 
16.1 
8.50 
5.40 
3.50 
3.20 


0.713 
1.28 
.482 
.254 
.162 
.105 
.096 


0.21 
1.43 
.56 
.28 
.19 
.12 
.11 


378 


April.. . . 


2,550 


May 


990 




506 


July . . 


332 


August 


215 


September 


190 






The period 












5,180 
















1912-13. 
October... . 


2.5 
3.0 
4.5 
187 
1,560 

80 

23 

13 
7.5 
5.0 
3.0 
2.0 


1.5 
2.0 
2.5 
2.5 
5.5 

10 

16 
7.5 
5.0 
3.0 
2.5 
2.0 


2. 44 
2.52 
2.53 
13.4 
98.1 
34.2 
17.4 
9.29 
6.37 
4.13 
2.60 
2.00 


.073 
.075 
.076 
.401 
2.94 
1.02 
.521 
.278 
.191 
.124 
.078 
.060 


.08 
.08 
.09 
.46 
3.06 
1.18 
.58 
.32 
.21 
.14 
.09 
.07 


150 


November 

December 


150 
156 


January 


824 


February . . 


5,450 


March 


2,100 


April.... 


1,040 


May . . 


671 




379 


July 


254 


August 


160 


September 


119 






The year. 


1,560 


1.5 


16.7 


.470 


6.36 


11,400 







SANTA CLARA RIVBE BASIN. 



495 



MISCELLANEOUS MEASUREMENTS. 

Measurements of stream flow in the Santa Clara River basin at 
points other than those at which gaging stations have been main- 
tained are recorded in the following table: 

Miscellaneous /neasuremenis in Santa Clara River drainage basin, 1895-1917. 



Tributary to— 



Locality. 



Aug. 9,1898 
Aug. 19,1899 
Oct. 8,1900 
Apr. 30,1903 
June 16,1903 
Sept. 16, 1903 
Oct. 19,1905 
June 18,1898 
Aug. 11,1898 
Aug. 19,1899 
Apr. 30,1903 
Jiine 17,1903 
Sept. 16, 1903 
Oct. 19,1905 
Mar. 15,1899 
Aug. 18,1899 
May 3, 1903 
June 22,1903 
July 16,1903 
Aug. 13,1903 
Sept. 18,1903 
Oct. 21,1905 
Aug. 14,1903 

Sept. 18,1903 
Oct. 21,1905 
Jime 4, 1913 

Aug. 13,1913 
Oct. 21,1913 
Jan. 2,1914 
Sept. 18,1914 
Oct. 11,1912 

Nov. 6, 1912 
Dec. 4,1912 
Jan. 7, 1913 
June 25,1913 
Apr. 30,1903 



Santa Clara River. . 

do 

do 

do 

do 

do 

do 



Pacific Ocean. 

do 

do 

do 

do 



-do.. 
..do., 
-do.. 
..do.. 
..do.. 



..do.. 
..do.. 
..do.. 
..do.. 
..do.. 
..do.. 
..do.. 
..do.. 
..do.. 
..do.. 
..do.. 



....do 

....do..... 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 



Newhall ranch. 

....do 

....do 

....do.. 

....do 

....do 



..ao.. 



.do., 
.do., 
.do.. 



.do., 
-do.. 



....do 

....do 

....do 

....do 

....do 



-do., 
.do.. 
..do., 
.do., 
.do.. 



June 

Sept. 
Oct. 
Aug. 
Aug. 
Oct. 
Jan. 
Apr. 

Mar. 
Jan. 
Jan. 
Aug. 
Mar. 
Mar. 
Mar. 
Aug. 
Oct. 
May 



10, 
16, 1903 
19, 1905 
11,1 — 
13,1913 
21,1913 
2,1914 
8,1914 

10, 18 

21,18 

31,18 

11,18._ 

14,1899 

16, 1899 



19,„.. 
8, 1900 
1,1903 

Do 

June 17, 1903 
Sept. 17,1903 
June 17, 1903 
Oct. 20, 1905 

Do 

Sept. 3,1911 

Oct. 21,1913 

Jan. 3,1914 
Sept. 18, 1914 
Dec. 25.1916 



do 

do 

do 

do 

San Franeisquito . 
Creek. 

do 

do 

do 

do 

do 

.....do 

do 

Castaic Creek 



Piru Creek . 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

....do 

do 

do..... 

do 

do 

do 

....do 

do 

do 



do 

do 

do....... 

do 

Santa Clara. 
River. 

do 

do 

do..„... 

do...... 

do 

do 

do 

do 



.do. 
.do. 
.do. 
.do. 
.do. 
.do. 
.do. 
.do. 
.do. 



.do.. 

do. 

do. 
.do. 
.do- 
.do.. 
.do.. 



..do.. 



..do 

-.do 

..do 



..do 

..do 

-do 



1 mile east of Camulor.. 

do 

do 



-do.. 
..do., 
-do.. 
..do.. 



In cienaga, 1 mile east of Fillmore . 

Near Santa Paula 

...-do 

do. 



..do.. 
..do-. 



Below head of Santa Clara Water 
& Irrigation Co. 's canal. 
do. 



..do.. 



Above mouth of San Fran(Hsquito 

Creek at Castac. 
do 

!"!do!!l!;!!!!!!!!!!!!!!!!!!!!!!! 

Discontinued U. S. G. S. gagiag- 
station at Fillmore, Calif, 
do. 



-do., 
.do., 
.do.- 



Road crossing, Newhall ranch.. 



....do 

....do 

....do 

Near mouth 

....do 

....do.. 

....do 

Southern Pacific Co.'s bridge near 
mouth. 

Robertson mill 

Smith's 

...do 

French house 

Narrov/s near Dutton's 

Road crossing, Piru 

do 

Head of Piiu pipe line 

Ditches from lower creek 

Dunton ranch 

Southern Pacific Co.'s bridge 

...do 

do 

1 mile above Esperanza 

...do 

1 mile above Piru 

900 feet above Southern Pacific 
Co.'s bridge, Piru. 

Abandoned U. S. C S. gaging sta- 
tion, Piru. 

!!do"! 



N.W. i sec. 13, T. 6 N., R. 18 W., 
opposite U. S. G. S. benchmark 
"2060", about 4 miles below 
mouth of Canada de los Alamos. 



496 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Miscellaneous measurements in 


Santa Clara River drainage basin, 1895-1 9 17~Cojitm\ied. 


Date. 


Stream. 


Tributary to— 


Locality. 


Dis- 
charge. 


Dec. 15,1896 


Gorman Creek 

Sespe Creek 


Piru Creek 


Below Gorman Station 


Secf.^ 


Aug. 11,1898 


Santa Clara River. . . 




2 5 


Mar. 15,1899 


....fdo 




Head of "Water Co.'s canal 


8 3 


Aug. 18,1899 


do 

do 

do 

do 

do 


do 


do 


1 9 


May 2, 1903 
Sept. 17, 1903 


do 

do 


Southern Pacific Co.'s bridge 

Below canal intake 


89 , 
1 


Oct. 20,1905 


do 

do 


do 


4.8 


Oct. 21,1913 




b 


Jan. 4, 1914 


do 


..do 


do 


29 


Jan. 5,1914 


do 


do 


do 


28 


Apr. 12,1914 
Mav 26,1914 


do 

do 

do 


do 

do 

do 

do 


1,000 feet above Southern Pacific 
Co.'s bridge. :■ 

Near Sespe 


140 

81 


Do 


Sespe 


57 


June 11,1916 


do 




14 


Apr. 3, 1916 


do 


do 


Railroad bridge Sespe 


127 


May 2, 1910 
June 11,1916 


do 

Hot Springs Creek.. 
Alder Creek 


do 

Sespe Creek 


do ' 

Mouth 


41 
2 5 


Do 


do 




1.2 


Mar. 2, 1916 


West Fork of Sespe. 
Creek. 
....do 


....do 


Mouth. . 


13 


Mar. 13,1916 


....do ^ 


....do 


11 


Mar. 28, 1916 


.. .do 


. do . 


.do 


5 9 


Apr. 20, 1916 


....do 


....do 


....do 


5.5 


Apr. 24, 1916 
May. 24,1916 


....do 


.. .do 


.do 


5.4 


....do 


....do 


....do 


3.4 


June 20,1916 
Sept. 14,1916 
Jan. 4,1917 
Feb. 5,1917 
Mar. 3, 1916 
Mar. 13,1916 
Apr. 1,1916 
Apr. 21, 1916 
May 30,1916 
Sept. 14,1916 
Mar. 7, 1916 


....do 


.. .do.. . . 


.. .do.. 


2.5 


do 


. do . 


do 


1 5 


....do 


....do 


...do 


10 


do 


. do 


do 


8.9 


Tar Creek 


....do 


....do 


14 


do 


.. do.. 


do . 


9.8 


....do 


....do 


....do 


5.3 


...do 


do..' ... 


. do 


2 


....do 


....do 


...do 


.5 


....do 

Coldwater Creek 

....do 


....do 

do . 


....do 

do 


2 


Mar. 14, 1916 
Jan. 4,1917 
Feb. 6,1917 
Mar. 7,1916 
Mar. 14, 1916 


....do 


...do 


1.6 


do 


.. .do.. 


do.. 


2 


....do 


....do 


....do 


.6 


Pine Creek 


.. .do 


.do 


6.1 


do . ... 


do . 


do . 


5.4 


Mar. 31,1916 


do 


....do 


....do 


4.2 


Feb. 6,1917 
Mar. 7,1916 
Mar. 14, 1916 


do 


do . 


.do 


1.7 


Little Sespe Creek... 
do 


do 


do 


4 


...do 


....do 


3.3 


Mar. 23,1916 
Sept. 14,1916 
Jan. 4,1917 
Feb. 6,1917 
Aug. 18,1899 
May 3,1903 
Do---.-.. 


do . . 


do . 


do 


2,1 


do 


....do 


....do 


i>0 


do 


. do 


...do 


2.8 


do 


....do 


One-fourth mile above mouth 

Above Neeper schoolhouse 

5 miles above Santa Paula 

Santa Paula 


1.3 


Santa Paula Creek. . 
. .do 


Santa Clara River. . . 
....do 


.85 
28 


do 


....do 


19 


Oct. 21,1905 


do ... 


do . . . 


3 miles above Santa Paula 

Abandoned U. S. G. S. gaging 
station, Santa Paula, 
do 


4.9 


Oct. 21,1913 


....do 

do 


....do 


1.5 


Jan 5 1914 


do 


7.3 


Apr. 8,1914 
May. 30,1914 
Oct. 27,1911 

Jan. 6, 1912 
Feb. 2, 1912 
Mar. 24,1912 
May 14,1912 
Aug. 5,1912 
Aug. 20,1912 
Dec. 3,1912 
Jan. 31,1913 


do 


...do 


.. do 


35 


do . . 


do. 


do 


17 


Sisar Creek 


Santa Paula Creek . . 
do ... 


Near mouth, just above U. S. G. S. 
gaging station on Santa Paula 
Creek, SW.i NW. J sec. 16, T. 4 
N., R. 21 W. 
..do. 


1 


do 


1.2 


do 


do 


do 


1 


do 


do 


....do 


6.1 


do 


do 


.do 


2.9 


do 


do 


....do 


a. 3 


do . . 


do . 


...do 


.5 


do 


do 


.do 


05 


do 


do 


....do 


.9 


Mar 1,1913 


do 


do 


..do 


16 


Mar. 7,1913 


do 


. .do 


....do 


9.1 


Apr. 30,1913 
May 22,1913 
Tune 5 1913 


do 


do 


...do 


2.4 


do 


do 


.do 


1.4 


do 


do 


do 


1.6 


June 24,1913 
Aug. 13,1913 
Oct 21 1913 


do . ... 


do 


....do 


.9 


do 


do 


do 


.4 


do 


do 


Near Santa Paula 


09.1 


Jan. 5,1914 
Apr. 8,1914 
May. 30,1914 


do 


do 


...do 


8 


do 


do.. 


...do 


10 


do 


do 


do 


4.2 











b Stream dry. 



SANTA CLARA RIVER BASIF. 



497 



Miscellaneous measurements of diversions in Santa Clara River drainage basin for 

1899-1918. 



Date. 


Name. 


Diverts from— 


Locality. 


Dis- 
charge. 


Aug. 19,1899 
Oct, 8 1900 


Camulos ditch 

. do ..... . . 


Santa Clara Pviver. . . 
. do 


1,000 feet belov/ intake. 1 mile above 

Camulos. 
Head of wooden flume . . 


Sec.-ft. ■ 
17.6 

11.4 


Tune 17,1903 


....do 


do 


Head 


7.6 


Sept. 16, 1903 
Oct 19 1905 


. do 


..do 


do 


11.6 


do 


do 


1,000 feet below head 


7.6 


Aug. 18' 1899 
June 22 1903 




...do 




16.0 


-do.. . . 


. do 


1 mile above Santa Paula .... 


7.8 


July 16.1903 
Aug. 13' 1903 


do 


....do 


do 


8.4 


.. do 


. do 


do 


8.6 


Sept. 18, 1903 
Oct. 21,1905 


do 


do .. . . 


. do 


8.6 


. do 


. do 


do 


7.2 


May 13,1912 
June 7, 1913 


Fillmore Irrigation 
Co.'s ditch. 

.do 


Sespe Creek . 


One-fourth mile below intake, 

which is 4miles above U. S. G. S. 

gaging station on Sespe Creek, 

near Sespe. 
About 500 feet below intake, in sec. 

1, T. 4N.,R. 20 W. 

One- fourth mile below intake 

At headgate near Sespe 


3.5 


. do . .. . . 


17.0 


Feb. 6, 1917 


do 


. . .do 


1.5 


May 26,1914 

Sept. 14, 1916 
May 2,1917 
Aug. 2,1918 
Aug. 18,1899 
June 22,1903 
July 16,1903 
Aug. 13,1903 
Sept. 18, 1903 
Oct 21 1905 


Fillmore Land & 
Water Co.'s canal. 

do 

do 


. do 


17.0 


do 

. do 


do 


12.0 


. do 


14 


do 


. do 


1,000 feet below intake 


20 


Grees ditch 


Santa Clara Kiver. 




8.6 


do 


do 


1 mile above Santa Paula 


11,0 


. do 


do 


do 


5.8 


. do 


. do 


. do 


11.1 


do 


do 


do 


7.4 


. do 


. do 


. do 


9.2 


June 16,1903 
Sept. 16, 1903 
June 17,1903 


Newha 11 ditch 

, do 


do 

... .do.. 


Southern Pacific Co.'s bridge 

do 


1.7 

1,8 


Pirn Ivand & Wa- 
ter Co.'s upper di- 
version. 
. do 


Piru Creek 


Near Esperanza 


1.8 


Sept. 17, 1903 
Oct. 20,1905 


.do 


. do 


1.2 


.. do 


do 


do 


1.4 


June 17,1903 

Sept. 17, 1903 
Aug. 18,1899 
.Tune 22,1903 
July 16,1903 
Aug. 13,1903 
Sept. 18, 1903 
Jan. 25,1912 


Piru Land & 
Water Co.'s lower 
diversion, 
do 


. do 


Southern Pacific Co.'s bridge 

.. .do 


3.7 


. do 


1 


Richardson ditch — 
do 

do 


Santa Clara River. .. 




5.8 


do 

. do ... . 




4.2 


... do... . . 


2 3 


. do 


. .do 


do 


1.2 


. do 


. do 


. . do 


1.2 




Piru Creek 


Above Southern Pacific Co.'s 

bridge at Piru. 
.. do... 


5.5 


Nov 7 1912 


do.. 


do. 


4.6 


Dec 4' 1912 


do 


do 


do 


3.1 


May 23,1913 
June 26,1913 
July 15,1903 

July 16,1903 
Auo- 14 1903 


. do 


. do... 


...do 


6.6 


do 


do . 


.do ... 


6.5 


Santa Clara Water 
& Irrigation Co.'s 
canal. 

do 


Santa Clara River. . . 
.. .do 


Head 


30.0 


do 


33.0 


do. 


do 


.do 


31.6 


Sepi;. 18, 1903 
1905 


. do 


. do 


.. .do 


26.7 


. do 


do ... . 


Head, measured over weir 

Head 


16.7 


May 3, 1903 

June 22,1903 
Sept. 18, 1903 
Sept. 17,1903 

Oct. 20,1905 


Santa Paula Water 
Co.'s ditch, 
.do .. 


Santa Paula Creek . . 
, do 


5.6 


. do 


10.1 


do 

Sespe Land & Wa- 
ter Co'.s canal. 
do 


do 


. ...do 


2.7 


Sespe Creek . 


One- half mile below intake 

.....do 


4.6 


do 


6.6 











142131 ° — 21— w SP 447- 



-32 



SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 
VENTURA MVER BASIN. 
GENERAL FEATURES. 



Ventura Eiver drains a small area lying almost wholly in Ventura 
County. The river rises in the eastern part of Santa Barbara County 
and flows in general southeastward to Matilija, where it turns and 
takes a course more nearly south to its entrance to the Pacific at 
Ventura. 

GAG^IHG-STATION RECORDS. 
VEWTTJRA RIVER KEAR ]SrORBH:OFF, CALIF. 

Location.— In N. ^ SW. i sec. 28, T. 5 N., R. 23 W., just below junction of MatUija 
and North Fork of Matilija creeks and about 4 miles northwest of Nordhoff, Ven- 
tura Counly. 

Drainage area. — 19.9 square miles (measured on topographic maps.) 

Elevation. — About 900 feet above sea level. 

Records AVAILABLE. — October 23, 1911, to October 31, 1914, 

Gage. — Original vertical staff in three sections on right bank about 300 feet below 
junction of creeks; gage destroyed by flood of January, 1914. A new vertical 
staff, at an independent datum, installed March 17, 1914, about 50 feet betow 
original site. 

Discharge measurements. — Made from cable about 200 feet below gage or by 
wading; equipment washed out February 20, 1914. 

Channel and control. — Gravel and boulders; shifts during high water. 

Extremes of discharge. — 1911-1914: Maximum stage probably about 15 feet Feb- 
ruary 20 or 21, 1914 (discharge unknown); minimum stage recorded, 1.90 feet 
October 1 to 3 and 13 to 18, 1913 (discharge, 2.5 second-feet). 

Diversions. — Sheldon flume diverts water from North Fork of Matilija Creek above 
the station during the irrigation season. See miscellaneous measurements for 
discharge of flume. 

Regulation. — No information. 

Accuracy. — Stage-discharge relation not permanent. Rating curves well defined 
except for flood stages. Daily discharge ascertained by applying mean daily 
gage height to rating table. Records good. Flood discharge of 1914 not computed. 

Discharge measurements of Ventura River near Nordhoff, Calif., for 1911-1914. 



Made by — 




Oct. 
Dec. 



height. 


Dis- 
charge. 


Date. 


Feet. 


See-ft. 


1913. 


2.18 


11 


Jan. 30 


2.18 


11 


Feb. 28 
Mar. 8 


2.27 


14 


Apr. 28 
May 22 


2.20 


11 


June 25 


2.16 


11 


Aug. 14 


3.32 


71 


Oct. 22 


2.87 


35 




2.90 


32 


1914. 


2.50 


20 


Jan. 16 


2.19 


10 


Feb. 13 


1.90 


5.3 


Mar. 17 


1.90 


4.0 


Apr. 9 
May 30 


L90 


4.1 


L93 


5.0 


Sept. 19 



Made by— 



F. C. Ebert. 
-...do.... 

do.... 

do 

do.... 

...do.... 
...do.... 
...do.... 



F. C. Ebert 

....do... 

....do... 

....do... 

....do... 

....do... 



Gage 
height. 



Feet. 
2.28 

4.54 

a 86 

2.83 
2.62 
2.40 
2.07 
1.94 



2.67 
4.93 
2.67 
2.28 
1.67 
1.17 



Dis- 
charge. 



Sec.-ft. 
11 
183 
96 
20 
13 
7.8 
4.0 
2.8 



14 
151 
178 
102 



Note.— Measurements beginning Mar. 17, 1914. refer to new gage at new site and datum. 



VENTURA RIVER BASII?". 



499 



Daily discharge, in second-feet, of Ventura River near Nordhoff, Calif., for 1911-1914. 



21.. 

22-. 
23-. 
2i.. 
25.. 



30-. 
31.. 



Apr. 



14 
13 

12 
11 

10 
10 
10 

10 
10 
10 
10 
10 

10 
9.2 
9.2 
9.2 

8.5 



July. 



8.5 
9.2 
9.2 

8.5 

8.0 
7.6 
7.& 
7.0 
7.0 



6.4 
6.0 

6.0 
3.0 
5.7 
5.7 
5.7 

5.7 
5.7 
5.7 
5.7 
5.2 

5.2 
5.2 
5.2 
5.2 
5.2 
5.2 



4.8 
4.8 
4.8 
4.5 



4.5 
4.5 
4.5 
4.5 
4.5 

4.5 
4.5 
4.3 
4.3 
4.0 

4.0 
4.0 
4.0 
4.0 
4.0 
4.0 



Sept. 



Note.— Daily discharge determined from fairly well defined rating curves applicable as follows: Oct. 
to Dec. 3, 1911, and Jan. 1 to Sept. 30, 1912. 



1912-13. 

1 

2 

4 

4 

5 

6 

9 

10 

11 

12 

13 

14 

15 

16 .. 

17 

18 

19 

20 

21 

22.... 

23 

24 

25 

26 

27 

28 

29 

30 

31 



3.5 


4.5 


4.5 


5.5 


12 


170 


39 


20 


12 


8.0 


5.5 


3.5 


4.5 


5 


5.5 


12 


155 


33 


20 


12 


7.5 


6.5 


4.5 


4.5 


5 


5.5 


12 


128 


28 


20 


11 


7.5 


5.5 


4.5 


4.5 


5 


5.5 


12 


109 


28 


20 


11 


7 


5.5 


4.5 


4.5 


5 


5.5 


12 


98 


28 


20 


11 


7 


5.5 


4.5 


4.5 


5 


5.5 


12 


93 


28 


20 


11 


6-5 


5.5 


4.5 


4.5 


5 


5.5 


26 


93 


28 


19 


11 


6.5 


5.5 


4.5 


4.5 


5 


5.5 


168 


88 


28 


19 


11 


6.5 


5 


4.5 


4.5 


5 


6 


57 


88 


26 


19 


11 


6.5 


5 


4.5 


5 


5 


6 


40 


88 


23 


19 


10 


6 


5 


4.5 


5 


5 


6 


32 


79 


23 


19 


10 


6 


4.5 




4.5 


5 


6 


28 


70 


23 


19 


10 


5.5 


4.5 




4.5 


5 


6 


26 


62 


23 


19 


10 


5.5 


4.5 




4.5 


5 


8 


24 


62 


23 


16 


10 


5,5 


4.5 


3.5 


4.5 


5 


56 


24 


58 


23 


16 


10 


5.5 


4.5 


3.5 


4.5 


5 


106 


22 


54 


23 


16 


10 


5.5 


4.5 


3.5 


4.5 


5.5 


63 


20 


54 


28 


15 


10 


5.5 


4.5 


3.5 


4.5 


5.5 


32 


20 


54 


28 


14 


10 


5.5 


4.5 


3.5 


4.5 


5.5 


24 


20 


54 


28 


14 


10 


5.5 


4.5 




4.5 


5.5 


20 


20 


54 


28 


14 


10 


5.5 


4.5 




4.5 


5.5 


18 


20 


54 


28 


14 


10 


5.5 


4 




4.5 


5.5 


18 


20 


50 


28 


13 


10 


5.5 


4 


4.5 


4.5 


5.5 


16 


26 


sa 


28 


13 


9 


5.5 


4 


4.5 


4.5 


5.5 


16 


764 


50 


23 


12 


9 


5.5 


4 


4.5 


4.5 


5.5 


16 


664 


50 


23 


12 


8.5 


5.5 


4 


4.6 


4 5 


5 5 


15 
15 


452 

296 


46 
42 


23 
21 


12 
12 


8.5 
8.5 


5.5 
5.5 


3.5 
3.5 


4.5 


4.5 


5.5 


4 5 


4.5 
4 5 


5.5 
5.5 
5 5 


14 
14 
14 
12 


201 


42 
39 
39 

39 


21 

20 
20 


12 

12 

12 
12 


5.5 

8 
8 


5.5 

5.5 
5.5 

5.5 


3.5 
3 

3.5 
3.5 


4 5 


4 5 


4 5 




4.5 




5.0 





Note.— Daily discharge determined from rating curves applicable as follows: Oct. 1, 1912, to Feb. 24, 
1913, fairly well defined below 200 second-feet (same as used for June 1 to Sept. 30, 1912, extending into high 
water); Feb. 25 to Sept. 30, 1913, well defined below 300 second-feet. 



500 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Ventura River near Nordhoff, Calif., for 1911-1914- 

Continued. 



Day. 



Apr. 



July. 



Aug. 



1913-14. 

1 

2 , 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



2.5 
2.5 
2.5 

2.5 
2.5 

2.5 
3.0 
3.0 
3.0 

2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

3.0 
3.0 
3.0 
3.0 
3.5 



3.5 
3.5 
3.5 
3.5 
3.5 

3.5 

3.5 
3.5 
4.0 
4.5 



174 
174 
163 
163 

152 
152 
142 
142 
142 

142 
142 
142 
142 
142 
142 



12 



10 
10 
10 



10 
10 
10 
10 
10 

10 
10 
10 
10 

8.5 

8.5 
8.5 
8.5 
8.5 
8.5 

8.5 
8.5 
8.5 
8.5 
8.5 

8.5 
8.5 
8.5 
8.5 



Note. — No record Jan. 17 to Mar. 16. 

Monthly discharge of Ventura River near Nordhoff, Calif., for 1911-1914. 



Discharge in second-feet 



Maxi- Mini- 
mum, mum. 



Run-off 
(total in 
acre- 
feet). 



Discharge in second-feet. 



Maxi- 
mum. 



Mini- 
mum. 



Run-off 
(total in 
acre- 
feet). 



1911-12. 
October 23-31... 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 



The period. 

1912-13. 

October 

November 

December 

January 

February 

March 

April 



14 

13 

27 

14 

12 
395 
161 

29 

15 
9.2 
5.2 
4.5 



106 
764 
170 
39 



12 

12 

10 

12 

27 

16 
8.5 
5.2 
4.0 
3.7 



3.5 
4.5 
5.5 
5.5 

12 

39 

20 



12.6 
12.2 
14.7 
12.9 
11.5 
71.3 
45.8 
22.0 
12.0 
6.48 
4.40 
4.18 



4.18 
4.53 
5.23 
17.8 
109 
71.4 
25.8 



225 

726 

904 

793 

662 

4,380 

2,730 

1,350 



257 
270 
322 
1,090 
6,050 
4,390 
1,540 



1912-13— Con. 

May 

June 

July 

August 

September 

The year... 

1913-14. 

October 

November 

December 

January 1-16... 
March 17-31.... 

April 

May 

June 

July 

August 

September 

1914. 
October 



20 
12 



5.5 
3.5 



174 
142 
63 
34 
23 



5.5 
3 

2.5 



15.9 
10.0 
5.97 
4.48 
2.95 



22.5 



2.5 
3.5 
9 



34 
26 
16 



2.68 
13.5 
11.5 
32.0 
150 
88.8 
52.2 
29.6 
18.8 
13.8 
10.0 



367 
275 
176 



16,300 



165 

803 

707 

1,020 

4,460 

5,280 

3,210 

1,760 

1,160 

848 

595 



VENTURA RIVER BASIN. 



501 



VENTURA RIVER NEAR VENTURA, CALIF. 

Location. — Near southeast corner of Santa Ana grant, at highway bridge in Foster 
Memorial Park, below Ventura Water Co.'s diversion dam, one-fourth mile below 
mouth of Coyote Creek, three-fourths mile above Weldon Canyon, and about 5 
miles north of Ventura, Ventura County, and mouth of river. 

Drainage area. — Not measured. 

Elevation. — About 200 feet above sea level. 

Records available. — September 4, 1911, to January 17, 1914. 

Gage. — Chain gage fastened to downstream side of bridge; destroyed by flood in 
January, 1914. 

Discharge measurements. — Made from bridge (destroyed by the flood of January, 
1914) at gage or by wading. (See PI. XVII, B, p. 492.) 

Channel and control. — Gravel and boulders; shifts during high water. 

Extremes of discharge. — 1911-1914: Maximum stage recorded, 9.0 feet at 11 a.m. 
February 24, 1913 (discharge, computed from extension of rating curve, 3,940 
second-feet; undoubtedly discharge has been higher); minimum stage recorded, 
1.3 feet December 30, 1912, to January 5, 1913 (discharge, 2 second-feet). 

Diversions. — Diversion for irrigation from main river and tributaries above the 
statiori. Pipe line for irrigation and municipal water supply in the vicinity of 
Ventura heads just above the dam. 

Regulation. — No information. 

Accuracy. — Stage-discharge relation not permanent. Rating curves fairly well 
defined. Daily discharge ascertained by applying mean daily gage height to 
rating table or by shifting-control method. Records usually good except for 
high water. 

Discharge measurements of Ventura River near Ventura, Calif., for 1911-1914. 



Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1911. 
Oct 24 


F C. Ebert 


Fed. 
1.70 
1.70 

1.72 
1.64 
1.50 
2.81 
2.59 
2.05 
2.11 
1.81 
1.52 
1.40 
1.38 


Sec.-ft. 
18 
18 

21 

16 

12 
220 
136 

50 

54 

25 

11 
5.3 
4.8 


1912. 
Oct. 8 
Dec, 2 

1913. 
Jan. 30 
Feb. 28 
Mar. 7 
Apr. 29 
M^ay 22 
June 25 
Aug. 14 
Oct. 23 

1914. 
Jan. 5 


F.C Ebert . .. 


Feet. 
1.35 
1.37 

1.52 
2.84 
2.23 
1.74 
1.73 
1.63 
1.52 
1.40 

1.48 


Secf,. 


24 


liasley Le 
F. C. Ebe 






do 

F.C, Ebert. 


3.4 


1912. 
Jan. 5 


rt 




9 


Feb. 3 

28 

Mar. 13 

]4 

23 

Apr. 23 

May 15 

June 24 


do.... 

do.... 

do.... 

do.... 

do.... 

do.... 

do.... 

do.... 








... 


do 

do 

do 

do 

.....do 

do 

do 




308 
106 
19 
14 
9.3 
7.5 
4.3 


Aug. 6 
20 


do.... 

do.... 










F.C. Ebert.... 




7.2 



Daily discharge, in second feet, of Ventura River near Ventura, Calif, for 1911-1914. 



Day. 


Sept. 


Day. 


Sept. 


Day. 


Sept. 


1911. 
1 




1911. 
11 


23 
23 
23 
23 
21 

20 
21 
18 
14 
20 


1911. 
21 


18 


2. . 




12 . . 


22 


20 


3 




13 


23 


21 


4 


23 
23 

23 
23 
23 
23 
a 23 


14 


24 


20 


5 


15 


25 


20 


6 


16 


26 


20 


7 


17 


27 


18 


8 


18 


28 


21 


9 


19 

20 


29 


21 


10 


30 


21 











a Discharge interpolated. 



502 SURFACE WATER OE PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Daily discharge, in second-feet, of Ventura River near Ventiam, Calif, for 1911-1914 — 

Continued, 



Day. 



1911-12. 

1.... 

2 

3 

4 

5 

e. 

s'.'.'.'.'.'.'.'.'.. 

9 ,... 

10 

11 

12 ,. 

13 

11 

15 

16 

17 

18 

19 

29. 

21 

22 • 

23 

24 

25 

26 

27 

28 

29 

30 

31 



12 
12 
12 
14 

335 
375 
105 
70 
70 
205 
87 
890 
199 
125 
105 



Apr, 



300 
162 
125 
105 
96 
96 
78 
70 
67 
62 

5a 

55 



May 



16 
16 

16 
16 
16 
18 
16 

17 
17 
17 

14 

14 
8.5 
6.8 
6.8 
8.5 

8.-5 
7.7 
7.7 
9.0 



JuJy. 



8.5 

6.5 
6.5 
8.5 
6.5 

6.5 
5.6 
5.& 
5.6 
5.6 

5.0 
5.0 
5.0 
5.0 
5.0 

5.0 
5.0 

6.5 



Axj^., 



6.5 
6.5 
6.5 

5.0 
5.0 
5.0 

5.0 

3.8 

3.8 
3.8 
3.8 



4.5 
4-. 5 
5.0 
5.0 
5. a 

5.0 
5.0 
4.5 

3.8 
3.8 

3.8 
3.0 
2.5 
2.5 
2.5 
2.5 



2.5 
2.5 
2.5 
2.5 
2;5 
2,^ 
2.5 
3.8 
5. a 
4.5 
3.8 
3.8 
3.8 
2. 5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
2.5 
a 2. 5 
a 2. 5 



Note. — Daily discharge determined from fairly v/ell defined rating curves applicable as follo-wsr 
4 toDec. 31, 1911, and Jan. 1 to Sept. 30, 1912. 

1912-13. 

1 

2 

3. , 

4 

5..... 

6.. 

7 

8. 

9 

10 

11. 

12.... 

13 

14... , 

15 

16 , 

17 

18 

19 

20 

21 

22 

23..... 

24 

25 

26 

27 , 

28.... 

29 

30 

31 



a4 


r 


a5 


2 


8 


220 


37 


21 


10 


12 


12 


a 4 


5 


5 


2 


8 


186 


37 


21 


10 


12 


12 


a4 


5 


5 


2 


8 


154 


37 


21 


10 


12 


8 


a 4 


5 


5 


a2 


8 


125 


37 


21 


10 


12 


8 


a 4 


5 




2 


8 


125 


37 


21 


10 


12 


8 


o 4 


5 


5 


3 


8 


111 


37 


22 


10 


12 


8 


a 4 


5 


5 




18 


111 


37 


22 


10 


12 


9 




5 


5 




535 


97 


37 


22 


10 


12 


9 




5 






a 300 


97 


37 


24 


10 


12 


9 




5 






62 


97 


31 


24 


10 


12 


10 




5 






49 


84 


31 


23 


10 


12 


a 10 




5 






33 


77 


31 


23 


10 


12 


a 9 




5 






33 


72 


31 


22 


10 


12 


a 9 




5 




5 


29 


72 


31 


21 


10 


12 


9 




5 




175 


25 


72 


31 


21 


10 


12 


a 9 




5 




105 


25 


62 


31 


19 


10 


12 


a8 




5 




96 


25 


62 


31 


19 


10 


12 


a8 




5 




55 


22 


72 


31 


17 


10 


12 


o7 




5 




33 


22 


72 


31 


17 


10 


12 


v7 




5 




25 


22 


62 


31 


16 


10 


12 


aQ 




5 




24 


22 


62 


31 


16 


10 


12 


6 




5 




22 


22 


52 


31 


13 


10 


12 


6 




5 




18 


25 


52 


25 


12 


10 


12 


6 




5 




18 


3,200 


52- 


25 


12 


12 


12 


& 




5 




13 


1,950 


52 


25 


12 


12 


12 


6 




5 




13 


615 


52 


23 


12 


12 


12 


6 




5 




13 


485 


52 


23 


12 


12 


12 


6 




5 




13 


290 


52 


23 


10 


12 


12 


6 




& 




13 




44 


21 


10 


12 


12 


6 




5 


2 


10 




44 


21 


10 


12 


12 


6 






2 


8 




37 




10 




12 


6 



Sept. 



a Gage not read; discliarge interpolated. 

ISToTE. — Daily discharge determined as follows: 

Oct. 1, 19.12,.to Feb. 24, 1913, from: fairly well defined rating curves (same as used for Jan. 1 to Sept. 30> 
1912); Feb. 25 to May 5, 1913, and June 29 to Sept. 30, 1913, from curves fairly vi^ell defined below 400 seconds 
feet; May 22 to June 28, 1913, from fairly well defined curves, May 6 to 21, 1913, by indirect method for shift- 
ing control; Oct. 1 to 7, 1912, estimated; Feb. 24 and 25 estimated by extension of rating curves; records 
are only approximate. Discharge interpolated for other days for which record is not given. 



VENTURA RIVER BASIIif. 50S 

Daily discharge, in second-feet, of Ventura River near Ventura, Calif ., for 1911-1914 — Con. 



Day. 


Oct. 


Nav. 


Dec. 


Jan. 


Day. 


Oct. 


Nov. 


Dec. 


.Tait-. 


1913-14. 
1 


5 

5 
5 
5 
5 

5 
5 
5 
5 
5 

5 
5 
5 
5 
5 


27 
12 

8 


5 
5 
5 
5 
5 

5 
5 
5 
5 
5 

5 
5 
5 
5 
5 


6.5 
6.5 

8 
8 
8 

8 
8 
8 

8 
8 

8 
8 
8 
8 
100 


1913-L4, 
16 


5 
5 
5 
5 
5 

5 
5 
5 
5 
5 

5 

4.5 

\ 
4 


6.5 

5 

5 
44 
17 

8 

8 

6.5 

6.5 

6.5 

6.5 

8.5 

5.5 

5 

5 


5 
5 
& 
5 
5 

5 

12 
8 

6.5 
6,5 

6.5 

6.5 
6.5 
6.5 
6.5 
6.5 


445 


2 


17 


125 


3 


18 

19 




4 




5 . ... 


20 




6.,.. 


21 

22 




7 . .. 




8 


23 

24 

25 

26 

27 

28 




9 .. ... 




10 




11 

12 




13 




14 


29 




15 


30 

31 









Note.— Discharge determined from a well-defined rating curve, 
polated; that of Jan, 15 estimated from statioQ at Nordhofl. 



Discharge Dec. 25 and Jan. 1 inter- 



Monthly discharge of Ventura River near Ventura, Calif, for 1911-1914- 



1911. 
September 4-30, 

1911-12. 

October 

November 

December . . . - - 

January. 

February.. 

March 

April.. 

May 

June 

July. 

August 

September... -- 

The year... 

1912-13. 

October 

November. 



Discharge in second-feet. 


Run-off 








(total 
in 








Maxi- 


Mini- 


Mean. 


acre- 


mum. 


mum. 


feet). 


23 


14 


21.0 


1,120 


23 


18 


20.8 


1,280 


21 


21 


21.0 


1,250 


27 


21 


24.8 


1,520 


24 


22 


22.3 


1.370 


19 


12 


15.1 


869 


890 


12 


114 


7,010 


300 


38 


70.2 


4^ 180 


41 

18 


17 

6.8 


25.7 
12.2 


1,580 
726 


8 
8 
5 


5.0 
2.5 
2.5 


6.55 
4.55 

2.82 


403 
280 
168 


890 


2.5 


28.4 


20, 100 


4 


4 


4.0 


246 


5 


^ 


5.0 


298 



1912-13. 
December... 

January 

February 

March 

April.. 

May. 

June 

July 

August 

September... 



The year... 

1913-14. 

October 

November 

December 

January 1-17 

The period . 



Discharge in second-feet 



Max-i- Mini- 
mum, mum. 



5 
175 
3,200 
220 
37 
24 
12 
12 
12 
7 



3,200 



5 
44 
12 
445 



2 
2 

8 
37 
21 
10 
10 
12 



Run-off 

(total 



acre- 
feet). 



4.2 
22.6 
281 
88.3 
30.7 
17.6 
10.5 
12.0 



8.7 



4.85 
7.88 
5.71 
45.8 



258 

1,390 

15, 600 

5,120 

1,830 

1,080 

625 

738 

480 

339 



28,000 



298 

469 

351 

L,540 



504 SURFACE V/ATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

MISCELLANEOUS MEASUREMENTS. 

Measurements of stream flow in the Ventura River basin at points 
other than those at which gaging stations have been maintained are 
recorded in the following table: 

Miscellaneous discharge measurements in Ventura River drainage basin for 1902-1914. 



Date. 


Stream. 


Tributary to- 


Locality. 


Dis- 
charge. 


Sept. 25,1902 
SeT)t. 19, 1903 


Ventura River 

"".[doi!*;!!!!'.!;;;!! 
do 


Pacific Ocean 

do 

do 

.....do 


Below diversion of Ventura City 

water system. Coyote Creek. 
Below upper diversion 


Sec.-ft. 
5.23 

3.7 


Mar. 18,1914 

Apr. 9, 1914 
May 30,1914 
Sept. 25, 1902 

Do .... 


600 feet above junction with Coyote 

Creek. 
do 


280 
167 


.do 


do 


.do 


69 


Nortli Fork of Ven- 
tura River. 
Matilija Creek 


Ventura River 

do 


In flume 


.33 


Above junction with North Fork.. 
do 


2 


Oct. 24,1906 


do 

do 

.....do 

North Fork of Mati- 
lija Creek. 
Vio.,,. 


do 

do 


7.7 


Oct 23, 1911 


300 feet above junction with North 
Fork. 

200 feet above junction with North 
Fork. 

500 feet above junction with Mati- 
lija Creek. 

100 feet above mouth, below Shel- 
don flume. 

do 

do 


9 


Jan. 6, 1912 


do 


10 


Oct. 24,1906 
Oct 23 1911 


do 

. . .do 


2.2 

20 


Jan 6 1912 


do 


do 


3 4 


Feb 2 1912 


do 


...do 


2 1 


Feb 21 1912 


.do 


do 


.do .... . .. 


2 


Mar 23 1912 


do 


do 


do 


6 1 


Apr. 23' 1912 
May 14,1912 
Tune 25 1912 


do!!!!!!!!....]" 


do 


do..... 


7.4 


do 


.do .. 


3 


do 


. .do 


Near mouth above Sheldon flume. . 
do 

Near mouth, below Sheldon flume. 
Near mouth, above Sheldon flume, 

in S W.i NW.i sec. 28, T. 5 N., R. 

23 W. 
do 


2 1 


Aug. 6,1912 
Aug. 21,1912 
Oct 8 1912 


. do 


Ventura River 

do 

do 


1 


do 

...do 


.2 

1 1 


Dec 2 1912 


do 

.....do 

do 

do 

do 

do 

do 

do 

do 

do 

do 


do 

do 


1 5 


Jan. 6, 1913 


do 


2.5 


Jan 30, 1913 


do 

do 

do 

do 

do 

do 

do 

do 

do 


do 


2 1 


Mar. 8,1913 
Apr. 29,1913 
May 22,1913 
June 25 1913 


do 

do 

do ... 


21 
3.6 

2 8 


do 


2 


Aug. 14,1913 
Oct 22, 1914 


do 

100 feet above mouth 


.8 
1.1 


Mar 17 19M 


do 


42 


Apr. 9, 1914 
May 30,1914 
Sept. 19, 1914 
Apr. 9, 1914 
Oct 24 1906 


do 

do 

Nordhoff 


22 


do 

do 

Ojai Creek 

San Antonio Creek. . 

do 

do 

do 

Coyote Creek 

do 

do 

do 

do 

do 

do : 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 


do 

do 

do 

do 

do 


9.8 
3.2 
11 


\h miles, below Nordhoff 


4.4 


Mar 18, 1914 




69 


Apr. 9,1914 
May 30,1914 
Mar 23 1912 


do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 


do 

do 


46 
24 




.8 


Apr. 23,1912 
May 15,1912 
Aug. 6,1912 
Aug. 20,1912 
Oct 8 1912 


. . do 


7.3 


do 

do 

• do 


3 
1 
.5 


do 


.4 


Dec*. 2, 1912 
Jan. 5,1913 
Jan. 30,1913 
Feb 28 1913 


do 

do 

do 

do 


.5 
1.4 
1.3 

52 


Mar 7. 1913 


do 


16 


Apr. 29,1913 
May 22,1913 
June 25,1913 
Oct. 23,1913 
Mar. 18,1914 
Apr. 9, 1914 
May 30,1914 


do 

do 


2.1 
1.5 


do 

do 


1 


do 


32 


do 

do 


16 
6.9 











SANTA BAKBARA COUNTY. 505 

Miscellaneous measurements of diversions in Ventura River drainage hasinfor 1902-1914. 



Date. 


Name. 


Diverts from— 


Locality, 


Dis- 
charge. 


Oct. 23,1911 


Flume . 


North Fork 


Intake 


1.3 


Sept. 26, 1902 
Sept. 19, 1903 
Oct. 23,1911 

Aug. 6, 1912 
Aug. 21,1912 


Power ditch 


do 


Near intake 


1 5 


do 

Sheldon flume 

do 


do 

North Fork of Mati- 

lija Creek. 
do 


Old mill 


3.3 


Intake, SW.iNW.isec.28, T.5N., 

R.23W. 
do 


1.3 
1 


do 


do 


do 


1.3 


Oct. 8,1912 


do 


do 


do 


1.1 


Dec. 2, 1912 
Jan. 30,1913 


do.. 

do 

do 

do 

do 

do 

do 

Ventura Light & 
Power Go's, canal. 


do 

do.... 


«'•' 


May 22,1913 
June 25,1913 


do 


do 


1.4 


do 

do 

do 

do 


do 


1.8 


Aug. 14,1913 
Oct 22 1913 


do 


1 


50 feet below intake 


1 


Sept. 19J.914 
Sept. 19, 1903 


do 

Upper diversion city supply 


L6 
7 







STREAM FLOW IN SANTA BARBARA COUNTY. 

CABPINTEBIA CHEEK BASIN. 

GOBERNADOR CREEK NEAR CARPINTERIA, CALIF. 

Location.— In SW. i SW. i sec. 14, T. 4 N., R. 25 W., 1,000 feet below junction of 
Eldorado and Steer creeks and 3^ miles northeast of Carpinteria, Santa Barbara 
County. 

Drainage area. — Not measured. 

Elevation. — About 800 feet above sea level. 

Records available. — June 24, 1916, to September 30, 1918 (not complete). 

Gage. — Vertical staff in two sections on left bank. A temporary gage at datum 1.11 
feet lower was used June 24 to September 11, 1916. 

Discharge measurements. — Made from cable 150 feet below gage or by wading. 

Channel and control. — Small boulders and gravel; shifts. Banks high and not 
subject to overflow. 

Extremes of discharge. — 1916-1918: Maximum stage recorded, 3.5 feet Febru- 
ary 21, 1917 (discharge, 200 second-feet); minimum stage, 1.26 feet August 31, 
1916 (discharge, 0.8 second-foot). 

Diversions. — None above. The Gobernador Water Co. diverts at their submerged 
dam 1 mile below station. 

Regulation. —None. 

Accuracy. — Stage-discharge relation not permanent. Rating curves fairly well 
defined. Gage read to hundredths occasionally. Daily discharge ascertained 
by applying gage height to rating table. Records good but only fragmentary. 

Cooperation. — Gage-height record and some discharge measurements furnished by 
K. C. Lillingston. 



506 SUBFACE WATER OF PACIFIC SL.OPE, SOUTHERN CALIFORNIA. 

jDischarge measurements ofGohernador Creek near Carpinteria, Calif., for 1916-1918. 



Date. 


Made bv — 


height. 


Dis- 
charge. 


Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


1916. 
June 24 


F.C.Ebert 


Feet. 
1.33 
1.27 
1.27 
1.29 
1.29 
1.51 

1.42 

1.37 

1.27 


1.1 

1.0 
.9 
.9 

6.4 

5.8 
4.9 

2.2 


1917. 
Feb. 20 

22 

27 

Mar. 6 

June 28 

Nov. 30 

1918. 
Apr. 11 

May 25 
Aug. 1 


K. C. LilliBgston 

do 

F.C.Ebert 


Feet. 
2. 75 
2.42 
1.73 
1..50 
1.28 
1.22 

1.30 
1.22 
1.10 


Sec.'jU 


Sept, 12 

12 


do-... 

K.C.Lillingston 

do 

F. C. Ebert 


81 
23 


Nov. 29 
29 


K. C. LilliDgton 

F C Fbcit 


9.1 

1 4 


Dec. 25 

1917. 
Jan. 4 


K. C. Lillingston 

K C. Lillingston 

F. C. Ebert 


do 

F. C. Ebert 


.8 
6.5 


6 


do 


3.1 


Feb. 8 


do 


.do 


1.2 











Daily discharg 


e, in second-feet, ofGohernador 


7ree^ near Carpinteria, 


Calif. , for 1916-1918. 


Day. 


Tunc. 


July. 


Aug. 


Sept. 


Day. 


June. 


July. 


Aug. 


Supt. 


1916. 
1 






1.1 




1916. 

16 . . 






1.1 


1.0 


2 








17 








3 




1 


3 






38. .. 






1.1 


1.0 


4 






1.1 




19 






1.0 


5 








20 




1.3 




1.0 


6 










21...... 






1.1 
1.1 












22 




1.5 


1.1 


8 




1.3 


1.1 
1.1 


1.3 


23..... 




9 




24. 


1.5 








10 






25... 








11 






1.0 
.9 


26 




1.3 


.9 


1 


12 





1.4 


27 .. 


1.5 


13 






28::::::::::::::: 








14 




1.3 


1.1 




29... . . 




i.5 




.9 


15 




30 


1.3 
















31. .- ... 


1.1 


.8 






! 




Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June: 


July. 


Aug 


Sept. 


1916-17. 
1 










14 


"'I'.h' 


3.1 










2 


5 
3.6 


1.0 


! 






1.8 


1.8 




3.... 












4 


.9 ^ ..: 6 






4.3 




1.8 


L8 




S 






10 
9 


2.5 






6 






4. 6 


'""2.' 3" 
2.0 


i 

1 






7 








4.3 










8 




1.0. 1.6 


3.7 
3.1 


2.5 


1.5 





1.8 


1.5 


9 












10 


13 




















11 










4.0 






1.8 






12 1 
















13 1 




1.2! 1.6 












1.8 






14 




2.5 










1.8 

1.8 




15 






1.8 






1 




1,5 


16 


11.2 


1.3 




6.5 




2.0 1.1 






17 








18 




, 












1.5 




1.8 




19 ,.. 






1.3 
















20 


11.2 


1.0 




112 






.. 


1.6 






21 ' 


1.6 






3.7 


1 






22 


1.0 








80 


5.5 








1.5 


23 i 








1.6 








1.8 




.. 1.5 




24 1 










19 


5.5 








1.5 




25 






6 


3 


1 








1.5 




26.. 














1.8 








27 


1.2 








23 

18 


■"■4:9" 


3.i 




1.6 






28 








1.6 


1.8 
1.8 






29 




.9 
.9 








1.5 




30 


-.1.0 




2,8 




4.9 



3.1 








31 
















1.5 





Note.— Maximum stage Jan. 3, 2.11 feet (discharge, 52 second-feet). 



SAUTA BABBARA COUKTY. 



507 



Daily 



in second-feet, of Gobernador Creek near Carpinteria, Calif., for 19 16-' 
i9i<?— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


I^eb. 


Mar. 


Apr. 


May. 


-Tune. 


July. 


Aug. 


Sept. 


1917-18. 
1 






1.6 


2.2 
















2 












.. .. 


' i. 2 

1.2 




3 










2.2 








2.3 




4 














.5.5 










1,1 

1.8 




1.5 


2,2 








2,3 




6- 




22 





3.1 


1 


7 




i.i 
1.1 












1.1 


S- 


1 


1.8 


2.2 








3.1 






I 


1 


15 








1,6 




10 


















2.0 




1,1 


11 


1.3 








2.2 


■ 




4.9- 






12 


1.5 


1.1 














13 


1.5 









6 




2,7 


2.3: 


1.4 




14 






2.2 






J 5 


1.5 


.. 


2.5 






4.3 


2.7 








16 


1.5 
1.5 




2.2 


15 








1.2 


17 














1.8 




18 















4.3 




2.7 


2.3 




19 










2.2 










20 










40 

29 
26 

18 








2.6 






21 




















1.2 


22 






1.5 


2.2 


"is"" 






2.7 








23 












1.2 




2-1 . ... 




1 














25 




j 




10 


14 




i 


2.0 






26- 


1.1 






2.5 






27 






6 . 


10 












28 













3.1 


2.3 
^3 






2.0 


29 






1.5 








.5.5 




1.1 




30 


1.1 


1.1 


..2.2 








31 










1 




1.2 
















' 


i 







Note. — No gage-height record on days when no discharge is given. 



measurements of diversion from Gobernador Creek near Carpinteria, Calif, for 
1916-1917. 



Date. 


Dis- 
charge 
(sec.-ft.) 


Remarks. 


Jan, 9 


1916. 


0.8 
1.4 
.9 

.36 


At intake which is below gaging station on ereek. 
Do. 


June 24 


Sept, 12 --- 


Do. 


Feb. 8... 


1917. 


Gobernador Water Co.'s pipe line at first gate box below diver- 
sion dam. 





Note. — Intake was moved about one-eighth mile upstream some time between Jan. 9 and June 24, 1916. 



508 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

MISSION TUNNEL. 
MISSION TUNNEL NEAE, SANTA BARBARA, CALIF. 

Mission Tunnel, which is a part of the Santa Barbara water-supply 
system, extends through the Santa Ynez Mountains to Santa Ynez 
Kiver. The length is 19,540 feet and the cross section, outside of 
•lining, is about 7 by 8 feet. The Santa Ynez Kiver (north) portal 
is in the NE. | NE. | sec. 15 and the Mission Canyon (south) portal, 
near the east quarter corner of sec. 33, T. 5 N., K. 27 W. When 
Gibraltar reservoir (under construction) is completed, the water from 
Santa Ynez River will be diverted for municipal use at Santa Barbara. 
The seepage into this tunnel, which is given in the following table, is 
measured over a weir in sand box just before it enters the water main. 
When water is diverted from Santa Ynez River into tunnel, it is 
measured over a weir at North Portal and this amount is deducted 
from weir record at South Portal. 

Seepage, in second-feet, into Mission Tunnel, Santa Barbara, Calif., for 1912-1917. 



Month. 


1912 


1913 


1914 


1915 


1916 


1917 


Jan. 1 






3.76 
4.90 
6.42 
5.16 
5.30 
5.46 
5.46 
5.32 
5.02 
4.62 
4.36 
4.14 


4.18 
4.18 
5.18 
5.18 
5.00 
4.92 
4.72 
4.38 
4.28 
4.16 
3.94 
3.62 


3.62 
5.18 
5.66 
5.06 
4.66 
4.38 
4.40 
4.24 
4.18 
3.96 
3.72 
3.72 


3.46 


Feb. 1 


5.18 
4.28 
3.90 
3.90 


5.56 
6.16 
5.06 
5.02 
6.00 
4.76 
4.40 
4.20 
3.88 
3.88 
3.88 


3.70 


Mar. 1 


4.78 


Apr. 1 


4.38 


May 1 


3.94 


June 1 


3.70 


July 1 




3.78 


Aug. 1 




3.50 


Sept. 1 

Oct. 1 




3.54 


Nov. 1 






Dec. 1 













SAN ROQUI CREEK NEAR SANTA BARBARA, CALIF. 

San Roqui Creek was measured during the year 1890 by Charles J. 
Johansen for the Pacific Improvement Co. The point of measure- 
ment was a short distance below the San Roqui Tunnel, which was 
being built from 1899 to 1901, the point of measurement being near 
an old dam in the stream. 



SANTA BARBARA COUNTY. 



509 



Discharge measurements of San Roqui Creek near Santa Barbara, Calif., for 1890. 

[By Charles J. Joliansen.] 

At old diversion box below tunnel. 



Date. 


Dis- 
charge. 


Date. 


Dis= 
charge. 


Date. 


Dis- 
charge. 


Feb. 13 


Sec-feet. 
4.96 
5.70 
9.61 
11.03- 
6.91 
6.28 
5.67 
5.67 
5.20 
5.20 
4.96 
4.96 
4.27 
4.27 
4.73 
4.73 
4.27 
3.84 
3.84 
3.84 
3.42 
3.42 
3.42 
3.21 
3.21 
3.00 
2.80 
2.62 
2.62 
2.42 
2.15 
1.88 
1.80 
1.80 
1.55 


May 1 . 


Sec.-fect. 
1.55 
1.39 
1.39 
1.39 
1.23 
1.23 
1.30 
1.23 
1.23 
1.23 
.63 
- .65 
.65 
.65 
.54 
.54 
.52^ 
.52 
.44 
.40 

:i 

.35 
.35 
38 
.38 
.38 
.38 
.35 
.35 
.29 
.29 
.29 
.29 
.29 


July 9 


Sec-feet. 
29 


19 


3 


11 


.26 


21 


5 


13 


28 


26 


7 


15 


.26 


Mar. 1 


9 


17 


.28 


3 


11 


19 


.23 


5 


13 


21 


.20 


6 


15 


23 


.20 


8 


17 


25 


.20 


10 


19 


27 


.20 


12 


20 


29 


.20 


]4 


22 


31 


.24 


16 


24 


Aug. 2 


.24 


18 


26 


4 


.24 


20 


28 


6 


.24 


22 


30 


8 


.26 


24 


June 2 


10 


.23 


26 


4 


12 


.28 


28 




14 .. . 


.23 


30 


7 


16 


.23 


Apr. 1 


9 


18 


.20 




11 


19 


.20 


5 


13 


22 


.17 


7 


15 


Sept. 2 


.19 


9 


17 




.19 


11 


19 


4 


.19 


13 


21 


5 


.19 


15 


23 


6 


.19 


17 


25 


7 


.19 


19 


27 


8 


.19 


21 


29 


10 


.19 


23 


July 1 


11 


.19 


25 




12..... 


a9 


27 


5 


13 


.19 


29 


7 


14 


.19 











Below old diversion box. 






Aug. 26 
28 
30 

Sept. 2 



0.09 
.09 
.07 
.04 



Sept. 4., 



0.04 
.05 
.04 
.04 



Sept. 12.. 



0.04 
.04 



SAlSr JOSE CREEK NEAR GOLETA, CALIF. 

The following measurements of San Jose Creek were made by 
Charles J. Johansen for the Pacific Improyement Co. The pipe 
line along the West Fork of San Jose Creek was not carrying water 
in the year 1890. 

The point of measurement of the West Fork was a short distance 
above its junction with the East Fork, or main stream. The main 
stream, or East Fork, of San Jose Creek was gaged a short distance 
above its junction with the West Fork. 



S^^IO SUEFACE V/ATER OF PACIFIC SLOPE, SOUTHERN CALIFORl^IA. 



Discharge measurements of San Jose Creek near Ooleta, Calif., for 1890. 
[By Charles J. Johansen.) 
West Fork at mouth. 



Date. 


Dis- 
charge. 


Date. 


Dis- 
charge. 


Date. 


Dis- 
charge. 


Feb. 4 


Sec.-feet. 
1.57 
.54 
.94 
.60 
.60 
.54 
.54 
.50 
.50 
.44 
.44 
.44 
..50 
.44 
.40 
.40 
.40 
.40 
.40 1 
.40 ! 
.40 
.10 
.40 
.35 
.40 
.40 
.32 
.29 
.32 


Apr. 21 


Sec.-fcet 

'.Z2 
.32 
.32 
.35 
.32 
.26 
.32 
.32 
.26 
.26 
.23 
.26 
.23 
.26 
.20 
.23 
.23 
.23 
.23 
.23 
.21 
.21 
.21 
.21 
.18 
.23 
.21 
.21 


Tune 16 


Sec.-feet. 
0i27 


15. 


^23 


18 


21 


28 


25 


20 


.19 


Mar. 1 


27 


22 


.21 


3 


29 


24 


.17 


5 


May 1 


26. 


.19 




3 

5 . 


28 


.20 


9 


30 


20 


11 




July 2. 


.17 


13 


9 




. 17 


15 


11 


b. 


.18 


17. .. 


12 


8 


.17 


19 


13 


10 


.17 


21 


15 . 


12 


.17 


23 


17 


14 

16 

18 

20 


.16 


25 


19 


.16 


27 


21 . . 


.14 


. 29 


23 . 


.16 


31 


25 .. 


22 

24 


.14 


Apr. 2 


27 


.17 


4 


29 


26... 


.16 


6. 


31 .. 


28 . .. ..-. 


.17 


8 


June 2 


30 

Aug. 1 


.17 


10 


4 


.17 


12. 


6 


2 

3 


.17 


14 


8 

10 . 


.17 


15. 


4 


.17 


17 


12 


6 


.17 


19 


14 


8 


.17 











East Fork above West Fork. 



Mar. 1 


Sec.-feet. 
6.38 
5.76 
5.17 
4.88 
4.59 
4.03 
3.76 
3.51 
3.00 
3.51 
5.11 
4.59 
4.59 
4.31 
4.31 
4. 03 
■ 4.03 
3.51 
3.51 
3.51 
3.25 
3.00 
3.00 
1.97 
2.24 
2.10 
2.10 
1.97 
1.97 
1.97 
2.10 
1.97 
1.72 
1.72 
1.72 
1.72 
1.72 
1.18 


May 13 


Sec.-feet. 
1.59 
1.47 
1.47 
1.47 
1.19 
1.19 
1.25 
1. 19 
1.19 
1.19 
1.12 
.94 
.88 
.91 
.91 
.94 
1.00 
1.12 
1.06 
1.00 
.82 
.82 
.88 
.94 
.82 
.1% 
.76 
.79 
.76 
.71 
. 73 
.70 
.70 
.65 
.62 
.60 
.60 
.63 


July 28 


Sec-feet. 
0.54 


3. 


15 


^ 30 


.60 


5 


17 


Aug 1 


.63 


7 


19 


2 


.63 


9 ... 


21 


3 


.63 


11 


23 


4 


.63 


13 


25 


1 6:;::::;;::::::: 


.63 


15 


27 


8.. 


.63 


17 


29 


11 


.88 


19 


31 


13 


.88 


21 


June 2 


15 


.82 


23 


4 


17 


.65 


25 


6 


19 


.60 


27 


8 


21. 


.60 


29 


10 


23 


.60 


31 


12 


25 


.65 


Apr 2 


14 


27 


.65 


4 . 


10 


29 


,60 


6 


18 


31 


.60 


g 


20 


Sept 2 


.57 


10 


22 




.40 


12 


24 


6 


.44 


14 


26 


8 


.57 


15 


28 


10 


.44 


17 


30 


12 


.54 


10 


July 2 


14 


.50 


21. 


4 




.60 


23 


6 


18, 


.60 


25 


8 


20 


.65 


27. 


10 .. . 


22 :.... 

24 

26 

28 

30 


.60 


29 


12 


.71 


May 1 


14 


.71 


^ 3 


16 


.82 


5. 


18 


.71 


7 


20 


Oct. 2 ■ 


.71 


9. 


22 


4 


.68 


11 


24 


6 

7 


.60 


12 


26 ... 


.61 











SAJiJTA BAKBARA COUNTY. 



511 



LOMA ABAJO HIVER. 

The Loma Abajo was measured by Charles J. Johansen for the 
Pacific Improvement Co., as indicated below. The point of meas- 
urement was a short distance above the junction with Gato Creek. 
At the time of these measurements no water was flowing in the pipe 
line from the Loma Abajo to the Ontare ranch. 

Discharge measurements of Loma Abajo Fiver in Santa Barbara County, Calif., for 1890. 
Above junction with Gato Creek. 

[By Charles J. Johanson.] 



Date. 


Dis- 
charge. 


Date. 


Dis- 
charge. 


1 

Date. 


Dis- 
charge. 


F«b 7 


Sec.-fcet. 
3.84 
3.00 
5.67 
3.21 
3.00 
2.80 
2.80 
2.24 
2.06 
2.06 
1.88 
1.88* 
1.88 
1.55 
1.55 
1.55 
1.39 
1.39 
1.39 
1.23 
1.23 
1.08 
1.23 
1.08 
.92 
.76 
.76 
.76 
.76 
.76 
.76 
.76 
.76 
.68 
.68 
.60 
.60 
.60 


May 
June 

July 


14 


Sec-feet. 
0.46 
.60 
.53 
.53 
.74 
.59 
.59 
.61 
.61 
.59 
.58 
.49 
.49 
.44 
.47 
.47 
.42 
.50 
.56 
.52 
.49 
.42 
.45 
.42 
.37 
.34 
.42 
.26 
.24 
.23 
.24 
.24 
.24 
.20 
.23 
.17 
.20 
.18 


July 27... 


Sec.-fcet. 
0.21 


14 


16 


29 


.21 


27 


18. 


31.. 


.23 


Mar 2 . .. 


20 


Aug. 2 


.24 


4 


20 


4 


.26 


6 


22 


6 


.20 


9 


24 


8 


.18 


n 


26 


10 


.24 


13 .... 


28 


12 


.27 


15 


30 


14 


.30 


17 


1 


17 


.12 


21 


3 


19 


.13 


23 


5 


21 


.17 


25 


7 


23 


.11 


27 


9 


25 


.12 


29 


11 


27.. 


.12 


31 


13 


29 


.11 


Apr 2 


15 


31 . .. 


.09 




17 


Sept. 2 


.07 


6 


19 


4 


.08 


8 


21 


6 


.12 


10 


23 


8 


.06 


12 


25 


10 


.09 


14 


27 


12 


.07 


17. 


29 


14.. 


.09 


18 


1 


' 16 


.09 


20 


3 


i 18 


.11 


22 .- . 


r 


: 20 . . 


.08 


24 


fj 


22 


.09 


26:'"'::::::::::::: 


9 


24 


.12 


28 


11 


26 


.13 


30 


13 


28 


.14 


May 2 


15 


i 30 


.30 




17 . 


! Oct. 2 


.20 


6 


19 


4 


.14 


8. 


21 


6 


.14 


10 


23 






12 


25 










Date. 


Locality. 


Dis- 
charge. 


Date. 


Locality. 


Dis. 
charge. 


Aug. 18, a.m.. 

18, p.m.. 

21,a.in.. 

21, p.m.. 
May 21 


Below I 
.....do. 

do. 

do. 

Upper 
Fork. 


Ipper Forks 


Sec-fat. 
0.07 
.04 
.11 
.04 
.46 


May21-.. 


Upper Forks— West 
Fork. 


Bec.-feet. 
0.07 


Forks— East 


June 


L 

4 




Upper Forks— East 

Fork. 
Upper Forks— West 

F5rk. 


.31 

.06 



GATO CREEK. 

Gato Creek was rjaeasured by Charles J. Johansen for the Pacific 
Improvement Co., as given below. It was gaged a short distance 
above its junction with the Loma Abajo, and at the tim.e of its meas- 
urement no water was being conveyed in the pipe line situated along 
this stream. 



512 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Discharge measurements of Gato Creelc at mouth, Santa Barbara County, Calif., for 1890, 
[By Charles J. Johansen.] 



Date. 


Dis. 
charge. 


Date, 


Dis- 
charge. 


Date. 


Dis- 
charge. 


Feb. 7 


Sec-feet. 
2.26 
2.37 
2.81 
2.05 
1.95 
1.85 
1.85 
1.65 
1.55 
1.45 
1.36 
1.45 
1.36 
1.27 
1.09 
1.09 
1.00 
1.00 
.92 
.92 
.92 
.83 
.83 
.76 
.76 
.68 
.76 
.78 
.76 
.68 
.68 
.60 
.68 
.60 
.68 
.68 
.60 
.53 


May 12 


Sec-feet. 
0.53 
.46 
.53 
.46 
.46 
.59 
.59 
.58 
.56 
.56 
.54 
.49 
.50 
.49 
.44 
.50 
.45 
.50 
.58 
.50 
.49 
.44 
.47 
.45 
.42 
.44 
.49 
.34 
.35 
.32 
.34 
.34 
.35 
.33 
35 
.27 
.32 
.26 


July 27 


Sec-feet. 
0.32 


14 


14... 


29 


.34 


27 


16 


31. 


.34 


Mar. 2 


18 




.34 


4. 


20 


4 


.34 


6 


22 


6. 


.29 


9 


24. 


8 


.27 


11 


26 


10 


.32 


13 


28. .. 


12. 


• 35 


15 


30 


14. 


.30 


17.. 




15 


.27 


21 


3 


17. 


.26 


23 


5 


19 


.28 


25 


7 


21 


.35 


27 


9. . . 


23. 


.28 


29 


11. 


25 


.30 


31 


13 


27 


.30 


Apr. 2 


15. 


29. 


.28 


4 


17 


31 


.26 


6 


19 


Sept. 2... 


.22 


8 


21 


4. 


.22 


10 . 


23 





.26 


12 


25 


8... 


.26 


14 


27. 


10. 


.26 


16 .. 


29 


12 


.26 


17 


July 1 . . 


14... 


.22 


18 




16. 


.22 


20 


5 


18 


.26 


22 


7. 


21 


.30 


24 


9. 


22. 


.22 


26 


11 


24 


.22 


28 


13. . 


26... 


.22 


30 


15 


28. 


.37 


May 2 


17 


30 


.60 




19. 


Oct. 2 


.42 


6 


21 


4. 


.35 


8 


23 


6 


.30 


10... 


25. 


7 


.30 











SANTA YNEZ RIVER BASIN. 



GENERAL FEATURES. 

Santa Ynez River is the only large stream wholly in Santa Bar- 
bara County. Its drainage basin lies north of the Santa Ynez 
Mountains, extending for a distance of about 80 miles parallel to the 
coast line, and comprising about 900 square miles. Four-fifths of 
this area is mountainous, including the north slope of the Santa 
Ynez and the south slope of the San Rafael Mountains, and furnishes 
practically all of the run-off. 

Santa Ynez River rises near the boundary line between Ventura 
and Santa Barbara counties, where the Santa Ynez and San Rafael 
mountain ranges merge, flows nearly due west, and enters the Pacific 
Ocean at Surf, about 8 miles north of Point Arguello lighthouse, 
where the coast line makes a sharp turn to the north. 

Small tributaries are numerous, but the only important one is Mono 
Creek, which drains 120 square miles of the southern slope of the San 
Rafael Mountains and joins the Santa Ynez River about 13 miles 
below its source. 



SANTA BAEBARA COUNTY. 513 

Elevations in the Santa Ynez Mountains range from 3,000 to 4,000 
feet; in the San Rafael Mountains they range from 4,000 to 6,000 feet, 
with a few high peaks, such as Mount Pinos, extending 8,826 feet 
above sea level. The rocks throughout the entire basin consist of 
shale, sandstone, and conglomerate. 

The greater part of the drainage basin is included in the Santa 
Barbara National Forest and is sparsely covered with brush and 
small trees, only small areas on the higher elevations having any 
considerable growth of timber. 

The mean annual precipitation in the area ranges from 20 to 30 
inches, the increase being gradual from the lower to the higher alti- 
tudes, and is almost entirely rain, there being only a light snowfall on 
the higher elevations during the winter. 

Some small diversions for irrigation are made above Lompoc, and 
present v/ater rights exceed the low-stage flow of the stream. The 
basin affords good storage sites. Several reservoirs have already been 
surveyed and their combined capacity far exceeds the mean annual 
run-off. 

Gibraltar dam (PI. XVI, B, p. 451), now under construction by the 
city of Santa Barbara, will form a reservoir which will be part of 
the municipal water-supply system. 

G AGING-STATION RECORDS. 
SANTA YNEZ RIVER NEAR SANTA BARBARA, CALIF. 

Location.— About on line between sees. 10 and 11, T. 5 N., R. 27 W., at Gibraltar 
dam site, just above mouth of Devil Canyon Creek, and about 7 miles north of 
Santa Barbara, Santa Barbara County. Mono Creek enters 3| miles above 
station. Januaiy 1 to June 20, 1903, station was maintained above junction 
with Mono Creek. 

Drainage area. — 218 square miles at site of station maintained previous to August 
2, 1916 (measured on topographic maps). 71 square miles at site above Mono 
Creek. 

Elevation. — About 1,200 feet above sea level. 

Records available.— November 1, 1903, to April 30, 1907; October 1, 1907, to Jan- 
uary 31, 1908; February 6, 1910, to September 30, 1918. Station was maintained 
above Mono Creek, about 4f miles above present site January 1 to June 20, 1903. 

Gage. — Friez water-stage recorder on left bank at north portal of the Santa Barbara 
water-supply tunnel, 50 feet upstream from base of Gibraltar dam; installed 
August 2, 1916. Previous gage was a staff in three sections on right bank about 
900 feet downstream. April 13, 1911, gage datum was lowered 5.00 feet. 

Discharge measurements. — Made from cable at old gage or by wading at various 
sections. (See PI. XVI, C.) 

Channel and control.— Sand and gravel; shifts greatly during extremely high 
water; relatiA^ely permanent at low water. Control for new station, which is 
base of Gibraltar dam, is effective except for low-water periods when flashboards 
and sand bags are placed on crest. (See PI. XVI, B.) 

Extremes of discharge.— 1904-1918: Maximum discharge recorded, 23.0 feet at 
8 p. m. January 25, 1914 (discharge, 13,100 second-feet); no flow during most of 
July to September, 1904, and part of September, 1916. 
142131 ° — 21— v/ sp 447 33 



514 SURFACE WATER OF PACIFIC SLOPE, SOUTHERl^ CALIFORNIA. 



Diversions. — City of Santa Barbara occasionally diverts water at gage into water- 
supply tunnel. The record at new site includes the diversion. From August 8 
to September 30, 1916, and July X4 to September 30, 1917, practically all the 
water in the river was being diverted for municipal use. 

Regulations. — None, 

Accuracy. — Stage-discharge relation not permanent for station below Gibraltar dam; 
permanent at present site except for periods when flashboards and sand bags are 
in use on crest of dam. Rating curves for old gage generally fairly well defined 
except for high water; better defined for new gage. Staff gage below dam was 
read to hundredths once or twice daily; mean daily gage height, beginning 
August 2, 1916, determined by inspecting recorder graph. Daily discharge ascer- 
tained by applying mean daily gage height to rating table or by shifting- control 
method. For short periods, during low water, interpolated between measure- 
ments or taken from weir records showing diversion into water-supply tunnel. 
Records generally fair, but are more accurate for periods when frequent discharge 
measurements were made; good for medium stage in 1916, throughout 1917, and 
for 1918 except during high water. 

Cooperation. — Gage-height record and most of discharge ; measurements furnished 
by city of Santa Barbara. 

Discharge measurements of Santa Ynez River near Santa Barbara, Calif., for 1903-1904, 
1906, and 1911-1918. 

[Made by H. Rankin, R. L. North, L. M. Hyde, and C. M. Watts.] 



Date. 


height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge, 


1903. 


Feet. 


Sec.-ft. 


1903. 


Feet. 


Sec.-ft. 


1903. 


Feet. 


Sec.-ft. 


Jan. 12 


1.10 


1.8 


Mar. 14 


1.43 


12.8 


Apr. 30 

May 2 


1.59 


32 


25 


1.10 


1.9 


15 


1.43 


13.1 


1.56 


28 


27 


1.20 


3.3 


16 


1.43 


12.8 


3 


1.55 


27 


28......... 


3.55 


457 


17 


1.42 


11.6 


4 


1.55 


28 


29 


1.70 


50 


18 


1.41 


11.3 


5 


1.54 


27 


30 


1.50 


22 


19 


1.40 


11.1 


6 


1.51 


20 


31 


1.48 


17.9 


20 


1.40 


10.9 


7 


1.50 


19.6 


Feb. 1 


1.50 


22 


21 


1.40 


10.6 


8 


1.50 


19.0 


2 


1.45 


16 


22 


1.40 


10.5 


10 


1.49 


17.8 


3 


1.42 


14.6 


23 


1.40 


10.6 


11 


1.48 


17.5 


4 


1.45 


15.3 


25 


1.67 


29 


12. 


1.48 


17.7 


5 


1.45 


14.9 


26 


1.55 


19.6 


13 


1.48 


16.7 


7 


1.45 


15.6 


27 


1.50 


17.1 


14 


1.48 


16.7 


8 


1.58 


25 


28 


1.49 


16.9 


15 


1.46 


16.1 


9 


1.50 


18.4 


29 


1.50 


18.0 


16 


1.45 


15.2 


10 


1.49 


17.6 


30 


2.10 


93 


17 


1.45 


14.9 


11 


1.46 


16.1 


31 


2.15 


111 


18 


1.45 


15.5 


12 


1.45 


15.5 


Apr. 1 


3.50 


535 


19 


1.45 


15.2 


13 


1.44 


14.9 


2 


2.60 


242 


20 


1.45 


14.4 


14 


1.44 


14.7 


3 


2.20 


137 


21 


1.45 


13.5 


16 


1.40 


10.8 


4 


2.10 


114 


22 


1.45 


13.6 


17 


1.40 


11.3 


5 


1.90 


73 


23 


1.45 


13.4 


18 


1.40 


11.1 


6 


1.85 


57 


25 


1.43 


12.2 


19 


1.40 


11 


7 


1.80 


53 


26 


1.42 


11.9 


20 


1.39 


10.8 


8 


1.70 


44 


27 


1.40 


11.4 


21 


1.39 


11 


9 


1.65 


43 


28 


1.40 


11.2 


23 


1.38 


10.1 


10 


1.65 


38 


29 


1.40 


10.7 


24 


1.37 


9 


11 


1.62 


38 


30 


1.40 


10.4 


25 


1.37 


9.1 


12 


1.60 


34 


June 1 


1.38 


8.7 


26 


1.36 


8.6 


14 


1.56 


30 


2 


1.38 


8.5 


27 


1.35 


8.7 


15 


1.55 


29 


3 


1.37 


7.8 


28 


1.35 
1.35 


8.3 

8.2 


16 

17 


2.50 
2.30 


175 
136 


4 


1.35 
1.35 


7.1 


Mar. 1 


5 


7.0 


2 


1..35 


8 


18 


2.10 


95 


6 


1.35 


7.0 


3 


1.35 


7.9 


19 


2.05 


86 


8 


1.33 


6.0 


4 


1.45 


14.8 


20 


2.00 


79 


9 


1.32 


5.7 


5 


1.65 


32 


21 


1.90 


74 


10 


1.32 


4.9 


6 


1.50 


20 


22 


1.85 


67 


11 


1.31 


4.9 


7 


1.50 


20 


23 


1.80 


54 


12 


1.30 


4.9 


9 


1.43 


13.5 


24 


1.75 


44 


13 


1.30 


4.9 


10 


1.42 


13.2 


25 


1.71 


43 


15 


1.30 


4.7 


11 


1.42 


13.4 


27 


1.68 


35 


16 


1.30 


4.4 


12 


1.41 


12.7 


28 


1.65 


35 


17 


1.30 


4.4 


13 


1.42 


13,2 


29 


1.60 


33 


•18 


1.30 


4.4 



SANTA BARBARA COUNTY. 



515 



Discharge measurements of Santa Ynez River near Santa Barbara, Calif., for 1903-1904, 
1906, and 19 11-1 9 IS—Gontinued. 



Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge, 


1903. 


Fed. 


Sec.-ft. 


1904. 


Feet. 


Sec.-ft. 


1906. 


Feet. 


Sec.-ft. 


Jxme 20 


1.28 


3.1 


Mar. 30 


2.45 


25.00 


Jan. 12 


2.10 


4.7 


July 12 


1.20 


1.2 


31 


2.42 


23.00 


.26 


2.18 


10.1 


Dec. 20 


(a) 


.30 


Apr. 1 


2.37 


16.30 


Feb. 7 


2.21 


10.1 


21 


(a) 


.35 


2 


2.35 


14.50 


10 


2.40 


37 


22 


(a) 


.35 


3 


2.33 


14.20 


11 


2.61 


63 


23 


(a) 


.40 


4 


2.31 


11.20 


15 


2.94 


144 


24 


(a) 


.40 


5 


2.32 


12.40 


16 


2.53 


59 


25 


(a) 


.40 


6 


2.27 


10.10 


24 


2.30 


24 


26 


(a) 


.40 


7 


2.26 


9.64 


Mar. 14 


3.37 


291 


27 


(c) 


.40 


8 


2.25 


8.87 


lo 


3.10 


189 


28 


(c) 


.40 


12 


2.20 


6.80 


16b.: 


5.30 


2,440 


29 


(c) 


.42 


13 


2,20 


6.87 


i6& 


6.70 


4,170 


30 


(a) 


.42 


14 


2.19 


5.32 


lob 


7.65 


5,440 


31 


(0) 


.42 


15 


2.19 


5.24 


165 


8.65 


6,700 








16 


2.21 


5.93 


17b 


4.30 


970 


1904. 






17 


2.20 


5.61 


17b 


4.10 


780 


Jan. 18 


2.20 


4.32 


18 


2.20 


5.64 


176 


4.30 


968 


19 


2.07 


1.77 


19 


3.03 


101. 00 


17b 


4.10 


777 


Feb. 5... 


2.28 


3.44 


20 


2.83 


74.00 


18b 


3.74 


544 


6 




3.27 
2.35 


21 

22 


2.52 
2.47 


30.00 
25.00 


18b 

Apr. 17........ 


3.74 
2.80 


534 


7 


2.15 


131 


8 


2.15 


2.27 


24 


2.39 


17.10 


June 1 


2.50 


65 


9 


2.10 


2.17 


25 


2.37 


16.60 


29 


2.21 


22 


10.. 


2.08 


1.74 


27 


2.47 


24.00 


July 9 


2.10 


8.5 


16 




6.89 

4.49 

2.74 

■ 2.53 


28 

29 

30 

May 2 


2.46 
2.43 
2.43 
2.38 


23.00 
21.00 
20.00 
17.20 


27 

Aug. 17 

Sept. 24 

Dec. 27 


1.95 
1.82 
1.82 
3.90 


2.0 


17 




1.0 


18 




.7 


19 




468 


20 




2.11 


' 5 




11.40 








27 




45.00 
96.00 


6 

7 


2.29 
2.28 


10.50 
10.20 


1911. 
Mar. 27 


6.50 




28 


3.66 


514 


29 


2.32 


16.20 


8 


2.23 


7.90 


31 


6.20 


361 


Mar. 1 




7.00 


9 


2.23 


8.05 


Apr. 13 


6,72 


229 


2 




5.28 


10 


2.22 


7.69 


24 


5.48 


155 


3 




4.33 


14 


2.19 


5.89 


29 


5.40 


148 


4 




2.70 


15 


2.19 


6.40 


May 5 


5.29 


108 


5 




2.95 

2.88 
2.43 


16 

17 

18 


2.15 
2.13 
2.16 


4.28 
4.05 
4.43 


10 

20 

30 


5.20 
5.10 
5.00 


105 


6 




85 


7 




62 


8 




2.33 


19 


2.12 


3.60 


June 5 


4.96 


55 


9 




2.60 


21 


2.12 


3.29 


11 


4.91 


49 


10 




2.35 


22 


2.12 


3.34 


29 


4.80 


27 


11 


3.08 


135. 00 


23 


2.11 


3.13 


July 2 


4.75 


27 


12 


2.44 


27.00 


24 


2.11 


3.19 


6 


4.75 


22 


13 


2.36 


16.40 


25 


2.16 


4.43 


13 


4.70 


19 


14 


2.32 


11.90 


26 


2.14 


4.41 


20 


4.66 


15 


15 


2.28 


10.20 


27 


2.12 


3.32 


24 


4.65 


13 


19 


2.20 


7.24 


30 


2.09 


2.99 


28 


4.60 


10 


20 


2.20 


6.96 


31 


2.09 


3,12 


Aug. 3 


4.56 


8.3 


21 


2.18 


6.41 


June 1 


2.09 


2.94 


11 


4.60 


8.5 


23 


3.88 


442. 00 


2 


2.07 


2.60 


21 


4.55 


5.0 


24... 


2.82 


70.00 


3 


2,06 


2.50 


29 


4.52 


5.0 


25 


2.68 


49.00 


4 


2.05 


2.28 


31 


4.50 


4.9 


26 


2.52 


30.00 


5 


2.05 


2,28 


Sept. 6c 


4.50 


4.9 


27 


2.46 


26.00 


6 


2.03 


2.06 


6 


4.50 


4.7 


28 


2.43 


24.00 


10 


2.01 


.94 


20 


4,50 


4.7 


29 


2.47 


26.00 















a "Weir measurement. 



b Measured by floats. 



Note.— Measurements during 1911-12 were made about 2,000 feet above the gage. There is an inflow 
of 0,5 to 1 .05 second-feet between the section and the gage. Beginning June 29, 1911, this inflow was closely 
estimated and added to the measured amount. 



516 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Discharge measureinents of Santa Yncz River near Santa Barbara, Calif., for 1903-1904^ 
1906, and 1911-1918— Gontiniied. 



Date. 


Made 


hv Gage 
^^ height. 


Dis- 
charge. 


Date. 


Made by — 


heiglft. 


Dis- 
charge. 


1911. 




Feet. 


Sec.-ft. 


9 
1913. 




Feet. 


Sec.-ft. 


Oct. 2« 


CM. Watt 


s 4.52 


4.9 


Apr. 10 


CM. Watts 


4.82 


28 


14a 


do.... 


4.53 


5.4 


14 


do 


4.81 


26 


21a 


do.... 


4.52 


6.0 


21 


do 


4.82 


28 


31a 


do 


4. 66 


8.3 


26 


do 


4.77 


20 


Nov. lla 


do.... 


4.68 


8.9 


May 1 


do 


4.75 


18 


20o 


do.... 


4. 80 


10 


7 


do 


4.71 


16 


Dec. la 


do.... 


4.80 


10 


15 


do 


4.70 


14 


11" 


do.-.. 


4. 85 


13 


19 


do 


4.67 


10 


21a 


do.... 


4. 83 


13 


25 


do 


4.65 


8.3 










31 


do 


4.64 


7.8 


1912. 








June 5 


do 


5.10 


44 


Jan. 2a 


CM. Watt 


s 4.83 


13 


10 


do 


4.67 


9.7 


lla 


do.... 


4. 86 


14 


16 


do 


4.63 


5.4 


22" 


do 


4. 85 


11 


27 


do 


4.60 


4.4 


31a 


do.... 


4.85 


11 


July 2 


do 


4.53 


2.2 


Feb. 19a 


do.... 


4. 81 


10 


9 


do 


4.45 


1.3 


22a 


F. C Ebert 


4. 80 


9.6 


14 


do 


4.41 


1.1 


22a 


C M. Watt 


s 4.80 


9.3 


19 


do 


4.40 


.7 


23a 


do.... 


4. 80 


9.4 


24 


.....do 


4.41 


.8 


23a 


F. C Ehcrt 


4.80 


9.2 


29 


do 


4.42 


1.0 


Mar. 3b 


CM. Watt 


s 5.04 


51 


Aug. 4 


do 


4.36 


.5 


4a 


do.-.. 


5. 00 


28 


11 


..:..do 


4.35 


.3 


5<- 


do.... 


6. 55 


492 


16 


F.C Ebert 


4.30 


.4 


Si) 


do.... 


5.39 


105 


17 


CM. Watts 


4.28 


.4 


6c 


do.... 


6.50 


499 


25 


do 


4.23 


.2 


Qa 


do.... 


6. 02 


304 


28 


do 


4.80 


21 


12c 


do.... 


7. 10 


765 


Sept. 6 


do - 


4.31 


.3 


12c 


do.... 


7. 50 


993 


14 


do 


4.25 


.1 


24b 


do 


5. 08 


53 


24 


do 


4.25 


.07 


Apr. 12& 


do.... 


5.57 


167 










20a 


do.... 


5.18 


83 


1914. 








May la 


do.... 


5. 03 


38 


Jan. 7 


F.C. Ebert 


4.80 


13 


13a 


do.... 


4. 95 


29 


7 


W.M.Coffey 


4.80 


13 


24a 


do...- 


4. 88 


26 


8 


do 


4.80 


14 


25a 


do.... 


5.15 


82 


9 


do 


4.78 


13 


June 4a 


do.... 


4. 82 


14 


10 


do 


4. 70 


11 


5a 


do.... 


4. 80 


12 


11 


do 


4.75 


11 


5a 


F. C Ebcrt 


4.80 


10 


12 


do 


4.75 


11 


6a 


do.... 


4. 80 


10 


13 


do 


4.74 


11 


6a 


CM. Watt 


s 4.80 


12 


14 


do 


4.75 


11 


14rf 


do.... 


4. 78 


9.8 


15 


do 


5.28 


66 


24 


do.... 


4. 75 


8.0 


16 


do 


6.52 


405 


July 1<^ 


do.... 


4.70 


4.8 


17 


do 


5.95 


192 


lOo' 


do.... 


4. 68 


2.6 


Feb. 7 


do 


5.90 


238 


22 e 


do.... 


4. 65 


1.4 


8 


do 


5.78 


246 


Aug. 2/ 


.....do.... 


4.64 


1.0 


9 


do 


5.71 


220 


12/ 


do.... 


4. 64 


.7 


9 


do 


5.71 


223 


22/ 


do.... 


4. 64 


.5 


10 


do 


5.66 


218 


Sept. 2/ 


do.... 


4.61 


.4 


11 


do 


5.G1 


203 


12/ 


do.... 

do.... 


4.62 

4. 62 


.4 
.2 


12 
13 


F. C. Ebert 


5.53 
5.49 


174 


22/ 


W.M. Coffey 


169 


Oct. 2 


do.... 


4.62 


.2 


17 


do 


5.33 


135 


11 


do.... 


4. 64 


.3 


Mar. 4 


do 


5.26 


136 


21 


do.... 


4.63 


.3 


12 


do.i 


5.99 


304 


31 


do.... 


4. 64 


.3 


13 


do 


5.90 


277 


Nov. 10 


do.... 


4. 66 


.6 


14 


do 


5.87 


260 


17 


do.... 


4.66 


.8 


15 


do 


5.79 


240 


Dec. 29 


B. H. Hod| 


;son, jr 4. 70 


.9 


16 


do 


5.74 


239 










17 


do 


5.69 


223 


1913. 








18 


do 


5.67 


223 


Jan. 10 


B.H. Hodf 


,son, jr 4.70 


2.3 


19 


do.. 


5.62 


210 


17 


do.... 


5.30 


61 


20 


do 


5.57 


203 


31 


.....do.... 


4.74 


1.8 


27 


do 


5.42 


182 


Feb. 10 


do.... 


4.99 


39 


Apr. 11 


do 


5.13 


108 


20 


do.... 


4.81 


14 


21 


do 


5.02 


89 


24 


do.... 


9. 40 


2,000 


28 


do 


4.94 


71 


24 


do 


9.10 


1,600 


May 4 


do 


4.85 


58 


26 


do.... 


6. 52 


480 


12 


do 


4.74 


49 


27 


do.... 


5.99 


254 




do 


4.72 


48 


28 


do.... 


5.78 


159 


26 


do 


4.66 


42 


Mar. 12 


do.... 


5.23 


70 


June 3 


do 


4.57 


33 


19 


do.... 


5.20 


50 


16 


do 


4.45 


22 


26 


CM. Watt 


s 5.02 


41 


24 


do 


4.41 


18 


Apr. 1 


F. C Ebert 


4.89 


30 


30 


do 


4.34 


13 


2 


CM. Watt 


s 4.89 


32 


July 7 


do 


4.31 


11 


7 


do.... 


4.85 


27 


18 


do 


4.27 


9.9 



a Wading 2,000 feet above g 
b Wading 100 feet below gaj 
c Cable. 



d Wading 1 ,500 feet above gage ; 60 feet above tunnel . 
e Wading 2,503 feet above gage. 
/ In flume 2,500 feet above gage. 



SANTA BARBARA COUNTY. 



517 



Discharge measurements of Santa Ynez River near Santa Barbara, Calif., for 190-3-1904, 
1906, and 1911-1918— Continued. 



Made l3y— 



W. M. Coffey . 

..do 

..do 

..do 

..do 

..do 

....do 

.do 

.do 

F. E. Thompson. 

..do 

..do 

..do 

..do 

..do 

..do 

..do 

..do 

..do 

..do 



F. E. Thompson... 

do 

do 

do 

do 



.do.. 



Gage 
height. 



Fc(t. 
4.18 
4.18 
4.10 
4.10 
4.10 
4.10 
4.14 
4.14 
4.15 
4.46 
4.44 
4.41 
4.40 
4.38 
4.37 
4.37 
4.35 
4.35 
4.33 
4.33 



do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

F, C. Ebert 

F. E. Thompson . 

do 

do 

do 

do 

do 

do 

do.. 

do 

do 

do 

do 

do 

do 

do 

.....do. 

do 

do... 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

do 

R. B. Whitman.. 

do 

do 

do 

do 

do 

do 

do 



5.66 
6.05 
5.88 
5.64 
5.64 
5.64 
5.56 
5.42 
5.64 
5.70 
5.58 
5.49 
5.42 
5.50 
5.45 
5.39 
5.32 
5.30 
5.28 
5.24 
5.21 
5.19 



Dis- 
charge. 



ycc.-fi. 

3.9 
4.3 
1.8 
2.2 
2.0 
1.9 
2.9 
2.7 
2.7 

24 

19 

18 

16 

16 

16 



4.32 


13 


4. 32 


13 


4.32 


13 


4.32 


13 


4.32 


13 


4.32 


12 


4.32 


12 


4.32 


12 


4.38 


16 


4.35 


14 


4.33 


14 


4.33 


13 


4.32 


13 


4.32 


12 


4.32 


12 


4.32 


12 


4.32 


12 


4.31 


12 


4. 30 


10 


4.30 


10 


4.30 


11 


4.30 


10 


4. 30 


11 


4.30 


10 


4. 30 


10 


4.35 


12 


4.35 


13 


4.36 


13 


4.o0 


24 


5.73 


202 


5.50 


190 


5.40 


171 


5.34 


129 


0.18 


120 



334 
503 
428 
356 
341 
350 
294 
276 
350 
373 
325 
309 



282 
283 
262 
237 
229 
210 
218 
203 



1915. 
Mar. 10 



13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
27 
28 
29 
30 
31 
Apr. 21 

1916. 

Jan, 8 

25 

30 

Mar. 14 

Apr. 26 

May 17 

22 

27 

June 15 



July 1 
4 
6 
10 
12 
15 
18 



Aug. 


3 




10 


Sept 


11 


Oct. 


2 




4 




11 




13 




17 


Nov. 


28 


Dec. 


4 



30 

1917. 
Tan. 2 
5 
5 
9 
13 
23 
27 
Feb. 3 
7 
22 
25 



Mar. 



Apr. 



Made by— 



R. B. Whitman.. 

-...do 

....do 



..do.. 
..do.. 
..do.. 



..do.. 
..do.. 
..do.. 



.do...., 
.do.... 
....do.... 
.do.... 



..do.. 
..do.. 
..do.. 



do...., 
....do.... 
E. Pyzel.. 



F. C. Ebert 

Volk and l^ackard 

K.Q. Voile 

Rowc and Hopkins 

Bowen and Hopkins. . . 

B.H.Hopkins 

do 

....do 

....do 

Ebert and Hopkins 

Gilchrest and Hopkins. 

Elmer Gilchrest 

do 

do 

do 

do 

do 

do 

do 

do 

.-..do 

Gilchrest and Ebert 

Elmer Gilchrest 

do 

do 

.....do 

do 

do 

.do., 



Ebert and Gilchrest. . 
Elmer Gilchrest. . 



....do 

....do 

Elmer Gilchrest 

....do 

F. C. Ebert 


2.46 
2.70 

2.82 
2.85 
2.84 
2.66 


Elmer Gilchrest 

0. Packard- . 


....do 

....do 

....do 

F. C. Ebert 


2.74 
2.68 
2.60 
2.58 
4.27 
5.11 
3.36 
3.28 
2.98 
2.90 


Elmer Gilchrest 

....do 

F. C. Ebert... 


....do 

Gilchrest and Trace 

Elmer Gilclirest 



.do... 

.do... 

....do 

....do 

....do 

....do 

do 

do 



height. 



Feet. 
5.15 
5.10 
5.10 
5.08 
5.05 
5.03 
5.01 
5.00 



4.97 
4.95 
4.94 
4.93 
4.89 
5.22 
5.17 
5.00 



4.30 
5.60 
6.45 
4.70 
4.00 
3.78 
3.75 
3.73 
3.54 
3.50 
3.47 
3.47 
3.04 
3.45 
3.41 
3.50 
3.35 
3.35 
3.20 
3.10 
3.05 
2.05 
2.28 
1.84 
2.48 
2.34 
2.44 
2.38 
2.37 
2.68 



2.80 
2.75 
2.66 
2.70 
2.62 
2.60 
2.60 
2.58 



518 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Discharge measurements of Santa Ynez River near Santa Barbara, Calif., for 1903-1904, 
1906, and 1911-1918— GontiTiued. 



Date. 


Made by- 


Gage 
height. 


Dis- 
charge. 


Date. 


Made by- 


height. 


Dis- 
charge. 


1917. 




Feet. 


Sec.-ft. 


1918. 




Feet. 


Sec.-ft. 


Apr. 16 


Elmer Gilchrest 


2.61 


51 


May 31 


F. S. Pinkham 


2.00 


41 


25 


do 


2.55 


33 


June 3 


do 


1.94 


30 


28 


do...- 




2.55 


34 


5 


do 


1.90 


28 


May 3 


do.... 




2.53 


31 


7 


do 


1.88 


26 


7 


do.... 




2.50 


27 


10 


do 


1.84 


24 


11 


do.... 




2.50 


27 


12 


do 


2.68 


21 


17 


do.... 




2.44 


21 


14 


do 


2.66 


18 


21 


do.... 




2.46 


21 


17 


do 


2.68 


21 


26 


do.... 




2.48 


21 


19 


do 


2.64 


20 


29 


do.... 




2.44 


19 


21 


do 


2.64 


18 


June 5 


do.... 




2.40 


15 


24 


do 


2.62 


16 


9 


do.... 




2.38 


11 


26 


do 


2.60 


13 


13 


.....do.... 




2.38 


9.9 


29 


do 


2. CO 


12 


15 


do.... 




2.36 


8.2 


July 1 


do 


2.62 


13 


20 


do.... 




2.80 


3.7 


3 


do 


2.48 


11 


23 


do.... 




2.85 


3.7 


5 


do 


2.47 


10 


27 


F.C.Ebert 




2.6 


8 


do 


2.43 


6.4 


July 14 


Elmer Gilchrest 


"'2.' 64' 


1.5 


10 


do 


2.42 


5.6 








* 


12 


do 


2.42 


5.0 


1918. 








15 


do 


2.40 


4.3 


Jan. 19 


Elmer Gilchrest 


1.98 


1.0 


17 


do 


2.38 


4.3 


26 


do 


2.32 


2.7 


19 


do 


2.38 


4.0 


29 


do.-.. 




2.16 


1.4 


22 


P. Romero 


2.35 


3.9 


Feb. 9 


do.... 




2.18 


1.8 


24 


do 


2.34 


3.5 


12 


do.-.. 




2.10 


1.9 


26 


do 


2.31 


3.8 


18 


do.... 




2.46 


6.2 


29 


do 


2.31 


3.5 


Mar. 11 


Haskell and Browning . 


5.15 


1,730 


31 


F.C.Ebert 


2.32 


2.9 


21 


Haskell and Gilchrest.. 


4.45 


1,070 


31 


P. Romero 


2.33 


3.5 


Apr. 3 


F. S. Pinkham 


3.27 


271 


Aug. 1 


do 


2.31 


2.8 


5 


do 


3.16 


222 


5 


do 


2.30 


2.5 


10 


F.C.Ebert 


3.04 


175 


7 


do 


2.30 


2.5 


12 


F. S. Pinkham. 


2.98 


175 


9 


do 


2.30 


2.3 


15 


do 


2.92 


147 


12 


do 


2.29 


3.0 


17 


do.... 




2.88 


132 


14 


do 


2.30 


2.9 


19 


do..-. 




2.85 


124 


16 


C. Codero 


2.32 


4.3 


22 


do-.-. 




2.80 


110 


19 


do 


2.33 


3.5 


24 


do.... 




2.78 


100 


21 


do 


2.31 


3.3 


26 


do...- 




2.76 


96 


23 


do 


2.31 


3.9 


29 


do.... 




2.74 


89 


26 


do 


2.28 


2.9 


May 1 


do.... 




2.71 


78 


28 


do 


2.26 


2.6 


3 


do 




2.69 


72 


30 


F. CarrilUo 


2.26 


2.3 


6 


do.... 




2^68 


66 


Sept. 2 


do 


2.26 


2.8 


8 


do.... 




2.68 


66 


4 


do 


2.27 


3.1 


10 


do 




2.66 


65 


6 


do 


2.26 


2.3 


13 


do.... 




2.62 


55 


9 


do 


2.26 


3.0 


15 


do.... 




2.61 


54 


11 


do 


2.26 


3.4 


17 


do 




2.60 


51 


13 


do 


2.32 


3.3 


20 


do.... 




2.59 


47 


16 


do 


2.32 


3.4 


22 


do.... 




2.59 


44 


18 


do 


2.30 


3.5 


24 


F.C.Ebert 


2.57 


44 


20 


do 


2.28 


3.2 


27 


F. S. Pinkham 


2.57 


44 


23 


do 


2.28 


3.3 


29 


do 


2.58 


48 


25 


do 


2.28 


3.0 



SANTA BARBARA COUNTY. 



519 



Daily discharge, in second-feet, of Santa Ynez River near Santa Barbara, Calif., for 

1903-1918. 



Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


Date. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


1903.a 
1 


2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 


22 
16 
15 
15 
15 

15 
16 
25 
18 
18 

16 
16 
15 
15 
13 


8 
8 
8 
15 
32 

20 
20 
17 
14 
13 

13 
13 
13 
13 
13 


535 
242 
1.37 
114 

73 

53 
44 
43 

38 

38 
34 
34 
30 
29 


31 

28 
28 
28 
27 

20 
20 
19 
19 
18 

18 
18 
17 
17 
16 


8.7 
8.5 
7.8 
7.1 
7.0 

7.0 
6.0 
6.0 
5.7 
4.9 

4.9 
4.9 
4.9 
5.0 

4.7 


1903. 
16 : 


2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

3 
3 
457 
50 
22 
18 


11 
11 
11 
11 
11 

11 
11 
10 
9 
9 

9 
9 

8 


13 
12 
11 
11 
11 

11 
10 
11 
16 
29 

20 

1? 

18 
93 
111 


175 
136 
95 

86 
79 

74 
67 
54 
44 
43 

40 
35 
35 
33 
32 


15 

15 

15.5 

15.2 

14.4 

13.5 
13.6 
13.4 
13.0 
12.2 

11.9 
11.4 
11.2 
10.7 
10.4 
9.0 


4.4 


2 


17 


4.4 


3. . 


18 


4.4 




19 


4.0 


5 


20 


3 1 


6 


21 




7 


22 




8 


23 




9 


24 




10 


25 




11 


26 




12 


27 




13 


28 




14 


29 




1;") . . . 


30 






31 











Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1904. 
1 




0.6 
.6 
.6 
.6 
10.5 

9.9 
4.5 
4.5 
2.8 
2.3 

.8 
.8 
1.0 
.9 
.9 

18.5 
12.8 
8.3 
7.4 
6.9 

1.6 
1.0 
.9 
1.0 
1.0 

.9 
131 
103 
11.6 


6.9 
3.8 
3.5 
2.6 
2.6 

2.6 
2.3 
2.3 

2.6 

50 

50 

22 

15.5 

11.6 

10.5 

9.4 
7.8 
6.9 
6.4 
6.4 

5.6 
5.6 
445 

70 

45 

30 
23 
22 
25 
22 
18.5 


15.5 
14.1 
12.8 
12.2 
12.2 

9.9 
9.4 

8.8 
8.8 
7.8 

6.9 
6.4 
6.4 
6.4 
6.0 

6.4 
6.4 
6.4 
121 

61 

34 

25 

22 

17.7 

16.2 

18.5 

25 

20 

24 

21 


18.5 

17 

13.5 

14.1 

12.8 

11.9 
9.9 
8.3 

7.8 
7.4 

6.9 
6.4 
6.4 
6.0 
6.4 

4.9 
3.8 
4.5 
3.5 

3.8 

3.5 
3.5 
3.5 
3.1 
4.5 

4.2 
3.5 
2.8 
2.8 
2.6 
2.6 


2.6 
2.3 
1.8 
1.6 
1.6 

1.1 
.9 
.9 
.9 
.6 

.4 
.4 
.5 
.5 
.4 

.4 
.4 
.4 
.4 
.4 

.5 
.5 

.4 
.4 
.4 

.3 
.1 
.1 
.1 
.1 


0.1 
.1 
.1 
.1 
.1 

.1 
.1 

.05 
.05 
.05 

.05 
.05 
.05 
.05 


1 

1 


2 




■ 1 


3 




1 


4 




1 


5 




1 


6 . 




! ■■" 




0.5 
.5 
.5 
.5 

.5 
.5 
.5 
.5 
.5 

.5 
.8 
6.4 
2.1 

.8 

.7 
.8 
.7 
.8 
.6 

.7 
.6 
.6 
.6 
.6 
.6 


j 


8 




9 




10 




11 


I 


12 


1 


13 




14 . 


1 


15 


1 


IG 








17 








18 








19 








20 








21 








22 








23 








21 






103 
5,450 

103 


25 






26 






27 






38 


28 






28 
23 
18 


29 






30..-. 






31 

















a January 1 to June 20, 1903, station was maintained above junction with Mono Creek. 
-Stream dry Nov. 3 to Dec. 20, 1903, and July 15 to Sept. 23, 1904. 



520 SUEFACE WATEK OF PACIFIC SLOPE, SOUTHERlSr CALIFOENIA. 

Daily discharge, in second-feet, of Santa Ynez River near Santa Barbara, Calif., for 
1904-1918— Gontinued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1904-5. 
1 


IG. 4 
13 

11. G 
10 
9.5 

10 

15.7 
17.1 
14.4 
13 

11.1 
9.5 
9.5 

8.5 
7.4 

6.9 
6.4 
6.4 
6.4 
6.4 

6.0 
6.0 
5.7 

5! 7 

5.7 
5.7 
5.7 
5.7 
5.7 
5.7 


6.0 
6.0 
6.0 

G.O 
6.0 
6.0 
6.0 
6.0 

6.0 
6.0 
G.O 
6.4 
G.4 

G.4 
G.4 
6.4 
6.4 
7.4 

7.4 
6.9 
6.9 
6.9 
6.9 

6.9 
6.9 
6.9 
6.4 
6.4 

1 
1 
1 
1 
1 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 

2 
2 
2 

2 
2 
2 
2 
2 

2 
2 
2 
2 
2 

3 
5 
5 
5 

4 


6.4 
6.4 
6.9 
6.9 
6.9 

6.4 
6.9 
6.4 
G.9 
6.9 

6.9 
6.9 
6.9 

6.4 

6.4 

G.4 
6.9 
G.9 
6.9 
6.9 

6.9 
6.9 
6.9 
6.9 
6.9 

6.9 
6.9 
6.9 
6.9 
6.9 
13 

4 
4 
4 
4 
4 

4 
4 
4 
4 
4 

4 
4 
4 
4 
4 

4 
4 
4 
4 
4 


11. G 
11.6 

9 

9 

9 

9 

G.4 
401 
353 
38 

33 

28 

23 

18.5 

23 

28 

23 

18.5 

18.5 

18.5 

635 
140 

82 

65 

58 

44 
44 
38 
38 

28 
28 

3 
3 

4.5 
4.5 

4.5 

4.5 
4.5 
4.5 
4.5 
4.5 

4.5 

6 

9 
17 
17 

17 
17 
17 
104 
49 

28 
22 
22 
17 
17 

12 
9 
9 
9 
9 
9.0 


28 

306 

6,550 

4,230 

710 

635 
530 
495 
462 

462 

430 
430 
430 
400 
315 

1,120 

3,868 

710 

530 

495 

462 
370 
315 
265 
220 

202 

184 
184 

9 

6 
6 
6 
6 

12 
12 
12 
9 
22 

65 
35 
12 
35 
171 

49 
35 
28 
22 
22 

35 
35 
22 
22 

22 

22 
17 
17 


184 
168 
153 
153 

168 

184 
153 
125 
125 
112 

125 
1,395 
7,275 
2,580 
1,340 

2,120 

1,340 

1,065 

832 

710 

565 
530 
462 
430 
400 

370 
315 
315 
430 
315 
265 

17 
17 
17 
104 
49 

35 

28 
22 
22 
22 

22 

3,650 

3,070 

495 

71 

4,810 
875 
462 
290 
204 

186 

156 

600 

3,940 

4,158 

4,665 

1,630 

1,065 

710 

565 
495 


242 
242 
220 
202 
202 

184 
184 
168 
168 
168 

153 
168 
153 
139 
139 

125 
125 
125 
112 
112 

112 
100 
100 
100 
90 

90 
112 
90 

79 
, 79 

430 
400 
370 
315 
265 

265 
223 

186 
186 
171 

171 
156 
156 

129 
104 

104 
104- 
94 
94 
83 

83 
83 
83 
83 
74 

74 
65 
65 
65 
65 


70 
79 
70 
60 
GO 

60 
60 
60 
60 
GO 

60 
60 
52 
52 
52 

52 
52 
44 
44 
44 

44 
44 
44 
44 
37 

37 

37 
37 
37 
37 
37 

57 
49 
49 
49 
49 

42 
42 

42 

42 

35 
35 
35 
35 
35 

35 
35 
28 

28 
28 

28 
28 
28 
28 
28 

49 
204 
635 
129 
83 
57 


30 
30 
30 
30 
30 

30 
30 
30 
24 
24 

24 
19 
19 
14 
14 

10 
10 
10 
7.5 

7.5 

7.5 

5 

5 

5 

5 

5 
5 
5 
5 
5 

49 
49 
42 
42 
35 

35 
35 

28 
28 
28 

22 

22 
22 
22 
22 

22 
17 
17 
17 
17 

17 
17 
17 
17 
17 

12 
12 
12 
12 
12 


3 
3 
3 
3 
3 
3 

12' 

12 

12 

9 

9 

9 
6 
6 
6 
6 

6 
6 
6 
6 
6 

6 
6 
6 
6 
4.5 

4.5 

4.5 

3 

3 

3 

3 
3 

2.5 
2.5 

2.5 
2.5 


3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2 

2 

2 
2 
2 
2 
2 
2 

2.5 
2.5 
2.0 
2.0 
2.0 

2.0 
2.0 
2.0 
2.0 
1.5 

1.5 
1.5 
1.0 
1.5 
1.5 

■ 1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 

1.0 
1.0 
1.0 
1.0 
1.0 
1.0 


2 


2 


2 


3 . . 


1 5 


4 


1.5 


5 


1 5 


G . . 


1 5 


7 


1 5 


K 


1 5 


9 


1 5 


10 


1 5 


11 


1.5 


12 


1 5 


13 


1.5 


14 


1 5 


15 


1.5 


16 


1.5 


17 


1 5 


18 


1 5 


19. 


1 5 


20 . . 


1 5 


21 


1 5 


22 


1.5 


23 


1 


24 


1 


25 


1 


26 


1 


27 


1 


28 


1 


29 


1 


30 


1 


31 




190&-6. 
1 




2 




3 




4 




5 




6 




7 




8 




9 




10 




11 




12 




13 




14 




15 . 




16 




17 ' 




18 




19 




20 




21 




22 




23 




24 




25 




26. 




27 




28 




29 




30 




31 





SANTA BAEBARA COUNTY, 



521 



Daily discharge, in second-feet, of Santa Ynez River near Santa Barbara, Calif., for 
1904-1918— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


190G-7. 
1 




1 

1 

1 

1 

1 

1 

1.5 

1.5 

1.5 

1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
1.5 
2.5 
2 


2 

2 

2 

2 

2 

2 

2 

2 

2.5 

(3 

17 
600 
49 
35 
22 

12 
12 

9 

6 

6 

G 

4.5 
4.5 
4.5 
4.5 
65 
290 
104 
94 
94 
156 


49 

49 

49 

49 

49 

83 

430 

7,8.55 

9,4.50 

4,520 

2,790 

1,750 

1,175 

790 

970 

875 
2,055 
970 
970 
970 
970 
970 
970 
970 
970 

970 
970 

875 
790 
710 
400 


430 
400 
710 
920 

875 

875 
830 
790 
670 
635 
600 
565 
530 
495 
530 

565 
565 
400 
223 
142 

142 
495 
370 
265 
223 

186 
142 
142 


129 

116 

104 

8,145 

5,970 

4,520 

1,990 

790 

750 

710 

710 
530 
495 
460 
460 
430 
400 
370 
5,172 
3,505 

2,8G0 
2,380 
2,120 
1,750 
4,520 

2,315 
1,395 
1,285 
1,065 
970 
875 


670 
600 
555 
462 
430 
370 
430 
315 
290 
265 

265 
244 
204 
180 
171 
156 
142 
142 
142 
129 

129 
116 
104 
104 
93 

83 
S3 
74 
74 
65 








i 


2 










3 










4 










5 . . 










G 










7 






■ 1 """1 


8 


ill' 


9 


' 


10 




11 




12 . . 




13 


1 j 


14 . ... 


1 


15 


1 


10 






17 






18 






19 




1 




20 










21 










22 










23 










24 










25 










2G 










27 










28 






"■" 




29 ... 










30 










31 ... 






i 1 












1 



Day. 



1907-8. 

1 

2 , 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 



Oct. 


Nov. 


Dec. 


Jan. 




4 


2 


2.5 




4 


2 


2.5 




3 


2 


2.5 




3 


2 


2.5 




3 


2 


2.5 




3 


2 


2.5 




3 


2 


2.5 




3 


2 


2.5 




3 


22 


2.5 




3 


15 


2.5 




3 


9 


2.5 




3 


9 


2.5 




3 


9 


2.5 




3 


8 


10 




3 


8 


7 



Day. 



1907-8, 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



00. 


Nov. 


Dec. 


1 


2.5 


7 


1 


2.5 


6 


1 


2.5 


6 


1 


2.5 


6 


1 




6 


1 


2.5 


5 


1 


2.5 


5 


2 


2.5 


5 


3 


2.5 


5 


3 


2.5 


4.5 


22 


2 


4.5 


315 


2 


4.5 


35 


2 


3 


25 


2 


3 


12 


2 


3 


8 




' 



5 

4 

4 

3,650 

1,750 
1,750 
710 
156 
100 
67 



Day. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1911. 
1 




377 
366 
360 
a 350 
339 
329 
309 
283 
271 
258 
249 
243 
229 
223 
215 


137 
a 132 
126 
123 
119 
115 
110 
110 
104 
100 

100 
98 
98 
94 
92 


62 
o61 
60 
59 
56 

56 
54 
52 
51 
49 

48 
a 46 
44 
43 
43 


27 

26 

c25 

a 25 

24 

24 
22 
21 
21 
21 

19 
19 
18 
18 
17 


8 

7 

7 

«7 

fl8 

8 
8 
8 
8 
8 

9 
9 

8 
8 
8 




2 . 




3.... 




4. . 




5 




6 




7 




8 




9... 




10.... 




11. . 




12.... 




13 




14 . 




15.... 


1,350 



Day. 



1911. 
16.... 1,230 
17.... 1,160 
,120 



19... 
20... 
21... 
22... 
23... 
24... 
25... 
26... 
27..., 
28..., 
29.... 
30.... 
31.... 



1,050 



Apr. 


May. 


June. 


July. 


Aug. 


209 


90 


44 


15 


7 


201 


88 


43 


«15 


7 


192 


84 


42 


15 


7 


187 


82 


38 


14 


7 


177 


80 


37 


14 


6 


172 


78 


37 


14 


6 


169 


73 


36 


14 


6 


166 


73 


36 


14 


6 


164 


69 


38 


14 


6 


159 


69 


34 


13 


5 


154 


69 


32 


11 


6 


156 


67 


32 


10 


6 


146 


64 


32 


9 


5 1 


144 


64 


31 


9 


5 


139 


62 


28 


8 


4 i 




62 




8 


4 



Sept. 



i Gage not read; discharge interpolated. 



522 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Daily discharge, in second-feet, of Santa Ynez River near Santa Barbara, Calif, for 
1904-1918— QoiituiMQdi. 



12.. 
13.. 



16.. 
17.. 
18.. 
19.. 
20.. 



Oct. Nov. Dec. Jan. Feb. Mar. Apr. May. June. 



23.. 
24.. 
25.. 

26.. 
27.. 
28.. 
29.. 
30.. 
31.. 



13 
13 
13 
13 
13 



16 

3 16 



16 
16 



15 
15 



15 
15 



16 
15 
15 
15 



15 

15 

a 15 



13 
13 
13 
13 
12 



12 
12 
12 
12 



12 
11 
11 



10 
10 
10 



106 
95 
106 
225 



290 
195 
142 

113 
95 
74 

a 74 
73 



34 

31 

31 

113 

195 
158 
118 
100 
82 



21 

34 

a 34 



10 
9.2 

8.5 
7.8 
7.8 
7.8 



5.7 
5.7 
7.8 
7.8 
7.1 

5.7 
5.7 
5.0 
5.0 
5.0 



July. Aug. Sept. 



4.4 

4.4 
04.4 
4.4 

4.4 

4.4 
4.4 
3.8 
3.8 
3.8 

3.2 
3.2 
2.6 
2.6 
2.6 



al.8 
al.7 
1.6 

1.5 
1.5 
1.5 
1.5 
1.5 

1.5 
1.5 
1.5 
1.5 
1.0 
1.0 



0.4 
.4 
.4 

.4 
.4 

.4 
.4 
.4 
.4 
.4 



.4 
.4 
.4 

a. 3 
0.3 
a. 3 



.2 
.2 
.2 
.2 
.2 

.2 
.2 
.2 
.2 
.2 



Note, — Daily discharge determined from the fairly well defined rating curves applicable as follows: 
Mar. 15 to Dec. 31, 1911, Jan. 1 to Apr. 30, 1912, and May 1 to Aug. 1, 1912. Discharge interpolated between 
measurements Aug. 2 to Sept. 30, 1912. Discharge interpolated on days for which there is no gage-height 
record. 



1912-13. 



7.. 
8.. 
9.. 
10.. 

11.. 
12.. 
13.. 
14.. 
15.. 

16.. 
17.. 
18.. 
19.. 
20.. 
21.. 
22.. 
23.. 



27.. 
28.. 
29.. 
30.. 
31.. 



.4 

.4 

&.4 

?>.4 



^.6 

&.6 

.6 



6.7 
6.7 

6.7 
6.7 
6.7 
6.7 
6.7 



6.9 
6.9 
6.9 
6.9 



1.0 
1.0 
1.0 



1.0 
1.0 



.7 
.5 
1.0 
1.0 
1.0 
1.0 
1.0 
6 1.0 



62 
6 20 
6 10 

66 

44 
4 



2.4 
2.4 



1.4 
1.4 
1.4 



36 
24 
24 
22 
22 
21 
20 
17 
15 
15 

16 
24 
24 
1,780 
930 

455 
310 
210 



152 
126 
102 
102 
114 
114 
109 
102 
82 
6 80 

6 78 
76 
53 
53 

210 



102 
66 



13 
12 
6 11 
10 
10 



7.5 
7.0 
7.0 
7.0 

44 

17 

10 
8.2 
8.2 
8.2 

8.2 
7.6 
7.0 
6.5 
6 6.2 

6.0 
6.0 
6.0 
5.5 
4.5 

4.5 
4.5 
3.9 
3.6 
3.0 

3.0 
4.5 
4.5 
3.9 
3.6 



3.0 


.8 




I. 


2.6 


.6 






2.4 


.6 






6 2.2 


.5 




, 


6 2.0 


.5 






6 1.8 


.5 






1.6 


.4 






1.3 


.4 






1.3 


.4 






1.0 


6.4 


b 




.9 


.4 






.9 


.4 






.8 


.4 






.9 


.4 




. 


1.0 


.3 






1.0 


.3 






.9 


.3 






.8 


.3 




. 


.8 


.3 




. 


.8 


.3 




. 


1.1 


.3 




>. 


.9 


.3 




. 


.9 


.3 




. 


.9 


6.2 




. 


.9 


.2 




. 


.9 


.2 




. 


6.9 


.2 




. 


.9 


23 




. 


1.0 


4.0 




. 


1.0 


3.4 




. 


1.0 


2.5 







a Gage not read; discharge interpolated. 

6 Gage not read; discharge interpolated except for Jan. 14-16 and 18-20. 
Note.— Daily discharge determined as follows: Oct. 1, 1912, to Feb. 8, Feb. 9 to 24, Feb. 25 to 
Apr.27to May 15, June 5 to Aug. 27, and Aug. 28 to Sept. 13, from fairly well defined rating curves, 
to 26 and May 16 to June 4, by indirect method for shifting control: Jan. 14 to 16 and 18 to 20, 
which intervals a rise occurred, by comparison with records of Ventura River near Nordhofif. 



Apr. 7, 
Apr. 8 
during 



SANTA BARBARA COUNTY. 



523 



Daily discharge, in second-feet, of Santa Ynez River near Santa Barbara, Calif., for 
1904-1918— QonihmQd. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1913-14. 


0.1 


0.1 

345* 
45 
8 

4 
2 

8 

78 
9 

5 
5 

4 
4 

4 

4 
4 
4 
4 
3 


3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

3 
3 
3 
3 
3 

3 
3 
3 

4 
4 

4 
11 
17 
11 
14 

8 
7 
6 
6 
53 
47 


31 
22 
19 
16 
16 

15 
15 
14 
13 
12 

11 
11 
10 
10 
60 

322 
165 
2,850 
770 
590 

450 
390 
370 
680 
8,500 

3,030 
2,360 
1,660 
1,120 
630 
550 


490 
431 
375 
340 
324 

279 
261 
330 
330 
217 

204 
188 
176 
176 
157 

155 

139 

2,360 

1,060 

8,350 

4,750 
1,600 
1,600 
1,160 
1,020 

915 
780 
690 


650 
610 
570 
530 
490 

450 
412 
375 
357 
340 

340 
302 
285 
271 
250 

243 
227 
222 
207 
195 

190 
178 
173 
166 
160 

155 

157 
151 
200 
178 
157 


147 
135 
127 
126 
131 

120 
116 
114 
111 
111 

104 
98 
96 
94 
93 

88 
87 
84 
81 

78 

87 
93 
84 
84 
81 

78 
76 
76 
73 
71 


71 
76 
67 
64 
62 

57 
57 
55 
55 
53 

52 
50 
50 
50 
50 

48 
48 
47 
46 
44 

42 
41 
40 
41 
42 

42 
39 
38 
37 
36 
36 


34 
33 
33 
33 
32 

31 
32 
32 
31 

28 

26 
26 
24 
23 
22 

22 

22 
22 
22 

21 

20 
20 
20 
19 

18 

17 
17 
15 
14 
14 


14 
13 
13 

12 
12 

12 
11 
11 
11 
11 

11 
11 
11 
11 
11 

10 
10 
10 

8.5 

9 

8 

7.5 

7.5 

7.5 

6.5 

6 

6 

5.5 

6 

6 

6 


5 
5 
5 
5 
5 

5 

5 
4 
4 
4 

4 

4 

3.5 

4.5 

3.5 

3.5 

3 

3 

3 

2.5 

3 

2.5 

2.5 

• 2.5 

2.5 

2.5 

2.5 

2 

2 

2 

2 


2 


2 


2 


3 


2 


4 


2 


5 


2 


6 


2 


7 


2 


8 


2.5 


9 


2 


10 


2 


11 


2 


12 


2 


13 


2.5 


14 


2 


15 


2 


16 


2 


17 


2 


18 


2 


19 


2 


20 


2 


21 


2 


22 


2 


23 


2 


24 


2 


25 


2 


26 


2 


27 


2 


28 


2 


29 


2 


30 


2 


31 .... 









Note. — Discharge determined from two fairly well defined rating curves. 



Day. 


Oct. 


Nov. , Dec. 


Jan. 


Feb. 


Mar. 


Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


. 191^15. 
1 


2 
2 
2 
2 
2 

2 

2 
2 
2.5 

2 
2 
2 
2 

2 


3 
3 
3 
3 
3 

3 

3 

2.5 

2.5 

2.5 

2.5 
2.5 
2.5 
2.5 
2.5 


15 
9.5 
7.5 
9 
9 

9.5 
9 
8 

8.5 
14 

28 
35 
31 
16 
14 


13 
13 
13 
13 
13 

12 
12 
12 
16 
14 

14 
13 
13 
12 
12 


190 

1,560 
520 
325 
171 

129 

114 

113 

2,360 

1,130 

900 
710 
570 
455 
370 


309 

282 
283 
262 

287 

229 
210 
218 
203 
185 

183 
178 
164 
159 
152 


1914-15. 
16 


2 

2 

2.5 

2.5 

2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 

2.5 

2.5 

2.5 

3 

3 


2.5 
2.5 

2.5 
2.5 
2.5 

2.5 
2.5 
2.5 
2.5 
2.5 

2.5 
2.5 

4 
3 
2.5 


12 

46 
28 
28 
26 

24 
19 
18 
16 
16 

16 
15 
14 
14 
13 
13 


12 
12 
12 
10 
11 

10 
11 
10 
10 
12 

13 
13 
36 
1,020 
395 
207 


320 
570 
428 
356 
341 

350 
294 
276 
360 
373 

325 
309 
30i 


145 


2 


17 


130 


3 


18 


123 


4 


19 


120 


5 


20 


117 


6 


21 


117 


7 


22 


112 


8 


23 


106 


9 


24 


104 


10 


25 


102 


11 


26 


100 


12 


27... 


97 


13 


28 


190 


14 


29 '.. 


187 


15 


30 


133 




31 


117 









524 SUEFACE WATEE OF PACIFIC SLOPE, SOUTHEEN CALIFOENIA. 

Daily discharge, in second-feet, of Santa Ynez River near Santa Barbara, Calif., for 
1904-1918— Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1915-16. 
1 










380 
350 
325 
325 
325 




340 






22 
22 
21 
20 

18 

17 
16 
15 
14 
12 

11 
11 
10 
10 
9.9 

9.9 
9.9 
9.3 

8.8 
8.3 

7.8 
7.8 
7.8 
7.8 
7.4 

7.0 
6.6 
6.6 
6.6 
6.2 

15 
15 
15 
15 
15 

14 
13 
12 
11 
11 

10 
10 

1 

7 

6 

5 

4.0 

3.7 

3.7 
3.7 
3.7 
3.4 
3.1 

2.8 
2.6 
2.4 
2.2 
2.0 


6.2 
6.2 
6.2 
6.2 

5.8 

5.8 
4.2 
4.2 
3.9 
2.4 

2.4 
2.3 
2.3 
2.1 
2.1 

2.1 
2.1 
2.1 
2.0 

2.0 

1.9 
1.9 
1.8 
1.8 
1.6 

1.6 
1.6 
1.6 
1.6 
1.6 
1.6 

1.9 
1.9 
1.8 
1.8 

1.8 

1.7 
1.7 
1.7 
1.6 
1.6 

1.6 
1.5 
1.5 
1.5 
1.4 

1.3 
1.2 
1.1 

!9 

1.1 
1.0 
1.0 
1.0 
1.0 

.9 
.9 
1.0 
1.0 
1.0 
.8 


1.7 
1.8 
1.4 
1.4 
1.5 

1.5 
1.4 
1.1 
1.3 
1.3 

1.2 

.9 

.8 
.7 
.9 

1.5 
1.6 
1.6 
1.6 

1.6 

.4 
.8 
.2 
1.0 
1.5 

.7 
.6 
.4 
.2 
.1 
.1 

.9 

.8 
.8 
.7 

.7 

.7 
.6 
.5 
.5 
.5 

.5 
.5 
.5 

.6 
.5 

.^ 
.5 
.5 
.5 
.5 

.6 
.5 
.5 
.5 

.5 

.5 
.5 
.5 

.4 
.4 
.4 


0.6 


2 












.9 


3 








310 
300 






.1 


4 


j 




GOO 






.1 












.3 


6 






240 


255 






.05 


7 










.1 


8 






49 








.3 


9::: :::::;:::::;: 




295 


200 






.00 


10.. ■ - ' 


1 






.05 


11 


I 


2S5 


187 






.2 


12 1 1 




.1 


13 ' 1 i 




176 
176 
1G4 




.05 


H i . ' 


230 


1 


.2 


15 ' ! 1 




.00 


i i ! 

16 1 




205 






.00 


17 ' 




153 




21 
22 
29 
28 

28 
26 
26 
26 
26 

26 
24 
24 
24 
24 
22 

32 
32 
32 
32 
29 

27 
27 
27 
27 
27 

27 
26 
24 
23 
20 

18 
18 
21 
21 
21 

21 
18 
21 
23 
23 

24 
20 
21 
18 
17 
16 


.05 


18 




2,7S0 


195 


.00 


19 










.2 


20 












.05 


21 






195 
176 
153 


215 
183 




.05 


22. 






.00 


23 




410 
395 
395 

1,280 
2,940 
1,120 
1,070 
665 
520 

147 
122 
215 
173 
126 

107 
93 
76 
74 
71 

71 
95 
215 
96 

83 

77 
62 
77 
194 
198 

149 
128 
110 
99 
92 

86 

86 
80 

74 
CS 


.1 


24 




49 


155 




.00 


25 






.00 


26 










45 


.05 


27 










130 


.5 


28 






10 


.1 


29 






325 


116 




.1 


30 






31 
10 

15 
60 
30 
26 
15 

10 
10 
10 
10 
10 

9 
9 
9 
9 

9 
9 

9 
9 
9 

9 
9 

30 

2, 500 

375 

150 
104 
93 
100 
76 
73 


1.9 


31 






65 
62 
62 
57 
53 

49 
45 
43 
43 
43 

43 
43 
43 
41 
41 

38 
38 
38 
45 
486 

981 

1,720 

524 

472 

1,730 

712 
486 
398 


110 

329 

278 
240 
225 
200 

186 
173 
160 
164 
147 

134 
126 
118 
114 
107 

100 
93 
93 
93 
93 

90 

87 
84 
81 
78 

75 
72 
70 
70 
67 
67 


64 
62 
59 
56 
56 

56 
50 
50 
50 

48 

45 

45 
43 
43 

45 

50 
45 
45 
45 
45 

41 

41 
38 
38 
38 

36 
38 
38 
36 
34 




1916-17. 
1. 


5 
18 
12 

5 

6 
5 

5 
10 
25 

14 
10 

6 
6 

5 

4 
4 

4 
4 
4 
4 
4 

3 
3 
3 
3 
3 
3 






■"7." 5" 




.4 


2 


.4 


3 


.3 


4 


.3 


5 


.3 


6 

7 

8 

9 

10 

11 


.3 
.3 
.3 
.3 
.3 

.3 


12 


.3 


13 

14 


.3 
.3 


15 


.2 


16 


.2 


17 


.2 


18 


.2 


19.... 

20... 


.2 

.2 


21 


.2 


22 




23 


.2 


24 


.2 


25 


.2 


26 


.2 


27 


.2 


28 


.2 


29 


.2 


30 


2 


31 





Note.— Water-stage recorder not in operation Doc. 25-26 and Mar. 21-27; discharge intei-polated. 



SANTA BARBAEA COUNTY. 



525 



Daily discharge, in second-fret, cf Santa 
1904-1918- 



Ynez River near Santa Barbara, Calif., for 
—Continued. 



Day. 


Oct.. Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


191S. 
1 








17 
17 
18 
16 
16 

19 

23 

18 
16 

14 
15 
15 
15 
15 

15 
30 
70 
70 
8S0 

4,810 

2,750 

645 

455 

575 

425 
325 
257 


201 
190 
173 
166 

187 

455 
2, 750 
1,300 

880 
1,900 

2,010 

2,010 

1,300 

720 

515 

455 
395 
720 

4,280 
1,790 

1,120 

880 
720 
645 
575 

515 
485 
425 
395 
335 
325 


310 
295 
277 
257 
234 

223 
208 
194 
190 
184 

173 
166 
162 
156 
145 

135 
132 

129 
122 
119 

116 
107 
101 

98 
95 

95 
95 
95 
92 
86 


80 
74 
72 
72 
66 

72 
69 
72 
66 
66 

64 
61 
58 
53 
50 

53 
50 
50 
50 

48 

45 
45 
45 
45 

45 

45 
45 
45 
50 
45 
45 


36 
33 
30 
29 

28 

27 
26 

25 
24 
24 

22 
21 
19 
18 
17 

16 
21 
20 
20 
19 

18 
18 
15 
16 
14 

13 
14 
13 
12 
12 


12 
11 
11 
11 
10 

9 

8 

6.5 

5.5 

5.5 

5 

4.3 
4.3 

4.3 
4.3 
4.0 
4.0 
4.0 

3.9 
3.9 
3.8 
3.5 
3.6 

3.8 
3.7 
3.6 
3.5 
3.2 
2.9 


3.5 
3.0 

2.8 
2.5 
2.5 

2.5 
2.5 
2.4 
2.3 

2.5 

2.8 
3.0 
3.0 
2.9 
2.9 

4.3 
3.5 
3.5 
3.5 
3.4 

3.3 
3.6 
3.9 
3.6 
3.2 

2.9 
2.8 
2.6 
2.4 
2.3 
2.4 


2.6 


2 




2..8 


3 


3.0 


4 '' "' "■ ' 1 1 


3.1 


5 1 1 


2.7 


(■> 


i 


2.3 




1 ! 


2.6 




1 1 


2.8 


9 ' 


... 1 .. , . 


3.0 


10 ' 


1 




3.2 


11 ' i . 




3.4 


12 




3.2 


13 ' ..' 




3.0 


14 i 1 






3.2 


15 . 








3.4 


le 










3.4 


17 








3.4 


18 








3.5 


19 . 







1.0 
.9 

1.0 
1.0 
1.2 
1.2 
2.4 

3.0 
2.0 
1.7 
1.8 
1.8 
1.8 


3.4 


20 







3.2 


21 








3.2 


22 









3.3 


23 









3.3 


24 








3.2 


2.5 








3.0 


26 .. . 








3.0 


27 








38 


28 








20 


29^ 




1 


13 


30 




i 


8 


31.. 




1 








1 





Monthly discharge of Santa Ynez River above Mono Creelc, near Santa Barbara, Calif., for 

1903. 

[Drainage area, 71 square miles.] 





■ Discharge in second-feet. 


Month. 


Maximum. 


Mim'mum. 


Mean. 


Run-off 
(total in 
acre-feet). 




457 
25 
111 
535 
31 
9 


2 
8 
8 
29 
9 
3 


19 
14 
20 

84 
17 
6 


1,168 


February 


778 


March 

April 

May 

June 1-20 


1,230 

4,998 

1,045 

238 






The period . . 








<') 460 











526 SUKFACE WATER OF PACIFIC SLOPE, SOUTHERI^ CALIFORNIA. 

Monthly discharge of Santa Ynez River near Santa Barbara, Calif ., for 1904-1918. 



Discharge in second-feet. 



Maxi- 
mum. 



Mini- 
mum. 



Run-off 
(total 



acre- 
feet). 



Discharge in second-feet. 



Maxi- 
mum. 



Mini- 
mum. 



1904. 
January, 7-31 . 

February 

March 

April 

May 

Jime 

July 

August 

September 

The period. 

1904-5. 

October 

November 

December 

January 

February 

March 

April 

May.. 

Jime 

July 

August 

September 

The year... 

1905-8. 

October 

November 

December 

January 

February 

March 

April 

May 

June — 

July 

August 

September — 

The year... 

1906-7. 

October 

November... 
December... 

January 

February — 

March 

April 



6.4 
132 
446 
121 
18.5 
5.0 
.1 
.0 



17.1 

7.4 

13 

635 

6,550 

7,275 

242 



1 

5 

4 

104 

171 

4,810 

430 

635 

49 

12 

2.5 



1 

2.1 
600 
,450 
920 
,150 
670 



The period 
1907-8. 

October 

November — 
December — 
January 



315 
4 



The period 
1911-12. 

October 

November 

December 

January 

February 

March 

April 

May , 

June 

July 

August 

September.. 

The year.. 



6.0 
2.6 
.1 



0.9 
12 
30.6 



.7 

.034 

.0 



1, 137 

424 

42 

2 



11,425 



112 
79 
37 
5 
3 
2 



6.4 
7.0 
73.9 
905 
797 
143 
51.2 
15.9 
3.8 
2.6 
1.4 



541 

381 

430 

4,544 

50, 260 

49,010 

8,509 

3,14a 

946 

234 

160 



163 



65 

28 

12 
2.5 
1.0 
1 



1.0 
2.1 
4.0 
14.9 
27.4 
1,050 
158 
67.4 
23.9 
5.8 
1.4 



61 

125 

246 

916 

1,520 

64,600 

9,400 

4,140 

1,420 

357 

86 

60 



82,900 



142 
104 



1.4 

52.2 

1,470 

490 

1,520 

237 



61 
83 
3,210 
90,400 
27, 200 
93,500 
14, 100 



229, 000 



14.4 
2.7 
56 

267 



161 

344 

16,400 



17.800 



12 
18 
19 
15 



16 
4.4 
1.0 
.4 



12 

13 

10 

10 

31 

16 
5.0 
1.0 
.4 
.2 



5.8 

10.4 

13.2 

14.9 

11.9 

117 

65.7 

27.5 

9.30 

2.61 

.65 

.31 



357 

619 

812 

916 

684 
7,190 
3,910 
1,690 

553 

160 
40.0 
18.4 



1912-13. 

October 

November. . 

December 

January 

February 

March.. 

April 

May 

Jtme 

July 

August 

September... 

The year . . 

1913-14. 

October 

November. . . 
December... 

January 

February 

March 

April 



,780 
210 
32 
18 
44 
3.0 
23 
1.0 



0.2 
.4 
.6 
.5 

1.4 
30 
19 

7.8 

3.0 
.8 
.2 
.1 



0.33 

.55 

.80 

8.18 

157 

77.4 

26.1 

12.5 

7.55 

1.24 

1.39 

.26 



June 

July 

August 

September 

The year . . . 

1914-15. 

October 

November 

December 

January 

February 

March 



.1 
345 
53 
,500 
8,350 
650 
147 
76 
34 
14 
5.0 
2.5 



10 
139 
151 
71 
36 
14 
5.5 
2.0 
2.0 



.10 
18.0 
7.9 
797 
1,030 
296 
98.1 
49.5 
24.1 
9.52 
3.47 
2.03 



!.500 



190 



46 

1,020 

2,360 

309 



2.5 
7.5 



113 

97 



17.5 
64.2 
508 



The period. 

1915-16. 

June 

July 

August 

September 

The period. 



1916-17. 

October 

November. . 
December.. 

January 

February. . . 

March 

April 

May 

June 

July 

August 

September.. 



22 
6.2 
1.8 
1.9 



6.2 
1.6 

.1 

.00 



11.6 
2.9 



25 



2,500 
215 
1,730 
329 
64 
32 



62 

38 

67 

34 

16 
2.0 
.8 
.4 



6.5 
6.0 
123 
110 
300 
129 
46.0 
23.6 
7.94 
1.33 
.55 
.25 



23.4 



16,900 



The year... 

1917-18. 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The period. 



2,500 



3.0 

4,810 

4,280 

310 

80 

36 

12 

4.3 

38 



0.9 
1.4 



45 

12 
2.9 
2.3 
2.3 



1.60 
395 
930 
160 
56.3 
20.7 
5.58 
2.98 
5.31 



SANTA BARBARA COUlsTTY. 



527 



SANTA YNEZ RIVER NEAR LOMPOC, CALIF. 

Location. — Near east boundary of La Mision Vieja de la Purisima grant, at highway 
bridge, about 1| miles east of Lompoc, Santa Barbara County. 

Drainage area. — 725 square miles (measured on topographic maps). 

Elevation.— About 100 feet above sea level. 

Eecords available. — November 10, 1906, to January 9, 1907, and September 25, 
1907, to September 30, 1918. (Discharge not computed for 1909.) 

Gage. — Vertical staff fastened to pier at right end of center span of bridge near down- 
stream end. Datum lowered 1.00 foot June 27, 1907. 

Discharged measurements. — Made from bridge at gage or by wading. 

Channel and control. — Bed composed of sand; shifting. Banks high and not 
subject to overflow. 

Extremes of discharge. — 1906-1918: Maximum stage recorded, 13.0 feet January 
25, 1914 (discharge, 41,800 second-feet); minimum discharge, 5 second-feet 
October 13 to 21, 1913. 

Diversions. — Except for a small quantity diverted by the city of Santa Barbara at 
Gibraltar dam, water is not diverted above the station, but some water is pumped 
for irrigation from wells aloilg the banks of the river. 

Regulation. — None. - 

Accuracy. — Stage-discharge relation not permanent. Rating curves usually fairly well 
defined for low and medium stages. Gage read to half-tenths, sometimes to hun- 
dredths, once a day, more frequently during floods. Daily discharge ascertained 
by applying mean daily gage height to rating tables, by shifting-control method, 
or interpolating between discharge measurements. Records fair for periods when 
frequent discharge measurements were obtained ; poor for other periods. 

Discharge measurements of Santa Ynez River near Lompoc, Calif., for 1906-1918. 



1906. 

Nov. 10 
Dec. 12 

1907. 
Sept. 24 



Jan. 28 

29 

Mar. 10 



191&: 
Jan. 30 
Mar. 5 
Apr. 15 
Mav 4 
27 
June 9 
9 
Aug. 4 
Sept. 14 

1911. 

Feb. 27 

Mar. 2 

22 

Apr. 11 



Made by- 



R. S. Hawley.. 
L.M.Hyde... 



Clapp and Hyde . 



L.M.Hyde... 

do 

W. F. Martin. 



McDonald and Hyde 

do 

....do 

do 

do 

do 

do 

do 

McDonald and Dyer. . . 

Donald McDonald and 

H.M. McDonald.... 



W.B. Clapp.. 
J. E. Stewart.. 
D. McDonald. 

do 

do 

J. E. Stewart.. 

do 

D. McDonald. 
C.C.Jacob.... 



W.V.Hardy 

Donald McDonald . 

do 

do 



Gage 
height. 



Feet. 
5.02 
5.88 



4.80 
3.85 
3.28 



4.25 
4.15 
3.85 
4.35 
6.65 
6.9 
8.15 
8.5 
6.25 

5.95 

4.10 
3.84 
4.00 



4.85 
6.50 
2.80 
2.90 



Dis- 
charge. 



Sec-ft. 



1,490 
418 



2,290 
1,850 
1,150 
2,560 
11, 100 
10,800 
15, 700 
18, 500 
8,040 

6,640 

309 
112 
135 



1,870 
765 



1911. 

May 10 
June 7 
July 11 
Aug. 19 
Sept. 8 
8 
Oct. 11 
Nov. 13 
Dec. 7 

1912. 
Jan. 18 
Feb. 10 
25 
25 
Mar. 6 
Apr. 13 
May 16 
June 7 
10 
July 11 
Aug. 10 
Sept. 9 
Oct. 7 
Nov. 11 
Dec. 6 

1913. 
Jan. 8 
Feb. 13 
25 
Mar. 13 
Apr. 11 
May 10 
June 5 
5 
July 14 
Aug. 11 
Sept, 



Made by- 



Donald McDonald 

do 

do 

do 

do 

F.C.Ebert 

Donald McDori„id 

do 

do 



Donald McDonald . 

do 

do 

F.C.Ebert... 
Donald McDonald . 

do 

do 

F.C.Ebert... 
Don-^ld McDonald . 

do 

do 

....do 

do 

do 

....do 



Donald McDonald 

..do 

..do 

..do 

..do 

..do 

R.C.Rice.... 
Donald McDonald 

....do 

....do 

....do 



Dis- 

height. charge. 



Feet. 
3.00 
3.00 
2.90 
2.75 
2.70 
2.70 
2.70 
2.72 



2.77 
2.72 
2.79 
2.79 
3.26 
3.30 
2.87 
2.86 
2.86 
2.79 
2.80 
2.79 
2.80 
2.83 
2.80 



2.82 
3.00 
4.60 
2.98 
2.67 
2.58 
2.60 
2.60 
2.51 
2.50 
2.49 



Sec.-ft. 
389 
243 
127 
55 
47 
48 
37 
45 
67 



61 
55 
42 
43 
199 
407 
89 
54 
44 
27 
21 
21 
21 
24 



6 24 

6 25 

17 

11 

10 



a Measurement not reliable owing to poor measuring conditions. 

6 Includes three-fourths second-foot estimated flow in secondary charmels. 



528 SURFACE WATER OF PACIFIC SLOPE, SOUTHEEiq^ CALIFORNIA. 

Discharge measurements of 8 anta Ynez River near Lompoc, Calif ., for 19G6-19 IS— Contd, 



Date. 


Made by — 


Gage 
hoight. 


Dis- 
charge. 


Date. 


]\Tade by- 


Gage 
lieight. 

Feet. 


Dis- 
charge. 


1913. 




Feet. 


Scc.-ft. 


1915. 




Scc.-ft. 


Nov. 12 


Donald McDonald 


2.61 


26 


June 7 


Donald McDonald 


0.7S 


164 


20 


do 


2.96 


194 


12 


do 


.78 


143 


Dec. 8 


do 


2.eo 


25 


11 


do 


.75 


126 


15 


do 


2.60 


29 


21 


do 


.70 


129 










29 


.....do 


.72 


85 


1914. 








July 5 


do 


.'70 


96 


Jan. 6 


Donald McDonald 


2.79 


79 


10 


do 


.70 


77 


13 


do 




2.60 


54 


12 


do.. 


.68 


85 


15 


do,.... 






3.30 


352 


Aug. 2 


do 


.02 


57 


21 


do 






2.25 


1,230 


7 


do 


.60 


44 


27 


do 






3.25 


7,920 


9 


do 


.60 


46 


30 


do 






2.05 


2,540 


16 


do 


.60 


46 


Feb. 2 


do..... 






1.40 


1,400 


23 


do 


.60 


47 


9 


E,. F. Cowles 




1.25 


651 


Sept. 6 


do 


.60 


31 


19 


do : 




3.20 


10,900 


11 


do 


.60 


38 


22 


Donald McDonald.. 




2.10 


7,530 


13 


do 


.60 


37 


2S 


R. F. Cowles 




.70 


2,280 


Oct. 4 


do 


.60 


35 


Mar. 9 


Donald McDonald.. 




.50 


1,010 


7 


do 


.60 


34 


11 


do 




.50 


861 


16 


do 


.60 


35 


16 


do.... 






.50 


821 


Nov. 8 


.....do 


.60 


38 


23 


do.... 






.40 


644 


Dec. 6 


do 


.70 


129 


31 


do.... 






.50 


666 










Apr. 6 


do.... 






.50 


484 


1916. 








11 


do.... 






.40 


367 


Jan. 4 


Donald McDonald 


1.95 


2,780 


13 


do.... 






.40 


368 


21 


do 


1.10 


1,490 


20 


do.... 






.30 


268 


Feb. 7 


do 


1.00 


945 


May 11 


do.... 






.06 


168 


22 


do 


1.05 


460 


16 


do.... 






.10 


152 


Mar. 6 


do 


1.20 


754 


18 


R. F. CoAvl 
Donald Mc 


;s 




.13 

.04 


154 
144 


21 
Apr. 10 


do 

do 


1.00 
.80 


456 


25 


Donald.. 




246 


28 


do 




.10 


124 


24 


do 


.70 


185 


28 


F. C. Ebert 




.10 


119 


May 8 


do 


.60 


158 


June 1 


Donald McDonald. . 




.11 


126 


22 


do 


.50 


93 


13 


do 




.04 


108 


June 6 


do 


.50 


74 


July 17 


do.... 






- .08 


53 


19 


do 


.55 


49 


Aug. 8 


do.... 






— .22 


34 


July 10 


do 


.50 


35 


Sept. 12 


do...- 






- .25 


34 


24 


do 


.45 


32 


Oct. 5 


do.... 






— .25 


25 


Aug. 7 


do 


.45 


30 


10 


do.... 






- .25 


26 


24 


do 


.40 


33 


12 


do.... 






— .25 


21 


Sept. 4 


do 


.40 


26 


19 


do.... 






- .25 


29 


18 


do 


.40 


25 


26 


do.... 






- .28 


27 


Oct. 9 


do 


.45 


37 


Nov. 7 


do.... 






— .25 


31 


23 


do 


.40 


56 


9 


do.... 






- .25 


33 


Nov. 6 


do 


.45 


38 


16 


do.... 






— .22 


32 


21 


do 


.45 


40 


23 


do.... 






— .22 


30 


Dec. 4 


do 


.50 


60 


30 


do.... 






— .22 


28 


18 


do 


.45 


46 


Dec. 7 


do.... 






— .10 


49 










12 


do 






.00 


83 


1917. 








14 


do.... 






.00 


83 


Jan. 8 


Donald McDonald 


1.00 


329 


21 


do.... 






.05 


111 


22 


do 


1.10 


387 


28 


do.... 






— .10 


85 


Feb. 5 


do 




192 










22 


do 


3! 10 


5, 140 


1915. 








Mar. 5 


do 


1.10 


603 


Jan. 4 


Donald McDonald 


- .05 


75 


20 


do 


.95 


321 


11 


do 




— .10 


73 


Apr. 9 


do 


.75 


195 


16 


do 




— .10 


71 


23 


do -.. 


.75 


169 


18 


do 




— .10 


77 


30 


F.C. Ebert 


.65 


108 


20 


do 




— .12 


64 


May 7 


Donald McDonald 


.65 


116 


20 


F.C. Ebert 




— .12 


70 


21 


do 


.60 


83 


25 


Donald McDonald.. 




- .10 


76 


June 4 


do 


.60 


71 


Feb. 1 


do 




.75 


828 


22 


do 


.60 


37 


6 


do.... 






.70 


837 


26 


F.C. Ebert 


1.61 


27 


9 


do.... 






4.85 


37,900 


July 9 


Donald McDonald 


1.62 


25 


15 


do.... 






1.05 


1,590 


Aug. 20 


do 


1.50 


22 


22 


do.... 






.85 


1,280 


Sept. 10 


do 


1.56 


19 


Mar. 6 


do.... 






1.10 


845 


Oct. 8 


do 


i.56 


18 


8 


do 






1 10 


8.50 


Nov. 24 


Dennis Daly 


1.48 


26 


15 


do.... 






1.10 


510 


Dec." 16 


do 


1..50 


22 


29 


do.... 






1.10 


522 










Apr. 5 


do.... 






.85 


310 


1918. 








12 


do.... 






.85 


305 


Jan. 1 


Dennis Daly 


1.50 


24 


17 


do.... 






.86 


267 


10 


F.C. Ebert 


1.50 


22 


19 


do.... 






.90 


256 


Feb. 3 


Dennis Daly 


1.50 


25 


26 


do.... 






.82 


264 


24 


do 


2.60 


3,160 


May 3 


do.... 






.95 


367 


Mar. 24 


do 


1.80 


1,&50 


G 


do.... 






1.30 


860 


31 


do 


1.70 


835 


11 


do.... 






1.10 


433 


Apr. 8 


do 


1.60 


554 


18 


do.... 






1.00 


304 


14 


do 


1.60 


383 


21 


do.... 






.90 


245 


15 


do 


1.60 


392 


June 3 


do.... 






.80 


144 


May 19 


do 


1.05 


186 


3 


Ewald Pyz 


eL!;:!::: 




.80 


156 


21 


F.C. Ebert 


1.03 


157 



SANTA BARBARA COUNTY. - 529 

Discharge measurements of Santa Ynez River near Lompoc, Calif ., for 1906--191S—Contd. 



' Made by- 



Gage 
leight. 



Dis- 
cbarge. 



Made by- 



Cage f)is- 
height. charge. 



1918. 

June 3 
9 
16 
23 
30 

July 7 
14 
28 
30 



Dennis Daly 

do 

.....do..... 

do 

do 






do 

do 

do 

F. C. Ebert 





Feet. 
1.09 
1.02 
.92 
.88 
.88 
.94 



Sec.-ft. i 
129 1 



104 

88 



1918. 
Aug. ■ 



Sept. 1 



Dennis Daly 

do.. 

do-. 

do.. 

do.. 

do.. 

do.. 

do-. 

do.. 



Feet. 
0.76 



Sec.-ft. 



36 
33 



Daily discharge, in second-feet , of Santa Ynez River near Lompoc, Calif., for 1906-1908 

and 1910-1918. 



Day. 


Nov. 


Dec. 


Jan. 


Sept. 


Day. 


Nov. 


Dec. 


Jan. 


Sept. 


1906-7. 




23 
23 
23 
23 
23 

23 
23 
23 
23 
23 

64 
450 
450 
247 
164 


380 
295 
247 
224 
295 

320 
1,330 




1906-7. 
16 


8 

8 
8 
8 
8 
8 

8 
8 
8 

16 

23 
23 
23 
23 


114 
101 






2 : 




17 




3 




18 - 


76 
76 


■ - ■ 


4 




19 




5 .: 




20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 


76 i 


6 




64 


; 


7 




64 
64 
64 
64 

76 
146 
1,090 
640 
495 
415 


1 " ' 


8 


..... 


» 












i0 .. 


8 

8 
8 

I 

8 







. 


30 


11 






30 


12 






30 


13 






30 


14 






30 


15. - . 






30 












1 




1 



Day. 



Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


30 


197 


67 


67 


950 


30 


155 


67 


67 


1,390 


30 


122 


67 


67 


4,630 


30 


122 


07 


67 


3,860 


30 


122 


67 


67 


1,890 


30 


90 


90 


67 


1,680 


30 


90 


122 


67 


1,300 


30 


90 


122 


67 


1,300 


30 


90 


122 


67 


3,200 


30 


90 


90 


67 


3, 200 


30 


SO 


90 


67 


2,100 


30 


90 


67 


67 


1,890 


30 


90 


67 


67 


1,680 


30 


90 


67 


155 


1,480 


30 


90 


67 


155 


1,300 


30 


90 


90 


155 


1,120 


30 


90 


90 


155 


790 


30 


90 


90 


122 


870 


30 


90 


67 


122 


870 


30 


67 


67 


122 


870 


30 


07 


67 


122 


950 


44 


67 


67 


90 


1,210 


155 


67 


67 


90 


1,120 


155 


67 


67 


155 


950 


197 


67 


67 


2,210 


95a 


555 


67 


67 


3,420 


950 


415 


67 


67 


5,070 


1,035 


555 


67 


67 


4,520 


1,035 


350 


67 


67 


1,390 


1,210 


295 


67 


67 


1,300 




197 




67 


1,035 





Apr. 



May. 



Sept. 



1907-8. 

1 

2... 

3 

4 

5 



7 

8 

9 

10 

11 

12 

13 
U.......... 

15 

16 

17 

18 

19 

20 

21 

'22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



1,120 

1,035 

1,035 

950 

950 

870 
870 
870 
790 
630 

480 
415 
480 
480 



480 
480 
555 
630 
630 

555 
480 
480 
480 
480 



415 
350 
350 
350 
350 



240 
240 
240 
240 

197 
197 
197 
197 
240 

240 
240 
240 
240 
240 

240 
240 
240 
240 
240 

240 
240 
240 
240 
240 

240 
240 
240 
240 
240 



240 
240 
240 
240 
240 

197 
197 
197 
197 



155 
155 

155 
122 
90 
90 
90 

90 
90 
90 
90 
90 



18 
18 
IS 
18 
18 

18 
18 
30 
122 



30 

18 



142131°— 21— wsp 447 



-34 



530 SURrA€E WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Dailij discharge, in second-feet, of Santa Ynez River near Lompoc, Calif., for 1906-1908 
and 1910-1918 — Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Day. 


Oct. 


Nov. 


Dec. 


Day. 


Oct. 


Nov. 


Dec. 


1908. 
1 


18 
18 
18 
18 
18 

18 
18 
18 
18 
18 


18 
18 
18 
18 

18 

18 
18 
18 
18 
18 


18 
18 
44 
18 
90 

90 
67 
44 
44 
197 


11 
12 
13 
14 
IS 

le 
ij 

1£ 

2C 


1908. 


18 
18 
18 
18 
18 

18 
18 
18 
18 
18 


18 
18 
18 
18 

18 

18 
18 
18 
18 

18 


44 
67 
30 
30 

18 

18 
18 
18 
44 
30 


1908. 
21 


18 
18 
18 
18 
18 

18 
18 
18 
18 
18 
18 


18 
18 
18 
18 
18 

18 
18 
18 
18 
18 


3") 


2 




22 


31 


3 




23 


30 


4 




24 .... 


3) 


5 




25 


18 


6 .... 




26 


IS 






27 


is 


J.. 




28 


18 


9 





29 


18 


10 




30 


18 







31 


18 












Day. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1910. 
1..., 


11,100 

1,580 

1,200 

750 

020 

620 


225 
225 
225 
225 
150 

150 


150 
90 
90 
90 
90 

120 
120 
90 
90 
90 

90 
90 
90 
150 
120 

90 
90 
150 
150 
150 

150 
740 
480 
375 
275 

270 
615 
1,260 
■ 785 
640 
fi25 


550 
385 
380 
275 
275 

275 
275 
275 
197 
197 

197 
197 
197 
197 
138 

138 
138 
138 
138 
138 

95 
95 
95 
95 
95 

95 
95 
95 
95 
95 


95 
95 
95 
95 
95 

95 
95 
95 
95 
95 

95 
95 
95 
95 
95 

95 

58 
58 
58 
38 

58 
58 
58 
58 
58 

58 
58 
57 
56 
54 
53 


52 
51 

49 
48 
47 

46 
44 
43 
42 
42 

42 
42 
42 
42 
42 

42 
36 
36 
36 
36 

36 
36 
30 
30 
30 

30 
30 
30 
30 
30 


30 
30 
30 
30 
30 

30 
26 
26 
26 
26 

26 
26 
26 
26 
22 

22 
22 
22 
22 
22 

20 
20 
20 
20 
20 


20 
20 
20 
20 
20 

20 
20 
20 
20 
20 

20 
20 
20 
20 
20 

22 
22 
22 
22 
22 

22 

22 
22 


22 


2..:.. 


22 


3 


22 


4 


22 


5 


22 


6..... 


22 


7 


620 1 150 


22 


8 


500 
500 
400 

310 
310 
225 
225 
500 

620 
1,040 
750 
620 
500 

500 
400 
400 
400 
400 

400 
400 
310 
310 
310 
225 


150 
150 
150 

150 
150 
150 
150 
150 

150 
150 
150 
150 
150 

150 
150 
150 
150 
150 

150 
150 
150 


22 


9..... 


22 


10 


22 


11. . 


22 


12 


22 


13 


22 


14 


22 


15 


30 


IC 


30 


17 


30 


18 


28 


10 


26 


20 


22 


21 


22 


22 


22 


23 


22 


24 


22 


25 


22 


26 


22 ! 22 
22 j 22 
20 1 22 
20 1 22 
20 i 22 
20 22 


22 


27 


22 


28 


22 


29 


22 


30 


22 


31 





























Note.— Daily discharge determined from rating curves applicable as follows: Jan. 1 to Mar. 21, 1910, 
poorly defined and only approximate above 400 second-feet; Mar. 22 to Apr. 3, 1910, indirect method for 
shifting control. Apr. 4 to May 27, 1910, poorly defined; May 28 to June 8, 1910, interpolated; June 9, 
1910, to Jan. 29, 1911, poorly defined; Jan. 30 to Mar. 9, 1911, poorly defined; Mar. 10 to June 6, 1911, indi- 
rect method for shifting control; June 7 to Aug. 16, 1911, poorly defined: Aug. 17, 1911, to June 30, 1912, 
indirect method for shifting control and rating tables covering short periods of time. 






SAISTTA BARBARA COUNTY. 



531 



Daily 'discharge, in second-feet, of Santa Ynez River near Lompoc, Calif., for 1906-1908 
and 1910-1918 — Continued. 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June. 


July. 


Aug. 


Sept. 


1910-11. 
1 


22 
22 
22 
22 
22 

22 
22 
22 
22 

22 

22 
22 
26 
26 
26 

26 
22 
22 
22 
22 

22 
22 
22 
22 

22 

22 
22 
26 
26 
26 
26 

40 
40 
40 
39 
39 

39 
38 
38 
38 
37 

37 
37 
37 
37 

37 

37 
37 
37 
37 
37 

37 
37 
37 
37 
37 

37 

37 
37 
37 
37 
37 


22 
22 
22 
26 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

37 
37 
37 
37 
37 

37 
37 
37 
37 
37 

37 
37 
37 
37 
37 

37 
37 
37 
37 
37 

37 
37 
37 
37 
37 

37 
37 
37 
37 
37 


30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
42 

36 
36 
36 
30 
30 

30 
30 
30 
30 
30 
30 

37 
37 
37 
37 
37 

37 

67 
67 
67 
67 

67 
67 
67 
67 
67 

67 
67 
67 
67 
67 

67 
67 
67 
67 
67 

67 
67 
67 
67 
67 
67 


30 
30 
30 
30 
30 

30 
30 
30 
30 
64 

335 
260 
260 
260 
335 

430 
195 
97 
64 
64 

64 
64 
42 
42 
430 

810 

430 

670 

17,300 

3,210 

7,030 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
80 
80 
80 

80 
80 
45 
45 
45 

45 
45 
45 
45 
45 
45 


2,070 

790 

230 

4,930 

2,610 

1,830 
970 
620 
620 
620 

1,380 

1,170 

790 

1,170 

790 

620 
470 
470 
470 
620 

620 
620 
620 
620 
620 

470 
470 
790 

45 
45 
45 
45 
45 

t 

45 
45 
45 

45 
45 
45 
45 
45 

45 
45 
40 
35 
32 

30 
28 
25 
22 
45 

45 
45 
45 

45 


4,750 
5,290 
2,070 
6,430 
7,030 

7,030 
19,000 
16, 100 
20,400 
15,000 

9,000 
6,000 
3,800 
3,300 
3,200 

2,500 
2,000 
1,900 
2,100 
2,000 

1,900 
1,870 
1,600 
1,900 
1,630 

1,370 
1,500 
1,270 
1,210 
1,150 
1,270 

45 
45 
45 
95 
95 

280 
350 
50 
55 
185 

110 
670 
560 
340 
170 

185 
205 
205 
205 
205 

205 
205 
205 
205 
205 

205 
205 
205 
205 
205 
125 


1,400 
1,340 
1,270 
1,210 
1,150 

1,090 

1,020 

960 

900 

830 

765 
745 
725 
700 
680 

660 
820 
800 
770 
750 

730 
710 
690 
660 
640 

800 
600 
580 
550 
530 

125 
125 
126 
125 
125 

125 
125 
70 
70 
70 

125 
540 
410 
300 
205 

205 
205 
205 
205 
205 

205 
125 
125 
125 
125 

125 
125 

70 
70 
70 


520 
500 
590 
470 
460 

440 
430 
420 
400 
389 

384 
379 
373 
388 
363 

358 
353 
347 
342 
337 

332 
327 
321 
316 
311 

305 
300 
295 
290 
284 
279 

75 
75 

80 
80 

85 

85 
o90 
a 90 
o90 

95 

95 
100 
100 
100 
100 

100 
100 
100 
95 
95 

90 
90 
85 
85 
150 

150 
140 
140 
135 
135 
135 


274 
269 
264 
258 
253 

248 
243 
243 
243 
243 

243 
243 
243 
243 
243 

243 
243 
243 
243 
127 

127 
127 
127* 
12? 
127 

127 
127 
127 
127 
127 

70 
70 
70 
70 
70 

70 
70 
70 
70 
70 

70 
70 
70 
70 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 

30 
30 
30 
30 
30 


127 
127 
127 
127 
127 

127 
127 
127 
127 
127 

127 
127 
127 
127 
127 

127 
127 
127 

97 
97 

97 
97 
97 
97 
97 

97 
97 
97 
97 
97 
97 

29 
29 
29 
29 
29 

28 
28 
28 
28 
28 

27 
27 
27 
27 
27 

27 
26 
26 
26 
26 

26 
25 
25 
25 
25 

25 
24 
24 
24 
24 
24 


97 
97 
97 
96 

97 

97 
97 
97 
97 
97 

97 
97 
67 
67 
67 

67 
55 
55 
55 
56 

56 
57 
40 
40 
41 

41 
42 
42 
43 
44 
44 

23 
23 
23 
23 
23 

22 
22 
22 
22 
21 

21 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
21 
21 
21 
21 
21 


45 


2 


45 


3 


46 


4 


46 


5 


47 


6 


47 




48 


8 


48 


9 


48 


10 


47 


11 


47 


12 


47 


13 


46 


14 


46 


15 


46 


16 


45 


17 


45 


18 


45 


19 ,.... 


44 


20 


44 


21 


44 


22 


43 


23 


*43 


24 


43 


25 


42 


26 


42 


27 


42 


28 


41 


29 


41 


30 


41 


31 




1911-12. 
1 


21 


2 


21 


3 


21 


4 


21 


5 


21 


6 


21 


7 


21 


8 


21 


9 


21 


10 


21 


11 


21 


12 


21 


13 


21 


14 


21 


15 


21 


16 


21 


17 


21 


18 


21 


19 


21 


20 


21 


21 


21 


22 -. . 


21 


23 


21 


24 


21 


25 


21 


26 


21 


27 


21 


28 


21 


29 


21 


30 


21 


31. 









a Gage not read; discharge interpolated. 

Note.— Daily discharge determined by indirect method for shifting control and rating tables covering 
short periods of time. Discharge Oct. 1 to 10, 1911, interpolated. 



532 SURE ACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



Daily discharge, in second-feet, of Santa Ynez River near Lompoc, Calif., for 1966-1908 
and 1910-1918— Continued, 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May 


June. 


July. 


Aug. 


Sept. 


1912-13. 
1 


21 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
21 
21 
21 
21 

21 
22 
22 
22 
22 

. 22 
22 
22 
22 
22 

23 
23 
23 
23 

23 
23 


23 
23 
23 
21 
21 

24 
24 
24 
24 
24 

24 
24 
24 
24 
24 

24 
24 
24 
24 
24 

24 
24 
24 
25 
25 

25 
25 
25 
25 

25 


25 
25 

25 
25 
25 

25 
25 
25 
25 
26 

26 
26- 
27 
27 

27 

28 
28 
28 
28 
29 

29 
29 
30 
30 
30 

31 
31 
31 
32 

32 
32 


32 
33 
33 
33 
33 

34 
34 
34 
34 
34 

34 
34 
34 
34 
125 

70 
68 
66 
64 
62 

60 
58 
56 
54 

52 

50 

48 
46 
44 
42 
40 


37 
35 
33 
31 

29 

27 
25 
70 
125 
185 

100 
90 
80 
80 

80 

80 
75 
75 
75 

75 

70 
70 
70 
125 
4,470 

2,600 
900 
500 


350 
350 
350 
240 
240 

240 
240 
150 
150 
150 

150 
150 
150 
147 
144 

141 

138 
135 
132 
129 

126 
123 
120 
117 
114 

111 
108 
105 
102 
99 
90 


93 
90 

87 
84 
81 

78 
75 
72 
69 
66 

63 
62 
61 
60 
60 

59 
58 
57 
56 
56 

55 
54 
53 
52 
52 

51 

50 
49 

48 
48 


47 
46 
45 
44 

44 

43 
42 
4l 
40 
40 

40 
39 
38 
38 
37 

36 
36 
35 
34 
34 

33 
32 
32 
31 
30 

30 
29 

28 
28 
27 
26 


26 
25 
25 
24 
24 

24 
24 
24 

24 
24 

24 
24 
24 
24. 
24 

24 
24 
24 
24 
24 

24 
24 
24 
24 
24 

24 
24 
17 
17 
17 




11 
24 
24 
24 
11 




2..... 




3 




4 




5 




6 


jj 


7 . 




8... 

9 




10 




11 




12 




13 ... 




14 




15 




16 




17 




IS. . 




19 




20....: 




21 




22 




23 




2f 




25 




26 




27 




28 




29 

30 

31 





Note.— , niiy discharge determined by indirect method for shifting control, interpolation between 
measurements, and rating curves covering short periods. Observer's measurement Feb. 25 taken as mean 

(iischar[e for day. ... 



9.. 
10.. 

11-. 

12.. 
13.. 



22.. 
23.. 
24.. 
25.. 



27.. 
28.. 
29.. 
30.. 
31.. 



314 
143 
142 
110 

81 

79 
75 



54 
54 

275 

600 
2,200 
30, 800 
4,250 
2,200 
1,230 
725 
500 
2,800 
22, 200 

22,000 
7,920 
4, 650 
3,750 
2, .540 
2,000 



1,600 
1,400 
1,200 
1,600 
1,600 

1,200 

1,200 

900 

651 

600 



600 
350 
350 
200 

200 
200 
6,650 
10,900 
24,800 
25, 500 
7, .530 
6,050 
4,050 
2,750 

2,350 
2,000 



2,500 
1,700 
1,650 
1,350 
1,300 

1,220 
1,150 
1,080 
1,010 
980 



861 
841 

821 
795 
770 
745 
720 
695 
670 
644 
646 
649 
652 
655 
658 
661 
664 
666 



635 
605 
575 
545 
515 

484 
460 
437 
414 
391 

367 
368 
368 
353 



325 
311 
297 
283 
268 
264 
260 
256 
252 
247 
242 
237 
232 
227 
222 



217 
212 
207 
202 
197 

192 
187 
182 
177 
172 



101 

158 
155 

1.52 
153 
152 
150 
149 

148 
147 
146 
145 
144 

136 
129 
122 
123 
124 
125 



126 
125 
123 
122 
120 

119 

117 



111 
110 

108 



37 


34 


37 


34 


36 


34 


36 


34 


35 


34 


35 


34 


34 


31 


34 


34 


34 


34 


34 


34 


34 


34 


34 


34 


34 


34 


34 


34 


34 


33 


34 


33 


34 


33 


34 


32 


34 


32 


34 


32 


34 


32 


34 


31 


34 


31 


34 


31 


34 


30 


34 


30 


34 


33 


34 


29 


34 


29 


34 


29 


34 





Note.— High-water discharge October to January read from curves or computed by shifting-control 
method; discharge Mar. 9 to Sept. 30 interpolated between measurements, except for slight rise Mar, 29-30, 
as the stage was falling gradually. 



SANTA BARBARA COXJiTTY. 



533 



Daily discharge, in second-feet, of Santa Ynez River near Lompoc, Calif., for 1906-1&0S 
and 1910-1918 — Continued. 



Day. 


Oct. 


Nov. 


Den. 


Jan. 


Feb. 


Mar. 


Apr. 


Mny. 


June. 


July. 


Aug. 


Sept. 


1914-15. 
1 


29 
28 
27 
26 
25 

25 
25 
26 
26 

26 

25 
24 
24 
25 
26 

27 
28 
29 
29 
29 

29 
28 
28 
27 
27 

27 
27 
27 

28 
28 
28 


29 
29 
29 
30 
30 

30 
31 
32 
33 
33 

33 
33 
32 
32 
32 

32 
32 
32 
31 
31 

30 
30 
30 
30 
30 

29 
29 

28 
28 
28 


85 
70 
50 
50 
70 

50 
49 
55 
62 
69 

76 
83 

83 
83 

85 

85 
270 
110 
165 
135 

111 
90 
80 
85 
70 

55 

80 
85 
84 
82 

81 


80 
78 
77 
75 

75 

75 
74 
74 
73 
73 

73 
73 

72 
72 
71 

71 

74 
77 
72 
67 

68 
70 
72 
74 
76 

76 

76 

160 

1,760 

5,300 

1,480 


1,080 
6,100 
4,880 
2,170 
1,080 

837 

837 

2,950 

32,500 

20,200 

15,500 
9,200 
5,700 
3,100 
1,590 

1,500 
2,100 
2,350 
2,000 
2,250 

1,900 
1,280 
1,500 
3,450 
2,200 

1,700 
1,600 
1,300 


1,550 
1,650 
1,350 
1,050 
950 

845 
848 
850 
800 
1,050 

850 
800 
600 
550 
510 

510 
510 
460 
460 
460 

460 
460 
410 
410 
410 

410 
410 
410 
522 
460 
365 


365 
365 
335 
335 
310 

310 
310 
335 
305 
305 

305 
305 
298 
290 
282 

274 
267 
262 
256 
260 

265 
250 
260 
290 
275 

264 
265 
265 
265 
320 




325 

400 

367 

460 

1,720 

860 
830 
620 
530 
510 

433 
425 
415 
365 
325 

315 

310 
304 
295 

285 

275 
265 
255 
245 
235 

225 
215 
205 
195 
185 
175 


165 
155 
150 
153 
157 

160 
164 
160 
156 
152 

148 
143 
135 
126 
126 

127 
127 
128 
128 
129 

129 
124 
118 
113 
107 

102 
96 
91 

85 
86 


88 
90 
92 
94 
96 

92 

88 
84 
80 
77 

81 

85 
84 
83 
81 

80 
79 
77 
76 
75 

73 

72 
71 
69 
68 

67 
65 
64 
63 
61 
60 


59 
57 
55 
52 
49 

46 
44 
45 
46 
46 

46 
46 
46 
46 
46 

46 
46 
46 
46 
47 

47 
47 
47 
45 
44 

43 
42 
41 
40 
39 
38 


37 


2 


36 


3.. 


. 35 


4 


34 


5 


33 


6 


31 


7 


. 32 


8 


34 


9 




10 


37 


11 


: 38 


12 


38 


13 


. 37 


14 


; 37 




37 


16 


. 37 


17 


, 37 


18 


36 


19 


. 36 


20 


36 


21 


. 36 


22 


36 


23 


35 


24 . . 


36 


25 


35 


26 


35 


27 


35 


28 


35 


29 


35 


30 . 


• 35 


31 









Note. — Discharge interpolated between measurements Oct. 1 to Nov. 31; Dec. 7-14; Dec. 28 to Jan. 27; 
and May 18 to Sept. 30. Remainder of record obtained by shifting-control method, and from rating curves 
covering short periods. 



1915-16. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 



35 


37 


40 


25 


1,300 


680 


340 


171 


81 


. 41 


31 


35 


38 


40 


85 


1,300 


600 


340 


169 


79 


41 


31 


35 


38 


40 


850 


1,110 


530 


285 


167 


78 


40 


31 


35 


38 


460 


3,370 


1,110 


460 


285 


165 


76 


39 


30 


35 


39 


340 


1,150 


1,110 


600 


285 


163 


75 


39 


30 


34 


39 


130 


760 


1,200 


760 


285 


161 


74 


38 


30 


34 


39 


130 


600 


940 


680 


285 


160 


72 


37 


30 


34 


40 


130 


460 


915 


600 


230 


158 


70 


37 


30 


34 


40 


85 


460 


885 


530 


230 


155 


68 


36 


30 


34 


40 


85 


1,390 


860 


460 


230 


150 


66 


35 


30 


34 


40 


40 


940 


830 


460 


227 


a 145 


64 


35 


o31 


35 


40- 


40 


600 


805 


460 


224 


140 


62 


35 


a 31 


o35 


40 


40 


600 


775 


460 


221 


135 


60 


34 


a 31 


35 


40 


230 


600 


750 


460 


217 


130 


58 


34 


a 31 


35 


40 


180 


760 


720 


460 


214 


125 


56 


34 


a 31 


35 


40 


130 


760 


695 


340 


211 


120 


54 


34 


«32 


35 


40 


130 


15,000 


665 


340 


208 


115 


52 


34 


o32 


35 


40 


40 


6,660 


640 


340 


204 


110 


50 


33 


a 32 


a 35 


40 


40 


3,340 


610 


340 


201 


105 


49 


33 


a 32 


a 35 


40 


40 


1,690 


585 


460 


198 


100 


49 


33 


a 32 


a 35 


40 


40 


1,490 


555 


460 


195 


95 


48 


33 


a 33 


«35 


40 


40 


1,310 


530 


460 


191 


93 


47 


33 


a 33 


36 


40 


25 


1,310 


530 


460 


188 


92 


47 


32 


33 


36 


40 


25 


1,140 


460 


460 


185 


91 


46 


32 


33 


36 


40 


10 


1,690 


460 


400 


183 


89 


45 


32 


32 


36 


40 


10 


1,490 


460 


400 


181 


88 


45 


32 


32 


36 


. 40 


10 


6,220 


940 


400 


179 


87 


44 


32 


31 


36 


40 


10 


7,980 


940 


340 


177 


85 


43 


31 


30 


37 


40 


10 


6,300 


760 


340 


175 


84 


43 


31 


30 


37 


40 


25 


2,000 




340 


173 


83 


42 


31 


29 


37 




25 


1,300 




340 




82 




31 


28 



26 
26 

26 

26 
25 



25 
50 



i Gage not read; discharge interpolated. 



534 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

Daily discharge, in second-feet, of Santa Ynez Bivernear Lomvoc, Calif., for 1906-1908 
and 1910-1918— Qontmvmdi. 



Day. 



Apr. 



May. 



July. 



1,000 
4,500 

750 
190 
140 
140 
140 
140 



250 
320 
400 
490 
320 

320 
250 
320 
320 
320 

O320 

o400 

«500 

250 

250 

250 
250 
250 
400 
600 

490 
400 
320 
320 
320 

320 
320 
360 
360 
320 
285 



192 
192 
192 
435 

1,610 
5,500 
1,920 
1,220 
4,480 

2,140 
950 
830 



25 
25 
25 
25 

25 

70 
70 
100 
900 
13,300 

14, 400 
6,230 
3,580 
2,830 
2,340 

2,150 
2,150 
1,800 



710 
710 
600 
600 
600 

600 

550 

550 

a 525 

«500 

1475 
a 450 
425 
a 400 
o. 375 

o350 
320 
320 
320 
320 

320 
320 

285 
285 
285 

285 
285 
285 
252 
252 
220 



1,500 
1,200 
1,200 
1,200 
1,350 

1,420 
4,300 
4,020 
3,350 



6,750 
4,500 
4,020 
2,830 
2,520 

2,150 



11,700 
3,800 

2,520 
2,240 
1,980 
1,650 
1,530 

1,420 
1,300 
1,180 
1,070 
950 
835 



220 
220 
192 
192 
192 

192 
192 
192 
192 
192 

192 
192 
192 
192 
192 

190 
190 
190 
190 
190 

165 
165 
165 
165 
140 

140 
ol32 
a 124 
a 116 



440 
411 
.383 
392 



a 24 
24 



a 24 
a 24 



a Gage not read; discharge interpolated. 

Note.— No gage-height record Nov. 4-23, discharge interpolated; Apr. 21-30, discharge estimated 8 
second-feet; and May 1-18, discharge estimated as 240 second-feet. 



SANTA BARBARA COUN^TY. 



535 



Monthly discharge of Santa Ynez Rivei' near Lompoc, Calif., for 1906-1908 and 1910- 

1918. 



Discharge in second-feet 



Maxi- Mini- 
mum, mum. 



Run-off 
(total 



Discharge in second -feet. 



Maxi- Mini- 
mum, mum. 



Run-ofif 

(total 



1906-7. 
November, 10-30. 

December 

January, 1-7 

September, 25-30 

1907-8. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year 



23 
1,090 
1,330 

30 



555 

197 

122 

5,070 

4,630 

1,120 

295 

240 

90 

90 

30 

122 



5, 070 



October 

November 

December 

The period. 
1910. 

January 

February.. 

March 



April. 
May.. 

June 

July 

August 

September 

The period.. 
1910-11. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 



11,100 
225 
1,260 
550 
95 
52 
30 
22 
30 



42 

17,300 

4,930 

20, 400 

1,400 

590 

274 

127 

97 

48 



The year 

1911-12. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year 

1912-13. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 



20, 400 



670 
540 
150 
70 
29 
23 
21 



23 
25 
32 

125 
4,470 

350 
93 
47 
26 
17 



30 
67 
67 
67 
790 
350 
197 
90 
90 
30 
18 
18 



442 
30.0 



613 

236 

145 
90 
53.3 
19.2 
23.1 



18 
18 
38.5 



225 
150 
90 
95 
53 
30 
20 
20 
22 



872 

161 

271 

188 
76.7 
39.1 
24.0 
21.0 
23.1 



22 
22 
30 
30 
230 
1,150 
530 
279 
127 



23.0 
29.1 
31.0 
1,060 
1,000 
5,020 
836 
374 
204 
114 
69.1 
44.8 



37.6 
37.0 
61.2 
69.8 
41.4 

202 

162 

102 
48.7 
26.5 
21.5 

.21.0 



i9. 4 



21.7 
24.1 
27.8 
47.6 

365 

164 
63.3 
36.3 
23.4 
13.7 



479 

10, 400 

6,140 

357 

7,010 
5,390 
4,720 
42,200 
108,000 
37, 700 
14,000 
8,920 
5,360 



1,110 
1,070 
2,370 



53, 600 
8,940 
16, 700 
11,200 
4,720 
2,330 
1,480 
1,290 
1,370 



102, 000 



1,410 
1,730 
1,910 
65, 200 
55, 500 
309, 000 
49, 700 
23, 000 
12, 100 
7,010 
4,250 
2,670 



533, 000 



2,310 
2,200 
3,760 
4,290 
2,380 
12, 400 
9,640 
6,270 
2,900 
1,630 
1,320 
1,250 



59, 400 



1,330 
1,430 
1,710 
2,930 
20, 300 
10, 100 
3,770 
2,230 
1,390 
842 



1912-13. 
August 

September 

The year . 
1913-14. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year . 

1914-15. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year . 

1915-16. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year . 

1916-17. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year . 

1917-18. 

October 

November 

December 

January 

February 

March 

April 

May 

June 

July 

August 

September 

The year.. 



11 

227 

92 

30, 800 

25, 500 

2,500 

635 

217 

126 

48 

37 

34 



30, 800 



29 

33 

270 

5,300 

32, 500 

1,650 

365 

1,720 

165 

96 

59 

38 



32, 500 



40 
460 
15, 000 
1,300 
760 
340 
171 
81 
41 
33 
50 



15, 000 



75 
44 
4,500 
600 
5,500 
710 
220 
116 
73 
26 
23 
20 



5,500 



22 
26 
24 
25 
14, 400 
11, 700 
800 



135 

87 

39 

47 

14, 400 



12.3 
11.0 



8.9 
49.7 
30.3 
3,610 
3,900 
952 
359 
161 
82.7 
42.9 
34.4 
32.4 



754 



28 
49 
67 
837 
365 
250 
175 
85 
60 
38 
31 



26.9 
30.6 
86.7 
345 

4,740 

690 

293 

405 

131 
77.9 
46.2 
35.6 



547 



84.5 
2,330 

808 

465 

225 

123 
58.1 
34.6 
31.0 
26.3 



57.0 
39.7 

267 

342 

821 

412 

177 
94.6 
48.1 
24.5 
22.1 
19.0 



190 



22 
22 
25 
835 



19.4 

24.7 
23.0 
23.3 
1,800 
2,620 
457 
203 
101 
62.7 
34.2 
37.8 



443 320, 000 



536 STJEFACE WATEE OF PACIFIC SLOPE, SOUTHEKN CALIFORNIA. 



MONO CREEK NEAR SANTA BARBARA, CALIF. 

Location.— In S. ^ sec. 8, T. 5 N., R. 26 W. (unsurveyed), at Mono Flat dam site, 
about half a mile below mouth of Indian Creek, half a mile above junction with 
Santa Ynez River, 3 J miles east of river measurements station on Santa Ynez River 
at Gibraltar dam, and 8 miles northeast of Santa Barbara, Santa Barbara County. 

Drainage area. — 126 square miles. ^ 

Elevation. — About 1,400 feet above sea level. 

Records available. — January 1, 1903, to June 30, 1904. 

Gage. — Inclined staff fastened to willow tree on right bank about 500 feet below dam site, 

Discharge measurements. — Made from cable just above gage or by wading. 

Discharge. — Measured by weir November 1 to December 31, 1903. 

Channel and control. — Sand and gravel; fairly permanent. Both banks are high 
and not subject to overflow; channel slightly curved for about 500 feet above and 
below gage. 

Diversions. — No information. 

Regulation. — No information. 

Discharge measurements of Mono Creeh 7iear Santa Barbara, Calif. , for 1902-1904. 
[Made by H. Rankin and R. L. North.] 



Date. 


Gage 
height. 


Dis- 
charge. 


Date. 


height. 


Dis- 
charge. 


Date. 


Gage 
height. 


Dis- 
charge, 


1902. 

Nov 11 


Feet. 


Sec.-ft. 

8.7 

295 

20 

12.5 
9.0 

14.8 

10.1 
0.9 
8.8 
8.2 
8.1 

12.0 
8.8 
8.4 
8.8 
8.2 
7.6 
4.9 
5.1 
5.0 
5.1 
5.2 
4.8 
4.7 
4.6 
4.6 
4.6 
4.4 
3.8 
3.8 
3.6 
3.6 
3.6 

11.0 

26 

13.6 

13.3 
9.8 

e.6 

6. 3 
6.6 
6.5 
9.2 
7.5 
9.8 
9.9 
8.2 
8.0 
7.1 
7.1 
7.2 
7.2 


\ 1903. 
! Mar. 25 


F,H. 
2.50 
1.90 
1.70 
1.60 
1.61 
2.05 
2.80 
4.50 
3.00 
2.50 
2.40 
2.20 
2.00 
1.90 
1.85 
1.80 
1.77 
1.73 
1.70 
1.65 
1.63 
2.20 
2.40 
2.30 
2.35 
2.10 
2.00 
1.90 
1.85 
1.80 
1.75 
1.70 
1.70 
1.67 
1.65 
1.60 
1.58 
1.56 
1.55 
1.52 
1.50 
1.50 
1.50 
1.48 
1.48 
1.48 
1.47 
1.45 
1.45 
1.43 
1.43 
1.43 
1.42 
1.42 


Scc.-ft. 

153 
62 
36 
27 
30 

177 

227 

710 

270 

131 
92 
69 
52 
41 
40 
39 
34 
29 
28 
26 
25 
71 

106 
94 
90 
72 
59 
46 
43 
38 
36 
29 

.28 
28 
27 
24 
21 

19.2 
18.9 
17.2 
17.0 
16. 4 
15. 6 
14.3 
14.0 
13.8 
13.6 
13.5 
11.8 
11.7 
11.7 
11.8 
10.3 
10.0 


1903. 
May 22 


Feet. 
1.42 
1.42 
1.41 
1.41 
1.40 
1.40 
1.40 
1.40 
1.37 
1.35 
1.33 
1.30 
1.28 
1.28 
1.35 
1.40 
1.45 
1.40 
1.35 
1.33 
1.30 
1.30 
1.30 
1.29 
1.22 
.80 

1.89 
1.41 
1.90 
1.48 
1.35 
1.33 
1.71 
1.52 
1.48 
1.52 
1.43 
1.95 
1.77 
1.64 
1.45 
1.42 
1.63 
1.63 
1.62 
1.46 
1.43 
1.32 
1.32 
1.32 


5«.# 




2.95 
1.55 
1.30 
1.25 
1.35 
1.30 
1.20 
1.28 
1.28 
1.21 
1.35 
1.29 
1.28 
1.27 
1.26 
1.25 
1.20 
1.20 
1.20 
1.20 
1.20 
1.19 
1.19 
1.17 
1.15 
1.15 
1.15 
L14 
1.14 
1.12 
1.12 
1.12 
1.30 
l.GO 
1,37 
1.35 
1.30 
1.25 
1.22 
1.22 
1.22 
1.27 
1.25 
1.30 
1.32 
1.2G 
1.25 
1.24 
1.24 
1.23 
1.23 


26. 


23 

25 

26 

27 

28 


9.1 


1903. 


27 


8.8 


Jan. 28 


28 


8.4 


29 


29 


7.7 


30 


30 


7.5 


31 


31 


29 


7 5 


Feb. 1 


\^^-v 


30 


7.4 




June 1 


6.2 


3 


3 


2 


5.7 


4 


4 


3 


5.7 


5 


4 


4.4 


C 


e::::::::: 


5 


3.4 


8 


7 


6 


3.?. 
5.1 


9 


8 


8 


10. -- 


9 


9 


8.J2 


11 


10. 


10 


10.6 


12 


11 


11 


8.6 


13 . 


12 


12 


4.7 


14 


14 


13 


4.4 


16 


15 


15 


3.3 


17. 


16 


16 


3.2 


18 


17 


17 


3.2 


19 


18 


18 


3.0 


20":: : 


19 


20 


2.0 


21 


20. 


July 12 


.4 


23 


21 


1904. 
Feb. 28 




24. 


22 




25 


23 


30.0 


26 


24 


29 


3.5 


27. 


25 


Mar. 11 


32.0 


28 


27 


12 


8.0 


Mar 1 


28 


13 


2.6 


2 


29 


14 


2.3 


3 


30 


25 


18.2 


4 


May 2 


27 . 


8.2 


5 


3 


29 


7.9 


6 


4 


Apr. 1 


8.1 


7 


5 


3 

19 

20 


4.1 


9 


6 


34.0 


10 


7 


19.4 


n 


8 


21 

24 

25 

26 

27 


9.7 


12 


10 


5.4 


13 


11 


4.0 


14 


12 


8.9 


15 


13 


8.8 


16 


14 


29 

May 1 


8.2 


17 


15 . . . 


6:4 


18 


16 


7 : : : : : : : : : 

9 


4.2 


19 


17 


2.1 


90 


18 

19. .. 


2.0 


21 


11 


2.0 


22 


20 






23 


21 











'Previously pul^lished as 119 square miles. 



SANTA BARBARA COUNTY. 537 

Daily discharge, in second-feet, of Mono Creek near Santa Barbara, Calif, for 1903-4- 



Jan. 



Feb. 



Mar. Apr. 



May. 



June. 



Day. 



1903. 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 , 

27 



Jan, 



295 
20 
13 
9 



Feb. 



Apr. 



May. 



June. 



Day. 



Dec. 


Jan. 


Feb; 


Mar. 


Apr. 


May. 


0.05 


0.04 


0.04 


0.88 


7.4 


5.3 


.05 


.04 


.04 


.49 


5.6 


5.6 


.05 


.04 


.04 


.30 


4.4 


6.0 


.04 


.04 


.04 


.10 


3.1 


6.3 


.05 


.04 


.04 


.10 


3.1 


4.4 


.05 


.04 


.04 


.09 


3.1 


2.8 


.04 


.04 


.04 


.08 


2.8 


1.9 


.05 


.04 


.04 


.06 


2.4 


1.9 


.04 


.04 


.04 


.06 


2.4 


1.9 


.05 


.04 


.04 


.19 


2.4 


1.9 


.05 


.04 


.04 


31 


2.4 


1.9 


.05 


.04 


.03 


6 


2.4 


3.3 


.05 


.04 


.06 


2.4 


2.4 


3.1 


.05 


.04 


.06 


2.0 


2.4 


3.1 


.05 


.04 


.06 


2.0 


2.4 


2.8 


.05 


.04 


.23 


1.9 


2.4 


2.8 


.05 


.04 


.09 


1.7 


2.6 


2.6 


.05 


.04 


.03 


1.5 


2.6 


2.4 


.05 


.07 


.03 


1.1 


35 


2.2 


.05 


.05 


.03 


1.1 


21 


2.2 


.05 


.05 


.03 


1.1 


13.3 


2.4 


.05 


.04 


.03 


1.1 


10.2 


2.4 


.05 


.04 


.03 


1.6 


7.4 


2.2 


.05 


.04 


.03 


76 


5.0 


2.0 


.05 


.04 


.03 


17.4 


4.1 


2.2 


.05 


.04 


.03 


11.2 


12.8 


2.4 


.05 


.04 


285 


7.4 


12.8 


2.2 


.05 


.04 


30 


6.6 


12.8 


2.0 


.05 


.04 


3.8 


6.0 


12.2 


1.9 


.06 


.04 




6.6 


11.2 


1.7 


.06 


.04 




7.4 




1.5 



1903-4. 

1 

2 

3 

4 

5 

6 

7 

8 : 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19. 

20 :. 

21 

22 

23 

24 

25 

20 

27 

28 

29 

30 

31 



1.4 
1.4 
1.4 

1.4 
1.4 
1.3 
1.0 
1.3 
1.3 
1.1 
1.1 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 
1.0 
.9 



Monthly discharge of Mono Creek near Santa Barbara, Calif, for 1903-4. 






Discharge in second-feet. 


Rim-oii 

(total* 

in 
acre- 
feet). 


Month. 


Discharge in second-feet. 


Run-ofl 

(total 


Month. 


Maxi- 
mum. 


Mini- 
m_um. 


Mean. 


.Maxi- 
mum. 


Mini- 
mum. 


Mean. 


in 
acre- 
feet). 


1903. 
January ......... 


295 
15 
227 
710 
26 
11 


0.2 
4 
4 
25 
6 
2 


11 

7 
30 
81 
13 

5 


676 
389 
1,845 
4,820 
799 
198 


1903-4. 






0.05 
.05 
0.04 
11 
6.3 
7.1 
2.8 
1.1 


3 


February 


December 






3 


March 




0.07 

285 ' 

76 

35 
6.3 
1.4 


0.04 
.03 
.06 

2.4 

1.5 
.6 


.2 
633 

387 


April 


February 


May 


June 1-20 


April .... 


422 






172 

65 


The period.. 








8,730 










" 


The period . . 








t 


1,690 












1 





Note.— Discharge for 1903 obtained by interpolating between discharge measurements. 



538 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



MISCELLANEOUS MEASUREMENTS. 

Measurements of stream flow in the basin of Santa Ynez River at 
points other than those at which gaging stations have been main- 
tained are recorded in the following table: 

MiscellaneoiLS measurements in Santa Ynez River drainage basin for 1903-1918. 



Date. 


Stream. 


Tributary to- 


Locality. 


Dis- 
charge. 


May 23,1918 
June 14,1918 


Santa Ynez River... 
. ..do 


Pacific Ocean 

... .do 


300 feet above jtmction with Mono 

Creek. 
Just above junction with Mono 

Creek. 

do 

450 feet above mouth of Santa Cruz 

Creek. 
300 feet above mouth of Santa Cruz 

Creek. 
At San Lucas Bridge, 3J miles 

southeast of Santa Ynez. 
do 


7.0 


Aug. 1, 1918 
May 22,1918 

July 30,1918 

May 22,1918 

July 30,1918 
May 28,1914 


do 

do 


do 

do 


1.0 

67 


do. . 


do 


4 6 


do 


. . do 


104 


do 


do 


9.6 


do 


do 


Solvang 


89 


May 29,1914 
Sept. 25, 1905 
Apr. 19,1906 
July 25,1906 


do . 


do.... 


do 


89 


. ...do 


. ...do 




8.8 


do 


do 


. " do 


358 


do 


do 


do 


21 


Sept. 25,1906 
Nov. 10,1906 


do 


do 


do.... 


7.1 


do . 


do.... 




10 


Dec. 12,1908 


do 

do 


do 

. . do 


. ' do 


259 


Dec. 28,1913 


3 miles east of Surf 


53 


Jan. 5, 1914 


do 


do 


do 


101 


Jan. 9, 1914 


do 


. . .do 


do 


65 


Jan. 13 1914 


do 


do 


do 


58 


Jan. 15, 1914 


do 


do 


do 


294 


Jan. 18, 1914 


do 


do 


do.... 


22,700 
3 420 


Jan. 19 1914 


do 


do .. 


do 


Jan. 20, 1914 


do 


. ..do 


do 


l|440 
1,060 

577 


Jan. 21, 1914 


do. .. 


do 


do 


Jan. 24,1914 


do 


do 


.do 


Apr. 10,1903 


Blue Canyon Creek. . 
do 


Santa Ynez River.. . 
do.... 


Mouth . . 


n.i 


Apr. 22,1903 
Apr. 29,1903 
May 23,1918 


do 


11.7 


do 


.do 


do 


6.3 


Mono Creek. 


do 


50 feet above mouth . . 


21 


June 14 1918 


do 


do 


Just above mouth. 


8.3 


Aug. 1, 1918 
Apr. 11,1903 
Apr. 15,1903 
Apr. 21,1903 
Apr. 23,1903 
Apr. 28,1903 
Mav 23,1918 


do 


do... 


do 


2.0 


Amagusa Creek 0.... 


do 


Mouth. . 


6.2 


do 


. ...do 


4.5 


do 


.do 


do 


7.6 


do 


do 


do.... 


6.9 


do 


do 


do 


6.3 


Camuesa Creek 

do 


do 


do 


2.2 


June 14 1918 


do 


do. . . . . 


.7 


Aug. 1,1918 
Apr. 11,1903 
Apr. 15,1903 
Apr. 21,1903 
Apr. 23,1903 
Apr. 28,1903 
May 23,1918 

June 14,1918 


do 

RuizCreekf>... 


do 

do 


do 

do 


.4 
5.4 


do 


do 


do ... 


4.3 


. . do 


do 


. ...do 


7.0 


do. ... 


do 


do 


5.7 


do 


do ... 


do . - 


4.5 


Gidney Creek 

.. do 


do 

do 


Mouth. Stream enters from south 

1 mile below Camuesa Creek. 
do 


1.0 

.24 


Apr. 10,1903 
Apr. 22,1903 
Feb 1] 1914 


Trail Creek 


do 


Mouth 


1.4 


do 

Devils Canyon Creek 

do 

do : 


do 


do 


2.0 


do 


Mouth, near Gibraltar dam site.... 
do 


4.8 


Feb 12 1914 


do 


2.9 


Feb. 13^1914 


do 


do 


2.4 


Feb. 17 1914 


do 


. . do 


do 


2.1 


Apr. 2l'l914 
Jan. 13,1917 


do 


do 


do 


1.0 


do 


do 


do 


2.0 


Feb 7 1917 


-do .... 


. .do 


do 


.65 


Feb 9 1917 


do 


do 


do 


.6 


Feb. 10'l917 


do 


do 


do 


.5 


Feb. 28,1917 
Mar 14 1917 


do-..^ 

do 


do 

do 


do - 

do • 


9.7 
3.8 


May 24' 1918 
May 31,1918 
June 14 1918 


do 


do 


do . ... 


.6 


do 


do 


...do 


.3 


do . . 


..do ... 


do 


.13 


May 22' 1918 
July 30,1918 


Santa Cruz Creek 

do 


do 


300 feet above mouth 


20 


do 


do 


2.3 











a Believed to be Camuesa Creek on U. S. Geological Survey map. 

b Believed to be same as Gidney Creek, not named on U. S. Geological Survey map. 



SANTA BABBARA COUNTY. 



539 



MISCELLANEOUS MEASUREMENTS OF STREAMS IN SANTA 
BARBARA COUNTY. 

The following miscellaneous measurements have been made on 
streams in Santa Barbara County for 1889-1918: 

Miscellaneous measurements of streams in Santa Barbara County, Calif. 



Date. 


Stream. 


Locality. 


Dis- 
charge. 


Aug. -,1889 


Aguilar Creek 




Sec.-ft. 
0.12 






.08 


Do 


Armitas Creek. 




.04 


Do 






.23 


June 21,1902 


do 




.0036 


Aug. —,1889 




.08 






.15 


Do 


Canada Lares 




.08 


Do 






.31 


Do 


Canada Verde 




.08 


Do 


Capitan Creek 




.23 


Do 


Carpinteria Creek 

do 


1 mile above Placitas road .. 


.08 


June 16,1900 
Sept. 13, 1916 
Aug. 13,1897 
Sept. 6,1897 
Sept. 12, 1897 
Oct. 2, 1897 
Dec. 8,1897 
Jan. 26,1898 


do 


.003 


do 

Cold Spring Canyon Creek. . . 
do 




.1 


Falls 


.08 


do 


.06 


do 


do.... 


.09 


..do 


... do 


.09 


do 


do.... 


.09 


do 


do 


.11 


June 10,1900 
Mar. 22,1896 
Aug. -,1889 
Mar. 22,18% 

Aug. 13,1897 


do 


do.... 


.00 


do 

do 


do 


.00 
.23 


Cold Spring Canyon, City 

tunnel. 
do 




.06 




.66 


Sept. 6,1897 


do 




.31 


Sept. 12, 1897 


do 




.31 


Oct. 2,1897 


.. ..do 




.28 


Dec. 8,1897 


do 




.22 


Jan. 26,1898 


do 




.22 


Apr. 19,1898 
June 10,1900 


do 




.22 


do 


Portal 


.41 


June 14,1900 


do 


Station 29+97 


.02 


Do 


do 


do 


.04 


Aug. —,1889 






.23 


Do 


D OS P ueblos Creek 




.54 


Do 






.58 


Jan. 9, 1916 
Do 


do 


Proposed dam site 


4.2 


do 




4.2 


June 28,1917 
May 21,1918 

Aug. —,1889 


do 

West fork of Gaviota Creek. . 

Maria Ygnacio Creek .... 


200 feet above Gobemador Water Co. 's diversion. 
One-fourth mile above junction with Canada de 
las Cruces. 


1.4 
1.1 

.23 


Jan. 15,1888 
Jan. 24,1888 
Feb. 7, 1888 


Mission Creek . . . 


200 feet above dam 


.93 


do 

do 


do 

do 


2.80 
L37 


Mar. 16,1888 
July 26,1888 
July 13,1889 


do 

do 


do 

do 


2.23 
.36 


. ..do 


do 


.43 


Aug. —,1889 


do 


do .... 


.46 


Sept. 1,1889 
June 11, 1892 
June 17, 1900 


do 

do 

do 


do 

do 

do 


.32 
.36 
.05 


Aug. —,1889 


Padero Creek 




.31 


Do 


Rincon Creek.. 




.12 


June 16,1900 
Aug. —,1889 


..do 




.03 


San Jose Creek 




.27 


Do 


San Pedro Creek... 




.08 


June 17,1900 
Do 


San Roqui Creek 


Above tunnel 


.03 


do 


Below tunnel 


.03 


May 2, 1900 


do 


Station 6, opposite tunnel 


.04 


Do 


do 


Station 8^ opposite tunnel 


.02 


Do 


. ...do 




.08 


June 21,1902 


do 


do 


.25 


Do 


do 


TJp.lnw tnnnel 


.009 


Do 


do 


Station 44, opposite tunnel 


.011 


Do 


do 


Station 65^ opposite tunnel 


.0063 



540 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 
Miscellaneous measurements of streams in Santa Barbara County, Calif. — Continaed. 



Date. 


Stream. 


Locality. 


Dis- 
charge. 


Nov 2 1899 


San Ysidro Creek 


Above dam 


Sec.'ft. 
0.06 


Dec. 3, 1899 
Mar. 6 1900 


....do.. 


do . .. 


.15 


do 


do .... 


1.00 


Mar. 19,1900 


do....... 


do 


.35 


June 16,1900 


do 


do. . - 


.07 


Aug. —,1889 
June 16,1900 
Aug. —,1889 
June 16,1900 


Santa Monica Creek 




.23 


do .: 




.11 


Tecoiote Creek 




.27 


Toro Canyon . . . 




.05 









SANTA MARIA RIVER BASIN. 

GENERAL FEATURES. 

Santa Maria River drains the northern slope of the San Rafael 
Mountains and a smaller area of foothill country north of that range. 
It flows westward, finally discharging its waters into the Pacific 
Ocean at Guadalupe, about 25 miles south of San Luis Obispo. Its 
flow is torrential; it is subject to floods of short duration during the 
rainy period, but is practically dry during the summer. It has 
numerous tributaries, the most important of which is the Sisquoc, 
which enters it about 12 miles above the town of Santa Maria. The 
country in this basin consists of rolling foothills, except the hi^er 
portions of the San Rafael Mountains, which reach elevations of 
6,000 to 8,000 feet. The river breaks from the foothills at a point 
where it is joined by the Sisquoc and flows through the flat country 
of the Santa Maria Valley for about 25 miles until it joins the Pacific 
Ocean. The rocks in this basin consist of shale, sandstone, and 
conglomerate, which are covered by a heavy clay soil. There is a 
considerable growth of timber on the higher parts of the San Rafael 
Mountains, but over most of the area the growth of timber is light, 
and large areas are covered v/ith brush and grass. Pasturage is car- 
ried on extensively throughout the basin. There are no diversions 
along this stream for irrigation, although tunnel work has beeen 
attempted above Santa Maria for developing underground water, 
with poor results. Numerous wells in the vicinity of Santa Maria 
produce considerable' water for irrigating land in that locality, the 
soil being very deep and exceptionally good, susceptable of the highest 
cultivation. The mean precipitation in this basin is probably about 
25 inches. The greatest rainfall occurs on the lower elevations near 
the coast. The higher elevations receive some snowfall, which melts 
early in the spring and does not tend to keep up the flow of the streams 
through the summer. 



SANTA MARIA RIVER BASIN. 



541 



GAGING-STATION RECORDS. 

SANTA MARIA RIVER NEAR SANTA MARIA, CALIF. 

Location. — At Dutard ranch, just below Buckhorn Canyon and above Alamo Creek, 
21 miles by highway northeast of Santa !Maria, Santa Barbara County. 

Drainage area.— Not measured. 

Records available. — October 22, 1903, to December 31, 1905. 

Gage.— Inclined staff fastened to a rock ledge on right bank just below mouth of 
Buckhorn Canyon. 

Discharge measurements. — Made by wading at low and medium stages; high- 
Avater measurements by floats near gage. 

Channel and control. — Sand and gravel; fairly permanent. Right bank is high 
and rocky; left bank low and covered with scattering trees, not subject to overflow 
Channel slightly curved for 300 feet above and curved for 1,000 feet below gage. 

Diversions. — No information. 

Regulation. — No information. 

Accuracy. — Records fair. 

Discharge measurements of Santa Maria River near Santa Maria, Calif., for 1903-1906. 



Date. 


Made by— 


Gage 
height. 


Dis- j 
charge. 


Date. 


Made by— 


Gage 
height. 


Dis- 
charge. 


1903. 
Aug. 26 
Oct. 22 

1904. 
Feb. 18 


W. B. Clapp 


Feet. 


Sec.-ft. 

15.5 
a 220 
499 


1905. 
Feb. 2 
Mar. 
21 

1906. 
Feb. 23 
June 6 
Nov. 7 


E. C. La Rue 


Feet. 
3.30 
2.70 
1.20 

.90 

b2.20 

1.70 


Sec.-ft. 
80 


.--.do- 

do 

J. A. Thompson 

do 


1.97 

2.65 
3.60 
4.00 


0. W. Peterson 

do 

R. S. Hawley 


47 
67 

17.9 


Mar. 12 
24 


. do 

do 


11.9 
4.9 













a Float measurements. b Zero of gage lowered 2 feet. 

Daily discharge, in second-feet, of Santa Maria River near Santa Maria, Calif., for 1903-4- 



Day. 


Oct. 


Nov. 


Dec. 


Jan. 


Feb. 


Mar. 


Apr. 


May. 


June, 


1903-4. 
1 




0.8 


0.8 
.8 
.8 
.9 
1.0 
L5 
1.7 
2.0 
2.0 
2.0 

2.3 
2.5 
2.6 
2.8 
2.9 

3.0 
3.0 
3.2 
3.2 
3.2 

3.4 
3.4 
3.4 
3.6 
3.8 
4.2 
4.. 4 
4.4 
4.6 
4.6 
4.8 


5 

5 
5 

5 
5 
5 
5 
5 
5 
5 
5 
5 
5 

5 
5 

7 
7 

7 

7 
7 
7 

7 
7 
7 
7 
7 
7 
7 
7 


■ 

7 
7 
7 

10 
10 
10 
10 
8 
8 

10 
10 
9 

70 
18 
16 
13 
12 

10 
10 
9 

8 

7 

7 
27 
13 


13 
12 
12 
10 

.8 

7 
7 
6 
6 
6 

18 
220 

53 
140 

27 

16 
13 
10 
7 

10 
8 
8 
53 
27 
53 

18 
22 
13 
40 
18 
13 


14 
13 

8 

5 

4.4 

3.0 
2.5 
2.1 
1.5 
1.5 

1.5 

1.5 

1.5 

1.5 

1.5 

1.5 

1.5 

1.5 

3.0 

7 

5 

5 

3.0 

3.0 

3.0 

5 

7 

6 

3.0 

3.0 


3.0 
3.0 
3.0 
2.8 
2.5 

2.5 
2.5 
2.5 
2.0 
1.5 

1.0 
LO 
1.0 
.5 
.5 
.4 
.3 
.2 
.2 
.3 
.3 
.3 
.3 
.3 
.3 
.3 
.2 
.2 
.2 
.2 


0.2 


2 




.2 


3 






2 


4 






2 






.8 


.2 


6... . 






7 


1 


.2 


8 - 






.2 


9 






.2 


10 




.8 


.2 


11 




2 


12 






.2 


13 






2 


14 








15 




.8 


.2 


16- - 




17 






.2 


18- -. 






2 


19 








20 




.8 


2 


21 




.2 


22 


6.8 

..8 
.8 
.8 
.8 
.8 
.8 
.8 
.8 
.8 


."s" 

."s" 


.2 


23. .. 


2 


24 


.2 


25 


.2 


26 


.2 


27 




28- .. 


.2 


29 


,2 


30 


.2 


31 _ 


.2 



Note: No record July 1 to Sept. 30, 



542 SURFACE WATER OF PACIFIC SLOPE, SOUTHERIT CALIFORNIA. 

Daily discharge, in second-feet, oj Santa Maria River near Santa Maria, Calif., for 
1903-4— Continued. 



Day. 



Oct. 


Nov. 


Dec. 


450 


10 


11 


175 


10 


12 


175 


10 


12 


175 


10 


13 


175 


10 


13 


175 


10 


14 


242 


10 


14 


325 


10 


14 


84S 


10 


14 


362 


10 


13 



Day. 



Oct. 


Nov. 


Dec. 


400 


10 


14 


175 


11 


16 


53 


12 


16 


10 


12 


17 


10 


11 


17 


9 


11 


17 


9 


11 


17 


9 


11 


18 


9 


11 


17 


9 


11 


18 



Day. 



Oct. 



1904 

1 

2 

s 

4 

5 

6...... 

7 

8 

9 

10...:.- 



1904, 

11 

12 

13 

14 

15 

IG 

17 

18 

19 

20 



1904 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 



18 
18 
19 
18 

19 

20 
20 
18 
18 
18 
53 



Monthly discharge of Santa Maria River near Santa Maria, Calif , for 1903-1905. 



1903-4. 
October 22-31.. 

November 

December 

January 

February 

March 

April 

May 

Juiie 



The period. 



1904-5. 

October 

November. . 
December . . 
January 



Discharge in second-feet 



Maxi- 
mum. 



450 
12 
53 

122 



Mini- 
mum. 



6 
1.5 



0.8 
.8 
2.8 
5.9 
12.2 
28.2 
4.0 
1.1 



109 
10.7 
17.3 
22.5 



Rim-off 

(total 



acre- 
feet). 



16 
48 
172 
363 
702 
1,734 
238 
68 
12 



3,350 



6,702 

637 

1,064 

1,384 



1904-5. 

February 

March 

April 

May 

June 

July 

August 

September... 



The year. . 

1905. 

October 

November 

December 



The period. 



Discharge in second-foet. 



Maxi- 
mum. 



1,915 

10,000 

18 

.74 



Mini- 
mum. 



361 
574 
14.5 
15.5 
5.9 
5.0 
2.7 
1.6 



95.0 



5. 4 
8.6 
11.7 



Run-off 

(total 



acre- 
feet). 



20,050 
35,290 
863 
953 
352 
307 
166 
96 



332 

512 
719 



MISCELLANEOUS MEASUREMENTS. 

Measurements of stream flow in the Santa Maria River basin, at 
points others than those at which gaging stations have been main- 
tained are recorded in the following table: 

Miscellaneous tneasurements in Santa Maria River drainage basin. 



Date. ' Stream. 

i 


Tributary to- 


Locality. 


Dis- 
charge. 


Sept. 9, 1911 
Aug. 25, 1903 
Oct. 23, 1903 


Santa Maria River 

Sisquoc River . 


Pacific Ocean 


Wagon bridge at Santa Maria. 
Sisquoc ranch ... 


Sec.-fl. 
Dry 


Santa Maria River 

do 


1.1 


do 


do 


Dry 













SURFACE WATER OF PACIFIC SLOPE, SOUTHERN" CALIFORI^IA. 543 



FLOODS. 

RECORDS OF FLOODS. 

Southern California is subject to sudden and severe floods. The 
streams are comparatively short and grades are very steep from the 
headwaters to the mouths of the canyons. The channels from the 
canyons to the sea are usually broad, shallow, and comparatively flat 
and do not have sufficient capacity to carry the larger floods. iVs a 
result the streams overflow their banks and readily form new channels 
in the porous, sandy soil. (See descriptions of river basins.) 

There are three important factors depending on precipitation in 
the production of floods in southern California — the interval between 
the last rain and the flood, the intensity of the rainfall, and the total 
rainfall for the storm. 

The following table shows the frequency of floods in southern 
California since 1878: 

Floods in vicinity of Los Angeles, Calif., for the 37 years 1878-1914.^ 





Precipi- 






Date. 


tation in 
24 hours 
(inches). 


Flood 
character. 


Remarks. 


Jan. 16,1878 


1.16 


Light 


Bridges washed av/ay. 
Do. 


Feb. 19, 1878 


1.33 


Moderate 


Dec. 20, 1879 


4.34 


do 


Mountain streams swollen. Bridges washed away. Rail- 
way travel suspended. 


Dec. 20, 1880 


2.26 


do 


Streets almost impassable. 


Feb. 17, 1884 


3.56 


Heavy 


Severe flood. Great amount of damaqe. (Harbor silted.) 


Mar. 9, 1884 


2.67 


do 


Los Angeles River in flood. Houses washed away. 
Lower portion of city under water. Flood quite severe. 


Jan. 19, 1886 


3.77 


do 








Several lives lost. 


Feb. 16, 1887 


3.94 


Moderate.... 


Severe flood, but not so bad as last year. Lower part of 
city flooded. 


Jan. 4, 1888 


3.39 


do 


Several washouts in vicinitv. 


Dec. 23, 1888 


2.72 


do 


Many washouts. Streets flooded. Damage not commen- 
surate vnt\\ severity of storm. 


Mar. 17, 1889 


2.53 


Light 


Washouts. Streets in bad condition. River did not 
overflow. 


Oct. 23, 1889 


3.62 


Moderate.... 


Washouts on railroads. Unprecedented rainfall for this 
time of year. Streets flooded. 


Dec. 12, 15, 1889 


4.30 


Heavy 


Traffic paralyzed by washouts. Streets flooded. 


Dec. 25, 1889 


3.82 


do 


The flood was scarcely less severe and disastrous than that 
of 1884. (Harbor silted.) 


Jan. 26, 1890 


4.17 


do 


Flood. Streets turned into rivers. Traffic suspended. 
(Harbor silted.) 


Feb. 23, 1891 


2.75 


Moderate.... 


Many washouts. Bridges carried awav. River high. 


Mar. 21, 1893 


2.82 


do 


Streets flooded. 


Dec. 21,1894 


1.33 


Light 


Do. 


Jan. 17, 18, 1895 


1.73 


-...do 


Do. 


Dec. 28, 1896 


1.22 


do 


Do. 


Jan. 14, 15, 1897 


1.57 


do 


Do. 


Feb. 20, 1897 


2.02 


do 


Do. 


Nov. 21, 1900 


3.79 


Moderate.... 


Flood. 


Feb. 6, 1901 


2.55 


Light 


Streets flooded. 


Oct. 27, 1901 


1.79 


do 


Streets flooded. Railroad traffic temporarily suspended. 


Nov. 11,1902 


1.95 


do 


Streets flooded. 


Mar. 25, 1903 


3.35 


Moderate 


Do. 


Feb. 4, 1905 


2.25 


Light 


Do. 


Mar. 13, 1905 


2.41 


Moderate. . . . 


San Gabriel and Santa Ana rivers very high. Streets 
flooded. Traffic interrupted. 


Tan. 19, 19g6 


2.20 


Light 


Streets flooded but no serious damage. 


Mar. 20, 1906 


1.75 


Moderate 


Los Angeles River higher than for many years. Streets 
inundated. 


Jan. 7, 8, 1907 


1.64 


Light 


Streets flooded. 


Jan.2i, 1908 


1.76 


do 


Do. 


Jan. 21, 22, 1909 


3.17 


Moderate. . . . 


Streets flooded. Traffic interrupted. 


Dec. 31, 1909. 


1.99 


do 


Streets flooded. 


Jan. 28, 1911 


2.97 


do 


Do. 


Mar. 9, 1911 


1.99 


Heavy 

Light 


Streets flooded. Traffic interrupted. (Harbor silted.) 
Streets flooded. 


Mar. 9, 12, 19"l2 


2.04 


Feb. 24,1913 


5.12 


Moderate 


Streets flooded. Traffic interrupted. 


Jan. 25, 1914 


2.60 


do 


Do. 


Feb. 18, 1914 


4.26 


Heavy 


Streets flooded. Traffic interrupted. Bridges washed 
away. (Harbor silted.) See PI. XVLI, A, p. 492. 



oCarpenter, Dr. F. A., Flood studies at Los Angeles: Monthly Weather Review, vol. 42, No. 6, June, 1914. 



544 



SIJKFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



To make the record complete the floods of January 17 and 27, 1916, 
should be added to the above table. Records of run-oif , precipita- 
tion, damage to property, and general information regarding these 
floods were published by the Geological Survey in Water-Supply 
Paper 426, ''Southern California floods of January, 1916," by H. D. 
McGlashan and F. C. Ebert. The following table gives the maximum 
discharge, for the flood of 1916 for most of the important streams in 
southern California: 

Cre&t discharges, in second-feet, of streams in southern California for January, 1916. 



Station. 


Date. 


Time. 


Gage. 
height 

(feet). 


Drainage 

area 
(square 
miles). 


Dis- 
charge. 


Dis- 
charge 

per 
square 
mile. 


Cottonwood Creek at Morena reservior . . 


Jan. 27 
. do.. . 


4-6 p. m ... 




120 
98.0 
09.8 
43.7 

112 

135 

172 

181 

102 
102 
189 

375 
434 

12 

74.9 
3.55 

53.4 

53.4 
110 
110 
299 

57.3 
209 
209 
322 
565 
565 
189 


15,356 
a 23, 500 
18, 100 
9,870 
24,295 
27, 530 
43,002 
45,500 

4,710 

15,800 

6 36,300 

70,200 
75,000 

2,393 
18,600 
668 
10, 600 
21,100 
14, 300 
28,400 
72, 100 

7,140 
21, 400 
58, 600 
75, 000 
40, 000 
95, 600 
29, 100 
40,000 
16, 000 
30, 000 
14,000 

9,550 

40,000 
7,268 
31,113 

3,150 
6,215 
18,600 


128 


Otay River at Lower Otay reservoir 

Jamul Creek near Otay . . 






238 


do 






259 . 




.. do 






226 • 


SAweetwater River near Dehesa 


do . . 






217 




...do 






204 


Sweetwater River near Jamacho 


do.. . 






250 


Sweetwater River at Sweetwater reser- 


...do.... 

Jan. 18 
Jan. 28 
Jan. 27 

...do 

...do.... 

...do.... 

do .. 


.4.30-5.30 p. m.. 




251 


voir. 

San Diego River at diverting dam 

Do 


6 a. m 




46 






155 


£an Diego River at Capitan Grande 
dam site. 

San Diego River near Santee 

San Diego River at San Diego 

Boulder Creek at Cuyamaca reservoir . . 






192 


7 p. m 


25.1 


187 
173 


6 p. m 




199 


San Vicente Creek at mouth 






248 


Swltzer Canyon at San Diego 

Santa Ysabel Creek near Mesa Grande . 


...do.... 
Jan. 17 
Jan. 27 
Jan. 17 
Jan. 27 

...do.... 

...do.... 
Jan. 17 
Jan. 27 

...do.... 
Jan. 17 
Jan. 27 
Jan. 27 
do 






188 






199 


Do 




11 


395 


Santa Ysabel Creek near Ramona 


9 p. m 


130 


Do 


7 p. m 




258 


San Dieguito River at Carroll dam site. 
Santa Maria Creek near Ramona 


1-3 p. m 

5pm 


21.2 

15.9 

12.8 

18 

18.1 


211 
125 


San Luis Rey River near Mesa Grande. 
Do .. . . 


1.45p.m 

4.30 p. m...... 


117 
280 


San Luis Rey River near Pala 

San Luis Rey River at Oceanside 

Do 


233 
71 


9.30 p. m 




109 








154 












Jan. 18 


9 40 a. m 














108 
717 

65.8 

222 


278 


San Jacinto River near Elsinore 

South Fork of San Jar-into River at 


Jan. 28 
Jan. 27 

Jan. 18 


11 a. m 

4 p. m 


19 


19.5 
145 


Hemet reservoir. 


7 a. m 


12 


180 








Los Angeles River near Dorainguez 

Junction. 
Arroyo Seco near Pasadena 












Jan. 17 


9.30 a. m 


9.3 


16.4 


192 




Jan. 17. 


1 i 18.7 


216 













a Reported by George Cromwell, city engineer, San Diego, Calif. (See Engineering News, vol. 75, No. 
i.5,p. 718.) 
b Mean of two estimates computed from cross sections and slope data. 

FLOOD OF 1914.1 

DISTRIBITTION OF RAINFALL. 

From February 15 to 25, 1914, precipitation was general over a 
large part of California. In the vicinity of Los Angeles the storm 
period extended from February 18 to 21, the total precipitation in 

' Abstracted from reports of the board of engineers for flood control to the board of supervisors, Los Angeles 
County, and records of the United States Weather Bureau. 



FLOODS. 



645 



the four days exceeding 19 inches at stations in the mountains and 
about 3 inches on the coast. This storm was preceded by heavy 
general precipitation in January that thoroughly soaked the ground. 
The monthly departure from the normal for January was much 
greater than that for February, but the precipitation in January 
covered 10 to 12 days, whereas that for February occurred within 4 
days. The hourly distribution of the rainfall as recorded by the 
United States Weather Bureau at the station at Los Angeles and 
the total rainfall for the storm at 40 stations in the Los Angeles dis- 
trict are shown in the f ollowing^tables : 

Hourly precipitation, in inches, for Feb. 18-21, 1914, at Los Angeles, Calif. 

[From unpublished records of United States Weather Bureau.] 
A. M. 



Date. 


1 


2 


3 


4 


5 


6 


' 




9 


10 


11 


12 


Feb. 18 


0.07 
.01 
.07 
.02 


0.06 
.01 
.11 

.06 


Tr. 
.01 
.04 
.03 


0.01 
.02 
.11 

.01 


0.08 
.07 
.04 
Tr. 


0.24 
.03 
Tr. 

.02 


0.33 
Tr. 
Tr. 
.01 


0.07 


0.11 


0.15 


0.02 
Tr. 
Tr. 


0.06 


19 


.01 


20... 










21 






















P. M. 


Feb. 18 


0.50 


1.49 


0.29 


0.28 


0.35 


0.04 
Tr. 
.21 


0.08 
.02 
.36 


0.01 
.02 
.25 


0.01 
.22 
.15 


Tr. 
.25 
.01 


Tr. 
.05 
.06 


0.01 


19 


.22 


20 




Tr. 


.24 


.03 


.01 


Tr. 


21 . 






















1 









Total precipitation for storm of Feb. 18- U, 1914, at stations in the vicinity of Los 

Angeles, Calif. 

[From flood studies at Los Angeles, l.y Dr. Ford A. Carpenter, in Monthly Weather Review, vol. 42, 

No. 6, June, 1914.] 



Station 


Rainiall. 


Station. 


Rainfall. 


Avalon 


Inches . 
3.45 
13.26 
10.83 
4.81 
10.92 
17.85 
4.31 
8.63 
4.85 
6.44 
9.41 
5.68 
6.75 
3.24 
7.07 
11.10 
19.20 
19.40 
3. 55 
3.90 


Palo Verde 


Inches. 
3.87 


Azusa 


Pasadena 


11.44 


Bear Valley dam 




9.60 


Chine 


Redlands 


4 26 


Claremont 




3.51 


Cleghorn Canyon 




2 79 


Corona 




12 25 


Devil Canyon 




4.71 


East Highlands 


San Dim as 


11 29 


Fillmore 




8 88 


Garvanza 


San Pedro 


2.03 


Highland 


Santa Monica 


5 50 


Hollywood 


Sierra Madre 


15.56 


Long Beach 




16 29 


Los Angeles 


Tustin 


3 52 


Mill Creek. 


Valyermo, post office 

Venice 

Ventura 

Walnut 

Whittier 


5.57 


Mount Lowe 


5 16 


Mount Wilson 


10 21 


Orange . 


t) 96 


Palm Springs 


5.02 







142131°- 



-35 



546 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



DAMAGE DUE TO FLOOD. 

The storm of February 18-21, 1914, coming when the ground was 
already thoroughly soaked, produced a flood in the vicinity of Los 
Angeles that caused the most damage, but was not the greatest in 
history. The loss by flood in Los Angeles County in 1914 has been 
estimated by the board of engineers for flood control at $10,000,000, 
exclusive of damage to the harbor, due to silting. 

DETERMINATION OF FLOOD FLOW. 

The flood left high-water marks which were still visible when the 
board of engineers for flood control was organized in April, 1914, and 
steps were taken immediately to obtain data from which the flood 
flow at various points could be computed. The appearance of the 
streams after this flood is shown by Plate XVII (p. 492). Under the 
direction of J. B. Lippincott, of the board of engineers for flood 
control, sections were selected and data and information collected for 
computing flood flow. The results obtained for sections on Los 
Angeles and San Gabriel rivers and tributaries are shown in the fol- 
lowing table: 



Estimated flood discharge of streams in vicinity of Los AngeU 
uary and February, 1914. 

Los Angeles River basin. 



Calif , from storms of Jan- 





Location of section. 


Drainage area. 


Value, 
of 


Discharge in 
second-feet. 




Square 
miles. 


Per cent 
moun- 
tainous. 




Stream. 


Flood. 


Per 
square 
mile. 


Los Angeles River 

Do 


200 feet below bridge on Lanker- 

shim Boulevard. 
200 feet below filtration galleries.. 
Below Main Street Bridge 


304.3 

334.8 
534.1 
30 
118 
6.5 

22.3 

21.9 
30.5 
38.6 

42.7 
49.5 


72.6 

72.4 

68 
100 
100 

60 

100 


0. 0375 

.0375 

.025 

.05 

.0375 

.0275 

.03 

.03 
.025 
.04 

.045 
.025 


16,780 

24,420 
31,140 

5,400 
13, ^00 

4, 620 

4,100 

7,700 
11,400 
14, 136 

7,610 

5,880 


55.2 
73.2 


Do 


58.2 


Pacoima Creek 


1,000 feet below mouth of canyon. . 
Mouth of canyon 


180 


Big Tujunga Canyon 

Sunland Wash 


115 


Below road from Sunland up big 
Tujunga Canyon. 

Below bridge on road from San 
Fernando up Tujunga Valley. 

i mile below Verdugo Park 

About 300 feet below Devils Gate . . 

About 500 feet below the Colorado 
Street Bridge. 

North end of San Pasqual Avenue. 

Between Pasadena Avenue and 
Santa Fe Ry. bridge near Ave- 
nue 36. 


712 


Little Tujunga Canyon. . 
Verdugo Creek 


184 
352 


Arroyo Seco 


88.5 
75.2 

70.3 


374 


Do 


366 


Do 


178 


Do 


119 









FLOODS. 



547 



Estimated flood discharge of streams in vicinity of Los Angeles, Calif., from storms of 
January and February, 1914 — -Continued. 



San Gabriel River basin. 





Ivocation of section. 


Drainage area. 


Value 
of 


Discharge in 
second-feet. 


Stream. 


Square 
miles. 


Per cent 
moun- 
tainous. 


Flood. 


Per 

square 
mile. 


San Gabriel River 

Do . 


2 miles above mouth of San Ga- 
briel Canyon. 

Below mouth of Rogers Canyon. . . 

Dunlap road crossing, | mile be- 
lov/ Whittier Boulevard Brid^'e. 

300 feet above point where wash 
begins to spread, northeast of 
Monrovia. 

500 feet above Foothill Boulevard 
below junction of little Anita 
Canyon. 

Mouth of canvon . . 


220 
226.68 


100 
100 


0. 035 

.035 
.030 

.05 

.045 

.035 
.05 

.05 
.035 

.025 


25,260 

26,680 
16,000 

4,070 

3, 168 

2,950 
1,070 

1,018 
4,590 

20, 9:50 


115 
117 


Do 




Sawpit Canyon 


7.37 

18.17 

18.58 
7.56 

3.34 
12.5 


100 
100 

too 

100 

100 
82.4 


550 


Santa Anita Cnnyon 

San Dimas Canvon 


174 
159 


Big Dalton Canyon 

Little Dalton Canyon . . . 


Mouth of canyon, opposite spill- 
way of Glendora water supply. 


142 

305 


Eaton "Wash. .. ". 


Between Foothill Boulevard and 

Santa Fe Ry. bridge. 
About 500 feet beloAv Foster Bridge 

on Downey Boulevard. 


367 


■Rio Hondo 













Ballona Creek basin. 



Ballona Creek.. 



About 500 feet below the wagon 
bridge on Higuera or Valley road. 



The following measurements have recently been furnished for pub- 
lication by F. C. Finkle, consulting engineer, Los Angeles, Calif.: 

Rio Hondo at El Monte. — A measurement was made with a cur- 
rent meter at bridge west of El Monte January 30, 1914, discharge 
476 second-feet. There was no appreciable discharge in the channel 
of San Gabriel east of El Monte. 

Rio Hondo at WJiittier Boulevard bridge. — ^A measurement was 
made by floats on February 20, 1914. The channel was 630 feet wide ; 
area of cross section, 3,377 square feet; discharge, 19,959 second- 
feet. The stage was about 1.1 feet lower than at maximum stage. 
The slope at the crest of the flood was measured from 500 feet above 
to 500 feet below bridge, and found to be 2.39 feet. The section of 
channel was described as follows : 

Westerly 155 feet, the channel contained considerable small brush, which v/as not 
washed out, but bent over by its velocity, making the tops of much of it visible in the 
stream. The remaining 35 feet to the span bridge was sand and gravel bottom. This 
westerly portion of 190 feet altogether was a pile bridge. There were three 70-foot 
spans beyond this, through which the water moved very freely, but the bottom of the 
channel was rocky and irregular and some eddies were caused by the obstruction of 
the bridge piers. Beyond the span the banks had washed away and there was water 
130 feet wide flowing on a sandy surface. 

The value of ''n" in Kutter's formula was selected as 0.04, giving 
a discharge of 26,806 second-feet for the crest of the flood. 



648 SUEFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 



The following results were obtained from slope measurements and 
cross sections taken March 17, 1914: 

Flood measurements. 



Stream. 


Area 

(square 

feet). 


Mean 
hydraulic 

radius 
(feet). 


Slope. 


'•n.-' 


Mean 
velocity 
(feet per 
second.) 


Discharge 
(second- 
feet). 


San Jose Creek near Old Workman Mill 
ranch . . 


1,162 
626 
585 


4.8 
4.6 
3.4 


0. 00304 
. 00202 
. 003998 


0.03 
.03 
.025 


7.81 
6.19 
8. .50 


9 073 




3^875 
4,970 


San Dimas Creek northwest of Bassett. . 





Lytle Creek at Foothill Boulevard. 






Date. 


Time. 


Discharge 
(second- 
feet). 


Date. 


Time. 


Discharge 
(second- 
feet). 


Feb. 19, 1914 




4, 711 

1,088 

743 

812 


Feb. 20, 1914 

Feb. 21, 1914 

Do 




812 


Do. 


8.30 a. m 


12.15 a. m 


15,958 


Do 


5 p. m 


6 45 a m 


1 555 


Feb 20 1914 


10 30 a m 


Do 


4.30 p. m 


1,003 









Lytle Creek at mouth of canyon. 



Feb. 1,1914... 
Feb. 10,1914.. 
Feb. 19,1914.. 

Do. 

Feb. 20, 1914.. 



12 a. m 

10 a. m 

10.30 a.m. 
5 p.m.... 



118 

53 
977 
771 

14, 740 



Feb. 20, 1914.. 

Do 

Feb. 23, 1914.. 
Feb. 28, 1914.. 



5p. m 

10.30 p.m.. 
11.30 a.m.. 
12 a. m 



4,313 
9,562 

727 
299 



CAJON CREEK NEAR DEVORE, CALIF. 

A gaging station was maintained during February, 1914, on Cajon 
Creek at Glen Helen farm, about a mile above Devore. At this point 
the stream flows near the north side of the w^ash and against the steep 
bank. Gage heights were observed throughout the month and dis- 
charge measurements made by current meter or computed from slope 
and cross-section data. The discharge shown in the following table 
was averaged over periods between which there was no radical varia- 
tion in flow. 

Discharge of Cajon Creek near Devore, Cali/., for February, 1914. 

Second-feet. 

Feb. 1, midnight to Feb. 17, noon 46 

Feb. 17, noon to Feb. 19, 10.30 a. m 411 

Feb. 19, 10.30 a. m. to Feb. 20, midnight.... 700 

Feb. 20, midnight to Feb. 20, 2.30 p. m 1,650 

Feb. 20, 2.30 p. m. to Feb. 20, 7.00 p. m 3,500 

Feb. 20, 7 p. m. to Feb. 20, 11 p. m 6, 330 

Feb. 20, 11 p. m. to Feb. 21, 1.30 a. m 3,360 

Feb. 21, 1.30 a. m. to Feb. 21, 5 a. m 6, 330 

Feb. 21, 5 a. m. to Feb. 21, 7.30 a. m 3,500 

Feb. 21, 7.30 a. m. to Feb. 22, noon 1, 423 

Feb. 22, noon to Feb. 28, midnight 123 

Mean daily discharge 332 

Total run-off, in acre-feet. - 18, 400 



FLOODS. 549 

FLOOD OF 1891. 

The following records are abstracted from notes furnished by F. C. 
Finkle, consulting engineer, Los Angeles, Calif. All measurements 
were made and data collected by Mr. Finkle or by assistants under 
his direction. 

Lytle Creek at San Bernardino, Calif. — The maximum stage at foot 
of F Street occurred between 8 and 8.30 a. m., February 23. As the 
crest of the flood was passing stakes were set along the northeast bank 
to mark extreme high water. On February 24 the slope was measured 
over a distance of 530 feet and a cross-section taken. Channel condi- 
tions were explained as follows: '^ Channel irregular but deepest in 
middle, and banks slightly crooked; much willow growth, plenty of 
large stones mixed with coarse gravel and large quantities of drift 
carried by water during flood." The discharge was computed as 
follows: Area, 3,617 square feet ; mean hydraulic radius, 3.2 feet; total 
slope of water surface, 5.49 feet; '^n" in Kutter's formula selected as 
0.04; coefficient C, 45.6; mean velocity, 8.3 feet per second; discharge, 
30,020 second-feet. 

Santa Ana River at moutli of canyon, opposite Morton Creelc, near 
Mentone, Calif.— In the spring of 1892 the flood marks of February 
23, 1891, were still distinct. The slope was measured over a distance 
of 1,000 feet and a cross-section taken. The condition of the channel 
was described as follows : 

Channel irregular deepest portion shifting from left toward right bank within 
section 1,000 feet in length; banks not straight but well marked by driftwood on large 
boulders and in some sycamores and alders at margin of flood channel. Channel filled 
with large boulders from 1 to 4 feet in diameter and smaller rocks with much 
gravel packed between them; a few irregular gravel bars at upper right-hand side 
and lower left-hand side of 1,000-foot section, but top of these bars 2 feet or more 
below high-water mark indicated by drift on both sides of section. 

The discharge was computed as follows: Area, 4,712 square feet; 
mean hydraulic radius, 6.44 feet; slope, 0.01102; '^n" in Kutter's 
formula, selected as 0.05; coefficient C, 42.78; mean velocity, 11.4 
feet per second; discharge, 53,700 second-feet. 

Temescal Canyon ahove Cajalco Creelc at Harrington Narrows. — On 
May 7, 1891, the flood marks of February 23, 1891, were exammed 
for a distance of 620 feet, the slope was measured, and a cross-section 
was taken. Channel conditions were described as follows: Channel 
contained a great deal of growing timber in addition to being rocky 
and irregular. Only the small trees and brush were washed out and 
none of the large trees were destroyed, as they were standing at the 
time this survey was made. 

The discharge was computed as follows: xArea, 2,636 square feet; 
mean hydraulic radius, 6,937 feet; slope, 0.00824; ''n" in Kutter's 
formula selected as 0.05; coefficient C, 43.5; mean velocity, 10.4 feet 
per second; discharge, 27,420 second-feet. 

Elsinore Lake overflowed heavily on February 22 and 23, 1891, and 
there was still some discharge on May 7, 1891. 



550 SURFACE WATER OF PACIFIC SLOPE, SOUTHERN CALIFORNIA. 

San Luis Bey River 1 mile above Bonsall. — ^A few weeks after the 
flood the slope was measured over a distance of 1,000 feet on both 
sides of the stream and a cross-section was taken with a hand level. 
The channel was wide and had a sandy, gravelly bed. Practically 
all vegetation had been washed out except on a few small bars which 
were covered with willows and near the edge of the stream where 
the grass and willows had been laid down by the flood but not 
washed out. The flow had not been regular and parallel to the banks 
of the stream, but showed evidence of many cross currents and eddies. 

The discharge was computed as follows: Area, 17,242 square feet; 
mean hydraulic radius, 7.2 feet; slope, 0.0028; '^n" in Kutter's 
formula was selected as 0.04; coefficient C, 52.3; mean velocity, 7.43 
feet per second; discharge, 128,100 second-feet. 

The following observations were noted by Mr. Finkle. 

From the 17th and 18th of February to the 21st of February, inclusive, there was 
considerable rain in the valley with heavy snow in the mountains, extending from the 
Sa,n Gabriel River to the Mexican line. The snowfall was the hea^dest at three 
points, namely, in the area from San Antonio Peak to San Jacinto Peak, from the Santa 
Ana Mountains near Corona to the San Luis Rey River, including Palomar Mountain, 
and in the watershed tributary to the Tia Juana River near the Mexican bound- 
ary. I recall distinctly that when the warm rain on February 22 began the snow cover- 
ed the mountains near San Bernardino and Riverside down to the very foothills, 
reaching, in some places, as low in elevation as 1,200 feet above sea level. 

On February 27, 1891, the temperature seemed to change and the rain became much 
warmer so that the accumulated snow was suddenly melted and brought down the 
great flood, the peak of which culminated on the morning of the next day. In press 
clippings, which I have in my scrapbook, I find that the San Bernardino and River- 
side papers speak of snow down to the valley line on the morning of February 19, 1891. 
They also mention a rainfall of 4.53 inches in San Bernardino on February 21 and 22, 
and 17 inches of rainfall at Big Bear Valley in 24 hours on February 22. Other press 
clippings show the complete isolation of San Bernardino and Riverside from outside 
communication for a long time after this storm, and I personally recall that all railroad 
and highway bridges between Los Angeles and San Bernardino were out for at least 
two weeks. 

There was an extremely violent flood on the San Gabriel River, but I have no data 
from which to compute its volume. I recall, however, the first trip I made to Los 
Angeles, after communication by rail was restored, that the debris cone of the San 
Gabriel was completely littered with drift of all kinds, and that a large black bear, 
drowned and washed down in the flood, was lodged in a large amount of debris 
near the Santa Fe Railway crossing over the San Gabriel, and that the new channel of 
the river west of El Monte was cut to a width of a great many hundred feet in that storm, 
where it had only been about 75 feet before. At the Santa Fe and Southern Pacific 
crossings the San Gabriel had completely washed them out for a long distance across 
the country, requiring about two weeks to be replaced. The town of Azusa was 
entirely washed away and was reestablished in its present location after the flood. 

The flood of February 23, 1891, wag not as large in the Los Angeles River as the 
previous flood of December, 1889, but in every stream east of the Los Angeles River it 
was much larger. This is due to the fact that the flood of December, 1889, was from 
heavy rainfall coming suddenly, while the flood of February 23, 1891, was due to 
accumulated snow, melted by the warm rain, having much less precipitation than the 
storm of 1889. This heavy snowfall was mostly wanting on the watershed of the Los 
Angeles River, which explains why the flood was so much less severe than on other 
streams lying farther east. 



INDEX. 



A. Page. 

Absorption 360, 438, 475 

Acknowledgments 11-13 

Acre-foot, definition of 13 

Agua Caliente Creek near Warner Springs, 

Calif .- 202-203 

Aguilar Creek, Calif 539 

Agncultural ditch, Calif 435 

Agua Tibia Creek, Calif 232 

Alder Creek (Santa Ana basin) 253 

Alder Creek (Santa Clara basin) 496 

Aliso Creek, Calif 471 

Almond, Calif. , Temescal Creek near 151-153 

Alpine, Calif., South Fork of Cuyamaca Wa- 
ter Co. 's flume near 110-112 

South Fork of San Diego River near.. . 108-110 

Alvarado Creek, Calif 115 

Alvitrez ditch, Calif 356 

Anaheim and Santa Ana canal, Calif 356 

Anaheim and Fullerton canal, Calif 356 

Arlington , Calif. , Santa Ana River near 350 

Armas Creek, CaMf 539 

Armitas Creek, Calif 539 

Arroyo Burro, Calif 539 

Arroyo Carnero, Calif 539 

Arroyo diich, Calif 435 

Arroyo Seco (Los Angeles basin), flood rec- 
ords of 546 

miscellaneous measurements in 272-274 

near Los Angeles, Calif. , after flood of 1914, 

plate showing 492 

near Pasadena, Calif 457-464 

concrete well, house, and control on, 

plate showing 423 

Arroyo Seco ( Santa Margarita basin) 234 

Artificial controls 15-17 

Azusa, Calif., Duarte canal near 436 

Fish Fork of San Gabriel River near... 402-403 

Iron Fork of San Gabriel River near 403-404 

Rogers Creek near 421-422 

San Gabriel River above Fish Fork, near. 373 
San Gabriel River at headworks, near . . 374-375 

San Gabriel River near 375-402 

San Gabriel Water Co. 's canal near 436 

Southern California Edison Co.'s canal 

near 406-420 

tunnel diversion near 420-421 

Azusa canal near Azusa, Cahf 435 

Azusa-Covina canal near Azusa, Calif 435 

B. 

Baldwin ditch (Rio Hondo) 435-436 

Baldwin division (Santa Anita Creek) 436 

BaUona Creek, floo,d record of 547 

Banta ditch, CaUf 436 

Bernardo, Calif., San Dieguito River at and 

uear 140-146 



Bear Creek, Calif. (Santa Ana basin) 352 

Bear Creek, Calif. (San Gabriel basin) 434 

Bear Valley ditch, CaUf 356 

Bicknell, Calif. , San Timotes ditch at 357 

Big Dalton Canyon, flood record of 547 

Big Lake Creek near Warner Springs, Calif. . . 230 

Big Tujimga Canyon, flood record of 546 

Birch Oil Co.'s diversion, Calif 355 

Black Canyon Creek near Mesa Grande, 

Calif 148-150 

Bolen tunnel. See Redlands tunnel. 

Bonsall, Calif., Falbrook Creek at 232 

San Luis Rey River at and near. . . 192-198, 550 
Boulder Creek at mouth, near Lakeside, 

Calif 90-93 

miscellaneous measurements of 1 15 

near Julian, Calif 86-90 

Brea Canyon Creek, Calif 355 

Buena Vista Creek at Monkey Hill, Calif 230 

C. 

Cable Canyon Creek, Calif 354 

Cajon Creek, Calif 354 

near Devore, Calif 548 

California, stream flow in, investigations of. . . 10-11 

Campo, CaUf., Cottonwood Creek near 43 

Camulos ditch, Calif 497 

Canada Agua Caliente at Warner Springs, 

Calif 230 

Canada del Corral, Calif 539 

Canada del Rodeo, Calif 355 

Canada Lareo, Calif 539 

Canada Refugio, Calif 539 

Canada Verde, Calif 539 

Canada Verde Creek near Warner Springs, 

CaUf 202 

Capitan (El) Creek, CaUf 539 

Carpinteria, CaUf., Gobernador Creek near. . 505-507 

Carpinteria Creek, Calif 539 

Carrizo Creek near Warner Springs, Calif. . . 209-212 

Castaic Creek, CaUf 495 

CastiUo ditch, Calif 356 

Castle ditch, CaUf 355 

Cate ditch, CaUf 436 

Cattle Canyon Creek, CaUf 434 

Chino Creek at Rincon, CaUf 348-349 

Chocolate Creek, CaUf 115 

City Creek, CaUf 352-353, 361 

Clapp, WilUam B., work of 13 

Claremont, CaUf., E vey Creek near 354 

San Antonio Creek at diversion dam, 

near 342-343 

San Antonio Creek near 327-331, 343 

Southern California Edison Co.'s canal 

near 346-348 

Cold Creek Canyon, CaUf 539 

551 



552 



INDEX. 



Cold Spring Canyon Creek, Calif. , . . . 539 

Coldwater Creek (San Gabriel basin), Calif. . 434 

above mouth, Calif 404 

Coldwater Creek (Santa Ana basin) 327 

Coldwater Creek (Santa Clara basin) 496 

Colton, Calif., measurements in San Bernar- 
dino Valley above 3'o 1-371 

Conservation Commission, members of 12 

Control, definition of 14 

Controls, concrete, plates showing 16, 17 

Cook Creek near La Crescenta, Calif 472 

Cooperation 11-13 

Cottonwood Creek at Marron Valley, Calif. . , 43 

at Morena reservoir, Calif 43 

■ near Campo, Calif 43 

near Cottonwood, Calif 43 

near Dulzura, Caiif 24-36 

gaging station on, plate showing 493 

Coyote Creek, Calif 504 

Cuca Creek, Calif 231 

Cucamonga Creek, Calif 349, 3.54 

Current meters, Price, plate showing 14 

Cuyamaca Water Co., aid by 12 

Cuyamaca Water Co.'s flume at diverting 

dam, near Lakeside, Calif 93-99 

at diverting dam, near Lakeside, Calif., 

gaging station on, plate showing. 60 
at Los Coches Creek, near Lakeside, Calif., 

gaging station on, plate showing. 60 

miscellaneous measurements in 115 

near Lakeside, Calif. 99-108 

South Fork of, near Alpine, Calif 110-112 

Crafton canal, Calif., MiU Creek in canyon, at 

headworks of 280-285 

D. 

Dalton Creek, Calif 434,439 

Data, accuracy of 17-18 

explanation of 14 

Definition of terms 13-14 

Dehesa, Calif., Sweetwater River at and near. 54-58 
Del Mar, Calif., San Dieguito River near. . 146-148 

Santa Fe ranch ditch near 165 

Descanso, Calif., Ellis flume near 58 

Sweetwater River near 44-54 

Devil Canyon Creek, miscellaneous measure- 
ments in 354 

near San Bernardino, Calif 302-304 

Devore, Cahf., Cajon Creek near 548 

Dinsmore Creek, Calif 539 

Discharge, conversion of 18-19 

Dos Pueblos Creek, Calif 539 

Duarte, Calif., Fish Creek near 425-427 

Duarte canal near Azusa, Calif. 436 

Dulztu-a, Calif., Cottonwood Creek near 24-36 

Pine Valley Creek near 36-38 

Dulzura conduit at Barrett dam site, Calif., 

plate showing 493 

near Dulzura, Calif 39-43 

Durfee ditch, Calif 436 

Durkee ditch, Calif 355, 356 

E. 

East San Pasqual ditch, miscellaneous meas- 
urements in 165 

near Eseondido, Calif 153-154 

East Twin Creek. See Strawberry Creek. 



Page. 
Eaton Canyon Creek ( Los Angeles basin) . . . 474-475 

Eaton Canyon Creek ( San Gabriel basin) 439 

Eaton Creek near Pasadena, Calif 464-465 

near Pasadena, Calif., double concrete- 
boulder control on, plate show- 
ing 423 

Eaten Wash, flood record of 547 

EUis flume near Descanso, Calif 58 

El Monte, Calif., KiUon's pumping plant near 436 

Rio Hondo at 547 

Elsinore, CaUf., San Jacinto River near 318-321 

Temsecal Creek near 324-326 

Temescal Water Co.'s canal near 334 

Elsinore I -ake at Elsinore, Calif 321-323 

Equivalents, convenient 18-20 

Eseondido, Calif., East San Pasqual ditch 

near 153-154 

Guejito Creek near 155-156 

Santa Ysabel Creek near 133rl40 

West San Pasqual ditch near 157-159 

Eseondido Creek basin 165 

Eseondido Mutual Water Co.'s canal, miscel- 
laneous measurements in ... 231 

near Nellie, Calif 215-225 

E speranza, Calif. , Piru Creek at 495 

Pirn Land & Water Co.'s upper diversion • • 
near 497 

Yorba ditch at 357 

Evans ditch near Temescal, Calif. 356 

Evans lower ditch, Calif 366 

Evans upper ditch, Calif 3.56 

Evey Creek near Claremont, Calif 354 

Explanation of data 14-15 

F. 

Fallbrook Creek at B onsall, Calif. 232 

Farmer's ditch at Santa Paula, Calif 497 

FiUmore, Cahf., Santa Clara River at 483-484 

Fillmore Irrigation Co.'s ditch, Calif 497 

FUlmore Land & Water Co.'s canal. 497 

Fish Creek near Duarte, Calif 425-427 

near Duarte, Calif., concrete well and 
house for water-stage recorder on, 

plate showing 422 

Floods, records of 543-550 

Forest Home, Calif., Mill Creek at 285-29-1 

Forest Service, United States, aid by 12 

Foster, Calif., San Vicente Creek at. . . . 113-114, 115 

Frey Creek, Calif 232 

Friez water-stage recorder, plate showing 15 

Fuller ditch, Calif 35.5, 356 

G. 

Gaging station, typical, plate showing 14 

Gaging stations, conditions at 15-17 

list of. 20-22 

Gato Creek, Cahf 511-512 

Gaviota Creek, West Fork of 539 

GiUiland ditch, Calif. 3-55,366 

Gobernador Creek, miscellaneous measure- 
ments in 539 

near Carpinteria, Calif 505-507 

Goleta, Calif., San Jose Creek near 509-510 

Gopher Creek, Cahf ". 232 

Gorman Creek, Calif . 496 

Greenspot pipe line near Mentone, Calif... 273-280 
Grees ditch at Santa Paula, Calif 497 



INDEX. 



553 



Grossmont, Calif., La Mesa ditch near 113 

Gnmsky,C. E., work of 12 

Guejito Creek near Escondido, Calif 155-156 

Gurley printing water-stage recorder, plate 

showing 15 

H. 

" H " ditch near Riverside Narrows, Calif 356 

Haines Creek near Tujunga, Calif 455-457 

near Tujunga, Calif., concrete well, house, 

and control on, plate showing 450 

Hall, William Ham., and assistants, work of. . 12 
Harrington Narrows, Calif., Temescal Canyon 

at 549 

Highland canal at intake weir near Mentone, 

Calif 295-296 

Hot Springs Creek, Calif 496 

I. 

Indian Affairs Office, aid of 12 

J. 

"J " ditch near Riverside Narrows, Calif 356 

Jamacho Canyon, Calif., Sweetwater River at 58 

Jennie McGee Creek at Pala, Calif 232 

Julian, Calif., Boulder Creek near 86-90 

Jurupa canal, Calif 356 

K. 

Keller Creek, Calif 352 

Killon's pumping plant near El Monte, CaUf . 436 
L. 

La Crescenta, Calif., Cook Creek near 472 

I^ Crosse, Calif., San Antonio Creek at 504 

La Jolla, Calif., East Fork of Potrero Creek 

near 230 

Potrero Creek near. 230, 231 

W est Fork of Potrero Creek near 231 

La Jolla Creek, Calif 230 

Lake Hodges dam, San Dieguito River, plate 

showing 44 

Lakeside, Calif., Boulder Creek at mouth, 

near 90-93 

Cuyamaca Water Co.'s flume at diverting 

dam, near 93-99 

Cuyamaca Water Co.'s flume, near 99-108 

San Diego River at 65-78 

San Diego River at diverting dam, near. . 59-64 

La Mesa ditch near Grossmont, CaUf 115 

near La Mesa, Calif 115 

Libby ditch near San Luis Rey, Calif. 232 

Lippincott, Joseph B ., and assistants, work of 12 

Little Dalton Canyon, flood record of 547 

Little Dalton Creek, Calif 434 

Little Lake, Calif 436 

Little Santa Anita Creek, miscellaneous 

measurements in 475 

near Sierra Madre, Calif 468-470 

concrete well and house for water- 
stage recorder on, plate showing.. 422 

Little Sespe Creek, Cahf 496 

Little Temecula Creek, CaUf 232 

Little Tujunga Canyon, flood record of 546 

Little Tujunga Creek, Calif 472, 476 

Liveoak Creek, Calif 435 

Loma Abajo River, Calif 511 

Lordsburg Mesa, Calif., measurements in San 

Gabriel Valley...... 438 



Page. 
Los Angeles River above Los Angeles, Calif. . 440 

at the narrows, Calif .'.' 440 

diversions from 448-449 

flood records of 546 

miscellaneous measurements of 471 

Los Angeles River basin, general features of. . 439 

Lusardis Creek ; 230 

Lytle Creek at mouth of canyon near Rialto, 

CaUf 304-309 

at San Bernardino, CaUf 549 

flood measm-ements of 548 

miscellaneous measurements in 354, 361 

near San Bernardino, CaUf 309, 318 

M. 

McGee Creek, CaUf 232 

McGlashan, H. D., work of 13 

Maclay Creek, CaUf 472 

Main Supply ditch plus Crystal Springs, CaUf . 472 
MaUbu Creek basin, gaging-station record in 476-482 

general features of 476 

MaUbu Creek near Calabasas, CaUf 476-479 

Maps of parts of southern CaUfornia, showing 

location of gaging stations. . .In pocket. 

Maria Ygnacio Creek, CaUf 539 

Marion Creek, CaUf 232 

West Fork of 232 

Marron Valley, CaUf., Cottonwood Creek at. . 43 
Matagual Creek near Warner Springs, CaUf. 206-209 
Matilija Creek, CaUf 504 

North Fork of 504 

Mayberry Canyon, CaUf 436 

Mentone, CaUf., Highland canal at intake 

weir near 295-296 

Redlands canal near 297-298 

Santa Ana River near 236-261, 549 

Southern California Edison Co.'s canal 

and Greenspot pipe Une near. . 262-280 
Mesa Grande, CaUf., Black Canyon Creek 

near 148-150 

San Luis Rey River at Warner dam site, 

near 170 

San Luis Rey River near 171-178 

Santa Ysabel Creek near ". 118-124 

Mill Creek at Forest Home, CaUf 285-294 

in canyon, at headworks of Craf ton canal, 

CaUf 280-285 

misceUaneous measm-ements in .... 352,361 

Millard Canyon Creek, CaUf 474 

Miner's inch, definition of 13 

equivalents of 19-20 

Mission Creek, CaUf. 539 

Mission tunnel near Santa Barbara, CaUf. ... 508 
Monkey Hill, Calif., Buena Vista Creek at . . . 230 

Mono Creek near Santa Barbara, CaUf 536-538 

Monrovia, CaUf., Sawpit Creek near 427-130 

Monrovia pipe line near Monrovia, CaUf. . . 430-432 

Monserate Creek near Pala, CaUf 232 

Moosa Creek, CaUf : . . 232 

Morena ditch at Pala, CaUf 232 

Morena reservoir , Calif., Cottonwood Creek at. 43 

Morton Creek, Calif 352 

Murray dam, at La Mesa reservoir, upstream 
and downstream sides, plates 

showing 45 

Murrieta Creek, CaUf...... 234 



554 



INDEX. 



N. Page. 

Nellie, CaUf., Escondido Mutual Water Co.'s 

canal near 215-225 

San Luis Key River near 180-182, 229 

Nestor, Calif., Tia Juana River near 23-24 

Newberry ditch, Calif 355-356 

Newell, F. H., and assistants, work of 12 

NewhaU ditch, Calif 497 

Newton ditch, Calif 355 

Nigger Canyon Creek, Calif 231 

NordhoflE, Calif., Ojai Creek at 504 

San Antonio Creek at 504 

Ventura River near 498-500 

O. 

Oceanside, Calif., San Luis Rey River at . . 201, 230 

San Luis Rey River near 199-200 

Ojai Creek at Nordhoff, Calif 504 

Olive, Calif., Santa Ana Irrigation Co.'s 

canalnear 357 

Santa Ana River at 350 

P. 

Pacific Light & Power Corporation's tailrace 

(Sierra plant) 354 

Pacoima Creek, flood record of — 546 

miscellaneous measurements in 471-472, 476 

near San Fernando, Calif 449-452 

near San Fernando, Calif., concrete well, 
house, and control on, plate show- 
ing 450 

Padero Creek, Calif 539 

Pala, Calif., Jennie McGee Creek at 232 

Morena ditch at 232 

Pala Indian Reservation canal at 226-228 

Pauma Creek near 231 

San Luis Rey River at 191-192, 229-230 

San Luis Rey River near 182-191, 229 

Sicklers ditch near 232 

Pala Indian Reservation canal at Pala, 

Calif 226-228 

Paradise Creek, Calif 231 

Pasadena, Calif., Arroyo Seco near 457-464 

Eaton Creek near 464-465 

Pauma Creek, miscellaneous measiuements 

in 231-232 

near Pala, Calif 231 

Pauma ranch ditch, Calif 232 

Pine Creek, Calif 496 

Pine Valley Creek near Dulzura, Calif 36-38 

Piru, Calif., Sabin canal at 497 

Piru Creek, miscellaneous measurements in. . 495 

near Piru, Calif 484-486, 495 

Piru Land & Water Co.'s lower diversion 497 

upper diversion near Esperanza, Calif 497 

Plunge Creek, Calif 352,361 

Potrero Creek, East Fork of, near La Jolla, 

Calif.. 230,231 

near La Jolla, Calif 230 

West Fork of, near La Jolla, Calif 231 

Price current meters, plate showing 14 

Puente ditch, Calif 436 

Ramona, Calif., Santa Maria Creek -near... 159-164 
Santa Ysabel Creek near 125-133 



Page. 
Rating tables, use of. 14 

Records, computed, accuracy of 17-18 

Red Hill, Calif. , measurements at 358-359 

Redlands canal, miscellaneous measure- 
ments of 352 

near Mentone, Calif 297-298 

Redlands timnel, Calif 360 

Rialto, Calif., Lytle Creek at mouth of canyon 

near 304-309 

Richardson ditch at Santa Paula, Calif 497 

Rio Hondo at El Monte, Calif 547 

at Whittier Boulevard bridge, Calif 547 

flood record of 547 

miscellan eous measurements in 474 

Rincon, Calif., Chino Creek at 348-349 

Santa Ana River at 351 

Santa Ana River near 350 

San Luis Rey River at 229 

Temescal Creek near 326-327 

Rincon Creek, Calif 539 

Rincon ditch, Calif. 436 

Rincon Indian Reservation ditch near Valley 

Center, Calif 226 

Riverside Narrows, Calif. , " H " ditch near . . 356 

" J " ditch near 356 

Santa Ana River at 350 

Riverside Water Co 's lower canal, Calif 356 

Riverside Water Co.'s upper canal, Calif. . . . . 356 

Roberts ditch, Calif 355,356 

Rodriguez ditch, Calif 436 

Rogers Creek near Azusa, Calif 421-422 

near Azusa, Calif., v/ells and houses for 
water-stage recorders on, plates 

showing 236, 422 

Roubidoux ditch, Calif 357 

Run-off (depth in inches), definition of 13 

S. 

Sabin canalat Piru, Calif 497 

San Antonio Creek at diversion dam, near 

Claremont, Calif 342-343 

at division box, Calif 345 

at La Crosse, Calif 504 

at Nordhoff, Calif 504 

miscellaneous measmements in 343-345 

near Claremont, Calif 327-331, 343 

near Upland, Calif 331-341 

San Antonio tunnel at the portal, Calif 346 

San Bernardino, Calif., Devil Canyon Creek 

near 302-304 

Lytle Creek at 549 

Lytle Creek near 309-318 

Waterman Canyon Creek near 299-301 

San Bernardino Valley, measurements in, 

above Colton, Calif 361-371 

San Diego River at diverting dam, near 

Lakeside, Calif 59-64 

at diverting dam near Lakeside, CaUf, 

gaging station on, plate showing . 60 

at Lakeside, Calif 65-78 

at Mission dam, near Santee, Calif., 

after flood of 1916, plate showing. . 493 

at San Diego, Calif 83-86 

miscellaneous measurements in 114 

near Santee, Calif 7^83 

South Fork of 115 

South Fork of, near Alpine, Calif lOS-110 



INDEX. 



555 



San Diego River basin, gaging-station records 

in 58-115 

general features of 58-59 

San Dieguito River at Bernardo, Calif 140-143 

Lake Hodges dam on, plate showing 44 

near Bernardo, Calif 143-146 

near Del Mar, Calif 146-148 

San Dieguito River basin, gaging-station 

records in 116-165 

general features of 116 

San Dimas Canyon, flood record of 547 

San Dimas Creek, flood measmrement of .... . 548 

miscellaneous measurements in 434, 439 

near San Dimas, Calif 422-425 

concrete well and house for water- 
stage recorder on, plate showing 237 
San Dimas Wash, Calif., measurements in.. 437 

San Elijo dam site near San Marcos, Calif 165 

San Fernando, Calif., Pacoima Creek near. . 449-452 

San Francisquito Creek, Calif 495 

San Gabriel River above Fish Fork, near 

Azusa, Calif 373 

at headworks near Azusa, Calif 374-375 

Fish Fork of, near Azusa, Calif 402-403 

flood records of 547 

Iron Fork of, at mouth 434 

near Azusa, Calif. 403-404 

miscellaneous measurements of 433,439 

near Azusa, Calif 375-402 

concrete wells and houses for water- 
stage recorders on, plates showing 237 
wading measurement on, plate showing. 17 

North Fork of West Fork of 434 

North Fork of, West and North branches 

of, at Weir, Calif 405-406 

West Fork of, CaUf 405,434 

San Gabriel River basin, gaging-station 

records in 373-439 

general features of 371-373 

San Gabriel Valley, measurements in, on 

Lordsburg Mesa, Calif 43S 

miscellaneous measurements in 437 

San Gabriel Water Co.'s canal near Azusa, 

Calif 436 

San Jacinto River near Elsinore, Calif 318-321 

San Jose Creek, flood measurement of 548 

miscellaneous measurements in 435, 539 

near Goleta, Calif 509-510 

San Juan Capistrano, Calif., Trabuco Creek 

near 234 

San Luis Rey, Calif., Libby ditch near 232 

San Luis Rey ditch near 228 

San Luis Rey ditch, miscellaneous measure- 
ments in , 232 

near San Luis Rey, Calif 228 

San Luis Rey River at Bonsall, Calif. . . 192-196, 550 

at diversion flume, Calif 178-180 

at Oceanside, Calif 201,230 

at Pala, Calif 191-192, 229-230 

at Rincon, Calif 229 

at Warner dam site, near Mesa Grande, 

Calif 170 

miscellaneous measurements of 229-230 

near Bonsall, Calif 196-198 

near Mesa Grande, Calif. 171-178 



San Luis Rey River near Nellie, Calif.. 180-182,229 

near Oceanside, Calif 199-200 

near Pala, Calif 182-191,229 

concrete control on, plate showing.. 16 

near VaUey Center, Calif 229 

near Warner Springs, Calif 166-170 

West Fork of, near Warner Springs, 

CaUf 203-206 

San Luis Rey River basin, gaging-station 

records in 166-232 

general featin-es of 165-166 

San Marcos, Calif., San EUjo dam site near. . 165 

San Pedro Creek, Calif 539 

San Roqui Creek, miscellaneous measure- 
ments in 539 

near Santa Barbara, Calif 508 

San Timoteo Creek, Calif 352 

San Timoteo ditch at Bicknell, Calif 357 

San Vicente Creek at Foster, Calif 113-114, 115 

San Ysidro Creek, Calif 540 

Sand and gravel 360, 438, 475 

Santa Ana Irrigation Co.'s canal at Yorba, 

CaUf 357 

near OUve, Calif 357 

Santa Ana River at Ohve, Calif 350 

at Rincon, Calif 351 

at Riverside Narrows, Calif 350 

at Yorba, Calif 350 

miscellaneous measurements of — 350,355,361 

near Arlington, Calif 350 

near Mentone, Calif 236-261, 549 

gaging station on, plate showing 61 

well and house for water-stage re- 
corder on, plate showing 236 

near Rincon, Calif 350 

Santa Ana River basin, gaging-station 

records in 236-371 

general features of 235-236 

miscellaneous low-water measurements 

in 357 

Santa Anita Canyon, Calif., flood record of. . . 547 
Santa Anita Creek, Calif., miscellaneous 

measurements in 439,475 

near Sierra Madre, CaUf 466-468 

well and house for water-stage re- 
corder on, plate showing 236 

Santa Barbara, CaUf., Mission tunnel near. . 508 

Mono Creek near 536-538 

San Roqui Creek near 508 

Santa Ynez River near 513-526 

Santa Barbara County, CaUf., stream flow 

in 505,540 

Santa Clara River at FiUmore, Calif 483-484 

misceUaneous measurements in 495 

Santa Clara River basin, gaging-station 

records in 483-497 

general features of 482-483 

Santa Clara Water & Irrigation Co.'s canal. . 497 

Santa Fe ranch ditch near Del Mar, Calif 165 

Santa Margarita River basin, gaging-station 

records in 233-234 

general features of 233 

Santa Maria Creek near Ramona, Calif 159-164 

near Ramona, CaUf., gaging station on, 

plate showing 61 



556 



INDEX. 



Page. 

Santa Maria River at Santa Maria, Calif 542 

near Santa Maria, Calif 541-542 

Santa Maria River basin, gaging-station 

records in. 541-542 

general features of 540 

Santa Monica Creek, Calif 540 

Santa Paula, Calif., Farmer's ditch at 497 

Grees ditch at 497 

Richardson ditch at 497 

Sisar Creek near 496 

Santa Paula Creek at Santa Paula, Calif 496 

near Santa Paula, CaUf 492-494, 496 

after flood of 1914, plate showing. 492 

Santa Paula Water Co.'s ditch 497 

Santa Ynez River near Lompoc, Calif 527-535 

near Santa Barbara, Calif . 513, 526 

cable section on, plate showing 451 

foundation for Gibraltar dam on, 

plate showing 451 

Santa Ynez River basin, gaging-station 

records in 512-513 

general features of 512-513 

Santa Ysabel Creek near Escondido, CaUf . 133-140 

near Mesa Grande, Calif 118-124 

control of concrete and solid rock on, 

plate showing 17 

near Ramona, Calif 125-1 33 

concrete control on, plate showing . . . 16 

near Santa Ysabel, Calif 116-118, 165 

Santee, Calif., San Diego River near 79-83 

Sawpit Canyon, flood record of 547 

Sawpit Creek, miscellaneous measurements 

in 435 

near Monrovia, Calif 427-430 

concrete well and shelter on, plate 

showing 423 

Second-feet, definition of 13 

Second-feet per square mile, definition of 13 

Sespe Creek at Sespe, Cahf 490-492 

miscellaneous measurements in 496 

]iear Sespe, Calif 487-490 

West Fork of 496 

Sespe Laiid & Water Co.'s canal, Cahf 497 

Seecher ditch, Calif 357 

Sheep Creek, Calif 435 

Sheldon flume, Calif 505 

Sicklers ditch near Pala, Calif 232 

Sierra Madre, Calif., Little Santa Anita Crek 

near 468-470 

Santa Anita Creek near 466-468 

Sisar Creek, CaUf 496 

Sisquoc River at Sisquoc ranch, Calif 542 

Slauson well, Calif 436 

South Fork flume, Calif 115 

Southern CaUfornia Edison Co.'s canal, 

Calif 352, 354, 436 

near Azusa, Calif 406-420 

near Claremont, Calif 346-348 

and Greenspot pipe line near Mentone, 

Cahf 262-280 

Sparkman Creek, East Fork of 231 

Middle Fork of 231 

West Fork of 231 



Page. 
Spring Brook, Cahf 354 

Stage-discharge relation, definition of 14 

Standiferd ditch, Cahf 436 

State Water Commission, members of 12 

Stevens continuous water-stage recorder, 

plate showing 15 

Strawberry Creek, Cahf 353; 361 

Stream flow in Cahfornia, investigations of. . 10-11 

Sunland, Calif., Tujunga Creek near 452-454 

Sunland Wash, flood record of ^ 546 

Susanna Creek near Warner Springs, Cahf . 212^215 
Sweetwater dam, September 17, 1918, plate 

showing 44 

Sweetwater River at Dehesa* Cahf 58 

at Jamacho Canyon , Calif 58 

at Sweetwater dam, Cahf : . 58 

at Sweetwater reservoir, Cahf • 57 

near Dehesa, Cahf 54-57 

concrete control on, plate showing . . . 16 

near Descanso, Cahf , :44-54 

concrete control on, plate showing.,.: ■ ■ 17 

near Sweetwater dam, Calif 58 

Sweetwater River basin, gaging-station rec- 
ords in : 4'4-58 

general features of. 44 

Sweetwater Water Co., aid by 12 

T. 
Tar Creek, Cahf 496 

Tecolote Creek, Calif „ 540 

Temecula Creek, miscellaneous measurethen'ts 

of 234 

near Temecula, Cahf 233-234 

Temescal, Cahf., Evans ditch near 356 

Temescal Canyon at Harrington Narrows, 

Calif 549 

Temescal Creek near Almond, Calif 151-153 

near Elsinore, Cahf 324-326 

near Rincon, Cahf 326-327 

Temescal Water Co.'s canal near Elsinore, 

Cahf 354 

Temple ditch, Calif 436 

Terms, definition of 13-14 

Thompson Creek, Cahf 435 

Tia Juana River at mouth 43 

at Tia Juana, Mexico 43 

near Nestor, Calif 23-24 

Tia Juana River basin, gaging-station records 

in ., 23-43 

general features of 22-23 

Toro Canyon, Cahf 540 

Townsend ditch, Calif 357 

Trabuco Creek near San Juan Capistrano, 

Cahf 234 

Triunfo Creek near Caiabasas, Calif 480-482 

Trujillo ditch, Calif 357 

Tujunga, Calif., Haines Creek near 455-457 

Tujunga Creek, Cahf 472, 476 

near Sunland, Cahf 452-454 

near Sunland, Cahf., concrete well, house, 

and control on, plate shov/ing. . . 450 
Tunnel diversion near Azusa, Cahf., plate 

showing 61 



INDEX. 



. 557 



17. Page. 

Upland, Calif., San Antonio Creek near — 331-341 
V. 

Valley Center, Calif., Rincon Indian Reserva- 
tion ditch near 226 

San Luis Rey River near 229 

Velocity in feet per second, table for convert- 
ing, into velocity in miles per 

hour 19 

Ventura Light & Power Co.'s canal 505 

Ventura River, miscellaneous measurements 

in 504 

near Ventura, CaUf 501-503 

after flood of 1914, plate showing 492 

North Fork of 504 

near Nordhoff, Calif 498-500 

Ventura River basin, gaging-staticn records 

in 498-505 

general features of 498 

Verdugo Creek, flood record of 546 

Volcan Land & Water Co., aid by 12 

W. 

Walnut Creek, flood measurement of 548 

Warner Springs, Cahf., Agua Cahente Creek 

near 202-203 

Big Lake Creek near 230 

Canada Agua Caliente at 230 

Canada Verde Creek near 202 

Carrizo Creek near 209-212 

Matagual Creek near 206-209 



Warner Springs, Calif., San Luis Rey River 

near 166-170 

Susanna Creek near 212-215 

West Fork of San Luis Rey River near. 203-206 

Waterman Canyon Creek, Calif 353-354, 361 

near San Bernardino, Calif 299-301 

plate showing gravel and sand de- 
posited by first high water after 

forest fire 451 

Water-stage recorders 17 

plate showing 15 

well and house for, plate showing 236 

Weather Bureau, United States, aid by 12 

West Potrero ditch, Cahf 231 

West San Pasqual ditch, Cahf 165 

near Escondido, Cahf 157-159 

West Twin Creek. See Waterman Canyon 

Creek. 
Whittier Boulevard bridge, Cahf., Rio Hondo 

at 547 

Whittier ditch, Cahf 436 

Wilbur ditch, Cahf 355,357 

Y. 

Yorba, Calif., Santa Ana Irrigation Co.'s 

canal at 357 

Santa Ana River at 350 

Yorba ditch at Esperanza, Cahf 357 " 

Z. 

Zero flow, point of, definition of 14 



ADDITIONAL COPIES 

OF THIS PUBLICATION MAY BE PROCUEED FROM 

THE SUPERINTENDENT OF DOCUMENTS 

GOVERNMENT PRINTING OFFICE 

WASHINGTON, D. C. 

AT 

65 CENTS PER COPY 

A 



M 



WAT] 



R. 2 E. 45' 



R. 3 E. 




MAP OF A PART OF '' 








I 


SOUTHERN CALIFOENIA 

SHOWING GAGING STATIONS 
PART B 


O 

o 






Gaging'.tation * 


1 |i^=:^'£^""""' I i:E"HEE.fE:«„ 


>?^ 






ii S:ES^'"""""" V '"-■.: 






V 
^ 






ii=~::: '^'" ';,=^,,::,^f 








-- - 


a w. s. „.. d« „ 










, 



i . • 


'■ • [ 




r 

I 
1 












.; .... 


'' 1 V ■■■"'■ 


' " .X . 


.'. ■ K :;„ 


i: - 1 




^ 


1 ■ '" 








:^ 


1 • 


- 






■?•. 


'^ ^ ^^^ r 4 J, . 












< 


'' * -' A' ,, 








■ ; ■- 


■1" 




V, 














1 

























MAP OF A PART OF SOUTHEKN CVLIFORM V. ^riOWING GAGING STATIONS (PART A) 



,C3M 







019 953 861 5 



